e10vk
    UNITED STATES SECURITIES AND
    EXCHANGE COMMISSION
    Washington, D.C.
    20549
    Form 10-K
 
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    (Mark One)
    
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    ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
    SECURITIES EXCHANGE ACT OF 1934 
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    For the fiscal year ended
    December 31,
    2010
    
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    TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
    SECURITIES EXCHANGE ACT OF 1934
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    For the transition period
    from          to          
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    Commission File Number
    001-32657
    NABORS INDUSTRIES
    LTD.
    (Exact name of registrant as
    specified in its charter)
 
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    Bermuda
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    980363970
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    (State or Other Jurisdiction
    of 
    Incorporation or
    Organization)
    
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    (I.R.S. Employer 
    Identification No.)
    
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    Mintflower Place 
    8 Par-La-Ville Road 
    Hamilton, HM08 
    Bermuda 
    (Address of principal
    executive offices)
    
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    N/A 
    (Zip
    Code)
    
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    (441) 292-1510
    (Registrants telephone
    number, including area
    code)
    
 
    Securities registered pursuant to Section 12(b) of the
    Securities Exchange Act of 1934:
 
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    Title of Each Class
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    Name of Each Exchange on Which Registered
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    Common shares, $.001 par value per share
 
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    The New York Stock Exchange
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    Securities registered pursuant to Section 12(g) of the
    Securities Exchange Act of 1934:
    None.
 
    Indicate by check mark whether the registrant is a well-known
    seasoned issuer, as defined in Rule 405 of the Securities
    Act.  YES þ     NO o
    
 
    Indicate by check mark if the registrant is not required to file
    reports pursuant to Section 13 or Section 15(d) of the
    Act.  YES o     NO þ
    
 
    Indicate by check mark whether the registrant: (1) has
    filed all reports required to be filed by Section 13 or
    15(d) of the Securities Exchange Act of 1934 during the
    preceding 12 months (or for such shorter period that the
    registrant was required to file such reports), and (2) has
    been subject to such filing requirements for the past
    90 days.  YES þ     NO o
    
 
    Indicate by check mark whether the registrant has submitted
    electronically and posted on its corporate Website, if any,
    every Interactive Data File required to be submitted and posted
    pursuant to Rule 405 of
    Regulation S-T
    during the preceding
    12 months.  YES þ     NO o
    
 
    Indicate by check mark if disclosure of delinquent filers
    pursuant to Item 405 of
    Regulation S-K
    is not contained herein, and will not be contained, to the best
    of registrants knowledge, in definitive proxy or
    information statements incorporated by reference in
    Part III of this
    Form 10-K
    or any amendment to this
    Form 10-K.  þ
    
 
    Indicate by check mark whether the registrant is a large
    accelerated filer, an accelerated filer, a non-accelerated
    filer, or a smaller reporting company. See the definitions of
    large accelerated filer, accelerated
    filer and smaller reporting company in Rule
    12b-2 of the Exchange Act. (Check one):
 
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    Large accelerated filer þ
    
 
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    Accelerated filer o
    
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    Non-accelerated filer o 
    (Do not check if a smaller reporting company)
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    Smaller Reporting company o
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    Indicate by check mark whether the registrant is a shell company
    (as defined in
    Rule 12b-2
    of the Exchange
    Act).  YES o     NO þ
    
 
    The aggregate market value of the 192,800,936 common shares, par
    value $.001 per share, held by non-affiliates of the registrant,
    based upon the closing price of our common shares as of the last
    business day of our most recently completed second fiscal
    quarter, June 30, 2010, of $17.62 per share as reported on
    the New York Stock Exchange, was $3,397,152,492. Common shares
    held by each officer and director and by each person who owns 5%
    or more of the outstanding common shares have been excluded in
    that such persons may be deemed affiliates. This determination
    of affiliate status is not necessarily a conclusive
    determination for other purposes.
 
    The number of common shares, par value $.001 per share,
    outstanding as of February 24, 2011 was 286,145,675.
 
    DOCUMENTS
    INCORPORATED BY REFERENCE (to the extent indicated
    herein)
 
    Specified
    portions of the definitive Proxy
    Statement to be distributed in connection with our 2011 annual
    meeting of shareholders (Part III).
    
 
 
 
 
    NABORS
    INDUSTRIES LTD.
    
    Form 10-K
    Annual Report
    For the Year Ended December 31, 2010
    
    Table of Contents
 
    
    2
 
    Our internet address is www.nabors.com. We make available
    free of charge through our website our annual report on
    Form 10-K,
    quarterly reports on
    Form 10-Q,
    current reports on
    Form 8-K
    and amendments to those reports filed or furnished pursuant to
    Section 13(a) or 15(d) of the Securities Exchange Act of
    1934, as amended (the Exchange Act), as soon as
    reasonably practicable after we electronically file such
    material with, or furnish it to, the Securities and Exchange
    Commission (the SEC). In addition, a glossary of
    drilling terms used in this document and documents relating to
    our corporate governance (such as committee charters, governance
    guidelines and other internal policies) can be found on our
    website. The SEC maintains an internet site (www.sec.gov)
    that contains reports, proxy and information statements and
    other information regarding issuers that file electronically
    with the SEC.
 
    FORWARD-LOOKING
    STATEMENTS
 
    We often discuss expectations regarding our future markets,
    demand for our products and services, and our performance in our
    annual and quarterly reports, press releases, and other written
    and oral statements. Statements relating to matters that are not
    historical facts are forward-looking statements
    within the meaning of the safe harbor provisions of
    Section 27A of the Securities Act of 1933, as amended (the
    Securities Act), and Section 21E of the
    Exchange Act. These forward-looking statements are
    based on an analysis of currently available competitive,
    financial and economic data and our operating plans. They are
    inherently uncertain and investors should recognize that events
    and actual results could turn out to be significantly different
    from our expectations. By way of illustration, when used in this
    document, words such as anticipate,
    believe, expect, plan,
    intend, estimate, project,
    will, should, could,
    may, predict and similar expressions are
    intended to identify forward-looking statements.
 
    You should consider the following key factors when evaluating
    these forward-looking statements:
 
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    fluctuations in worldwide prices of and demand for natural gas
    and oil;
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    fluctuations in levels of natural gas and oil exploration and
    development activities;
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    fluctuations in the demand for our services;
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    the existence of competitors, technological changes and
    developments in the oilfield services industry;
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    the existence of operating risks inherent in the oilfield
    services industry;
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    the possibility of changes in tax and other laws and regulations;
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    the possibility of political instability, war or acts of
    terrorism in any of the countries where we operate; and
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    general economic conditions including the capital and credit
    markets.
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    Our businesses depend to a large degree on the level of spending
    by oil and gas companies for exploration, development and
    production activities. Therefore, a sustained increase or
    decrease in the price of natural gas or oil that has a material
    impact on exploration, development or production activities
    could also materially affect our financial position, results of
    operations and cash flows.
 
    The above description of risks and uncertainties is by no means
    all-inclusive, but is designed to highlight what we believe are
    important factors to consider. For a more detailed description
    of risk factors, please refer to Part I,
    Item 1A.  Risk Factors.
 
    Unless the context requires otherwise, references in this report
    to we, us, our, the
    Company, or Nabors mean Nabors Industries Ltd.
    and, where the context requires, includes our subsidiaries. Our
    subsidiaries include Nabors Industries, Inc., a Delaware
    corporation (Nabors Delaware).
    
    3
 
 
    PART I
 
 
    Introduction
 
    Nabors is the largest land drilling contractor in the world and
    one of the largest land well-servicing and workover contractors
    in the United States and Canada:
 
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    We actively market approximately 550 land drilling rigs for
    oil and gas land drilling operations in the U.S. Lower
    48 states, Alaska, Canada, South America, Mexico, the
    Caribbean, the Middle East, the Far East, Russia and Africa.
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    We actively market approximately 555 rigs for land
    well-servicing and workover work in the United States and
    approximately 172 rigs for land well-servicing and workover work
    in Canada.
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    We are also a leading provider of offshore platform workover and
    drilling rigs, and actively market 37 platform, 13
    jack-up and
    three barge rigs in the United States, including the Gulf of
    Mexico, and multiple international markets.
 
    In addition to the foregoing services:
 
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    We offer a wide range of ancillary well-site services, including
    hydraulic fracturing, engineering, transportation and disposal,
    construction, maintenance, well logging, directional drilling,
    rig instrumentation, data collection and other support services
    in select United States and international markets.
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    We manufacture and lease or sell top drives for a broad range of
    drilling applications, directional drilling systems, rig
    instrumentation and data collection equipment, pipeline handling
    equipment and rig reporting software.
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    We invest in oil and gas exploration, development and production
    activities in the United States, Canada and Colombia through
    both our wholly owned subsidiaries and our oil and gas joint
    ventures in which we hold
    49-50%
    ownership interests.
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    We have a 51% ownership interest in a joint venture in Saudi
    Arabia, which owns and actively markets nine rigs in addition to
    the rigs we lease to the joint venture.
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    We also provide logistics services for onshore drilling in
    Canada using helicopters and fixed-wing aircraft.
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    During the third quarter of 2010, we acquired through a tender
    offer and merger transaction (the Superior Merger),
    all of the outstanding common stock of Superior Well Services,
    Inc. (Superior). Superior provides a wide range of
    wellsite solutions to oil and natural gas companies, consisting
    primarily of technical pumping services, including hydraulic
    fracturing, a process sometimes used in the completion of oil
    and gas wells whereby water, sand and chemicals are injected
    under pressure into subsurface formations to stimulate gas and,
    to a lesser extent, oil production, and down-hole surveying
    services. The effects of the Superior Merger and the operating
    results of Superior from the acquisition date to
    December 31, 2010 are included in the accompanying audited
    consolidated financial statements and are reflected in our
    operating segment, titled Pressure Pumping. See
    Note 7  Acquisitions and Divestitures in
    Part II, Item 8.  Financial Statements and
    Supplementary Data for additional information.
 
    Nabors was formed as a Bermuda exempt company on
    December 11, 2001. Through predecessors and acquired
    entities, Nabors has been continuously operating in the drilling
    sector since the early 1900s. Our principal executive offices
    are located at Mintflower Place, 8 Par-La-Ville Road,
    Hamilton, HM08, Bermuda, and our phone number there is
    (441) 292-1510.
 
    Our Fleet
    of Rigs
 
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    Land Rigs.  A land-based drilling rig generally
    consists of engines, a drawworks, a mast (or derrick), pumps to
    circulate the drilling fluid (mud) under various pressures,
    blowout preventers, drill string and
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    related equipment. The engines power the different pieces of
    equipment, including a rotary table or top drive that turns the
    drill string, causing the drill bit to bore through the
    subsurface rock layers. Rock cuttings are carried to the surface
    by the circulating drilling fluid. The intended well depth, bore
    hole diameter and drilling site conditions are the principal
    factors that determine the size and type of rig most suitable
    for a particular drilling job.
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    Special-purpose drilling rigs used to perform workover services
    consist of a mobile carrier, which includes an engine, drawworks
    and a mast, together with other standard drilling accessories
    and specialized equipment for servicing wells. These rigs are
    specially designed for major repairs and modifications of oil
    and gas wells, including standard drilling functions. A
    well-servicing rig is specially designed for periodic
    maintenance of oil and gas wells for which service is required
    to maximize the productive life of the wells. The primary
    function of a well-servicing rig is to act as a hoist so that
    pipe, sucker rods and down-hole equipment can be run into and
    out of a well, although they also can perform standard drilling
    functions. Because of size and cost considerations, these
    specially designed rigs are used for these operations rather
    than the larger drilling rigs typically used for the initial
    drilling job.
 
    Land-based drilling rigs are moved between well sites and
    between geographic areas of operations using our fleet of
    cranes, loaders and transport vehicles or those of third-party
    service providers. Well-servicing rigs are typically
    self-propelled, while heavier capacity workover rigs are either
    self-propelled or trailer-mounted and include auxiliary
    equipment, which is either transported on trailers or moved with
    trucks.
 
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    Platform Rigs.  Platform rigs provide offshore
    workover, drilling and re-entry services. Our platform rigs have
    drilling
    and/or
    well-servicing or workover equipment and machinery arranged in
    modular packages that are transported to, and assembled and
    installed on, fixed offshore platforms owned by the customer.
    Fixed offshore platforms are steel tower-like structures that
    either stand on the ocean floor or are moored floating
    structures. The top portion, or platform, sits above the water
    level and provides the foundation upon which the platform rig is
    placed.
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    Jack-up
    Rigs.  Jack-up
    rigs are mobile, self-elevating drilling and workover platforms
    equipped with legs that can be lowered to the ocean floor until
    a foundation is established to support the hull, which contains
    the drilling
    and/or
    workover equipment, jacking system, crew quarters, loading and
    unloading facilities, storage areas for bulk and liquid
    materials, helicopter landing deck and other related equipment.
    The rig legs may operate independently or have a mat attached to
    the lower portion of the legs in order to provide a more stable
    foundation in soft bottom areas. Many of our
    jack-up rigs
    are of cantilever design  a feature that permits the
    drilling platform to be extended out from the hull, allowing it
    to perform drilling or workover operations over adjacent, fixed
    platforms. Nabors shallow workover
    jack-up rigs
    generally are subject to a maximum water depth of approximately
    125 feet, while some of our
    jack-up rigs
    may drill in water depths as shallow as 13 feet. Nabors
    also has deeper water
    jack-up rigs
    that are capable of drilling at depths between eight feet and
    150 to 250 feet. The water depth limit of a particular rig
    is determined by the length of its legs and by the operating
    environment. Moving a rig from one drill site to another
    involves lowering the hull down into the water until it is
    afloat and then jacking up its legs with the hull floating. The
    rig is then towed to the new drilling site.
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    Inland Barge Rigs.  One of Nabors barge
    rigs is a full-size drilling unit. We also own two workover
    inland barge rigs. These barges are designed to perform plugging
    and abandonment, well-service or workover services in shallow
    inland, coastal or offshore waters. Our barge rigs can operate
    at depths between three and 20 feet.
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    Additional information regarding the geographic markets in which
    we operate and our business segments can be found in
    Note 22  Segment Information in Part II,
    Item 8.  Financial Statements and Supplementary
    Data.
    
    5
 
    Customers:
    Types of Drilling Contracts
 
    Our customers include major oil and gas companies, national oil
    and gas companies and independent oil and gas companies. No
    customer accounted for more than 10% of our consolidated
    revenues in 2010 or 2009.
 
    On land in the U.S. Lower 48 states and Canada, we
    typically enter into contracts with durations ranging from one
    to three years. Under these contracts, our rigs are committed to
    one customer over that term. Most of our recent contracts for
    newly constructed rigs have three-year terms. Contracts relating
    to offshore drilling and land drilling in Alaska and
    international markets generally provide for longer terms,
    usually from one to five years. Offshore workover projects are
    often contracted on a single-well basis. We generally are
    awarded drilling contracts through competitive bidding, although
    we occasionally enter into contracts by direct negotiation. Most
    of our single-well contracts are subject to termination by the
    customer on short notice, but some can be firm for a number of
    wells or a period of time, and may provide for early termination
    compensation in certain circumstances. Contract terms and rates
    differ depending on a variety of factors, including competitive
    conditions, the geographical area, the geological formation to
    be drilled, the equipment and services to be supplied, the
    on-site
    drilling conditions and the anticipated duration of the work to
    be performed.
 
    In recent years, all of our drilling contracts have been daywork
    contracts. A daywork contract generally provides for a basic
    rate per day when drilling (the dayrate for our providing a rig
    and crew) and for lower rates when the rig is moving, or when
    drilling operations are interrupted or restricted by equipment
    breakdowns, adverse weather conditions or other conditions
    beyond our control. In addition, daywork contracts may provide
    for a lump-sum fee for the mobilization and demobilization of
    the rig, which in most cases approximates our incurred costs. A
    daywork contract differs from a footage contract (in which the
    drilling contractor is paid on the basis of a rate per foot
    drilled) and a turnkey contract (in which the drilling
    contractor is paid for drilling a well to a specified depth for
    a fixed price).
 
    Well-servicing
    and Workover Services
 
    Although some wells in the United States flow oil to the surface
    without mechanical assistance, most are in mature production
    areas that require pumping or some other form of artificial
    lift. Pumping oil wells characteristically require more
    maintenance than flowing wells because of the operation of the
    mechanical pumping equipment.
 
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    Well-servicing/Maintenance Services.  We
    provide maintenance services on the mechanical apparatus used to
    pump or lift oil from producing wells. These services include,
    among other activities, repairing and replacing pumps, sucker
    rods and tubing. They also occasionally include drilling
    services. We provide the rigs, equipment and crews for these
    tasks, which are performed on both oil and natural gas wells,
    but which are more commonly required on oil wells. Maintenance
    services typically take less than 48 hours to complete.
    Rigs generally are provided to customers on a call-out basis. We
    are paid an hourly rate and work typically is performed five
    days a week during daylight hours.
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    Workover Services.  Producing oil and natural
    gas wells occasionally require major repairs or modifications,
    called workovers. Workovers may be required to
    remedy failures, modify well depth and formation penetration to
    capture hydrocarbons from alternative formations, clean out and
    recomplete a well when production has declined, repair leaks or
    convert a depleted well to an injection well for secondary or
    enhanced recovery projects. Workovers normally are carried out
    with a rig that includes standard drilling accessories such as
    rotary drilling equipment, mud pumps, mud tanks and blowout
    preventers plus other specialized equipment for servicing rigs.
    A workover may last anywhere from a few days to several weeks.
    We are paid a daily rate and work is generally performed seven
    days a week, 24 hours a day.
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    Completion Services.  The kinds of activities
    necessary to carry out a workover operation are essentially the
    same as those required to complete a well when it is
    first drilled. The completion process may involve selectively
    perforating the well casing at the depth of discrete producing
    zones, stimulating and testing these zones and installing
    down-hole equipment. The completion process may
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    take a few days to several weeks. We are paid an hourly rate and
    work is generally performed seven days a week, 24 hours a
    day.
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    Production and Other Specialized Services.  We
    also can provide other specialized services, including onsite
    temporary fluid storage; the supply, removal and disposal of
    specialized fluids used during certain completion and workover
    operations; and the removal and disposal of salt water that
    often accompanies the production of oil and natural gas. We also
    provide plugging services for wells from which the oil and
    natural gas has been depleted or further production has become
    uneconomical. We are paid an hourly or a
    per-unit
    rate, as applicable, for these services.
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    Pressure
    Pumping Services
 
    In connection with the Superior Merger, we conduct technical and
    fluid logistics services. Technical services include technical
    pumping services, completion, production and rental tool
    services and down-hole surveying services. Fluid logistics
    services include those services related to the transportation,
    storage and disposal of fluids that are used in the drilling,
    development and production of hydrocarbons. During the period
    September 10, 2010 through December 31, 2010,
    approximately 5.5% of revenues from our Pressure Pumping
    operating segment came from an unconsolidated Nabors affiliate.
    Our proportionate share of any profits resulting from sales to
    this affiliate were eliminated in consolidation.
 
    Oil and
    Gas Investments
 
    In our Oil and Gas operating segment, we invest in oil and gas
    exploration, development and production operations in the United
    States, Canada and Colombia. In addition, in 2006, we entered
    into an agreement with First Reserve Corporation to form select
    joint ventures to invest in oil and gas exploration
    opportunities worldwide. During 2007, three joint ventures were
    formed for operations in the United States, Canada and Colombia.
    We hold a 50% ownership interest in the Canadian entity, Stone
    Mountain Venture Partnership (SMVP) and 49.7%
    ownership interests in the U.S. and Colombia entities, NFR
    Energy LLC (NFR Energy) and Remora Energy
    International LP (Remora), respectively. We account
    for these investments using the equity method of accounting.
    Each joint venture pursues development and exploration projects
    with both existing Nabors customers and other operators in a
    variety of forms, including operated and non-operated working
    interests, joint ventures, farm-outs and acquisitions. Our Oil
    and Gas operating segment includes both wholly owned and
    joint-venture operations and focuses on the exploration for and
    the acquisition, development and production of natural gas, oil
    and natural gas liquids in Alaska, Arkansas, Louisiana,
    Oklahoma, Mississippi, Montana, North Dakota, Texas, Utah and
    Wyoming. Outside of the United States, we and our joint ventures
    own or have interests in the Canadian provinces of Alberta and
    British Columbia and in Colombia.
 
    During 2010, we began actively marketing some of our oil and gas
    assets in Canada and Colombia, including our ownership interests
    in SMVP and Remora. Additional information about recent
    activities for this segment can be found in Part II,
    Item 7.  Managements Discussion and
    Analysis of Financial Condition and Results of Operations as
    well as Part II, Item 8.  Financial
    Statements and Supplementary Data 
    Note 21  Discontinued Operations.
 
    Other
    Services
 
    Canrig Drilling Technology Ltd., our drilling technologies and
    well services subsidiary, manufactures top drives, which are
    installed on both onshore and offshore drilling rigs. We market
    our top drives throughout the world. We rent top drives and
    catwalks, and provide installation, repair and maintenance
    services to our customers. We also offer rig instrumentation
    equipment, including proprietary
    RIGWATCHtm
    software and computerized equipment that monitors a rigs
    real-time performance. Our directional drilling system,
    ROCKITtm,
    is experiencing high growth in the marketplace. In addition, we
    specialize in daily reporting software for drilling operations,
    making this data available through the internet. We also provide
    mudlogging services. Canrig Drilling Technology Canada Ltd., one
    of our Canadian subsidiaries, manufactures catwalks
    
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    which are installed on both onshore and offshore drilling rigs.
    Ryan Energy Technologies, Inc., another one of our subsidiaries,
    manufactures and sells directional drilling and rig
    instrumentation equipment and provides data collection services
    to oil and gas exploration and service companies. Nabors has a
    50% ownership interest in Peak Oilfield Service Company, a
    general partnership with a subsidiary of Cook Inlet Region,
    Inc., a leading Alaskan native corporation. Peak Oilfield
    Service Company provides heavy equipment to move drilling rigs,
    water, other fluids and construction materials, primarily on
    Alaskas North Slope and in the Cook Inlet region. The
    partnership also provides construction and maintenance for ice
    roads, pads, facilities, equipment, drill sites and pipelines.
    Nabors also has a 50% membership interest in Alaska Interstate
    Construction, L.L.C., a general contractor involved in the
    construction of roads, bridges, dams, drill sites and other
    facility sites, as well as the provision of mining support in
    Alaska; the other member of Alaska Interstate Construction,
    L.L.C. is a subsidiary of Cook Inlet Region, Inc. Revenues are
    derived from services to companies engaged in mining and public
    works. Nabors Blue Sky Ltd. leases aircraft used for logistics
    services for onshore drilling in Canada using helicopters and
    fixed-wing aircraft.
 
    Our
    Employees
 
    As of December 31, 2010, Nabors employed approximately
    23,412 persons, of whom approximately 2,892 were employed
    by unconsolidated affiliates. We believe our relationship with
    our employees is generally good.
 
    Some rig employees in Argentina and Australia are represented by
    collective bargaining units.
 
    Seasonality
 
    Our Canada and Alaska drilling and workover operations are
    subject to seasonal variations as a result of weather conditions
    and generally experience reduced levels of activity and
    financial results during the second quarter of each year. In
    addition, our pressure pumping operations located in the
    Appalachian, Mid-Continent, and Rocky Mountain regions of the
    United States can be adversely affected by seasonal weather
    conditions, primarily in the spring, as many municipalities
    impose weight restrictions on the paved roads that lead to our
    jobsites due to the muddy conditions caused by spring thaws.
    Global warming could lengthen these periods of reduced activity,
    but we cannot currently estimate to what degree. Our overall
    financial results reflect the seasonal variations experienced in
    these operations. Seasonality does not materially impact the
    remaining portions of our business.
 
    Research
    and Development
 
    Research and development constitutes a growing part of our
    overall business. The effective use of technology is critical to
    maintaining our competitive position within the drilling
    industry. We expect to continue developing technology internally
    and acquiring technology through strategic acquisitions.
 
    Industry/Competitive
    Conditions
 
    To a large degree, Nabors businesses depend on the level
    of capital spending by oil and gas companies for exploration,
    development and production activities. A sustained increase or
    decrease in the price of natural gas or oil could have a
    material impact on the exploration, development and production
    activities of our customers and could materially affect our
    financial position, results of operations and cash flows. See
    Part I, Item 1A.  Risk Factors 
    Fluctuations in oil and natural gas prices could adversely
    affect drilling activity and our revenues, cash flows and
    profitability.
 
    Our industry remains competitive. The number of available rigs
    exceeds demand in many of our markets, resulting in strong price
    competition. Many rigs can be readily moved from one region to
    another in response to changes in levels of activity, which may
    result in an oversupply of rigs in such areas. Many of the total
    available contracts are currently awarded on a bid basis, which
    further increases competition based on price. The land drilling,
    workover and well-servicing market is generally more competitive
    than the offshore market due to the larger number of rigs and
    market participants.
    
    8
 
    From 2005 through most of 2008, demand was strong for drilling
    services driven by a sustained increase in the level of
    commodity prices; supply of and demand for land drilling
    services were largely in balance in the United States and other
    markets, with demand actually exceeding supply in some of our
    markets. This resulted in an increase in rates being charged for
    rigs across our North American, Offshore and International
    markets. In late 2008, falling oil prices and the declines in
    natural gas prices forced a curtailment of drilling-related
    expenditures by many companies and resulted in an oversupply of
    rigs in the markets where we operate. During 2009 and the first
    half of 2010, this continued decline in drilling and related
    activity impacted our key markets.
 
    In all of our geographic markets, we believe price and the
    availability and condition of equipment are the most significant
    factors in determining which drilling contractor is awarded a
    job. Other factors include the availability of trained personnel
    possessing the required specialized skills; the overall quality
    of service and safety record; and the ability to offer ancillary
    services. Increasingly, the ability to deliver rigs with new
    technology and features is becoming a competitive factor. In
    international markets, experience in operating in certain
    environments, as well as customer alliances, have been factors
    in the selection of Nabors.
 
    Certain competitors are present in more than one of Nabors
    operating regions, although no one competitor operates in all of
    these areas. In the U.S. Lower 48 states, we compete
    with Helmerich and Payne, Inc. and Patterson-UTI Energy, Inc.,
    and several hundred other competitors with national, regional or
    local rig operations. In our U.S. Land Well-servicing
    operating segment, we compete with Basic Energy Services, Inc.,
    Key Energy Services, Inc., Complete Energy Services and numerous
    other competitors having smaller regional or local rig
    operations. In Canada and U.S. Offshore, we compete with
    many firms of varying size, several of which have more
    significant operations in those areas than Nabors. Elsewhere, we
    compete directly with various contractors at each location where
    we operate. Our Pressure Pumping operating segment competes with
    small and mid-sized independent contractors, as well as major
    oilfield services companies with operations outside of the
    United States. We believe that the market for land drilling,
    well-servicing and workover and pressure pumping contracts will
    continue to be competitive for the foreseeable future.
 
    Our other operating segments represent a relatively smaller part
    of our business, and we have numerous competitors in each area.
    Our Canrig Drilling Technology Ltd. subsidiary is one of the
    three major manufacturers of top drives. Its largest competitors
    in that market are National Oilwell Varco and Tesco. Its largest
    competitors in the manufacture of rig instrumentation systems
    are Pason and National Oilwell Varcos Totco subsidiary.
    Mudlogging services are provided by a number of entities that
    serve the oil and gas industry on a regional basis. In the
    U.S. Lower 48 states, there are hundreds of rig
    transportation companies in each of our operating regions. In
    Alaska, Peak Oilfield Service principally competes with Alaska
    Petroleum Contractors for road, pad and pipeline maintenance,
    and is one of many drill site and road construction companies,
    the largest of which is VECO Corporation, and Alaska Interstate
    Construction principally competes with large general
    contractors, including Granite Construction Company and Quality
    Asphalt Paving on public works projects and Alaska Frontier
    Constructors and CH2MHill on resource development projects.
 
    Our
    Business Strategy
 
    Since 1987, with the installation of our current management
    team, we have adhered to a consistent strategy aimed at
    positioning Nabors to grow and prosper in times of good market
    conditions and to mitigate adverse effects during periods of
    poor market conditions. We have maintained a financial posture
    that allows us to capitalize on market weakness and strength by
    adding to our business base, thereby enhancing our upside
    potential. The principal elements of our strategy have been to:
 
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    Maintain flexibility to respond to changing conditions.
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    Maintain a conservative and flexible balance sheet.
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    Build a base of premium assets cost effectively.
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    Establish and maintain low operating costs through economies of
    scale.
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    Develop and maintain long-term, mutually attractive
    relationships with key customers and vendors.
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    9
 
 
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    Build a diverse business in long-term, sustainable and
    worthwhile geographic markets.
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    Recognize and seize opportunities as they arise.
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    Continually improve safety, quality and efficiency.
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    Implement leading-edge technology where cost effective to do so.
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    Increase shareholder value by expanding our oil and gas reserves
    and production.
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    We have designed our business strategy to allow us to grow and
    remain profitable in any market environment. The major
    developments in our business in recent years illustrate our
    implementation of this strategy and its continuing success.
    Beginning in 2005, we took advantage of the robust rig market in
    the United States and elsewhere to obtain a high volume of
    contracts for newly constructed rigs. A large portion of these
    rigs are subject to long-term contracts with creditworthy
    customers with the most significant impact occurring in our
    International operations. This will not only expand our
    operations with the latest
    state-of-the-art
    rigs, which should better weather downturns in market activity,
    but eventually replace the oldest and least capable rigs in our
    existing fleet. However, this positive trend in the rig market
    slowed in the fourth quarter of 2008 and throughout 2009 and the
    first half of 2010, due to the continued steady decline in
    natural gas and oil prices. As a result of lower commodity
    prices, many of our customers drilling programs were
    reduced and the demand for additional rigs was substantially
    reduced. In the latter half of 2010, commodity prices
    strengthened and our drilling activity improved. Although we
    expect market conditions to remain challenging during 2011, we
    believe the deployment of our newer and higher-margin rigs under
    long-term contracts will enhance our competitive position when
    market conditions improve.
 
    Acquisitions
    and Divestitures
 
    We have grown from a land drilling business centered in the
    U.S. Lower 48 states, Canada and Alaska to an
    international business with operations on land and offshore in
    many of the major oil and gas markets in the world. At the
    beginning of 1990, our fleet consisted of 44 actively marketed
    land drilling rigs in Canada, Alaska and in various
    international markets. Today, our worldwide fleet of actively
    marketed rigs consists of over 550 land drilling rigs, more
    than 700 rigs for land well-servicing and workover work in the
    United States and Canada, offshore platform rigs,
    jack-up
    units, barge rigs and a large component of trucks and fluid
    hauling vehicles. This growth was fueled in part by strategic
    acquisitions. Although Nabors continues to examine
    opportunities, there can be no assurance that attractive rigs or
    other acquisition opportunities will continue to be available,
    that the pricing will be economical or that we will be
    successful in making such acquisitions in the future.
 
    On January 3, 2006, we completed an acquisition of 1183011
    Alberta Ltd., a wholly owned subsidiary of Airborne Energy
    Solutions Ltd., through the purchase of all common shares
    outstanding for cash for a total purchase price of
    Cdn.$41.7 million (U.S. $35.8 million). In
    addition, we assumed debt, net of working capital, totaling
    approximately Cdn.$10.0 million
    (U.S. $8.6 million). On that date, Nabors Blue Sky
    Ltd. (formerly 1183011 Alberta Ltd.) owned 42 helicopters and
    fixed-wing aircraft and owned and operated a fleet of
    heliportable well-service equipment. The purchase price was
    allocated based on final valuations of the fair value of assets
    acquired and liabilities assumed as of the acquisition date and
    resulted in goodwill of approximately
    U.S. $18.8 million. During 2008 and 2009, the results
    of our impairment tests of goodwill and intangible assets
    indicated a permanent impairment to goodwill and to an
    intangible asset of Nabors Blue Sky Ltd. As such, the goodwill
    has been fully impaired as of December 31, 2009.
 
    On May 31, 2006, we completed an acquisition of Pragma
    Drilling Equipment Ltd.s business, which manufactures
    catwalks, iron roughnecks and other related oilfield equipment,
    through an asset purchase consisting primarily of intellectual
    property for a total purchase price of Cdn.$46.1 million
    (U.S. $41.5 million). The purchase price has been
    allocated based on final valuations of the fair market value of
    assets acquired and liabilities assumed as of the acquisition
    date and resulted in goodwill of approximately
    U.S. $10.5 million.
 
    On August 8, 2007, we sold our Sea Mar business which had
    previously been included in Other Operating Segments. The assets
    included 20 offshore supply vessels and related assets,
    including a right under a vessel
    
    10
 
    construction contract. The operating results of this business
    for years ended December 31, 2007 and before are accounted
    for as discontinued operations.
 
    On September 10, 2010, we completed the Superior Merger at
    a cash purchase price of $22.12 per share, or approximately
    $681.3 million in the aggregate. The purchase price was
    allocated to the net tangible and intangible assets acquired and
    liabilities assumed based on their fair value at the acquisition
    date. The excess of the purchase price over such fair values was
    $335.0 million and was recorded as goodwill. Superior
    provides a wide range of wellsite solutions to oil and natural
    gas companies, primarily technical pumping services and
    down-hole surveying services. The effects of the Superior Merger
    and the operating results from the acquisition date to
    December 31, 2010 are reflected in the accompanying audited
    consolidated financial statements. Additional information about
    Superior can be found in Part II, Item 7. 
    Managements Discussion and Analysis of Financial Condition
    and Results of Operations as well as Part II,
    Item 8.  Financial Statements and Supplementary
    Data  Note 7  Acquisitions and
    Divestitures.
 
    On December 31, 2010, we purchased the business of Energy
    Contractors LLC (Energy Contractors) for a total
    cash purchase price of $53.4 million. The assets were
    comprised of vehicles and rig equipment and are included in our
    U.S. Land Well-servicing operating segment. The purchase
    price was allocated to the net tangible and intangible assets
    acquired based on their preliminary fair value estimates as of
    December 31, 2010. The excess of the purchase price over
    the fair value of the assets acquired was recorded as goodwill
    in the amount of $5 million.
 
    From time to time, we may sell a subsidiary or group of assets
    outside of our core markets or business if it is economically
    advantageous for us to do so. During 2010, we began actively
    marketing our oil and gas assets in the Horn River basin in
    Canada and in the Llanos basin in Colombia. These assets include
    our 49.7% and 50.0% ownership interests in our investments of
    Remora and SMVP, respectively, which we account for using the
    equity method of accounting. All of these assets are included in
    our Oil and Gas operating segment. We determined that the plan
    of sale criteria in the ASC Topic relating to the Presentation
    of Financial Statements for Assets Sold or Held for Sale had
    been met during the third quarter of 2010. Accordingly, the
    accompanying consolidated statements of income (loss) and
    accompanying notes to the consolidated financial statements have
    been updated to retroactively reclassify the operating results
    of these assets as discontinued operations for all periods
    presented. See Note 21  Discontinued Operations
    for additional discussion in Part II,
    Item 8.  Financial Statements and Supplementary
    Data.
 
    Environmental
    Compliance
 
    Nabors does not currently anticipate that compliance with
    currently applicable environmental regulations and controls will
    significantly change its competitive position, capital spending
    or earnings during 2011. Nabors believes it is in material
    compliance with applicable environmental rules and regulations,
    and the cost of such compliance is not material to the business
    or financial condition of Nabors. For a more detailed
    description of the environmental laws and regulations applicable
    to Nabors operations, see Part I,
    Item 1A.  Risk Factors  Changes to
    or noncompliance with governmental regulation or exposure to
    environmental liabilities could adversely affect Nabors
    results of operations.
 
 
    In addition to the other information set forth elsewhere in this
    report, the following factors should be carefully considered
    when evaluating Nabors. The risks described below are not the
    only ones facing Nabors. Additional risks not presently known to
    us or that we currently deem immaterial may also impair our
    business operations.
 
    Our business, financial condition or results of operations could
    be materially adversely affected by any of these risks.
    
    11
 
    We
    have a substantial amount of debt outstanding
 
    As of December 31, 2010, we had long-term debt outstanding
    of approximately $4.4 billion, including $1.4 billion
    in current maturities, and cash and cash equivalents and
    investments of $841.5 million, including $40.3 million
    of long-term investments and other receivables. Long-term
    investments and other receivables include $32.9 million in
    oil and gas financing receivables. Our ability to service our
    debt obligations depends in large part upon the level of cash
    flows generated by our subsidiaries operations, possible
    dispositions of non-core assets, availability under our
    unsecured revolving credit facility and our ability to access
    the capital markets. At December 31, 2010, we had
    $700 million available under a senior unsecured revolving
    credit facility; in January 2011, we added another lender to the
    facility raising the amount available to $750 million. On
    February 11, 2011, one of our subsidiaries established a
    credit facility, which we unconditionally guarantee, for
    approximately US$50 million. If our 0.94% senior
    exchangeable notes were exchanged before their maturity in May
    2011, the required cash payment could have a significant impact
    on our level of cash and cash equivalents and investments
    available to meet our other cash obligations. We calculate our
    leverage in relation to capital (i.e., shareholders
    equity) utilizing two commonly used ratios:
 
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    Gross funded debt to capital, which is calculated by dividing
    (x) funded debt by (y) funded debt plus
    deferred tax liabilities (net of deferred tax assets)
    plus capital. Funded debt is the sum of
    (1) short-term borrowings, (2) the current portions of
    long-term debt and (3) long-term debt; and
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    Net funded debt to capital, which is calculated by dividing
    (x) net funded debt by (y) net funded debt plus
    deferred tax liabilities (net of deferred tax assets)
    plus capital. Net funded debt is funded debt minus
    the sum of cash and cash equivalents and short-term and
    long-term investments and other receivables.
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    At December 31, 2010, our gross funded debt to capital
    ratio was 0.42:1 and our net funded debt to capital ratio was
    0.37:1.
 
    Fluctuations
    in oil and natural gas prices could adversely affect drilling
    activity and our revenues, cash flows and
    profitability
 
    Our operations depend on the level of spending by oil and gas
    companies for exploration, development and production
    activities. Both short-term and long-term trends in oil and
    natural gas prices affect these levels. Oil and natural gas
    prices, as well as the level of drilling, exploration and
    production activity, can be highly volatile. Worldwide military,
    political and economic events, including initiatives by the
    Organization of Petroleum Exporting Countries, affect both the
    demand for, and the supply of, oil and natural gas. Weather
    conditions, governmental regulation (both in the United States
    and elsewhere), levels of consumer demand, the availability of
    pipeline capacity, and other factors beyond our control may also
    affect the supply of and demand for oil and natural gas. Recent
    volatility and the effects of recent declines in oil and natural
    gas prices are likely to continue in the near future, especially
    given the general contraction in the worlds economy that
    began during 2008. We believe that any prolonged suppression of
    oil and natural gas prices could continue to depress the level
    of exploration and production activity. Lower oil and natural
    gas prices have also caused some of our customers to seek to
    terminate, renegotiate or fail to honor our drilling contracts
    and affected the fair market value of our rig fleet, which in
    turn has resulted in impairments of our assets. A prolonged
    period of lower oil and natural gas prices could affect our
    ability to retain skilled rig personnel and affect our ability
    to access capital to finance and grow our business. There can be
    no assurances as to the future level of demand for our services
    or future conditions in the oil and natural gas and oilfield
    services industries.
 
    Uncertain
    or negative global economic conditions could continue to
    adversely affect our results of operations
 
    The recent and substantial volatility and extended declines in
    oil and natural gas prices in response to a weakened global
    economic environment has adversely affected our results of
    operations. In addition, economic conditions have resulted in
    substantial uncertainty in the capital markets and both access
    to and terms of available financing. During 2009, many of our
    customers curtailed their drilling programs, which, in many
    
    12
 
    cases, has resulted in a decrease in demand for drilling rigs
    and a reduction in dayrates and utilization. Additionally, some
    customers have terminated drilling contracts prior to the
    expiration of their terms. A prolonged period of lower oil and
    natural gas prices could continue to impact our industry and our
    business, including our future operating results and the ability
    to recover our assets, including goodwill, at their stated
    values. In addition, some of our customers could experience an
    inability to pay suppliers, including us, in the event they are
    unable to access the capital markets to fund their business
    operations. Likewise, our suppliers may be unable to sustain
    their current level of operations, fulfill their commitments
    and/or fund
    future operations and obligations. Each of these could adversely
    affect our operations.
 
    As a
    holding company, we depend on our subsidiaries to meet our
    financial obligations
 
    We are a holding company with no significant assets other than
    the stock of our subsidiaries. In order to meet our financial
    needs, we rely exclusively on repayments of interest and
    principal on intercompany loans that we have made to our
    operating subsidiaries and income from dividends and other cash
    flow from our subsidiaries. There can be no assurance that our
    operating subsidiaries will generate sufficient net income to
    pay us dividends or sufficient cash flow to make payments of
    interest and principal to us. In addition, from time to time,
    our operating subsidiaries may enter into financing arrangements
    that contractually restrict or prohibit these types of upstream
    payments. There can also be adverse tax consequences associated
    with paying dividends.
 
    Our
    access to borrowing capacity could be affected by the recent
    instability in the global financial markets
 
    Our ability to access capital markets or to otherwise obtain
    sufficient financing is enhanced by our senior unsecured debt
    ratings as provided by Fitch Ratings, Moodys Investor
    Service and Standard & Poors and our historical
    ability to access those markets as needed. A credit downgrade
    may impact our future ability to access credit markets, which is
    important for purposes of both meeting our financial obligations
    and funding capital requirements to finance and grow our
    businesses.
 
    We
    operate in a highly competitive industry with excess drilling
    capacity, which may adversely affect our results of
    operations
 
    The oilfield services industry is very competitive. Contract
    drilling companies compete primarily on a regional basis, and
    competition may vary significantly from region to region at any
    particular time. Many drilling, workover and well-servicing rigs
    can be moved from one region to another in response to changes
    in levels of activity and market conditions, which may result in
    an oversupply of rigs in an area. In many markets where we
    operate, the number of rigs available for use exceeds the demand
    for rigs, resulting in price competition. Most drilling and
    workover contracts are awarded on the basis of competitive bids,
    which also results in price competition. The land drilling
    market generally is more competitive than the offshore drilling
    market because there are larger numbers of rigs and competitors.
 
    The
    nature of our operations presents inherent risks of loss that
    could adversely affect our results of operations
 
    Our operations are subject to many hazards inherent in the
    drilling, workover and well-servicing and pressure pumping
    industries, including blowouts, cratering, explosions, fires,
    loss of well control, loss of or damage to the wellbore or
    underground reservoir, damaged or lost drilling equipment and
    damage or loss from inclement weather or natural disasters. Any
    of these hazards could result in personal injury or death,
    damage to or destruction of equipment and facilities, suspension
    of operations, environmental and natural resources damage and
    damage to the property of others. Our offshore operations are
    also subject to the hazards of marine operations including
    capsizing, grounding, collision, damage from hurricanes and
    heavy weather or sea conditions and unsound ocean bottom
    conditions. Our operations are also subject to risks of war,
    civil disturbances or other political events.
    
    13
 
    Accidents may occur, we may be unable to obtain desired
    contractual indemnities, and our insurance may prove inadequate
    in certain cases. The occurrence of an event not fully insured
    or indemnified against, or the failure or inability of a
    customer or insurer to meet its indemnification or insurance
    obligations, could result in substantial losses. In addition,
    insurance may not be available to cover any or all of these
    risks. Even if available, insurance may be inadequate or
    insurance premiums or other costs may rise significantly in the
    future making insurance prohibitively expensive. We expect to
    continue to face upward pressure in our insurance renewals; our
    premiums and deductibles may be higher, and some insurance
    coverage may either be unavailable or more expensive than it has
    been in the past. Moreover, our insurance coverage generally
    provides that we assume a portion of the risk in the form of a
    deductible or self-insured retention. We may choose to increase
    the levels of deductibles (and thus assume a greater degree of
    risk) from time to time in order to minimize our overall costs.
 
    Future
    price declines may result in a writedown of our oil and gas
    asset carrying values
 
    We follow the successful-efforts method of accounting for our
    consolidated subsidiaries oil and gas activities. Under
    the successful-efforts method, lease acquisition costs and all
    development costs are capitalized. Our provision for depletion
    is based on these capitalized costs and is determined on a
    property-by-property
    basis using the
    units-of-production
    method. Proved property acquisition costs are amortized over
    total proved reserves. Costs of wells and related equipment and
    facilities are amortized over the life of proved developed
    reserves. Proved oil and gas properties are reviewed when
    circumstances suggest the need for such a review and are written
    down to their estimated fair value, if required. Unproved
    properties are reviewed periodically to determine if there has
    been impairment of the carrying value; any impairment is
    expensed in that period. The estimated fair value of our proved
    reserves generally declines when there is a significant and
    sustained decline in oil and natural gas prices. During 2010,
    2009 and 2008, our impairment tests on the wholly owned oil and
    gas-related assets in our Oil and Gas operating segment resulted
    in impairment charges of $137.8 million, $48.6 million
    and $21.5 million, respectively. Any sustained further
    decline in oil and natural gas prices or reserve quantities
    could require further writedown of the value of our proved oil
    and gas properties if the estimated fair value of these
    properties falls below their net book value.
 
    Our unconsolidated oil and gas joint ventures, which we account
    for under the equity method of accounting, utilize the full-cost
    method of accounting for costs related to oil and natural gas
    properties. Under this method, all of these costs (for both
    productive and nonproductive properties) are capitalized and
    amortized on an aggregate basis over the estimated lives of the
    properties using the
    units-of-production
    method. However, these capitalized costs are subject to a
    ceiling test which limits the costs to the aggregate of
    (i) the present value of future net revenues attributable
    to proved oil and natural gas reserves, discounted at 10%, plus
    (ii) the lower of cost or market value of unproved
    properties. The full-cost ceiling was evaluated at
    December 31, 2010 and 2009 using the
    12-month
    average price, whereas during 2008, the full-cost ceiling was
    evaluated using year-end prices. During 2010, our unconsolidated
    oil and gas joint ventures did not record full-cost ceiling test
    writedowns. During 2009 and 2008, the ventures recorded
    full-cost ceiling test writedowns of which $237.1 million
    and $228.3 million, respectively, represented our
    proportionate share. Any sustained further decline in oil and
    natural gas prices, or other factors, without other mitigating
    circumstances, could cause other future writedowns of
    capitalized costs and asset impairments that could adversely
    affect our results of operations.
 
    Our
    acquisition of Superior may not be as financially or
    operationally successful as contemplated
 
    In evaluating the acquisition of Superior, we made certain
    business assumptions and determinations based on our due
    diligence. However, these assumptions and determinations involve
    risks and uncertainties that may cause them to be inaccurate. As
    a result, we may not realize the full benefits that we expect
    from the acquisition. For example, our assumptions as to future
    revenue with respect to expanding internationally and achieving
    synergies in North America by integrating Superiors
    pumping services with our drilling and workover offerings may
    prove to be incorrect. If they are, the financial success of the
    acquisition may be materially adversely affected.
    
    14
 
    The
    profitability of our operations could be adversely affected by
    war, civil disturbance, or political or economic turmoil,
    fluctuation in currency exchange rates and local import and
    export controls
 
    We derive a significant portion of our business from global
    markets, including major operations in Canada, South America,
    Mexico, the Caribbean, the Middle East, the Far East, Russia and
    Africa. These operations are subject to various risks, including
    the risk of war, civil disturbances and governmental activities
    that may limit or disrupt markets, restrict the movement of
    funds or result in the deprivation of contract rights or the
    taking of property without fair compensation. In some countries,
    our operations may be subject to the additional risk of
    fluctuating currency values and exchange controls, such as last
    years currency devaluation in Venezuela. We are subject to
    various laws and regulations that govern the operation and
    taxation of our business and the import and export of our
    equipment from country to country, the imposition, application
    and interpretation of which can prove to be uncertain.
 
    The
    loss of key executives could reduce our competitiveness and
    prospects for future success
 
    The successful execution of our strategies central to our future
    success will depend, in part, on a few of our key executive
    officers. We have entered into employment agreements with our
    Chairman and Chief Executive Officer, Eugene M. Isenberg and our
    Deputy Chairman, President and Chief Operating Officer, Anthony
    G. Petrello, with terms through March 30, 2013. If
    Mr. Isenbergs employment is terminated in the event
    of death or disability, or without cause or in the event of a
    change in control, a cash payment of $100 million will be
    made by the Company. If Mr. Petrellos employment is
    terminated in the event of death or disability, the Company will
    make a cash payment of $50 million; or in the event of
    termination without cause or in the event of a change in
    control, the Company will make a cash payment based on a formula
    of three times the average of his base salary and annual bonus
    paid during the three fiscal years preceding the termination. We
    do not carry significant amounts of key man insurance. The loss
    of Mr. Isenberg or Mr. Petrello could have an adverse
    effect on our financial condition or results of operations.
 
    Changes
    to or noncompliance with governmental regulation or exposure to
    environmental liabilities could adversely affect our results of
    operations
 
    The drilling of oil and gas wells is subject to various federal,
    state and local laws, rules and regulations. Our cost of
    compliance with these laws, rules and regulations may be
    substantial. For example, federal law imposes on
    responsible parties a variety of regulations related
    to the prevention of oil spills, and liability for removal costs
    and natural resource, real or personal property and certain
    economic damages arising from such spills. Some of these laws
    may impose strict liability for these costs and damages without
    regard to the conduct of the parties. As an owner and operator
    of onshore and offshore rigs and transportation equipment, we
    may be deemed to be a responsible party under federal law. In
    addition, our well-servicing, workover and production services
    operations routinely involve the handling of significant amounts
    of materials, some of which are classified as solid or hazardous
    wastes or hazardous substances. Various state and federal laws
    govern the containment and disposal of hazardous substances,
    oilfield waste and other waste materials, the use of underground
    storage tanks and the use of underground injection wells. We
    employ personnel responsible for monitoring environmental
    compliance and arranging for remedial actions that may be
    required from time to time and also use consultants to advise on
    and assist with our environmental compliance efforts.
    Liabilities are recorded when the need for environmental
    assessments
    and/or
    remedial efforts become known or probable and the cost can be
    reasonably estimated.
 
    The scope of laws protecting the environment has expanded,
    particularly outside the United States, and this trend is
    expected to continue. The violation of environmental laws and
    regulations can lead to the imposition of administrative, civil
    or criminal penalties, remedial obligations, and in some cases
    injunctive relief. Violations may also result in liabilities for
    personal injuries, property and natural resource damage and
    other costs and claims. We are not always successful in
    allocating all risks of these environmental liabilities to
    customers, and it is possible that customers who assume the
    risks will be financially unable to bear any resulting costs.
    
    15
 
    Under the Comprehensive Environmental Response, Compensation and
    Liability Act, as amended, also known as CERCLA or Superfund,
    and similar state laws and regulations, liability for release of
    a hazardous substance into the environment can be imposed
    jointly on the entire group of responsible parties or separately
    on any one of the responsible parties, without regard to fault
    or the legality of the original conduct of any party that
    contributed to the release. Liability under CERCLA may include
    costs of cleaning up the hazardous substances that have been
    released into the environment and damages to natural resources.
 
    Changes in environmental laws and regulations may also
    negatively impact the operations of oil and natural gas
    exploration and production companies, which in turn could have
    an adverse effect on us. For example, legislation has been
    proposed from time to time in the U.S. Congress that would
    reclassify some oil and natural gas production wastes as
    hazardous wastes under the Resources Conservation and Recovery
    Act, which would make the reclassified wastes subject to more
    stringent handling, disposal and
    clean-up
    requirements. Legislators and regulators in the United States
    and other jurisdictions where we operate also focus increasingly
    on restricting the emission of carbon dioxide, methane and other
    greenhouse gases that may contribute to warming of the
    Earths atmosphere, and other climatic changes. The
    U.S. Congress has considered legislation designed to reduce
    emission of greenhouse gases, and some states in which we
    operate have passed legislation or adopted initiatives, such as
    the Regional Greenhouse Gas Initiative in the northeastern
    United States and the Western Regional Climate Action
    Initiative, which establish greenhouse gas inventories
    and/or
    cap-and-trade
    programs. Some international initiatives have also been adopted,
    such as the United Nations Framework Convention on Climate
    Changes Kyoto Protocol, to which the United
    States is not a party. In addition, the U.S. Environmental
    Protection Agency (EPA) has published findings that
    emissions of greenhouses gases present an endangerment to public
    health and the environment, paving the way for regulations that
    would restrict emissions of greenhouse gases under existing
    provisions of the Clean Air Act.
 
    In October 2009, the EPA enacted rules requiring the reporting
    of greenhouse gas emissions from large sources and suppliers in
    the United States. Although we do not believe these rules
    currently apply to us, the EPA has proposed expanding the rules
    to include onshore oil and natural gas production, processing,
    transmission, storage, and distribution facilities beginning in
    2012 for emissions occurring in 2011. The enactment of such
    hazardous waste legislation or future or more stringent
    regulation of greenhouse gases could dramatically increase
    operating costs for oil and natural gas companies and could
    reduce the market for our services by making many wells
    and/or
    oilfields uneconomical to operate.
 
    The U.S. Oil Pollution Act of 1990, as amended, imposes
    strict liability on responsible parties for removal costs and
    damages resulting from discharges of oil into U.S. waters.
    In addition, the Outer Continental Shelf Lands Act provides the
    federal government with broad discretion in regulating the
    leasing of offshore oil and gas production sites.
 
    Increased
    regulation of hydraulic fracturing could result in reductions or
    delays in drilling and completing new oil and natural gas wells,
    which could adversely impact the demand for fracturing and other
    services
 
    Superior performs hydraulic fracturing, a process sometimes used
    in the completion of oil and gas wells whereby water, sand and
    chemicals are injected under pressure into subsurface formations
    to stimulate gas and, to a lesser extent, oil production. In
    March 2010, the EPA announced that it would study the potential
    adverse impact that fracturing may have on water quality and
    public health. Legislation has also been introduced in the
    U.S. Congress and some states that would require the
    disclosure of chemicals used in the fracturing process. If
    enacted, the legislation could require fracturing activities to
    meet permitting and financial assurance requirements, adhere to
    certain construction specifications, fulfill monitoring,
    reporting and recordkeeping requirements and meet plugging and
    abandonment requirements. Any new laws regulating fracturing
    activities could cause operational delays or increased costs in
    exploration and production, which could adversely affect the
    demand for fracturing services.
    
    16
 
    Because
    our option, warrant and convertible securities holders have a
    considerable number of common shares available for issuance and
    resale, significant issuances or resales in the future could
    adversely affect the market price of our common
    shares
 
    As of February 24, 2011, we had 800,000,000 authorized
    common shares, of which 315,558,810 shares were
    outstanding. In addition, 46,780,820 common shares were reserved
    for issuance pursuant to option and employee benefit plans, and
    39,814,194 shares were reserved for issuance upon
    conversion or repurchase of outstanding senior exchangeable
    notes. The sale, or availability for sale, of substantial
    amounts of our common shares in the public market, whether
    directly by us or resulting from the exercise of warrants or
    options (and, where applicable, sales pursuant to Rule 144
    under the Securities Act) or the conversion into common shares,
    or repurchase of debentures and notes using common shares, would
    be dilutive to existing security holders, could adversely affect
    the prevailing market price of our common shares and could
    impair our ability to raise additional capital through the sale
    of equity securities.
 
    Provisions
    in our organizational documents and executive contracts may
    deter a change of control transaction and decrease the
    likelihood of a shareholder receiving a change of control
    premium
 
    Our Board of Directors is divided into three classes, with each
    class serving a staggered three-year term. In addition, the
    Board of Directors has the authority to issue a significant
    number of common shares and up to 25,000,000 preferred shares,
    as well as to determine the price, rights (including voting
    rights), conversion ratios, preferences and privileges of the
    preferred shares, in each case without any vote or action by the
    holders of our common shares. Although we have no current plans
    to issue preferred shares, our classified Board, as well as its
    ability to issue preferred shares, may discourage, delay or
    prevent changes in control of Nabors that are not supported by
    the Board, thereby preventing some of our shareholders from
    realizing a premium on their shares. In addition, the
    requirement in the indenture for our 0.94% senior
    exchangeable notes due 2011 to pay a make-whole premium in the
    form of an increase in the exchange rate in certain
    circumstances could have the effect of making a change in
    control of Nabors more expensive.
 
    We have employment agreements with our Chairman and Chief
    Executive Officer, Eugene M. Isenberg, and our Deputy Chairman,
    President and Chief Operating Officer, Anthony G. Petrello.
    These agreements have
    change-in-control
    provisions that could result in significant cash payments to
    Messrs. Isenberg and Petrello.
 
    We may
    have additional tax liabilities
 
    We are subject to income taxes in the United States and numerous
    other jurisdictions. Significant judgment is required in
    determining our worldwide provision for income taxes. In the
    ordinary course of our business, there are many transactions and
    calculations where the ultimate tax determination is uncertain.
    We are regularly audited by tax authorities. Although we believe
    our tax estimates are reasonable, the final determination of tax
    audits and any related litigation could be materially different
    than what is reflected in income tax provisions and accruals. An
    audit or litigation could materially affect our financial
    position, income tax provision, net income, or cash flows in the
    period or periods challenged. It is also possible that future
    changes to tax laws (including tax treaties) could impact our
    ability to realize the tax savings recorded to date.
 
    On September 14, 2006, Nabors Drilling International
    Limited, one of our wholly owned Bermuda subsidiaries
    (NDIL), received a Notice of Assessment (the
    Notice) from Mexicos federal tax authorities
    in connection with the audit of NDILs Mexico branch for
    2003. The Notice proposes to deny depreciation expense
    deductions relating to drilling rigs operating in Mexico in
    2003. The Notice also proposes to deny a deduction for payments
    made to an affiliated company for the procurement of labor
    services in Mexico. The amount assessed was approximately
    $19.8 million (including interest and penalties). Nabors
    and its tax advisors previously concluded that the deductions
    were appropriate and more recently that the governments
    position lacks merit. NDILs Mexico branch took similar
    deductions for depreciation and labor expenses from 2004 to
    2008. On June 30, 2009, the government proposed similar
    assessments against the Mexico branch of another wholly owned
    Bermuda subsidiary, Nabors Drilling International II Ltd.
    (NDIL II) for 2006. We anticipate that a similar
    assessment will eventually be proposed against NDIL for 2004
    through 2008 and against NDIL II for 2007 to 2010. We believe
    that the potential assessments will range from $6 million
    to
    
    17
 
    $26 million per year for the period from 2004 to 2009, and
    in the aggregate, would be approximately $90 million to
    $95 million. Although we believe that any assessments
    related to the 2004 to 2010 years lack merit, a reserve has
    been recorded in accordance with accounting principles generally
    accepted in the United States of America (GAAP). The
    statute of limitations for NDILs 2004 tax year recently
    expired. Accordingly, during the fourth quarter of 2010, we
    released $7.4 million from our tax reserves, which
    represented the reserve recorded for that tax year. If these
    additional assessments were to be made and we ultimately did not
    prevail, we would be required to recognize additional tax for
    the amount in excess of the current reserve.
 
    Proposed
    tax legislation could mitigate or eliminate the benefits of our
    2002 reorganization as a Bermuda company
 
    Various bills have been introduced in the U.S. Congress
    that could reduce or eliminate the tax benefits associated with
    our reorganization as a Bermuda company. Legislation enacted by
    the U.S. Congress in 2004 provides that a corporation that
    reorganized in a foreign jurisdiction on or after March 4,
    2003 be treated as a domestic corporation for U.S. federal
    income tax purposes. Nabors reorganization was completed
    on June 24, 2002. There have been and we expect that there
    may continue to be legislation proposed by the
    U.S. Congress from time to time which, if enacted, could
    limit or eliminate the tax benefits associated with our
    reorganization.
 
    Because we cannot predict whether legislation will ultimately be
    adopted, no assurance can be given that the tax benefits
    associated with our reorganization will ultimately accrue to the
    benefit of the Company and its shareholders. It is possible that
    future changes to the tax laws (including tax treaties) could
    impact our ability to realize the tax savings recorded to date,
    as well as future tax savings, resulting from our reorganization.
 
    Legal
    proceedings could affect our financial condition and results of
    operations
 
    We are subject to legal proceedings and governmental
    investigations from time to time that include employment, tort,
    intellectual property and other claims, and purported class
    action and shareholder derivative actions. We are also subject
    to complaints and allegations from former, current or
    prospective employees from time to time, alleging violations of
    employment-related laws. Lawsuits or claims could result in
    decisions against us that could have an adverse effect on our
    financial condition or results of operations.
 
    Our
    financial results could be affected by changes in the value of
    our investment portfolio
 
    We invest our excess cash in a variety of investment vehicles,
    some of which are subject to market fluctuations resulting from
    a variety of economic factors or factors associated with a
    particular investment, including without limitation, overall
    declines in the equity markets, currency and interest rate
    fluctuations, volatility in the credit markets, exposures
    related to concentrations of investments in a particular fund or
    investment, exposures related to hedges of financial positions,
    and the performance of a particular fund or investment managers.
    As a result, events or developments that negatively affect the
    value of our investments could have an adverse effect on our
    results of operations.
 
    We do
    not currently intend to pay dividends on our common
    shares
 
    We have not paid any cash dividends on our common shares since
    1982 and have no current intention to do so. However, we can
    give no assurance that we will not reevaluate our position on
    dividends in the future.
 
     | 
     | 
    | 
    ITEM 1B.  
 | 
    
    UNRESOLVED
    STAFF COMMENTS
 | 
 
    Not applicable.
    
    18
 
 
    Nabors principal executive offices are located in
    Hamilton, Bermuda. We own or lease executive and administrative
    office space in Houston, Texas and other areas across the world.
 
    Many of the international drilling rigs and some of the Alaska
    rigs in our fleet are supported by mobile camps which house the
    drilling crews and a significant inventory of spare parts and
    supplies. In addition, we own various trucks, forklifts, cranes,
    earth-moving and other construction and transportation
    equipment, including various helicopters, fixed-wing aircraft
    and heliportable well-service equipment, which are used to
    support drilling and logistics operations. We also own or lease
    a number of facilities and storage yards used in support of
    operations in each of our geographic markets.
 
    Nabors and its subsidiaries own certain mineral interests in
    connection with their investing and operating activities. The
    operations of our Oil and Gas operating segment focus on the
    exploration for and the acquisition, development and production
    of natural gas, oil and natural gas liquids in the United
    States, the Canada provinces of Alberta and British Columbia,
    and Colombia.
 
    Our Oil and Gas operating segment includes our wholly owned oil
    and gas assets and our unconsolidated oil and gas joint
    ventures. In December 2008, the SEC revised oil and gas
    reporting disclosures, which clarified that we should consider
    our equity-method investments when determining whether we have
    significant oil and gas activities beginning in 2009. A one-year
    deferral of the disclosure requirements was allowed if an entity
    became subject to the requirements because of the change to the
    definition of significant oil and gas activities. When operating
    results from our wholly owned oil and gas activities were
    considered with operating results from our unconsolidated oil
    and gas joint ventures, which we account for under the equity
    method of accounting, we determined that we had significant oil
    and gas activities under the new definition. Accordingly, we are
    presenting the information with regard to our oil and gas
    producing activities as of and for the year ended
    December 31, 2010.
 
    The estimates of net proved oil and gas reserves are based on
    reserve reports as of December 31, 2010, which were
    prepared by independent petroleum engineers. AJM Petroleum
    Consultants prepared reports of estimated proved oil and gas
    reserves for our wholly owned assets in Canada. Miller and
    Lents, Ltd. prepared reports of estimated proved oil and gas
    reserves for both our wholly owned assets and our U.S. joint
    ventures interests in natural gas and oil properties
    located in the United States. Netherland, Sewell &
    Associates, Inc. prepared reports of estimated proved oil
    reserves for certain oil properties located in Cat Canyon and
    West Cat Canyon Fields, Santa Barbara County, California.
    Lonquist & Co., LLC prepared reports of estimated
    proved oil and gas reserves for our wholly owned assets in
    Colombia.
 
    Summary
    of Oil and Gas Reserves
 
    The table below summarizes the proved reserves in each
    geographic area and by product type for our wholly owned
    subsidiaries and our proportionate interests in our equity
    companies. We report proved reserves on the basis of the average
    of the
    first-day-of-the-month
    price for each month during the last
    12-month
    period. Estimates of volumes of proved reserves of natural gas
    at year end are expressed in billions of cubic feet
    (Bcf) at a pressure base of 14.73 pounds per square
    inch for natural gas and in millions of barrels
    (MMBbls) for oil and natural gas liquids.
 
    For our wholly owned properties in the United States, the prices
    used in our reserve reports were $3.72 per mcf for the
    12-month
    average of natural gas, $36.43 per barrel for natural gas
    liquids and $61.12 per barrel for oil at December 31, 2010.
    The prices used in the reserve reports by our unconsolidated
    U.S. joint venture were $4.53 per mcf for the
    12-month
    average of natural gas, $39.04 per barrel for natural gas
    liquids and $70.60 per barrel for oil at December 31, 2010.
    For our wholly owned properties in Canada, the price used in our
    reserve reports was $2.81 per mcf for the
    12-month
    average of natural gas at December 31, 2010. The
    12-month
    average price for natural gas used in the reserve report by our
    unconsolidated Canada joint venture was $2.78 per mcf at
    December 31, 2010. For our wholly owned properties in
    Colombia, the price used in our reserve reports was $78.21 per
    barrel for oil at December 31, 2010. The oil price used in
    the reserve report by our unconsolidated Colombia joint venture
    was $76.00 per barrel at December 31, 2010.
    
    19
 
    No major discovery or other favorable or adverse event has
    occurred since December 31, 2010, that would cause a
    significant change in the estimated proved reserves as of that
    date.
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Reserves
 | 
 
 | 
| 
 
 | 
 
 | 
    Liquids 
    
 | 
 
 | 
 
 | 
    Natural Gas 
    
 | 
 
 | 
| 
    Reserve Category
 | 
 
 | 
    (MMBbls)
 | 
 
 | 
 
 | 
    (Bcf)
 | 
 
 | 
|  
 | 
| 
 
    Proved
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Developed
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Consolidated Subsidiaries
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    United States
 
 | 
 
 | 
 
 | 
    2.7
 | 
    (2)
 | 
 
 | 
 
 | 
    17.1
 | 
 
 | 
| 
 
    Canada
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    5.6
 | 
 
 | 
| 
 
    Colombia
 
 | 
 
 | 
 
 | 
    1.6
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total Consolidated
 
 | 
 
 | 
 
 | 
    4.3
 | 
 
 | 
 
 | 
 
 | 
    22.7
 | 
 
 | 
| 
 
    Equity Companies (1)
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    United States
 
 | 
 
 | 
 
 | 
    3.0
 | 
 
 | 
 
 | 
 
 | 
    147.1
 | 
 
 | 
| 
 
    Canada
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    5.1
 | 
 
 | 
| 
 
    Colombia
 
 | 
 
 | 
 
 | 
    0.5
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total Equity Companies
 
 | 
 
 | 
 
 | 
    3.5
 | 
 
 | 
 
 | 
 
 | 
    152.2
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total Developed
 
 | 
 
 | 
 
 | 
    7.8
 | 
 
 | 
 
 | 
 
 | 
    174.9
 | 
 
 | 
| 
 
    Undeveloped
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Consolidated Subsidiaries
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    United States
 
 | 
 
 | 
 
 | 
    18.5
 | 
 
 | 
 
 | 
 
 | 
    2.7
 | 
 
 | 
| 
 
    Canada
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Colombia
 
 | 
 
 | 
 
 | 
    .4
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total Consolidated
 
 | 
 
 | 
 
 | 
    18.9
 | 
 
 | 
 
 | 
 
 | 
    2.7
 | 
 
 | 
| 
 
    Equity Companies (1)
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    United States
 
 | 
 
 | 
 
 | 
    4.9
 | 
 
 | 
 
 | 
 
 | 
    405.7
 | 
 
 | 
| 
 
    Canada
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Colombia
 
 | 
 
 | 
 
 | 
    1.3
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total Equity Companies
 
 | 
 
 | 
 
 | 
    6.2
 | 
 
 | 
 
 | 
 
 | 
    405.7
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total Proved
 
 | 
 
 | 
 
 | 
    25.1
 | 
 
 | 
 
 | 
 
 | 
    408.4
 | 
 
 | 
 
 
     | 
     | 
     | 
    | 
    (1)  | 
     | 
    
    Represents our proportionate interests in our equity companies. | 
|   | 
    | 
    (2)  | 
     | 
    
    During 2010, we purchased a 25% working interest in the Cat
    Canyon and West Cat Canyon fields in Santa Barbara County
    California for $25 million. At December 31, 2010,
    proved reserves in Cat Canyon were estimated at
    20.8 MMBbls. Workovers on approximately 273 productive
    wells began in late 2010, and 22 wells were producing as of
    December 31, 2010. The price used in our reserve report was
    $65.641 per barrel for oil at December 31, 2010. | 
 
    In the preceding reserve information, consolidated subsidiary
    and our proportionate interests in our equity company reserves
    are reported separately. However, we operate our business with
    the same view of equity company reserves as for reserves from
    consolidated subsidiaries.
 
    The estimation of proved reserves, which is based on the
    requirement of reasonable certainty, is an ongoing process based
    on rigorous technical evaluations, commercial and market
    assessments and detailed analysis of well information such as
    flow rates and reservoir pressure declines. Furthermore, we
    record proved reserves only for projects that have received
    significant funding commitments by management made toward the
    development of the reserves. Although we are reasonably certain
    that proved reserves will be produced, the timing and amount
    recovered can be affected by a number of factors including
    completion of development
    
    20
 
    projects, reservoir performance, regulatory approvals and
    significant changes in projections of long-term oil and natural
    gas price levels.
 
    Technologies
    Used in Establishing Proved Reserves Additions in
    2010
 
    Proved reserves were based on estimates generated through the
    integration of available and appropriate data, utilizing well
    established technologies that have been demonstrated in the
    field to yield repeatable and consistent results.
 
    Data used in these integrated assessments included information
    obtained directly from the subsurface via wellbores, such as
    well logs, reservoir core samples, fluid samples, static and
    dynamic pressure information, production test data, and
    surveillance and performance information. The data utilized also
    included subsurface information obtained through indirect
    measurements including high-quality
    2-D and
    3-D seismic
    data, calibrated with available well control. Where applicable,
    surface geological information was also utilized. The tools used
    to interpret the data included proprietary seismic processing
    software, proprietary reservoir modeling and simulation software
    and commercially available data analysis packages.
 
    In some circumstances, where appropriate analog reservoirs were
    available, reservoir parameters from these analogs were used to
    increase the quality of and confidence in the reserves estimates.
 
    Internal
    Controls over Proved Reserves
 
    Our Oil and Gas operating segment is managed by and staffed with
    individuals who have an average of more than 20 years of
    technical experience in the petroleum industry. We maintain
    computerized records of our reserve estimates and production
    data. Appropriate controls, including limitations on access and
    updating capabilities, are in place to ensure data integrity. We
    engage qualified third-party reservoir engineers and perform
    reviews to ensure reserve estimations include all properties
    owned and are based on correct working and net revenue
    interests. Key components of the reserve estimation process
    include technical evaluations and analysis of well and field
    performance and a rigorous peer review. No changes may be made
    to reserve estimates unless these changes have been thoroughly
    reviewed and evaluated by authorized personnel at Nabors. After
    all changes are made, senior management reviews the estimates
    for final endorsement.
 
    Proved
    Undeveloped Reserves
 
    At December 31, 2010, approximately 559 billion cubic feet
    equivalent (Bcfe) of our proved reserves were
    classified as proved undeveloped, which represented 71.6% of the
    780.7 Bcfe reported in proved reserves. This amount is inclusive
    of both consolidated subsidiaries and equity company reserves.
    Progress was made in converting proved undeveloped reserves into
    proved developed reserves in 2010. During 2010, we completed
    development work in over 12 fields and participated in numerous
    major project
    start-ups
    that resulted in the transfer of approximately 62 Bcfe from
    proved undeveloped to proved developed reserves. We estimate
    that 35% of our current proved undeveloped reserves will be
    developed by year 2012 and all of our current proved undeveloped
    reserves will be developed by year 2016.
    
    21
 
    Oil and
    Gas Production, Production Prices and Production Costs
 
    Oil
    and Gas Production
 
    The table below summarizes production by final product sold,
    average production sales price and average production cost, each
    by geographic area for the year ended December 31, 2010.
    Production costs are costs to operate and maintain our wells and
    related equipment and include the cost of labor, well-service
    and repair, location maintenance, power and fuel,
    transportation, cost of product, property taxes and
    production-related general and administrative costs.
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    United States
 | 
 
 | 
 
 | 
    Canada
 | 
 
 | 
 
 | 
    Colombia
 | 
 
 | 
 
 | 
    Total
 | 
 
 | 
| 
 
 | 
 
 | 
    Liquids 
    
 | 
 
 | 
 
 | 
    Natural Gas 
    
 | 
 
 | 
 
 | 
    Liquids 
    
 | 
 
 | 
 
 | 
    Natural Gas 
    
 | 
 
 | 
 
 | 
    Liquids 
    
 | 
 
 | 
 
 | 
    Natural Gas 
    
 | 
 
 | 
 
 | 
    Liquids 
    
 | 
 
 | 
 
 | 
    Natural Gas 
    
 | 
 
 | 
| 
 
 | 
 
 | 
    (MMBbls)
 | 
 
 | 
 
 | 
    (Bcf)
 | 
 
 | 
 
 | 
    (MMBbls)
 | 
 
 | 
 
 | 
    (Bcf)
 | 
 
 | 
 
 | 
    (MMBbls)
 | 
 
 | 
 
 | 
    (Bcf)
 | 
 
 | 
 
 | 
    (MMBbls)
 | 
 
 | 
 
 | 
    (Bcf)
 | 
 
 | 
|  
 | 
| 
 
    Oil and natural gas liquids production
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Consolidated Subsidiaries
 
 | 
 
 | 
 
 | 
    .073
 | 
 
 | 
 
 | 
 
 | 
    3.533
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    3.058
 | 
 
 | 
 
 | 
 
 | 
    .230
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    .303
 | 
 
 | 
 
 | 
 
 | 
    6.591
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Equity Companies(1)
 
 | 
 
 | 
 
 | 
    .249
 | 
 
 | 
 
 | 
 
 | 
    12.338
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    1.535
 | 
 
 | 
 
 | 
 
 | 
    .273
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    .522
 | 
 
 | 
 
 | 
 
 | 
    13.873
 | 
 
 | 
| 
 
    Average production sales prices:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Consolidated Subsidiaries
 
 | 
 
 | 
    $
 | 
    63.77
 | 
 
 | 
 
 | 
    $
 | 
    4.19
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    3.69
 | 
 
 | 
 
 | 
    $
 | 
    72.25
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    70.19
 | 
 
 | 
 
 | 
    $
 | 
    2.71
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Equity Companies(1)
 
 | 
 
 | 
    $
 | 
    74.86
 | 
 
 | 
 
 | 
    $
 | 
    4.43
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    3.93
 | 
 
 | 
 
 | 
    $
 | 
    73.90
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    58.59
 | 
 
 | 
 
 | 
    $
 | 
    4.11
 | 
 
 | 
| 
 
    Average production costs:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Consolidated Subsidiaries
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    $
 | 
    2.14/mcfe
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    $
 | 
    2.60/mcfe
 | 
 
 | 
 
 | 
    $
 | 
    34.42/boe
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Equity Companies(1)
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    $
 | 
    1.33/mcfe
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    $
 | 
    5.89/mcfe
 | 
 
 | 
 
 | 
    $
 | 
    33.60/boe
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 
     | 
     | 
     | 
    | 
    (1)  | 
     | 
    
    Represents our proportionate interests in our equity companies. | 
 
    Drilling
    and Other Exploratory and Development Activities
 
    During 2010, our drilling program focused on proven and emerging
    oil and natural gas basins in the United States. Our drilling
    program includes development activities with properties located
    in Canada and Colombia that are being actively marketed. The
    following tables provide the number of oil and gas wells
    completed during 2010.
 
    Number
    of Net Productive and Dry Wells Drilled
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    For the Year Ended December 31, 2010
 | 
 
 | 
| 
 
 | 
 
 | 
    Net Productive and 
    
 | 
 
 | 
 
 | 
    Net Dry Exploratory 
    
 | 
 
 | 
| 
 
 | 
 
 | 
    Dry Wells Drilled
 | 
 
 | 
 
 | 
    Wells Drilled
 | 
 
 | 
|  
 | 
| 
 
    Consolidated Subsidiaries
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    United States
 
 | 
 
 | 
 
 | 
    1.9
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Canada
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Colombia
 
 | 
 
 | 
 
 | 
    4.2
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total Consolidated
 
 | 
 
 | 
 
 | 
    6.1
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Equity Companies (1)
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    United States
 
 | 
 
 | 
 
 | 
    0.9
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Canada
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Colombia
 
 | 
 
 | 
 
 | 
    3.3
 | 
 
 | 
 
 | 
 
 | 
    2.1
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total Equity Companies
 
 | 
 
 | 
 
 | 
    4.2
 | 
 
 | 
 
 | 
 
 | 
    2.1
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 
     | 
     | 
     | 
    | 
    (1)  | 
     | 
    
    Represents our proportionate interests in our equity companies. | 
    
    22
 
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    For the Year Ended December 31, 2010
 | 
 
 | 
| 
 
 | 
 
 | 
    Net Productive 
    
 | 
 
 | 
 
 | 
    Net Dry 
    
 | 
 
 | 
| 
 
 | 
 
 | 
    Development Wells 
    
 | 
 
 | 
 
 | 
    Development 
    
 | 
 
 | 
| 
 
 | 
 
 | 
    Drilled
 | 
 
 | 
 
 | 
    Wells Drilled
 | 
 
 | 
|  
 | 
| 
 
    Consolidated Subsidiaries
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    United States
 
 | 
 
 | 
 
 | 
    1.2
 | 
 
 | 
 
 | 
 
 | 
    0.1
 | 
 
 | 
| 
 
    Canada
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Colombia
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total Consolidated
 
 | 
 
 | 
 
 | 
    1.2
 | 
 
 | 
 
 | 
 
 | 
    0.1
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Equity Companies (1)
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    United States
 
 | 
 
 | 
 
 | 
    9.5
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Canada
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Colombia
 
 | 
 
 | 
 
 | 
    1.6
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total Equity Companies
 
 | 
 
 | 
 
 | 
    11.1
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 
     | 
     | 
     | 
    | 
    (1)  | 
     | 
    
    Represents our proportionate interests in our equity companies. | 
 
    Present
    Activities
 
    The following table provides the number of wells in the process
    of drilling as of December 31, 2010.
 
    Wells
    Drilling
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    United States
 | 
 
 | 
    Canada
 | 
 
 | 
    Colombia
 | 
 
 | 
    Total
 | 
| 
 
 | 
 
 | 
    Gross
 | 
 
 | 
    Net
 | 
 
 | 
    Gross
 | 
 
 | 
    Net
 | 
 
 | 
    Gross
 | 
 
 | 
    Net
 | 
 
 | 
    Gross
 | 
 
 | 
    Net
 | 
|  
 | 
| 
 
    Consolidated Subsidiaries
 
 | 
 
 | 
 
 | 
    17.0
 | 
 
 | 
 
 | 
 
 | 
    0.9
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    17.0
 | 
 
 | 
 
 | 
 
 | 
    0.9
 | 
 
 | 
| 
 
    Equity Companies(1)
 
 | 
 
 | 
 
 | 
    2.5
 | 
 
 | 
 
 | 
 
 | 
    2.5
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    2.5
 | 
 
 | 
 
 | 
 
 | 
    2.5
 | 
 
 | 
 
 
     | 
     | 
     | 
    | 
    (1)  | 
     | 
    
    Represents our proportionate interests in our equity companies. | 
 
    Oil and
    Gas Properties, Wells, Operations and Acreage
 
    Gross
    and Net Productive Wells
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    For the Year Ended 
    
 | 
 
 | 
| 
 
 | 
 
 | 
    December 31, 2010
 | 
 
 | 
| 
 
 | 
 
 | 
    Gross
 | 
 
 | 
 
 | 
    Net
 | 
 
 | 
|  
 | 
| 
 
    Consolidated Subsidiaries
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    United States
 
 | 
 
 | 
 
 | 
    746.0
 | 
 
 | 
 
 | 
 
 | 
    139.6
 | 
 
 | 
| 
 
    Canada
 
 | 
 
 | 
 
 | 
    2.0
 | 
 
 | 
 
 | 
 
 | 
    2.0
 | 
 
 | 
| 
 
    Colombia
 
 | 
 
 | 
 
 | 
    7.0
 | 
 
 | 
 
 | 
 
 | 
    4.9
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total Consolidated
 
 | 
 
 | 
 
 | 
    755.0
 | 
 
 | 
 
 | 
 
 | 
    146.5
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Equity Companies(1)
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    United States
 
 | 
 
 | 
 
 | 
    337.8
 | 
 
 | 
 
 | 
 
 | 
    225.4
 | 
 
 | 
| 
 
    Canada
 
 | 
 
 | 
 
 | 
    3.0
 | 
 
 | 
 
 | 
 
 | 
    3.0
 | 
 
 | 
| 
 
    Colombia
 
 | 
 
 | 
 
 | 
    7.0
 | 
 
 | 
 
 | 
 
 | 
    3.9
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total Equity Companies
 
 | 
 
 | 
 
 | 
    347.8
 | 
 
 | 
 
 | 
 
 | 
    232.3
 | 
 
 | 
 
 
     | 
     | 
     | 
    | 
    (1)  | 
     | 
    
    Represents our proportionate interests in our equity companies. | 
    
    23
 
 
    Gross
    and Net Developed Acreage
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    December 31, 2010
 | 
| 
 
 | 
 
 | 
    United States
 | 
 
 | 
    Canada
 | 
 
 | 
    Colombia
 | 
 
 | 
    Total
 | 
| 
 
 | 
 
 | 
    Gross
 | 
 
 | 
    Net
 | 
 
 | 
    Gross
 | 
 
 | 
    Net
 | 
 
 | 
    Gross
 | 
 
 | 
    Net
 | 
 
 | 
    Gross
 | 
 
 | 
    Net
 | 
|  
 | 
| 
 
    Consolidated Subsidiaries
 
 | 
 
 | 
 
 | 
    157,965
 | 
 
 | 
 
 | 
 
 | 
    31,879
 | 
 
 | 
 
 | 
 
 | 
    1,309
 | 
 
 | 
 
 | 
 
 | 
    715
 | 
 
 | 
 
 | 
 
 | 
    883
 | 
 
 | 
 
 | 
 
 | 
    618
 | 
 
 | 
 
 | 
 
 | 
    160,157
 | 
 
 | 
 
 | 
 
 | 
    33,212
 | 
 
 | 
| 
 
    Equity Companies(1)
 
 | 
 
 | 
 
 | 
    211,638
 | 
 
 | 
 
 | 
 
 | 
    112,227
 | 
 
 | 
 
 | 
 
 | 
    9,801
 | 
 
 | 
 
 | 
 
 | 
    8,134
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    221,439
 | 
 
 | 
 
 | 
 
 | 
    120,361
 | 
 
 | 
 
 
     | 
     | 
     | 
    | 
    (1)  | 
     | 
    
    Represents our proportionate interests in our equity companies. | 
 
    Gross
    and Net Undeveloped Acreage
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    December 31, 2010
 | 
| 
 
 | 
 
 | 
    United States
 | 
 
 | 
    Canada
 | 
 
 | 
    Colombia
 | 
 
 | 
    Total
 | 
| 
 
 | 
 
 | 
    Gross
 | 
 
 | 
    Net
 | 
 
 | 
    Gross
 | 
 
 | 
    Net
 | 
 
 | 
    Gross
 | 
 
 | 
    Net
 | 
 
 | 
    Gross
 | 
 
 | 
    Net
 | 
|  
 | 
| 
 
    Consolidated Subsidiaries
 
 | 
 
 | 
 
 | 
    347,662
 | 
 
 | 
 
 | 
 
 | 
    128,244
 | 
 
 | 
 
 | 
 
 | 
    46,440
 | 
 
 | 
 
 | 
 
 | 
    34,554
 | 
 
 | 
 
 | 
 
 | 
    546,384
 | 
 
 | 
 
 | 
 
 | 
    247,299
 | 
 
 | 
 
 | 
 
 | 
    940,486
 | 
 
 | 
 
 | 
 
 | 
    410,097
 | 
 
 | 
| 
 
    Equity Companies(1)
 
 | 
 
 | 
 
 | 
    574,841
 | 
 
 | 
 
 | 
 
 | 
    218,596
 | 
 
 | 
 
 | 
 
 | 
    83,821
 | 
 
 | 
 
 | 
 
 | 
    53,279
 | 
 
 | 
 
 | 
 
 | 
    739,533
 | 
 
 | 
 
 | 
 
 | 
    448,185
 | 
 
 | 
 
 | 
 
 | 
    1,398,195
 | 
 
 | 
 
 | 
 
 | 
    720,060
 | 
 
 | 
 
 
     | 
     | 
     | 
    | 
    (1)  | 
     | 
    
    Represents our proportionate interests in our equity companies. | 
 
    Additional information about our properties can be found in
    Notes 2  Summary of Significant Accounting
    Policies, 8  Property, Plant and Equipment (each,
    under the caption Property, Plant and Equipment), 16 
    Commitments and Contingencies (under the caption Operating
    Leases), and 24  Supplemental Information on Oil and
    Gas Exploration and Production Activities in Part II,
    Item 8.  Financial Statements and Supplementary
    Data. The revenues and property, plant and equipment by
    geographic area for the years ended December 31, 2010, 2009
    and 2008, can be found in Note 22  Segment
    Information. A description of our rig fleet is included under
    the caption Introduction in Part I,
    Item 1.  Business.
 
    Management believes that our existing equipment and facilities
    are adequate to support our current level of operations as well
    as an expansion of drilling operations in those geographical
    areas where we may expand.
 
     | 
     | 
    | 
    ITEM 3.  
 | 
    
    LEGAL
    PROCEEDINGS
 | 
 
    Nabors and its subsidiaries are defendants or otherwise involved
    in a number of lawsuits in the ordinary course of business. We
    estimate the range of our liability related to pending
    litigation when we believe the amount and range of loss can be
    estimated. We record our best estimate of a loss when the loss
    is considered probable. When a liability is probable and there
    is a range of estimated loss with no best estimate in the range,
    we record the minimum estimated liability related to the
    lawsuits or claims. As additional information becomes available,
    we assess the potential liability related to our pending
    litigation and claims and revise our estimates. Due to
    uncertainties related to the resolution of lawsuits and claims,
    the ultimate outcome may differ from our estimates. In the
    opinion of management and based on liability accruals provided,
    our ultimate exposure with respect to these pending lawsuits and
    claims is not expected to have a material adverse effect on our
    consolidated financial position or cash flows, although they
    could have a material adverse effect on our results of
    operations for a particular reporting period.
 
    On July 5, 2007, we received an inquiry from the United
    States Department of Justice relating to its investigation of
    one of our vendors and compliance with the Foreign Corrupt
    Practices Act. The inquiry relates to transactions with and
    involving Panalpina, which provided freight forwarding and
    customs clearance services to some of our affiliates. To date,
    the inquiry has focused on transactions in Kazakhstan, Saudi
    Arabia, Algeria and Nigeria. The Audit Committee of our Board of
    Directors engaged outside counsel to review some of our
    transactions with this vendor, has received periodic updates at
    its regularly scheduled meetings, and the Chairman of the Audit
    Committee has received updates between meetings as circumstances
    warrant. The investigation includes a review of certain amounts
    paid to and by Panalpina in connection with obtaining permits
    for the temporary importation of equipment and clearance of
    goods and materials through customs. Both the SEC and the United
    States Department of Justice have been advised of our
    investigation.
    
    24
 
    The ultimate outcome of this investigation or the effect of
    implementing any further measures that may be necessary to
    ensure full compliance with applicable laws cannot be determined
    at this time.
 
    A court in Algeria entered a judgment of approximately
    $19.7 million against us related to alleged customs
    infractions in 2009. We believe we did not receive proper notice
    of the judicial proceedings, and that the amount of the judgment
    is excessive. We have asserted the lack of legally required
    notice as a basis for challenging the judgment on appeal to the
    Algeria Supreme Court. Based upon our understanding of
    applicable law and precedent, we believe that this challenge
    will be successful. We do not believe that a loss is probable
    and have not accrued any amounts related to this matter.
    However, the ultimate resolution and the timing thereof are
    uncertain. If we are ultimately required to pay a fine or
    judgment related to this matter, the amount of the loss could
    range from approximately $140,000 to $19.7 million.
 
    In August 2010, Nabors and its wholly owned subsidiary, Diamond
    Acquisition Corp. (Diamond) were sued in three
    putative shareholder class actions. Two of the cases were
    dismissed. The remaining case pending, Jordan Denney,
    Individually and on Behalf of All Others Similarly
    Situated v. David E. Wallace, et al., Civil Action
    No. 10-1154,
    is pending in the United States District Court for the Western
    District of Pennsylvania. The suits were brought against
    Superior, the individual members of its board of directors,
    certain of Superiors senior officers, Nabors and Diamond.
    The complaints alleged that Superiors officers and
    directors violated various provisions of the Exchange Act and
    breached their fiduciary duties in connection with the Superior
    Merger, and that Nabors and Diamond aided and abetted these
    violations. The complaints sought injunctive relief, including
    an injunction against the consummation of the Superior Merger,
    monetary damages, and attorneys fees and costs. The claim
    against Superior and its directors is covered by insurance after
    a deductible amount. We anticipate settling the claims in the
    first or second quarter of 2011, and that any settlement will be
    funded by Superiors insurers to the extent it exceeds our
    deductible.
 
     | 
     | 
    | 
    ITEM 4.  
 | 
    
    (REMOVED
    AND RESERVED)
 | 
    
    25
 
 
    PART II
 
     | 
     | 
    | 
    ITEM 5.  
 | 
    
    MARKET
    FOR REGISTRANTS COMMON EQUITY, RELATED SHAREHOLDER MATTERS
    AND ISSUER PURCHASES OF EQUITY SECURITIES
 | 
 
    STOCK
    PERFORMANCE GRAPH
 
    The following graph illustrates comparisons of five-year
    cumulative total returns among Nabors, the S&P 500 Index
    and the Dow Jones Oil Equipment and Services Index. Total return
    assumes $100 invested on December 31, 2005 in shares of
    Nabors, the S&P 500 Index, and the Dow Jones Oil Equipment
    and Services Index. It also assumes reinvestment of dividends
    and is calculated at the end of each calendar year,
    December 31, 2006  2010.
 
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
 
 | 
    2006
 | 
 
 | 
 
 | 
    2007
 | 
 
 | 
 
 | 
    2008
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
 
 | 
    2010
 | 
| 
 
    Nabors Industries Ltd. 
 
 | 
 
 | 
 
 | 
 
 | 
    79
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    72
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    32
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    58
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    62
 | 
 
 | 
| 
 
    S&P 500 Index
 
 | 
 
 | 
 
 | 
 
 | 
    116
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    122
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    77
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    97
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    112
 | 
 
 | 
| 
 
    Dow Jones Oil Equipment and Services Index
 
 | 
 
 | 
 
 | 
 
 | 
    113
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    164
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    67
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    111
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    141
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    
    26
 
     | 
     | 
    | 
    I.  
 | 
    
    Market
    and Share Prices
 | 
 
    Our common shares are traded on the New York Stock Exchange
    under the symbol NBR. At February 24, 2011,
    there were approximately 1,573 shareholders of record. We
    have not paid any cash dividends on our common shares since 1982
    and currently have no intentions to do so. However, we can give
    no assurance that we will not reevaluate our position on
    dividends in the future.
 
    The following table sets forth the reported high and low sales
    prices of our common shares as reported on the New York Stock
    Exchange for the periods indicated.
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Share Price
 | 
 
 | 
| 
    Calendar Year
 | 
 
 | 
    High
 | 
 
 | 
 
 | 
    Low
 | 
 
 | 
|  
 | 
| 
 
    2009
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    First quarter
 
 | 
 
 | 
 
 | 
    14.05
 | 
 
 | 
 
 | 
 
 | 
    8.25
 | 
 
 | 
| 
 
    Second quarter
 
 | 
 
 | 
 
 | 
    19.79
 | 
 
 | 
 
 | 
 
 | 
    9.38
 | 
 
 | 
| 
 
    Third quarter
 
 | 
 
 | 
 
 | 
    21.48
 | 
 
 | 
 
 | 
 
 | 
    13.78
 | 
 
 | 
| 
 
    Fourth quarter
 
 | 
 
 | 
 
 | 
    24.07
 | 
 
 | 
 
 | 
 
 | 
    19.18
 | 
 
 | 
| 
 
    2010
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    First quarter
 
 | 
 
 | 
 
 | 
    27.05
 | 
 
 | 
 
 | 
 
 | 
    18.74
 | 
 
 | 
| 
 
    Second quarter
 
 | 
 
 | 
 
 | 
    22.82
 | 
 
 | 
 
 | 
 
 | 
    16.90
 | 
 
 | 
| 
 
    Third quarter
 
 | 
 
 | 
 
 | 
    19.13
 | 
 
 | 
 
 | 
 
 | 
    15.54
 | 
 
 | 
| 
 
    Fourth quarter
 
 | 
 
 | 
 
 | 
    23.93
 | 
 
 | 
 
 | 
 
 | 
    17.36
 | 
 
 | 
 
    The following table provides information relating to
    Nabors repurchase of common shares during the three months
    ended December 31, 2010:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Approximate Dollar 
    
 | 
 
 | 
| 
 
 | 
 
 | 
    Total Number 
    
 | 
 
 | 
 
 | 
    Average 
    
 | 
 
 | 
 
 | 
    Total Number of 
    
 | 
 
 | 
 
 | 
    Value of Shares 
    
 | 
 
 | 
| 
 
 | 
 
 | 
    of Shares 
    
 | 
 
 | 
 
 | 
    Price Paid 
    
 | 
 
 | 
 
 | 
    Shares Purchased as 
    
 | 
 
 | 
 
 | 
    that May Yet Be 
    
 | 
 
 | 
| 
 
 | 
 
 | 
    Purchased 
    
 | 
 
 | 
 
 | 
    per 
    
 | 
 
 | 
 
 | 
    Part of Publicly 
    
 | 
 
 | 
 
 | 
    Purchased Under the 
    
 | 
 
 | 
| 
    Period
 | 
 
 | 
    (1)
 | 
 
 | 
 
 | 
    Share(1)
 | 
 
 | 
 
 | 
    Announced Program
 | 
 
 | 
 
 | 
    Program(2)
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands, except per share amounts)
 | 
 
 | 
|  
 | 
| 
 
    October 1  October 31
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    35,458
 | 
 
 | 
| 
 
    November 1  November 30
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    21.85
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    35,458
 | 
 
 | 
| 
 
    December 1  December 31
 
 | 
 
 | 
 
 | 
    3,073
 | 
 
 | 
 
 | 
    $
 | 
    23.15
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    35,458
 | 
 
 | 
 
 
     | 
     | 
     | 
    | 
    (1)  | 
     | 
    
    Shares were withheld from employees and directors to satisfy
    certain tax withholding obligations due in connection with
    grants of stock under our 2003 Employee Stock Plan and option
    exercises from our 1996 Employee Stock Plan, 1999 Stock Option
    Plan for Non-Employee Directors and our 1998 Employee Stock
    Plan. The 2003 Employee Stock Plan, 1998 Employee Stock Plan,
    1999 Stock Option Plan for Non-Employee Directors and 1996
    Employee Stock Plan provide for the withholding of shares to
    satisfy tax obligations, but do not specify a maximum number of
    shares that can be withheld for this purpose. These shares were
    not purchased as part of a publicly announced program to
    purchase common shares. | 
|   | 
    | 
    (2)  | 
     | 
    
    In July 2006 our Board of Directors authorized a share
    repurchase program under which we may repurchase up to
    $500 million of our common shares in the open market or in
    privately negotiated transactions. Through December 31,
    2010, $464.5 million of our common shares had been
    repurchased under this program. As of December 31, 2010, we
    had the capacity to repurchase up to an additional
    $35.5 million of our common shares under the July
    2006 share repurchase program. | 
 
    See Part III, Item 12. for a description of securities
    authorized for issuance under equity compensation plans.
 
 
    See Part I, Item 1A.  Risk
    Factors  We do not currently intend to pay
    dividends on our common shares and Part II,
    Item 5.  I. Market and Share Prices.
    
    27
 
    III.
    Shareholder Matters
 
    Bermuda has exchange controls which apply to residents in
    respect of the Bermuda dollar. As an exempt company, Nabors is
    considered to be nonresident for such controls; consequently,
    there are no Bermuda governmental restrictions on our ability to
    make transfers and carry out transactions in all other
    currencies, including currency of the United States.
 
    There is no reciprocal tax treaty between Bermuda and the United
    States regarding withholding taxes. Under existing Bermuda law
    there is no Bermuda income or withholding tax on dividends paid
    by Nabors to its shareholders. Furthermore, no Bermuda tax is
    levied on the sale or transfer (including by gift
    and/or on
    the death of the shareholder) of Nabors common shares (other
    than by shareholders resident in Bermuda).
 
     | 
     | 
    | 
    ITEM 6.  
 | 
    
    SELECTED
    FINANCIAL DATA
 | 
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
 
 | 
| 
    Operating Data(1)(2)
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
 
 | 
    2008
 | 
 
 | 
 
 | 
    2007
 | 
 
 | 
 
 | 
    2006
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands, except per share amounts and ratio data)
 | 
 
 | 
|  
 | 
| 
 
    Revenues and other income:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Operating revenues
 
 | 
 
 | 
    $
 | 
    4,174,635
 | 
 
 | 
 
 | 
    $
 | 
    3,683,419
 | 
 
 | 
 
 | 
    $
 | 
    5,507,542
 | 
 
 | 
 
 | 
    $
 | 
    4,938,748
 | 
 
 | 
 
 | 
    $
 | 
    4,707,268
 | 
 
 | 
| 
 
    Earnings (losses) from unconsolidated affiliates
 
 | 
 
 | 
 
 | 
    33,257
 | 
 
 | 
 
 | 
 
 | 
    (155,433
 | 
    )
 | 
 
 | 
 
 | 
    (192,548
 | 
    )
 | 
 
 | 
 
 | 
    20,980
 | 
 
 | 
 
 | 
 
 | 
    20,545
 | 
 
 | 
| 
 
    Investment income (loss)
 
 | 
 
 | 
 
 | 
    7,648
 | 
 
 | 
 
 | 
 
 | 
    25,599
 | 
 
 | 
 
 | 
 
 | 
    21,412
 | 
 
 | 
 
 | 
 
 | 
    (16,290
 | 
    )
 | 
 
 | 
 
 | 
    101,907
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total revenues and other income
 
 | 
 
 | 
 
 | 
    4,215,540
 | 
 
 | 
 
 | 
 
 | 
    3,553,585
 | 
 
 | 
 
 | 
 
 | 
    5,336,406
 | 
 
 | 
 
 | 
 
 | 
    4,943,438
 | 
 
 | 
 
 | 
 
 | 
    4,829,720
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Costs and other deductions:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Direct costs
 
 | 
 
 | 
 
 | 
    2,423,602
 | 
 
 | 
 
 | 
 
 | 
    2,001,404
 | 
 
 | 
 
 | 
 
 | 
    3,100,613
 | 
 
 | 
 
 | 
 
 | 
    2,763,462
 | 
 
 | 
 
 | 
 
 | 
    2,508,611
 | 
 
 | 
| 
 
    General and administrative expenses
 
 | 
 
 | 
 
 | 
    346,661
 | 
 
 | 
 
 | 
 
 | 
    428,161
 | 
 
 | 
 
 | 
 
 | 
    479,194
 | 
 
 | 
 
 | 
 
 | 
    436,274
 | 
 
 | 
 
 | 
 
 | 
    416,582
 | 
 
 | 
| 
 
    Depreciation and amortization
 
 | 
 
 | 
 
 | 
    764,253
 | 
 
 | 
 
 | 
 
 | 
    667,100
 | 
 
 | 
 
 | 
 
 | 
    614,367
 | 
 
 | 
 
 | 
 
 | 
    469,669
 | 
 
 | 
 
 | 
 
 | 
    365,357
 | 
 
 | 
| 
 
    Depletion
 
 | 
 
 | 
 
 | 
    17,943
 | 
 
 | 
 
 | 
 
 | 
    9,417
 | 
 
 | 
 
 | 
 
 | 
    22,308
 | 
 
 | 
 
 | 
 
 | 
    30,904
 | 
 
 | 
 
 | 
 
 | 
    38,580
 | 
 
 | 
| 
 
    Interest expense
 
 | 
 
 | 
 
 | 
    273,044
 | 
 
 | 
 
 | 
 
 | 
    266,039
 | 
 
 | 
 
 | 
 
 | 
    196,718
 | 
 
 | 
 
 | 
 
 | 
    154,919
 | 
 
 | 
 
 | 
 
 | 
    120,507
 | 
 
 | 
| 
 
    Losses (gains) on sales and retirements of long-lived assets and
    other expense (income), net
 
 | 
 
 | 
 
 | 
    47,060
 | 
 
 | 
 
 | 
 
 | 
    12,559
 | 
 
 | 
 
 | 
 
 | 
    15,829
 | 
 
 | 
 
 | 
 
 | 
    11,777
 | 
 
 | 
 
 | 
 
 | 
    22,092
 | 
 
 | 
| 
 
    Impairments and other charges
 
 | 
 
 | 
 
 | 
    260,931
 | 
 
 | 
 
 | 
 
 | 
    330,976
 | 
 
 | 
 
 | 
 
 | 
    176,123
 | 
 
 | 
 
 | 
 
 | 
    41,017
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total costs and other deductions
 
 | 
 
 | 
 
 | 
    4,133,494
 | 
 
 | 
 
 | 
 
 | 
    3,715,656
 | 
 
 | 
 
 | 
 
 | 
    4,605,152
 | 
 
 | 
 
 | 
 
 | 
    3,908,022
 | 
 
 | 
 
 | 
 
 | 
    3,471,729
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Income (loss) from continuing operations before income taxes
 
 | 
 
 | 
 
 | 
    82,046
 | 
 
 | 
 
 | 
 
 | 
    (162,071
 | 
    )
 | 
 
 | 
 
 | 
    731,254
 | 
 
 | 
 
 | 
 
 | 
    1,035,416
 | 
 
 | 
 
 | 
 
 | 
    1,357,991
 | 
 
 | 
| 
 
    Income tax expense (benefit)
 
 | 
 
 | 
 
 | 
    (24,814
 | 
    )
 | 
 
 | 
 
 | 
    (133,803
 | 
    )
 | 
 
 | 
 
 | 
    209,660
 | 
 
 | 
 
 | 
 
 | 
    201,896
 | 
 
 | 
 
 | 
 
 | 
    407,282
 | 
 
 | 
| 
 
    Subsidiary preferred stock dividend
 
 | 
 
 | 
 
 | 
    750
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Income (loss) from continuing operations, net of tax
 
 | 
 
 | 
 
 | 
    106,110
 | 
 
 | 
 
 | 
 
 | 
    (28,268
 | 
    )
 | 
 
 | 
 
 | 
    521,594
 | 
 
 | 
 
 | 
 
 | 
    833,520
 | 
 
 | 
 
 | 
 
 | 
    950,709
 | 
 
 | 
| 
 
    Income (loss) from discontinued operations, net of tax
 
 | 
 
 | 
 
 | 
    (11,330
 | 
    )
 | 
 
 | 
 
 | 
    (57,620
 | 
    )
 | 
 
 | 
 
 | 
    (41,930
 | 
    )
 | 
 
 | 
 
 | 
    31,762
 | 
 
 | 
 
 | 
 
 | 
    24,927
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net income (loss)
 
 | 
 
 | 
 
 | 
    94,780
 | 
 
 | 
 
 | 
 
 | 
    (85,888
 | 
    )
 | 
 
 | 
 
 | 
    479,664
 | 
 
 | 
 
 | 
 
 | 
    865,282
 | 
 
 | 
 
 | 
 
 | 
    975,636
 | 
 
 | 
| 
 
    Less: Net (income) loss attributable to noncontrolling interest
 
 | 
 
 | 
 
 | 
    (85
 | 
    )
 | 
 
 | 
 
 | 
    342
 | 
 
 | 
 
 | 
 
 | 
    (3,927
 | 
    )
 | 
 
 | 
 
 | 
    420
 | 
 
 | 
 
 | 
 
 | 
    (1,914
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net income (loss) attributable to Nabors
 
 | 
 
 | 
    $
 | 
    94,695
 | 
 
 | 
 
 | 
    $
 | 
    (85,546
 | 
    )
 | 
 
 | 
    $
 | 
    475,737
 | 
 
 | 
 
 | 
    $
 | 
    865,702
 | 
 
 | 
 
 | 
    $
 | 
    973,722
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    
    28
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
 
 | 
| 
    Operating Data(1)(2)
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
 
 | 
    2008
 | 
 
 | 
 
 | 
    2007
 | 
 
 | 
 
 | 
    2006
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands, except per share amounts and ratio data)
 | 
 
 | 
|  
 | 
| 
 
    Earnings (losses) per share:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Basic from continuing operations
 
 | 
 
 | 
    $
 | 
           .37
 | 
 
 | 
 
 | 
    $
 | 
    (.10
 | 
    )
 | 
 
 | 
    $
 | 
    1.84
 | 
 
 | 
 
 | 
    $
 | 
    2.97
 | 
 
 | 
 
 | 
    $
 | 
    3.26
 | 
 
 | 
| 
 
    Basic from discontinued operations
 
 | 
 
 | 
 
 | 
    (.04
 | 
    )
 | 
 
 | 
 
 | 
    (.20
 | 
    )
 | 
 
 | 
 
 | 
    (.15
 | 
    )
 | 
 
 | 
 
 | 
    .11
 | 
 
 | 
 
 | 
 
 | 
    .09
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total Basic
 
 | 
 
 | 
    $
 | 
           .33
 | 
 
 | 
 
 | 
    $
 | 
    (.30
 | 
    )
 | 
 
 | 
    $
 | 
    1.69
 | 
 
 | 
 
 | 
    $
 | 
    3.08
 | 
 
 | 
 
 | 
    $
 | 
    3.35
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Diluted from continuing operations
 
 | 
 
 | 
    $
 | 
           .37
 | 
 
 | 
 
 | 
    $
 | 
    (.10
 | 
    )
 | 
 
 | 
    $
 | 
    1.80
 | 
 
 | 
 
 | 
    $
 | 
    2.89
 | 
 
 | 
 
 | 
    $
 | 
    3.16
 | 
 
 | 
| 
 
    Diluted from discontinued operations
 
 | 
 
 | 
 
 | 
    (.04
 | 
    )
 | 
 
 | 
 
 | 
    (.20
 | 
    )
 | 
 
 | 
 
 | 
    (.15
 | 
    )
 | 
 
 | 
 
 | 
    .11
 | 
 
 | 
 
 | 
 
 | 
    .08
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total Diluted
 
 | 
 
 | 
    $
 | 
           .33
 | 
 
 | 
 
 | 
    $
 | 
    (.30
 | 
    )
 | 
 
 | 
    $
 | 
    1.65
 | 
 
 | 
 
 | 
    $
 | 
    3.00
 | 
 
 | 
 
 | 
    $
 | 
    3.24
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Weighted-average number of common shares outstanding:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Basic
 
 | 
 
 | 
 
 | 
    285,145
 | 
 
 | 
 
 | 
 
 | 
    283,326
 | 
 
 | 
 
 | 
 
 | 
    281,622
 | 
 
 | 
 
 | 
 
 | 
    281,238
 | 
 
 | 
 
 | 
 
 | 
    291,267
 | 
 
 | 
| 
 
    Diluted
 
 | 
 
 | 
 
 | 
    289,996
 | 
 
 | 
 
 | 
 
 | 
    283,326
 | 
 
 | 
 
 | 
 
 | 
    288,236
 | 
 
 | 
 
 | 
 
 | 
    288,226
 | 
 
 | 
 
 | 
 
 | 
    300,677
 | 
 
 | 
| 
 
    Capital expenditures and acquisitions of businesses(3)
 
 | 
 
 | 
    $
 | 
    1,878,063
 | 
 
 | 
 
 | 
    $
 | 
    990,287
 | 
 
 | 
 
 | 
    $
 | 
    1,578,241
 | 
 
 | 
 
 | 
    $
 | 
    1,945,932
 | 
 
 | 
 
 | 
    $
 | 
    2,006,286
 | 
 
 | 
| 
 
    Interest coverage ratio(4)
 
 | 
 
 | 
 
 | 
    7.0:1
 | 
 
 | 
 
 | 
 
 | 
    6.3:1
 | 
 
 | 
 
 | 
 
 | 
    21.0:1
 | 
 
 | 
 
 | 
 
 | 
    32.6:1
 | 
 
 | 
 
 | 
 
 | 
    38.2:1
 | 
 
 | 
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    As of December 31,
 | 
| 
    Balance Sheet Data(1)(2)
 | 
 
 | 
    2010
 | 
 
 | 
    2009
 | 
 
 | 
    2008
 | 
 
 | 
    2007
 | 
 
 | 
    2006
 | 
| 
 
 | 
 
 | 
    (In thousands, except ratio data)
 | 
|  
 | 
| 
 
    Cash, cash equivalents, short-term and long-term investments and
    other receivables(5)
 
 | 
 
 | 
    $
 | 
    841,490
 | 
 
 | 
 
 | 
    $
 | 
    1,191,733
 | 
 
 | 
 
 | 
    $
 | 
    826,063
 | 
 
 | 
 
 | 
    $
 | 
    1,179,639
 | 
 
 | 
 
 | 
    $
 | 
    1,653,285
 | 
 
 | 
| 
 
    Working capital
 
 | 
 
 | 
 
 | 
    458,550
 | 
 
 | 
 
 | 
 
 | 
    1,568,042
 | 
 
 | 
 
 | 
 
 | 
    1,037,734
 | 
 
 | 
 
 | 
 
 | 
    719,674
 | 
 
 | 
 
 | 
 
 | 
    1,650,496
 | 
 
 | 
| 
 
    Property, plant and equipment, net
 
 | 
 
 | 
 
 | 
    7,815,419
 | 
 
 | 
 
 | 
 
 | 
    7,646,050
 | 
 
 | 
 
 | 
 
 | 
    7,331,959
 | 
 
 | 
 
 | 
 
 | 
    6,669,013
 | 
 
 | 
 
 | 
 
 | 
    5,423,729
 | 
 
 | 
| 
 
    Total assets
 
 | 
 
 | 
 
 | 
    11,646,569
 | 
 
 | 
 
 | 
 
 | 
    10,644,690
 | 
 
 | 
 
 | 
 
 | 
    10,517,899
 | 
 
 | 
 
 | 
 
 | 
    10,139,783
 | 
 
 | 
 
 | 
 
 | 
    9,155,931
 | 
 
 | 
| 
 
    Long-term debt
 
 | 
 
 | 
 
 | 
    3,064,126
 | 
 
 | 
 
 | 
 
 | 
    3,940,605
 | 
 
 | 
 
 | 
 
 | 
    3,600,533
 | 
 
 | 
 
 | 
 
 | 
    2,894,659
 | 
 
 | 
 
 | 
 
 | 
    3,457,675
 | 
 
 | 
| 
 
    Shareholders equity
 
 | 
 
 | 
 
 | 
    5,328,162
 | 
 
 | 
 
 | 
 
 | 
    5,167,656
 | 
 
 | 
 
 | 
 
 | 
    4,904,106
 | 
 
 | 
 
 | 
 
 | 
    4,801,579
 | 
 
 | 
 
 | 
 
 | 
    3,889,100
 | 
 
 | 
| 
 
    Funded debt to capital ratio:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Gross(6)
 
 | 
 
 | 
 
 | 
    0.42:1
 | 
 
 | 
 
 | 
 
 | 
    0.41:1
 | 
 
 | 
 
 | 
 
 | 
    0.41:1
 | 
 
 | 
 
 | 
 
 | 
    0.39:1
 | 
 
 | 
 
 | 
 
 | 
    0.43:1
 | 
 
 | 
| 
 
    Net(7)
 
 | 
 
 | 
 
 | 
    0.37:1
 | 
 
 | 
 
 | 
 
 | 
    0.33:1
 | 
 
 | 
 
 | 
 
 | 
    0.35:1
 | 
 
 | 
 
 | 
 
 | 
    0.30:1
 | 
 
 | 
 
 | 
 
 | 
    0.28:1
 | 
 
 | 
 
 
     | 
     | 
     | 
    | 
    (1)  | 
     | 
    
    All periods present the operating activities of oil and gas
    assets in the Horn River basin in Canada and in the Llanos basin
    in Colombia and the Sea Mar business as discontinued operations. | 
|   | 
    | 
    (2)  | 
     | 
    
    Our acquisitions results of operations and financial
    position have been included beginning on the respective dates of
    acquisition and include Superior (September 2010), Energy
    Contractors (December 2010), Pragma Drilling Equipment Ltd.
    assets (May 2006), and 1183011 Alberta Ltd. (January 2006). | 
|   | 
    | 
    (3)  | 
     | 
    
    Represents capital expenditures and the portion of the purchase
    price of acquisitions allocated to fixed assets and goodwill
    based on their fair market value. | 
|   | 
    | 
    (4)  | 
     | 
    
    The interest coverage ratio is a trailing
    12-month
    quotient of the sum of income (loss) from continuing operations,
    net of tax, net income (loss) attributable to noncontrolling
    interest, interest expense, subsidiary preferred stock
    dividends, depreciation and amortization, depletion expense,
    impairments and other charges, income tax expense (benefit) and
    our proportionate share of full-cost ceiling test writedowns
    from our unconsolidated oil and gas joint ventures less
    investment income (loss) divided by cash interest  | 
    29
 
     | 
     | 
     | 
    | 
 | 
     | 
    
    expense plus subsidiary preferred stock dividends. This ratio is
    a method for calculating the amount of operating cash flows
    available to cover interest expense. The interest coverage ratio
    is not a measure of operating performance or liquidity defined
    by GAAP and may not be comparable to similarly titled measures
    presented by other companies. | 
|   | 
    | 
    (5)  | 
     | 
    
    The December 31, 2008 and 2007 amounts include
    $1.9 million and $53.1 million, respectively, in cash
    proceeds receivable from brokers from the sale of certain
    long-term investments that are included in other current assets.
    Additionally, the December 31, 2010, 2009 and 2008 amounts
    include $32.9 million, $92.5 million and
    $224.2 million, respectively, in oil and gas financing
    receivables that are included in long-term investments and other
    receivables. | 
|   | 
    | 
    (6)  | 
     | 
    
    The gross funded debt to capital ratio is calculated by dividing
    (x) funded debt by (y) funded debt plus
    deferred tax liabilities (net of deferred tax assets)
    plus capital. Funded debt is the sum of
    (1) short-term borrowings, (2) the current portion of
    long-term debt and (3) long-term debt. Capital is defined
    as shareholders equity. The gross funded debt to capital
    ratio is not a measure of operating performance or liquidity
    defined by GAAP and may not be comparable to similarly titled
    measures presented by other companies. | 
|   | 
    | 
    (7)  | 
     | 
    
    The net funded debt to capital ratio is calculated by dividing
    (x) net funded debt by (y) net funded debt plus
    deferred tax liabilities (net of deferred tax assets)
    plus capital. Net funded debt is funded debt minus
    the sum of cash and cash equivalents and short-term and
    long-term investments and other receivables. The net funded debt
    to capital ratio is not a measure of operating performance or
    liquidity defined by GAAP and may not be comparable to similarly
    titled measures presented by other companies. | 
 
     | 
     | 
    | 
    ITEM 7.  
 | 
    
    MANAGEMENTS
    DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF
    OPERATIONS
 | 
 
    Management
    Overview
 
    The following Managements Discussion and Analysis of
    Financial Condition and Results of Operations is intended to
    help the reader understand the results of our operations and our
    financial condition. This information is provided as a
    supplement to, and should be read in conjunction with, our
    consolidated financial statements and the accompanying notes
    thereto.
 
    We have grown from a land drilling business centered in the
    U.S. Lower 48 states, Canada and Alaska to an
    international business with operations on land and offshore in
    many of the major oil and gas markets in the world. Our
    worldwide fleet of actively marketed rigs consists of over
    550 land drilling rigs, more than 700 rigs for land
    well-servicing and workover work in the United States and
    Canada, offshore platform rigs,
    jack-up
    units, barge rigs and a large component of trucks and fluid
    hauling vehicles. We invest in oil and gas exploration,
    development and production activities in the United States,
    Canada and Colombia.
 
    The majority of our business is conducted through our various
    Contract Drilling operating segments, which include our
    drilling, well-servicing and workover operations and pressure
    pumping, on land and offshore. Our oil and gas exploration,
    development and production operations are included in our Oil
    and Gas operating segment. Our operating segments engaged in
    drilling technology and top drive manufacturing, directional
    drilling, rig instrumentation and software, and construction and
    logistics operations are aggregated in our Other Operating
    Segments.
 
    Our businesses depend, to a large degree, on the level of
    spending by oil and gas companies for exploration, development
    and production activities. Therefore, a sustained increase or
    decrease in the price of natural gas or oil, which could have a
    material impact on exploration, development and production
    activities, could also materially affect our financial position,
    results of operations and cash flows.
 
    The magnitude of customer spending on new and existing wells is
    the primary driver of our business. The primary determinant of
    customer spending is their cash flow and earnings, which (i) in
    our U.S. Lower 48 Land Drilling and Canadian Drilling
    operations are largely driven by natural gas prices and (ii) in
    our Alaskan, International, U.S. Offshore (Gulf of Mexico),
    Canadian Well-servicing and U.S. Land Well-servicing
    operations by oil prices. Both natural gas and oil prices impact
    our customers activity levels and spending for our
    Pressure Pumping operations. Oil and natural gas liquids prices
    are beginning to be more significant
    
    30
 
    factors in some of the traditionally natural-gas-driven
    operating segments. The following table sets forth natural gas
    and oil price data per Bloomberg for the last three years:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
 
 | 
    Increase/(Decrease)
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
    2009
 | 
 
 | 
    2008
 | 
 
 | 
    2010 to 2009
 | 
 
 | 
    2009 to 2008
 | 
|  
 | 
| 
 
    Commodity prices:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Average Henry Hub natural gas spot price ($/thousand cubic feet
    (mcf))
 
 | 
 
 | 
    $
 | 
    4.37
 | 
 
 | 
 
 | 
    $
 | 
    3.94
 | 
 
 | 
 
 | 
    $
 | 
    8.89
 | 
 
 | 
 
 | 
    $
 | 
    .43
 | 
 
 | 
 
 | 
 
 | 
    11
 | 
    %
 | 
 
 | 
    $
 | 
    (4.95
 | 
    )
 | 
 
 | 
 
 | 
    (56
 | 
    )%
 | 
| 
 
    Average West Texas intermediate crude oil spot price ($/barrel)
 
 | 
 
 | 
    $
 | 
    79.51
 | 
 
 | 
 
 | 
    $
 | 
    61.99
 | 
 
 | 
 
 | 
    $
 | 
    99.92
 | 
 
 | 
 
 | 
    $
 | 
    17.52
 | 
 
 | 
 
 | 
 
 | 
    28
 | 
    %
 | 
 
 | 
    $
 | 
    (37.93
 | 
    )
 | 
 
 | 
 
 | 
    (38
 | 
    )%
 | 
 
    Beginning in the fourth quarter of 2008, there was a significant
    reduction in the demand for natural gas and oil that was caused,
    at least in part, by the significant deterioration of the global
    economic environment including the extreme volatility in the
    capital and credit markets. Weaker demand throughout 2009
    resulted in sustained lower natural gas and oil prices, which
    led to a sharp decline in the demand for drilling and workover
    services. During 2010, these commodity prices strengthened in
    the latter half of the year and demand for drilling activity
    improved. Continued fluctuations in the demand for gas and oil,
    among other factors including supply, could contribute to
    continued price volatility which may continue to affect demand
    for our services and could materially affect our future
    financial results.
 
    Operating revenues and Earnings (losses) from unconsolidated
    affiliates for the year ended December 31, 2010 totaled
    $4.2 billion, representing an increase of
    $679.9 million, or 19% as compared to the year ended
    December 31, 2009. Adjusted income derived from operating
    activities and net income (loss) attributable to Nabors for the
    year ended December 31, 2010 totaled $655.4 million
    and $94.7 million ($.33 per diluted share), respectively,
    representing increases of 55% and 211%, respectively, compared
    to the year ended December 31, 2009.
 
    Operating revenues and Earnings (losses) from unconsolidated
    affiliates for the year ended December 31, 2009 totaled
    $3.5 billion, representing a decrease of $1.8 billion,
    or 34% as compared to the year ended December 31, 2008.
    Adjusted income derived from operating activities and net income
    (loss) attributable to Nabors for the year ended
    December 31, 2009 totaled $421.9 million and
    $(85.5) million ($(.30) per diluted share), respectively,
    representing decreases of 62% and 118%, respectively, compared
    to the year ended December 31, 2008.
 
    During 2010, operating results improved as compared to 2009
    primarily due to the incremental revenue and positive operating
    results from our Pressure Pumping operating segment and
    increased drilling activity in 2010 in our U.S. Lower 48
    Land Drilling and Canada Well-servicing operations relating to
    increased drilling activity in oil and the liquids-oil shale
    plays. Our U.S. Well-servicing business also improved with
    continuing strong crude oil prices, which have led to increased
    activity. However, our operating results and activity levels
    continued to be negatively impacted in our U.S. Offshore
    operations in response to uncertainty in the regulatory
    environment; our Alaskan operations due to key customers
    spending constraints; and elsewhere with less activity in Saudi
    Arabia and Mexico, two of our key markets. There was also
    improvement in our operating results for 2010 because there were
    no full-cost ceiling adjustments recorded by our U.S. oil and
    gas joint venture.
 
    Our U.S. Offshore operations were improving during the
    first half of 2010 until the Gulf of Mexico explosion and oil
    spill occurred mid-year, which resulted in temporary suspension
    of offshore drilling and further delays in our customers
    ability to obtain permits, which has limited the use of our
    assets. Specifically, operating results have been impacted
    because our customers have suspended most of their operations in
    the Gulf of Mexico, largely as a result of their inability to
    obtain government permits. Although the previously issued
    U.S. deepwater drilling moratorium has been lifted, it is
    uncertain whether our customers ability to obtain
    government permits will improve in the near term. Our Alaska
    operating segment has been negatively impacted because the
    largest operator in the area has curtailed and suspended
    drilling operations, creating a surplus of rigs in the market
    and causing price competition. We expect that these conditions
    will persist and continue to adversely impact our Alaska
    operating results through 2011. We expect our International
    results to remain flat in 2011 as the increase of land rig
    activity is expected to be essentially offset by contract
    renewals on our
    jack-up rigs
    at significantly lower average dayrates.
    
    31
 
    During 2010, we recorded impairments and other charges of
    $260.9 million. We recognized goodwill and long-lived asset
    impairments of approximately $10.7 million and
    $27.4 million, respectively, to assets in our
    U.S. Offshore operating segment, primarily driven by
    current market conditions in the Gulf of Mexico. Additionally,
    we recognized long-lived asset impairments of $7.5 million
    to our aircraft and some drilling equipment in Canada and
    recorded impairments of $23.2 million relating to asset
    retirements across our U.S. Lower 48 Land,
    U.S. Well-servicing and U.S. Offshore Contract
    Drilling segments. Our Oil and Gas operating segment recorded
    impairments of $54.3 million relating to an oil and gas
    financing receivable and $137.8 million under application
    of the successful-efforts method of accounting for our wholly
    owned oil and gas-related assets.
 
    During 2009 and 2008, our operating results were negatively
    impacted as a result of charges arising from oil and gas
    full-cost ceiling test writedowns and other impairments.
    Earnings (losses) from unconsolidated affiliates includes
    $(189.3) million and $(207.3) million, respectively,
    for the years ended December 31, 2009 and 2008,
    representing our proportionate share of a full-cost ceiling test
    writedown from our unconsolidated U.S. oil and gas joint
    venture which utilizes the full-cost method of accounting.
    During 2009, our joint venture used a
    12-month
    average price in the ceiling test calculation as required by the
    revised SEC rules whereas during 2008, the ceiling test
    calculation used the
    single-day,
    year-end commodity price that, at December 31, 2008, was
    near its low point for that year. The full-cost ceiling test
    writedowns are included in our Oil and Gas operating segment
    results.
 
    During 2009, impairments and other charges of
    $331.0 million included recognition of
    other-than-temporary
    impairments of $54.3 million relating to our
    available-for-sale
    securities, and impairments of $64.2 million to long-lived
    assets that were retired from our U.S. Offshore, Alaska,
    Canada and International contract drilling segments. We also
    recognized a goodwill impairment of $14.7 million relating
    to Nabors Blue Sky Ltd., one of our Canadian subsidiaries, which
    eliminated the remaining goodwill balance relating to remote
    aircraft operations in Canada. Additionally, we recorded
    impairment charges of $48.6 million to our wholly owned
    assets in our Oil and Gas operating segment under application of
    the successful-efforts method of accounting for some of our oil
    and gas-related assets and $149.1 million relating to an
    oil and gas financing receivable during the year ended
    December 31, 2009.
 
    During 2008, impairments and other charges of
    $176.1 million included goodwill and intangible asset
    impairments totaling $154.6 million recorded by our Canada
    Well-servicing and Drilling operating segment and Nabors Blue
    Sky Ltd. We recognized these goodwill and intangible asset
    impairments to reduce the carrying value of these assets to
    their estimated fair value. We consider these writedowns
    necessary because of the duration of the industry downturn in
    Canada and the lack of certainty regarding eventual recovery. We
    also recorded impairment charges of $21.5 million to our
    wholly owned assets in our Oil and Gas operating segment for
    some of our oil and gas-related assets during the year ended
    December 31, 2008.
 
    Our operating results for 2011 are still expected to increase
    from levels realized during 2010, despite a moderating outlook
    of lower commodity prices during 2011 and the related impact on
    drilling and well-servicing activity and dayrates. The major
    factors that support our expectations of an improved year are:
 
     | 
     | 
     | 
    |   | 
         
 | 
    
    An expected incremental increase from ancillary well-site
    services, primarily technical pumping services and down-hole
    surveying services, resulting from our acquisition in the third
    quarter of 2010, and
 | 
|   | 
    |   | 
         
 | 
    
    The anticipated positive impact on our overall level of drilling
    and well-servicing activity and margins resulting from our new
    and upgraded rigs added to our fleet over the past five years,
    which we expect will enhance our competitive position as market
    conditions improve.
 | 
    
    32
 
 
    The following tables set forth certain information with respect
    to our reportable segments and rig activity:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
 
 | 
 
 | 
    Increase/(Decrease)
 | 
 
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
 
 | 
    2008
 | 
 
 | 
 
 | 
    2010 to 2009
 | 
 
 | 
 
 | 
    2009 to 2008
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands, except percentages and rig activity)
 | 
 
 | 
|  
 | 
| 
 
    Reportable segments:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Operating revenues and Earnings (losses) from unconsolidated
    affiliates from continuing operations: (1)
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Contract Drilling: (2)
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    U.S. Lower 48 Land Drilling
 
 | 
 
 | 
    $
 | 
    1,294,853
 | 
 
 | 
 
 | 
    $
 | 
    1,082,531
 | 
 
 | 
 
 | 
    $
 | 
    1,878,441
 | 
 
 | 
 
 | 
    $
 | 
    212,322
 | 
 
 | 
 
 | 
 
 | 
    20
 | 
    %
 | 
 
 | 
    $
 | 
    (795,910
 | 
    )
 | 
 
 | 
 
 | 
    (42
 | 
    )%
 | 
| 
 
    U.S. Land Well-servicing
 
 | 
 
 | 
 
 | 
    444,665
 | 
 
 | 
 
 | 
 
 | 
    412,243
 | 
 
 | 
 
 | 
 
 | 
    758,510
 | 
 
 | 
 
 | 
 
 | 
    32,422
 | 
 
 | 
 
 | 
 
 | 
    8
 | 
    %
 | 
 
 | 
 
 | 
    (346,267
 | 
    )
 | 
 
 | 
 
 | 
    (46
 | 
    )%
 | 
| 
 
    Pressure Pumping(3)
 
 | 
 
 | 
 
 | 
    321,295
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    321,295
 | 
 
 | 
 
 | 
 
 | 
    100
 | 
    %
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    U.S. Offshore
 
 | 
 
 | 
 
 | 
    123,761
 | 
 
 | 
 
 | 
 
 | 
    157,305
 | 
 
 | 
 
 | 
 
 | 
    252,529
 | 
 
 | 
 
 | 
 
 | 
    (33,544
 | 
    )
 | 
 
 | 
 
 | 
    (21
 | 
    )%
 | 
 
 | 
 
 | 
    (95,224
 | 
    )
 | 
 
 | 
 
 | 
    (38
 | 
    )%
 | 
| 
 
    Alaska
 
 | 
 
 | 
 
 | 
    179,218
 | 
 
 | 
 
 | 
 
 | 
    204,407
 | 
 
 | 
 
 | 
 
 | 
    184,243
 | 
 
 | 
 
 | 
 
 | 
    (25,189
 | 
    )
 | 
 
 | 
 
 | 
    (12
 | 
    )%
 | 
 
 | 
 
 | 
    20,164
 | 
 
 | 
 
 | 
 
 | 
    11
 | 
    %
 | 
| 
 
    Canada
 
 | 
 
 | 
 
 | 
    389,229
 | 
 
 | 
 
 | 
 
 | 
    298,653
 | 
 
 | 
 
 | 
 
 | 
    502,695
 | 
 
 | 
 
 | 
 
 | 
    90,576
 | 
 
 | 
 
 | 
 
 | 
    30
 | 
    %
 | 
 
 | 
 
 | 
    (204,042
 | 
    )
 | 
 
 | 
 
 | 
    (41
 | 
    )%
 | 
| 
 
    International
 
 | 
 
 | 
 
 | 
    1,093,608
 | 
 
 | 
 
 | 
 
 | 
    1,265,097
 | 
 
 | 
 
 | 
 
 | 
    1,372,168
 | 
 
 | 
 
 | 
 
 | 
    (171,489
 | 
    )
 | 
 
 | 
 
 | 
    (14
 | 
    )%
 | 
 
 | 
 
 | 
    (107,071
 | 
    )
 | 
 
 | 
 
 | 
    (8
 | 
    )%
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Subtotal Contract Drilling(4)
 
 | 
 
 | 
 
 | 
    3,846,629
 | 
 
 | 
 
 | 
 
 | 
    3,420,236
 | 
 
 | 
 
 | 
 
 | 
    4,948,586
 | 
 
 | 
 
 | 
 
 | 
    426,393
 | 
 
 | 
 
 | 
 
 | 
    12
 | 
    %
 | 
 
 | 
 
 | 
    (1,528,350
 | 
    )
 | 
 
 | 
 
 | 
    (31
 | 
    )%
 | 
| 
 
    Oil and Gas (5)(6)
 
 | 
 
 | 
 
 | 
    40,611
 | 
 
 | 
 
 | 
 
 | 
    (158,780
 | 
    )
 | 
 
 | 
 
 | 
    (118,533
 | 
    )
 | 
 
 | 
 
 | 
    199,391
 | 
 
 | 
 
 | 
 
 | 
    126
 | 
    %
 | 
 
 | 
 
 | 
    (40,247
 | 
    )
 | 
 
 | 
 
 | 
    (34
 | 
    )%
 | 
| 
 
    Other Operating Segments (7)(8)
 
 | 
 
 | 
 
 | 
    456,893
 | 
 
 | 
 
 | 
 
 | 
    446,282
 | 
 
 | 
 
 | 
 
 | 
    683,186
 | 
 
 | 
 
 | 
 
 | 
    10,611
 | 
 
 | 
 
 | 
 
 | 
    2
 | 
    %
 | 
 
 | 
 
 | 
    (236,904
 | 
    )
 | 
 
 | 
 
 | 
    (35
 | 
    )%
 | 
| 
 
    Other reconciling items(9)
 
 | 
 
 | 
 
 | 
    (136,241
 | 
    )
 | 
 
 | 
 
 | 
    (179,752
 | 
    )
 | 
 
 | 
 
 | 
    (198,245
 | 
    )
 | 
 
 | 
 
 | 
    43,511
 | 
 
 | 
 
 | 
 
 | 
    24
 | 
    %
 | 
 
 | 
 
 | 
    18,493
 | 
 
 | 
 
 | 
 
 | 
    9
 | 
    %
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total
 
 | 
 
 | 
    $
 | 
    4,207,892
 | 
 
 | 
 
 | 
    $
 | 
    3,527,986
 | 
 
 | 
 
 | 
    $
 | 
    5,314,994
 | 
 
 | 
 
 | 
    $
 | 
    679,906
 | 
 
 | 
 
 | 
 
 | 
    19
 | 
    %
 | 
 
 | 
    $
 | 
    (1,787,008
 | 
    )
 | 
 
 | 
 
 | 
    (34
 | 
    )%
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Adjusted income (loss) derived from operating activities from
    continuing operations: (1)(10)
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Contract Drilling:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    U.S. Lower 48 Land Drilling
 
 | 
 
 | 
    $
 | 
    274,215
 | 
 
 | 
 
 | 
    $
 | 
    294,679
 | 
 
 | 
 
 | 
    $
 | 
    628,579
 | 
 
 | 
 
 | 
    $
 | 
    (20,464
 | 
    )
 | 
 
 | 
 
 | 
    (7
 | 
    )%
 | 
 
 | 
    $
 | 
    (333,900
 | 
    )
 | 
 
 | 
 
 | 
    (53
 | 
    )%
 | 
| 
 
    U.S. Land Well-servicing
 
 | 
 
 | 
 
 | 
    31,597
 | 
 
 | 
 
 | 
 
 | 
    28,950
 | 
 
 | 
 
 | 
 
 | 
    148,626
 | 
 
 | 
 
 | 
 
 | 
    2,647
 | 
 
 | 
 
 | 
 
 | 
    9
 | 
    %
 | 
 
 | 
 
 | 
    (119,676
 | 
    )
 | 
 
 | 
 
 | 
    (81
 | 
    )%
 | 
| 
 
    Pressure Pumping(3)
 
 | 
 
 | 
 
 | 
    66,651
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    66,651
 | 
 
 | 
 
 | 
 
 | 
    100
 | 
    %
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    U.S. Offshore
 
 | 
 
 | 
 
 | 
    9,245
 | 
 
 | 
 
 | 
 
 | 
    30,508
 | 
 
 | 
 
 | 
 
 | 
    59,179
 | 
 
 | 
 
 | 
 
 | 
    (21,263
 | 
    )
 | 
 
 | 
 
 | 
    (70
 | 
    )%
 | 
 
 | 
 
 | 
    (28,671
 | 
    )
 | 
 
 | 
 
 | 
    (48
 | 
    )%
 | 
| 
 
    Alaska
 
 | 
 
 | 
 
 | 
    51,896
 | 
 
 | 
 
 | 
 
 | 
    62,742
 | 
 
 | 
 
 | 
 
 | 
    52,603
 | 
 
 | 
 
 | 
 
 | 
    (10,846
 | 
    )
 | 
 
 | 
 
 | 
    (17
 | 
    )%
 | 
 
 | 
 
 | 
    10,139
 | 
 
 | 
 
 | 
 
 | 
    19
 | 
    %
 | 
| 
 
    Canada
 
 | 
 
 | 
 
 | 
    22,970
 | 
 
 | 
 
 | 
 
 | 
    (7,019
 | 
    )
 | 
 
 | 
 
 | 
    61,040
 | 
 
 | 
 
 | 
 
 | 
    29,989
 | 
 
 | 
 
 | 
 
 | 
    427
 | 
    %
 | 
 
 | 
 
 | 
    (68,059
 | 
    )
 | 
 
 | 
 
 | 
    (111
 | 
    )%
 | 
| 
 
    International
 
 | 
 
 | 
 
 | 
    254,744
 | 
 
 | 
 
 | 
 
 | 
    365,566
 | 
 
 | 
 
 | 
 
 | 
    407,675
 | 
 
 | 
 
 | 
 
 | 
    (110,822
 | 
    )
 | 
 
 | 
 
 | 
    (30
 | 
    )%
 | 
 
 | 
 
 | 
    (42,109
 | 
    )
 | 
 
 | 
 
 | 
    (10
 | 
    )%
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Subtotal Contract Drilling(4)
 
 | 
 
 | 
 
 | 
    711,318
 | 
 
 | 
 
 | 
 
 | 
    775,426
 | 
 
 | 
 
 | 
 
 | 
    1,357,702
 | 
 
 | 
 
 | 
 
 | 
    (64,108
 | 
    )
 | 
 
 | 
 
 | 
    (8
 | 
    )%
 | 
 
 | 
 
 | 
    (582,276
 | 
    )
 | 
 
 | 
 
 | 
    (43
 | 
    )%
 | 
| 
 
    Oil and Gas(5)(6)
 
 | 
 
 | 
 
 | 
    6,329
 | 
 
 | 
 
 | 
 
 | 
    (190,798
 | 
    )
 | 
 
 | 
 
 | 
    (159,931
 | 
    )
 | 
 
 | 
 
 | 
    197,127
 | 
 
 | 
 
 | 
 
 | 
    103
 | 
    %
 | 
 
 | 
 
 | 
    (30,867
 | 
    )
 | 
 
 | 
 
 | 
    (19
 | 
    )%
 | 
| 
 
    Other Operating Segments (8)(9)
 
 | 
 
 | 
 
 | 
    43,179
 | 
 
 | 
 
 | 
 
 | 
    34,120
 | 
 
 | 
 
 | 
 
 | 
    68,572
 | 
 
 | 
 
 | 
 
 | 
    9,059
 | 
 
 | 
 
 | 
 
 | 
    27
 | 
    %
 | 
 
 | 
 
 | 
    (34,452
 | 
    )
 | 
 
 | 
 
 | 
    (50
 | 
    )%
 | 
| 
 
    Other reconciling items(11)
 
 | 
 
 | 
 
 | 
    (105,393
 | 
    )
 | 
 
 | 
 
 | 
    (196,844
 | 
    )
 | 
 
 | 
 
 | 
    (167,831
 | 
    )
 | 
 
 | 
 
 | 
    91,451
 | 
 
 | 
 
 | 
 
 | 
    46
 | 
    %
 | 
 
 | 
 
 | 
    (29,013
 | 
    )
 | 
 
 | 
 
 | 
    (17
 | 
    )%
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total
 
 | 
 
 | 
    $
 | 
    655,433
 | 
 
 | 
 
 | 
    $
 | 
    421,904
 | 
 
 | 
 
 | 
    $
 | 
    1,098,512
 | 
 
 | 
 
 | 
    $
 | 
    233,529
 | 
 
 | 
 
 | 
 
 | 
    55
 | 
    %
 | 
 
 | 
    $
 | 
    (676,608
 | 
    )
 | 
 
 | 
 
 | 
    (62
 | 
    %)
 | 
| 
 
    Interest expense
 
 | 
 
 | 
 
 | 
    (273,044
 | 
    )
 | 
 
 | 
 
 | 
    (266,039
 | 
    )
 | 
 
 | 
 
 | 
    (196,718
 | 
    )
 | 
 
 | 
 
 | 
    (7,005
 | 
    )
 | 
 
 | 
 
 | 
    (3
 | 
    )%
 | 
 
 | 
 
 | 
    (69,321
 | 
    )
 | 
 
 | 
 
 | 
    (35
 | 
    )%
 | 
| 
 
    Investment income (loss)
 
 | 
 
 | 
 
 | 
    7,648
 | 
 
 | 
 
 | 
 
 | 
    25,599
 | 
 
 | 
 
 | 
 
 | 
    21,412
 | 
 
 | 
 
 | 
 
 | 
    (17,951
 | 
    )
 | 
 
 | 
 
 | 
    (70
 | 
    )%
 | 
 
 | 
 
 | 
    4,187
 | 
 
 | 
 
 | 
 
 | 
    20
 | 
    %
 | 
| 
 
    Gains (losses) on sales and retirements of long-lived assets and
    other income (expense), net
 
 | 
 
 | 
 
 | 
    (47,060
 | 
    )
 | 
 
 | 
 
 | 
    (12,559
 | 
    )
 | 
 
 | 
 
 | 
    (15,829
 | 
    )
 | 
 
 | 
 
 | 
    (34,501
 | 
    )
 | 
 
 | 
 
 | 
    (275
 | 
    )%
 | 
 
 | 
 
 | 
    3,270
 | 
 
 | 
 
 | 
 
 | 
    21
 | 
    %
 | 
| 
 
    Impairments and other charges(12)
 
 | 
 
 | 
 
 | 
    (260,931
 | 
    )
 | 
 
 | 
 
 | 
    (330,976
 | 
    )
 | 
 
 | 
 
 | 
    (176,123
 | 
    )
 | 
 
 | 
 
 | 
    70,045
 | 
 
 | 
 
 | 
 
 | 
    21
 | 
    %
 | 
 
 | 
 
 | 
    (154,853
 | 
    )
 | 
 
 | 
 
 | 
    (88
 | 
    )%
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Income (loss) from continuing operations before income taxes
 
 | 
 
 | 
 
 | 
    82,046
 | 
 
 | 
 
 | 
 
 | 
    (162,071
 | 
    )
 | 
 
 | 
 
 | 
    731,254
 | 
 
 | 
 
 | 
 
 | 
    244,117
 | 
 
 | 
 
 | 
 
 | 
    151
 | 
    %
 | 
 
 | 
 
 | 
    (893,325
 | 
    )
 | 
 
 | 
 
 | 
    (122
 | 
    )%
 | 
| 
 
    Income tax expense (benefit)
 
 | 
 
 | 
 
 | 
    (24,814
 | 
    )
 | 
 
 | 
 
 | 
    (133,803
 | 
    )
 | 
 
 | 
 
 | 
    209,660
 | 
 
 | 
 
 | 
 
 | 
    108,989
 | 
 
 | 
 
 | 
 
 | 
    81
 | 
    %
 | 
 
 | 
 
 | 
    (343,463
 | 
    )
 | 
 
 | 
 
 | 
    (164
 | 
    )%
 | 
| 
 
    Subsidiary preferred stock dividend
 
 | 
 
 | 
 
 | 
    750
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    750
 | 
 
 | 
 
 | 
 
 | 
    100
 | 
    %
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Income (loss) from continuing operations, net of tax
 
 | 
 
 | 
 
 | 
    106,110
 | 
 
 | 
 
 | 
 
 | 
    (28,268
 | 
    )
 | 
 
 | 
 
 | 
    521,594
 | 
 
 | 
 
 | 
 
 | 
    134,378
 | 
 
 | 
 
 | 
 
 | 
    475
 | 
    %
 | 
 
 | 
 
 | 
    (549,862
 | 
    )
 | 
 
 | 
 
 | 
    (105
 | 
    )%
 | 
| 
 
    Income (loss) from discontinued operations, net of tax
 
 | 
 
 | 
 
 | 
    (11,330
 | 
    )
 | 
 
 | 
 
 | 
    (57,620
 | 
    )
 | 
 
 | 
 
 | 
    (41,930
 | 
    )
 | 
 
 | 
 
 | 
    46,290
 | 
 
 | 
 
 | 
 
 | 
    80
 | 
    %
 | 
 
 | 
 
 | 
    (15,690
 | 
    )
 | 
 
 | 
 
 | 
    (37
 | 
    )%
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net income (loss)
 
 | 
 
 | 
 
 | 
    94,780
 | 
 
 | 
 
 | 
 
 | 
    (85,888
 | 
    )
 | 
 
 | 
 
 | 
    479,664
 | 
 
 | 
 
 | 
 
 | 
    180,668
 | 
 
 | 
 
 | 
 
 | 
    210
 | 
    %
 | 
 
 | 
 
 | 
    (565,552
 | 
    )
 | 
 
 | 
 
 | 
    (118
 | 
    )%
 | 
| 
 
    Less: Net (income) loss attributable to noncontrolling interest
 
 | 
 
 | 
 
 | 
    (85
 | 
    )
 | 
 
 | 
 
 | 
    342
 | 
 
 | 
 
 | 
 
 | 
    (3,927
 | 
    )
 | 
 
 | 
 
 | 
    (427
 | 
    )
 | 
 
 | 
 
 | 
    (125
 | 
    )%
 | 
 
 | 
 
 | 
    4,269
 | 
 
 | 
 
 | 
 
 | 
    109
 | 
    %
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net income (loss) attributable to Nabors
 
 | 
 
 | 
    $
 | 
    94,695
 | 
 
 | 
 
 | 
    $
 | 
    (85,546
 | 
    )
 | 
 
 | 
    $
 | 
    475,737
 | 
 
 | 
 
 | 
    $
 | 
    180,241
 | 
 
 | 
 
 | 
 
 | 
    211
 | 
    %
 | 
 
 | 
    $
 | 
    (561,283
 | 
    )
 | 
 
 | 
 
 | 
    (118
 | 
    )%
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    
    33
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
 
 | 
 
 | 
    Increase/(Decrease)
 | 
 
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
 
 | 
    2008
 | 
 
 | 
 
 | 
    2010 to 2009
 | 
 
 | 
 
 | 
    2009 to 2008
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands, except percentages and rig activity)
 | 
 
 | 
|  
 | 
| 
 
    Rig activity:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Rig years: (13)
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    U.S. Lower 48 Land Drilling
 
 | 
 
 | 
 
 | 
    174.5
 | 
 
 | 
 
 | 
 
 | 
    149.4
 | 
 
 | 
 
 | 
 
 | 
    247.9
 | 
 
 | 
 
 | 
 
 | 
    25.1
 | 
 
 | 
 
 | 
 
 | 
    17
 | 
    %
 | 
 
 | 
 
 | 
    (98.5
 | 
    )
 | 
 
 | 
 
 | 
    (40
 | 
    )%
 | 
| 
 
    U.S. Offshore
 
 | 
 
 | 
 
 | 
    9.4
 | 
 
 | 
 
 | 
 
 | 
    11.0
 | 
 
 | 
 
 | 
 
 | 
    17.6
 | 
 
 | 
 
 | 
 
 | 
    (1.6
 | 
    )
 | 
 
 | 
 
 | 
    (15
 | 
    )%
 | 
 
 | 
 
 | 
    (6.6
 | 
    )
 | 
 
 | 
 
 | 
    (38
 | 
    )%
 | 
| 
 
    Alaska
 
 | 
 
 | 
 
 | 
    7.4
 | 
 
 | 
 
 | 
 
 | 
    10.0
 | 
 
 | 
 
 | 
 
 | 
    10.9
 | 
 
 | 
 
 | 
 
 | 
    (2.6
 | 
    )
 | 
 
 | 
 
 | 
    (26
 | 
    )%
 | 
 
 | 
 
 | 
    (0.9
 | 
    )
 | 
 
 | 
 
 | 
    (8
 | 
    )%
 | 
| 
 
    Canada
 
 | 
 
 | 
 
 | 
    29.8
 | 
 
 | 
 
 | 
 
 | 
    19.7
 | 
 
 | 
 
 | 
 
 | 
    35.5
 | 
 
 | 
 
 | 
 
 | 
    10.1
 | 
 
 | 
 
 | 
 
 | 
    51
 | 
    %
 | 
 
 | 
 
 | 
    (15.8
 | 
    )
 | 
 
 | 
 
 | 
    (45
 | 
    )%
 | 
| 
 
    International(14)
 
 | 
 
 | 
 
 | 
    97.8
 | 
 
 | 
 
 | 
 
 | 
    100.2
 | 
 
 | 
 
 | 
 
 | 
    120.5
 | 
 
 | 
 
 | 
 
 | 
    (2.4
 | 
    )
 | 
 
 | 
 
 | 
    (2
 | 
    )%
 | 
 
 | 
 
 | 
    (20.3
 | 
    )
 | 
 
 | 
 
 | 
    (17
 | 
    )%
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total rig years
 
 | 
 
 | 
 
 | 
    318.9
 | 
 
 | 
 
 | 
 
 | 
    290.3
 | 
 
 | 
 
 | 
 
 | 
    432.4
 | 
 
 | 
 
 | 
 
 | 
    28.6
 | 
 
 | 
 
 | 
 
 | 
    10
 | 
    %
 | 
 
 | 
 
 | 
    (142.1
 | 
    )
 | 
 
 | 
 
 | 
    (33
 | 
    )%
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Rig hours: (15)
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    U.S. Land Well-servicing
 
 | 
 
 | 
 
 | 
    643,813
 | 
 
 | 
 
 | 
 
 | 
    590,878
 | 
 
 | 
 
 | 
 
 | 
    1,090,511
 | 
 
 | 
 
 | 
 
 | 
    52,935
 | 
 
 | 
 
 | 
 
 | 
    9
 | 
    %
 | 
 
 | 
 
 | 
    (499,633
 | 
    )
 | 
 
 | 
 
 | 
    (46
 | 
    )%
 | 
| 
 
    Canada Well-servicing
 
 | 
 
 | 
 
 | 
    172,589
 | 
 
 | 
 
 | 
 
 | 
    143,824
 | 
 
 | 
 
 | 
 
 | 
    248,032
 | 
 
 | 
 
 | 
 
 | 
    28,765
 | 
 
 | 
 
 | 
 
 | 
    20
 | 
    %
 | 
 
 | 
 
 | 
    (104,208
 | 
    )
 | 
 
 | 
 
 | 
    (42
 | 
    )%
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total rig hours
 
 | 
 
 | 
 
 | 
    816,402
 | 
 
 | 
 
 | 
 
 | 
    734,702
 | 
 
 | 
 
 | 
 
 | 
    1,338,543
 | 
 
 | 
 
 | 
 
 | 
    81,700
 | 
 
 | 
 
 | 
 
 | 
    11
 | 
    %
 | 
 
 | 
 
 | 
    (603,841
 | 
    )
 | 
 
 | 
 
 | 
    (45
 | 
    )%
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 
     | 
     | 
     | 
    | 
    (1)  | 
     | 
    
    All information present the operating activities of oil and gas
    assets in the Horn River basin in Canada and in the Llanos basin
    in Colombia as discontinued operations. | 
|   | 
    | 
    (2)  | 
     | 
    
    These segments include our drilling, workover and well-servicing
    and pressure pumping operations, on land and offshore. | 
|   | 
    | 
    (3)  | 
     | 
    
    Includes operating results of the Superior Merger after
    September 10, 2010. | 
|   | 
    | 
    (4)  | 
     | 
    
    Includes earnings (losses), net from unconsolidated affiliates,
    accounted for using the equity method, of $6.9 million,
    $9.7 million and $5.8 million for the years ended
    December 31, 2010, 2009 and 2008, respectively. | 
|   | 
    | 
    (5)  | 
     | 
    
    Represents our oil and gas exploration, development and
    production operations. Includes our proportionate share of
    full-cost ceiling test writedowns recorded by our unconsolidated
    U.S. oil and gas joint venture of $(189.3) million and
    $(207.3) million for the years ended December 31, 2009
    and 2008, respectively. | 
|   | 
    | 
    (6)  | 
     | 
    
    Includes earnings (losses), net from unconsolidated affiliates,
    accounted for using the equity method, of $18.7 million,
    $(182.6) million and $(204.1) million for the years
    ended December 31, 2010, 2009 and 2008, respectively.
    Additional information is provided in Note 24 
    Supplemental Information on Oil and Gas Exploration and
    Production Activities in Part II, Item 8. 
    Financial Statements and Supplementary Data. | 
|   | 
    | 
    (7)  | 
     | 
    
    Includes our drilling technology and top drive manufacturing,
    directional drilling, rig instrumentation and software, and
    construction and logistics operations. | 
|   | 
    | 
    (8)  | 
     | 
    
    Includes earnings (losses), net from unconsolidated affiliates,
    accounted for using the equity method, of $7.7 million,
    $17.5 million and $5.8 million for the years ended
    December 31, 2010, 2009 and 2008, respectively. | 
|   | 
    | 
    (9)  | 
     | 
    
    Represents the elimination of inter-segment transactions. | 
|   | 
    | 
    (10)  | 
     | 
    
    Adjusted income (loss) derived from operating activities is
    computed by subtracting direct costs, general and administrative
    expenses, depreciation and amortization, and depletion expense
    from Operating revenues and then adding
    Earnings (losses) from unconsolidated affiliates.
    These amounts should not be used as a substitute for those
    amounts reported under GAAP. However, management evaluates the
    performance of our business units and the consolidated company
    based on several criteria, including adjusted income (loss)
    derived from operating activities, because it believes that
    these financial measures are an accurate reflection of our
    ongoing profitability. A reconciliation of this non-GAAP measure
    to income (loss) from continuing operations before income taxes,
    which is a GAAP measure, is provided within the above table. | 
|   | 
    | 
    (11)  | 
     | 
    
    Represents the elimination of inter-segment transactions and
    unallocated corporate expenses. | 
    34
 
 
     | 
     | 
     | 
    | 
    (12)  | 
     | 
    
    Represents impairments and other charges recorded during the
    years ended December 31, 2010, 2009 and 2008, respectively. | 
|   | 
    | 
    (13)  | 
     | 
    
    Excludes well-servicing rigs, which are measured in rig hours.
    Includes our equivalent percentage ownership of rigs owned by
    unconsolidated affiliates. Rig years represent a measure of the
    number of equivalent rigs operating during a given period. For
    example, one rig operating 182.5 days during a
    365-day
    period represents 0.5 rig years. | 
|   | 
    | 
    (14)  | 
     | 
    
    International rig years include our equivalent percentage
    ownership of rigs owned by unconsolidated affiliates which
    totaled 2.2 years, 2.5 years and 3.5 years during
    the years ended December 31, 2010, 2009 and 2008,
    respectively. | 
|   | 
    | 
    (15)  | 
     | 
    
    Rig hours represents the number of hours that our well-servicing
    rig fleet operated during the year. | 
 
    Segment
    Results of Operations
 
    Contract
    Drilling
 
    Our Contract Drilling operating segments contain one or more of
    the following operations: drilling, workover and well-servicing
    and pressure pumping, on land and offshore.
 
    U.S. Lower 48 Land Drilling.  The results
    of operations for this reportable segment are as follows:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
 
 | 
    Increase/(Decrease)
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
    2009
 | 
 
 | 
    2008
 | 
 
 | 
    2010 to 2009
 | 
 
 | 
    2009 to 2008
 | 
| 
 
 | 
 
 | 
    (In thousands, except percentages and rig activity)
 | 
|  
 | 
| 
 
    Operating revenues
 
 | 
 
 | 
    $
 | 
    1,294,853
 | 
 
 | 
 
 | 
    $
 | 
    1,082,531
 | 
 
 | 
 
 | 
    $
 | 
    1,878,441
 | 
 
 | 
 
 | 
    $
 | 
    212,322
 | 
 
 | 
 
 | 
 
 | 
    20
 | 
    %
 | 
 
 | 
    $
 | 
    (795,910
 | 
    )
 | 
 
 | 
 
 | 
    (42
 | 
    )%
 | 
| 
 
    Adjusted income derived from operating activities
 
 | 
 
 | 
    $
 | 
    274,215
 | 
 
 | 
 
 | 
    $
 | 
    294,679
 | 
 
 | 
 
 | 
    $
 | 
    628,579
 | 
 
 | 
 
 | 
    $
 | 
    (20,464
 | 
    )
 | 
 
 | 
 
 | 
    (7
 | 
    )%
 | 
 
 | 
    $
 | 
    (333,900
 | 
    )
 | 
 
 | 
 
 | 
    (53
 | 
    )%
 | 
| 
 
    Rig years
 
 | 
 
 | 
 
 | 
    174.5
 | 
 
 | 
 
 | 
 
 | 
    149.4
 | 
 
 | 
 
 | 
 
 | 
    247.9
 | 
 
 | 
 
 | 
 
 | 
    25.1
 | 
 
 | 
 
 | 
 
 | 
    17
 | 
    %
 | 
 
 | 
 
 | 
    (98.5
 | 
    )
 | 
 
 | 
 
 | 
    (40
 | 
    )%
 | 
 
    Operating revenues increased from 2009 to 2010 primarily due to
    higher average dayrates and utilization. The increase was
    partially offset by the decrease in early contract termination
    revenue. Operating revenues related to early contract
    termination during 2010 included $23.2 million as compared
    to $108.5 million in 2009.
 
    Adjusted income derived from operating activities decreased from
    2009 to 2010 due to an increase in operating costs associated
    with the increased drilling activity. Operating results
    continued to be negatively impacted by higher depreciation
    expense related to capital expansion projects completed in
    recent years.
 
    Operating results decreased from 2008 to 2009 primarily due to a
    decline in drilling activity, driven by lower natural gas prices
    beginning in the fourth quarter of 2008 and diminished demand as
    customers released rigs and delayed drilling projects in
    response to the significant drop in natural gas prices and the
    tightening of the credit markets.
 
    U.S. Land Well-servicing.  The results of
    operations for this reportable segment are as follows:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
 
 | 
    Increase/(Decrease)
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
    2009
 | 
 
 | 
    2008
 | 
 
 | 
    2010 to 2009
 | 
 
 | 
    2009 to 2008
 | 
| 
 
 | 
 
 | 
    (In thousands, except percentages and rig activity)
 | 
|  
 | 
| 
 
    Operating revenues
 
 | 
 
 | 
    $
 | 
    444,665
 | 
 
 | 
 
 | 
    $
 | 
    412,243
 | 
 
 | 
 
 | 
    $
 | 
    758,510
 | 
 
 | 
 
 | 
    $
 | 
    32,422
 | 
 
 | 
 
 | 
 
 | 
    8
 | 
    %
 | 
 
 | 
    $
 | 
    (346,267
 | 
    )
 | 
 
 | 
 
 | 
    (46
 | 
    )%
 | 
| 
 
    Adjusted income derived from operating activities
 
 | 
 
 | 
    $
 | 
    31,597
 | 
 
 | 
 
 | 
    $
 | 
    28,950
 | 
 
 | 
 
 | 
    $
 | 
    148,626
 | 
 
 | 
 
 | 
    $
 | 
    2,647
 | 
 
 | 
 
 | 
 
 | 
    9
 | 
    %
 | 
 
 | 
    $
 | 
    (119,676
 | 
    )
 | 
 
 | 
 
 | 
    (81
 | 
    )%
 | 
| 
 
    Rig hours
 
 | 
 
 | 
 
 | 
    643,813
 | 
 
 | 
 
 | 
 
 | 
    590,878
 | 
 
 | 
 
 | 
 
 | 
    1,090,511
 | 
 
 | 
 
 | 
 
 | 
    52,935
 | 
 
 | 
 
 | 
 
 | 
    9
 | 
    %
 | 
 
 | 
 
 | 
    (499,633
 | 
    )
 | 
 
 | 
 
 | 
    (46
 | 
    )%
 | 
 
    Operating results increased from 2009 to 2010 primarily due to
    an increase in rig utilization driven by higher oil prices. The
    increase in operating results also reflects lower general and
    administrative costs and depreciation expense.
 
    Operating results decreased from 2008 to 2009 primarily due to
    lower rig utilization and price erosion, driven by lower
    customer demand for our services due to relatively lower oil
    prices caused by the
    
    35
 
    U.S. economic recession and reduced end product demand.
    Operating results were further negatively impacted by higher
    depreciation expense related to capital expansion projects
    completed in recent years.
 
    Pressure Pumping.  The results of operations
    for this reportable segment were as follows:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
 
 | 
    Increase/(Decrease)
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
    2009
 | 
 
 | 
    2008
 | 
 
 | 
    2010 to 2009
 | 
 
 | 
    2009 to 2008
 | 
| 
 
 | 
 
 | 
    (In thousands, except percentages and rig activity)
 | 
|  
 | 
| 
 
    Operating revenues
 
 | 
 
 | 
    $
 | 
    321,295
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    321,295
 | 
 
 | 
 
 | 
 
 | 
    100
 | 
    %
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Adjusted income derived from operating activities
 
 | 
 
 | 
    $
 | 
    66,651
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    66,651
 | 
 
 | 
 
 | 
 
 | 
    100
 | 
    %
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
    Operating results reflecting our acquisition of Superior are
    presented above for the period September 10, 2010 through
    December 31, 2010. See Note 7  Acquisitions
    and Divestitures in Part II, Item 8.  Financial
    Statements and Supplementary Data.
 
    U.S. Offshore.  The results of operations
    for this reportable segment are as follows:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
 
 | 
    Increase/(Decrease)
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
    2009
 | 
 
 | 
    2008
 | 
 
 | 
    2010 to 2009
 | 
 
 | 
    2009 to 2008
 | 
| 
 
 | 
 
 | 
    (In thousands, except percentages and rig activity)
 | 
|  
 | 
| 
 
    Operating revenues
 
 | 
 
 | 
    $
 | 
    123,761
 | 
 
 | 
 
 | 
    $
 | 
    157,305
 | 
 
 | 
 
 | 
    $
 | 
    252,529
 | 
 
 | 
 
 | 
    $
 | 
    (33,544
 | 
    )
 | 
 
 | 
 
 | 
    (21
 | 
    )%
 | 
 
 | 
    $
 | 
    (95,224
 | 
    )
 | 
 
 | 
 
 | 
    (38
 | 
    )%
 | 
| 
 
    Adjusted income derived from operating activities
 
 | 
 
 | 
    $
 | 
    9,245
 | 
 
 | 
 
 | 
    $
 | 
    30,508
 | 
 
 | 
 
 | 
    $
 | 
    59,179
 | 
 
 | 
 
 | 
    $
 | 
    (21,263
 | 
    )
 | 
 
 | 
 
 | 
    (70
 | 
    )%
 | 
 
 | 
    $
 | 
    (28,671
 | 
    )
 | 
 
 | 
 
 | 
    (48
 | 
    )%
 | 
| 
 
    Rig years
 
 | 
 
 | 
 
 | 
    9.4
 | 
 
 | 
 
 | 
 
 | 
    11.0
 | 
 
 | 
 
 | 
 
 | 
    17.6
 | 
 
 | 
 
 | 
 
 | 
    (1.6
 | 
    )
 | 
 
 | 
 
 | 
    (15
 | 
    )%
 | 
 
 | 
 
 | 
    (6.6
 | 
    )
 | 
 
 | 
 
 | 
    (38
 | 
    )%
 | 
 
    The decrease in operating results from 2009 to 2010 primarily
    resulted from receiving standby rates and lower utilization for
    the
    MODS®
    rigs,
    SuperSundownertm
    platform rigs and
    Sundowner®
    platform rigs. Drilling activities significantly declined as our
    customers suspended their operations in the Gulf of Mexico,
    largely as a result of their inability to procure government
    permits.
 
    The decrease in operating results from 2008 to 2009 primarily
    resulted from lower average dayrates and utilization for the
    SuperSundownertm
    platform rigs, workover
    jack-up
    rigs, barge drilling and workover rigs, and
    Sundowner®
    platform rigs, partially offset by higher utilization of our
    MODS®
    rigs inclusive of a significant term contract for a
    MODS®
    rig deployed in January 2009.
 
    Alaska.  The results of operations for this
    reportable segment are as follows:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
 
 | 
 
 | 
    Increase/(Decrease)
 | 
 
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
 
 | 
    2008
 | 
 
 | 
 
 | 
    2010 to 2009
 | 
 
 | 
 
 | 
    2009 to 2008
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands, except percentages and rig activity)
 | 
 
 | 
|  
 | 
| 
 
    Operating revenues and Earnings from unconsolidated affiliates
 
 | 
 
 | 
    $
 | 
    179,218
 | 
 
 | 
 
 | 
    $
 | 
    204,407
 | 
 
 | 
 
 | 
    $
 | 
    184,243
 | 
 
 | 
 
 | 
    $
 | 
    (25,189
 | 
    )
 | 
 
 | 
 
 | 
    (12
 | 
    )%
 | 
 
 | 
    $
 | 
    20,164
 | 
 
 | 
 
 | 
 
 | 
    11
 | 
    %
 | 
| 
 
    Adjusted income derived from operating activities
 
 | 
 
 | 
    $
 | 
    51,896
 | 
 
 | 
 
 | 
    $
 | 
    62,742
 | 
 
 | 
 
 | 
    $
 | 
    52,603
 | 
 
 | 
 
 | 
    $
 | 
    (10,846
 | 
    )
 | 
 
 | 
 
 | 
    (17
 | 
    )%
 | 
 
 | 
    $
 | 
    10,139
 | 
 
 | 
 
 | 
 
 | 
    19
 | 
    %
 | 
| 
 
    Rig years
 
 | 
 
 | 
 
 | 
    7.4
 | 
 
 | 
 
 | 
 
 | 
    10.0
 | 
 
 | 
 
 | 
 
 | 
    10.9
 | 
 
 | 
 
 | 
 
 | 
    (2.6
 | 
    )
 | 
 
 | 
 
 | 
    (26
 | 
    )%
 | 
 
 | 
 
 | 
    (0.9
 | 
    )
 | 
 
 | 
 
 | 
    (8
 | 
    %)
 | 
 
    The decrease in operating results from 2009 to 2010 was
    primarily due to lower average dayrates and drilling activity.
    While drilling activity levels decreased significantly during
    2010, operating results decreased only slightly due to an
    acceleration of deferred revenues from a significant terminating
    contract.
 
    The increase in operating results from 2008 to 2009 was
    primarily due to increases in average dayrates and drilling
    activity. Although drilling activity levels decreased slightly
    during 2009, operating results reflect the higher average
    margins as a result of the addition of some high specification
    rig work. The increase during 2009 was partially offset by
    higher operating costs and increased depreciation expense as
    well as increased labor and repair and maintenance costs in 2009
    as compared to 2008.
    
    36
 
    Canada.  The results of operations for this
    reportable segment are as follows:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
 
 | 
    Increase/(Decrease)
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
    2009
 | 
 
 | 
    2008
 | 
 
 | 
    2010 to 2009
 | 
 
 | 
    2009 to 2008
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands, except percentages and rig activity)
 | 
|  
 | 
| 
 
    Operating revenues and Earnings from unconsolidated affiliates
 
 | 
 
 | 
    $
 | 
    389,229
 | 
 
 | 
 
 | 
    $
 | 
    298,653
 | 
 
 | 
 
 | 
    $
 | 
    502,695
 | 
 
 | 
 
 | 
    $
 | 
    90,576
 | 
 
 | 
 
 | 
 
 | 
    30
 | 
    %
 | 
 
 | 
    $
 | 
    (204,042
 | 
    )
 | 
 
 | 
 
 | 
    (41
 | 
    )%
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Adjusted income (loss) derived from operating activities
 
 | 
 
 | 
    $
 | 
    22,970
 | 
 
 | 
 
 | 
    $
 | 
    (7,019
 | 
    )
 | 
 
 | 
    $
 | 
    61,040
 | 
 
 | 
 
 | 
    $
 | 
    29,989
 | 
 
 | 
 
 | 
 
 | 
    427
 | 
    %
 | 
 
 | 
    $
 | 
    (68,059
 | 
    )
 | 
 
 | 
 
 | 
    (111
 | 
    )%
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Rig years  Drilling
 
 | 
 
 | 
 
 | 
    29.8
 | 
 
 | 
 
 | 
 
 | 
    19.7
 | 
 
 | 
 
 | 
 
 | 
    35.5
 | 
 
 | 
 
 | 
 
 | 
    10.1
 | 
 
 | 
 
 | 
 
 | 
    51
 | 
    %
 | 
 
 | 
 
 | 
    (15.8
 | 
    )
 | 
 
 | 
 
 | 
    (45
 | 
    )%
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Rig hours  Well-servicing
 
 | 
 
 | 
 
 | 
    172,589
 | 
 
 | 
 
 | 
 
 | 
    143,824
 | 
 
 | 
 
 | 
 
 | 
    248,032
 | 
 
 | 
 
 | 
 
 | 
    28,765
 | 
 
 | 
 
 | 
 
 | 
    20
 | 
    %
 | 
 
 | 
 
 | 
    (104,208
 | 
    )
 | 
 
 | 
 
 | 
    (42
 | 
    %)
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
    Operating results increased from 2009 to 2010 primarily as a
    result of an overall increase in drilling and well-servicing
    activity, which offset the decline in average drilling dayrates
    and well-servicing hourly rates. The increased drilling activity
    in Western Canada is the result of renewed interest in oil
    exploration supported by sustained improved oil prices. The
    well-servicing hourly rate decreased during 2010 as a result of
    customer discounts to maintain market share. Our operating
    results were also positively impacted during 2010 by cost
    reduction efforts, mainly in general and administrative expenses.
 
    Operating results decreased from 2008 to 2009 primarily as a
    result of an overall decrease in drilling and well-servicing
    activity due to lower natural gas prices driving a significant
    decline of customer demand for drilling and well-servicing
    operations. Our operating results for 2009 were further
    negatively impacted by the economic uncertainty in the Canadian
    drilling market and financial market instability. The Canadian
    dollar began 2009 in a weak position versus the
    U.S. dollar, during a period of time when drilling and
    well-servicing activity was typically at its seasonal peak,
    which also had an overall negative impact on operating results.
    These decreases in operating results were partially offset by
    cost reductions in direct costs, general and administrative
    expenses and depreciation.
 
    International.  The results of operations for
    this reportable segment are as follows:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
 
 | 
    Increase/(Decrease)
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
    2009
 | 
 
 | 
    2008
 | 
 
 | 
    2010 to 2009
 | 
 
 | 
    2009 to 2008
 | 
| 
 
 | 
 
 | 
    (In thousands, except percentages and rig activity)
 | 
|  
 | 
| 
 
    Operating revenues and Earnings from unconsolidated affiliates
 
 | 
 
 | 
    $
 | 
    1,093,608
 | 
 
 | 
 
 | 
    $
 | 
    1,265,097
 | 
 
 | 
 
 | 
    $
 | 
    1,372,168
 | 
 
 | 
 
 | 
    $
 | 
    (171,489
 | 
    )
 | 
 
 | 
 
 | 
    (14
 | 
    )%
 | 
 
 | 
    $
 | 
    (107,071
 | 
    )
 | 
 
 | 
 
 | 
    (8
 | 
    )%
 | 
| 
 
    Adjusted income derived from operating activities
 
 | 
 
 | 
    $
 | 
    254,744
 | 
 
 | 
 
 | 
    $
 | 
    365,566
 | 
 
 | 
 
 | 
    $
 | 
    407,675
 | 
 
 | 
 
 | 
    $
 | 
    (110,822
 | 
    )
 | 
 
 | 
 
 | 
    (30
 | 
    )%
 | 
 
 | 
    $
 | 
    (42,109
 | 
    )
 | 
 
 | 
 
 | 
    (10
 | 
    )%
 | 
| 
 
    Rig years
 
 | 
 
 | 
 
 | 
    97.8
 | 
 
 | 
 
 | 
 
 | 
    100.2
 | 
 
 | 
 
 | 
 
 | 
    120.5
 | 
 
 | 
 
 | 
 
 | 
    (2.4
 | 
    )
 | 
 
 | 
 
 | 
    (2
 | 
    )%
 | 
 
 | 
 
 | 
    (20.3
 | 
    )
 | 
 
 | 
 
 | 
    (17
 | 
    )%
 | 
 
    The decrease in operating results from 2009 to 2010 resulted
    primarily from
    year-over-year
    decreases in average dayrates and lower utilization of rigs in
    Saudi Arabia, Mexico, Kazakhstan, and Oman, driven by changes in
    our customers drilling programs and longer lead times for
    formalization of project requirements in our key markets.
    Operating results were further negatively impacted by higher
    depreciation expense related to capital expansion projects
    completed in recent years.
 
    The decrease in operating results from 2008 to 2009 resulted
    primarily from
    year-over-year
    decreases in average dayrates and lower utilization of rigs in
    Mexico, Libya, Argentina and Colombia, driven by weakening
    customer demand for drilling services stemming from the drop in
    oil prices in the fourth quarter of 2008 which continued
    throughout 2009. Operating results were further negatively
    impacted by higher depreciation expense related to capital
    expansion projects completed in recent years. These decreases
    were partially offset by higher average dayrates from two
    jack-up rigs
    deployed in Saudi Arabia, increases in average dayrates for our
    new and incremental rigs added and deployed during 2008 and a
    start-up
    floating, drilling, production, storage and offloading vessel
    off the coast of the Republic of the Congo.
    
    37
 
    Oil and Gas.  The results of operations for
    this reportable segment are as follows:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
 
 | 
    Increase/(Decrease)
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
    2009
 | 
 
 | 
    2008
 | 
 
 | 
    2010 to 2009
 | 
 
 | 
    2009 to 2008
 | 
| 
 
 | 
 
 | 
    (In thousands, except percentages)
 | 
|  
 | 
| 
 
    Operating revenues and Earnings (losses) from unconsolidated
    affiliates
 
 | 
 
 | 
    $
 | 
    40,611
 | 
 
 | 
 
 | 
    $
 | 
    (158,780
 | 
    )
 | 
 
 | 
    $
 | 
    (118,533
 | 
    )
 | 
 
 | 
    $
 | 
    199,391
 | 
 
 | 
 
 | 
 
 | 
    126
 | 
    %
 | 
 
 | 
    $
 | 
    (40,247
 | 
    )
 | 
 
 | 
 
 | 
    (34
 | 
    )%
 | 
| 
 
    Adjusted income (loss) derived from operating activities
 
 | 
 
 | 
    $
 | 
    6,329
 | 
 
 | 
 
 | 
    $
 | 
    (190,798
 | 
    )
 | 
 
 | 
    $
 | 
    (159,931
 | 
    )
 | 
 
 | 
    $
 | 
    197,127
 | 
 
 | 
 
 | 
 
 | 
    103
 | 
    %
 | 
 
 | 
    $
 | 
    (30,867
 | 
    )
 | 
 
 | 
 
 | 
    (19
 | 
    )%
 | 
 
    Our operating results increased from 2009 to 2010 primarily
    because our unconsolidated U.S. oil and gas joint venture
    recorded a full-cost ceiling test writedown during 2009, of
    which our proportionate share totaled $189.3 million. Our
    proportionate share of the full-cost ceiling writedowns recorded
    by our other unconsolidated oil and gas joint ventures, SMVP and
    Remora, have been reclassified to discontinued operations. These
    writedowns resulted from the application of the full-cost method
    of accounting for costs related to oil and natural gas
    properties. The full-cost ceiling test limits the carrying value
    of the capitalized cost of the properties to the present value
    of future net revenues attributable to proved oil and natural
    gas reserves, discounted at 10%, plus the lower of cost or
    market value of unproved properties. The full-cost ceiling test
    was evaluated using the
    12-month
    average commodity price as required by the revised SEC rules.
    Operating results for our U.S. oil and gas joint venture,
    excluding the full-cost ceiling test writedown, improved from
    2009 to 2010.
 
    Our operating results decreased from 2008 to 2009 primarily as a
    result of the full-cost ceiling test writedown recorded during
    2009 discussed above. Operating results further decreased from
    2008 to 2009 due to declines in natural gas prices and
    production volumes. Additionally, operating results for 2008
    included a $12.3 million gain recorded on the sale of
    leasehold interests.
 
    Additional information is provided in Notes 21 
    Discontinued Operations and 24  Supplemental
    Information on Oil and Gas Exploration and Production Activities
    in Part II, Item 8.  Financial Statements
    and Supplementary Data.
 
    Other
    Operating Segments
 
    These operations include our drilling technology and top-drive
    manufacturing, directional drilling, rig instrumentation and
    software, and construction and logistics operations. The results
    of operations for these operating segments are as follows:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
 
 | 
    Increase/(Decrease)
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
    2009
 | 
 
 | 
    2008
 | 
 
 | 
    2010 to 2009
 | 
 
 | 
    2009 to 2008
 | 
| 
 
 | 
 
 | 
    (In thousands, except percentages)
 | 
|  
 | 
| 
 
    Operating revenues and Earnings from unconsolidated affiliates
 
 | 
 
 | 
    $
 | 
    456,893
 | 
 
 | 
 
 | 
    $
 | 
    446,282
 | 
 
 | 
 
 | 
    $
 | 
    683,186
 | 
 
 | 
 
 | 
    $
 | 
    10,611
 | 
 
 | 
 
 | 
 
 | 
    2
 | 
    %
 | 
 
 | 
    $
 | 
    (236,904
 | 
    )
 | 
 
 | 
 
 | 
    (35
 | 
    )%
 | 
| 
 
    Adjusted income derived from operating activities
 
 | 
 
 | 
    $
 | 
    43,179
 | 
 
 | 
 
 | 
    $
 | 
    34,120
 | 
 
 | 
 
 | 
    $
 | 
    68,572
 | 
 
 | 
 
 | 
    $
 | 
    9,059
 | 
 
 | 
 
 | 
 
 | 
    27
 | 
    %
 | 
 
 | 
    $
 | 
    (34,452
 | 
    )
 | 
 
 | 
 
 | 
    (50
 | 
    %)
 | 
 
    The increase in operating results from 2009 to 2010 primarily
    resulted from higher demand in the United States and Canada
    drilling markets for rig instrumentation and data collection
    services from oil and gas exploration companies and higher
    third-party rental and rigwatch units, which generate higher
    margins, partially offset by a continued decline in customer
    demand for our construction and logistics services in Alaska.
 
    The decreases in operating results from 2008 to 2009 primarily
    resulted from (i) lower demand in the U.S. and Canada
    drilling markets for rig instrumentation and data collection
    services from oil and gas exploration companies,
    (ii) decreases in customer demand for our construction and
    logistics services in Alaska and (iii) decreased capital
    equipment unit volumes and lower service and rental activity as
    a result of the slowdown in the oil and gas industry.
    
    38
 
    Discontinued
    Operations
 
    During 2010, we began actively marketing our oil and gas assets
    in the Horn River basin in Canada and in the Llanos basin in
    Colombia. These assets also include our 49.7% and 50.0%
    ownership interests in our investments of Remora and SMVP,
    respectively, which we account for using the equity method of
    accounting. All of these assets are included in our oil and gas
    operating segment. We determined that the plan of sale criteria
    in the ASC Topic relating to the Presentation of Financial
    Statements for Assets Sold or Held for Sale had been met during
    the third quarter of 2010. Accordingly, we reclassified these
    wholly owned oil and gas assets from our property, plant and
    equipment, net, as well as our investment balances for Remora
    and SMVP from investments in unconsolidated affiliates to assets
    held for sale in our consolidated balance sheet at
    September 30, 2010.
 
    The operating results from these assets for all periods
    presented are retroactively presented and accounted for as
    discontinued operations in the accompanying audited consolidated
    statements of income (loss). Our condensed statements of income
    (loss) from discontinued operations for the years ended
    December 31, 2010, 2009 and 2008 were as follows:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
 
 | 
    Increase/(Decrease)
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
    2009
 | 
 
 | 
    2008
 | 
 
 | 
    2010 to 2009
 | 
 
 | 
    2009 to 2008
 | 
| 
 
 | 
 
 | 
    (In thousands, except percentages)
 | 
|  
 | 
| 
 
    Revenues
 
 | 
 
 | 
    $
 | 
    37,840
 | 
 
 | 
 
 | 
    $
 | 
    8,937
 | 
 
 | 
 
 | 
    $
 | 
    4,354
 | 
 
 | 
 
 | 
    $
 | 
    28,903
 | 
 
 | 
 
 | 
 
 | 
    323
 | 
    %
 | 
 
 | 
    $
 | 
    4,583
 | 
 
 | 
 
 | 
 
 | 
    105
 | 
    %
 | 
| 
 
    Earnings (losses) from unconsolidated affiliates(1)
 
 | 
 
 | 
    $
 | 
    (10,628
 | 
    )
 | 
 
 | 
    $
 | 
    (59,248
 | 
    )
 | 
 
 | 
    $
 | 
    (37,286
 | 
    )
 | 
 
 | 
    $
 | 
    48,620
 | 
 
 | 
 
 | 
 
 | 
    82
 | 
    %
 | 
 
 | 
    $
 | 
    (21,962
 | 
    )
 | 
 
 | 
 
 | 
    (59
 | 
    )%
 | 
| 
 
    Income (loss) from discontinued operations, net of tax
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Income (loss) from discontinued operations, net of tax
 
 | 
 
 | 
    $
 | 
    (11,330
 | 
    )
 | 
 
 | 
    $
 | 
    (57,620
 | 
    )
 | 
 
 | 
    $
 | 
    (41,930
 | 
    )
 | 
 
 | 
    $
 | 
    46,290
 | 
 
 | 
 
 | 
 
 | 
    80
 | 
    %
 | 
 
 | 
    $
 | 
    (15,690
 | 
    )
 | 
 
 | 
 
 | 
    (37
 | 
    )%
 | 
 
 
     | 
     | 
     | 
    | 
    (1)  | 
     | 
    
    Includes our proportionate share of full-cost ceiling test
    writedowns of $47.8 million and $21.0 million, for the
    years ended December 31, 2009 and 2008, respectively. | 
 
    OTHER
    FINANCIAL INFORMATION
 
    General
    and administrative expenses
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
 
 | 
    Increase/(Decrease)
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
    2009
 | 
 
 | 
    2008
 | 
 
 | 
    2010 to 2009
 | 
 
 | 
    2009 to 2008
 | 
| 
 
 | 
 
 | 
    (In thousands, except percentages)
 | 
|  
 | 
| 
 
    General and administrative expenses
 
 | 
 
 | 
    $
 | 
    346,661
 | 
 
 | 
 
 | 
    $
 | 
    428,161
 | 
 
 | 
 
 | 
    $
 | 
    479,194
 | 
 
 | 
 
 | 
    $
 | 
    (81,500
 | 
    )
 | 
 
 | 
 
 | 
    (19
 | 
    )%
 | 
 
 | 
    $
 | 
    (51,033
 | 
    )
 | 
 
 | 
 
 | 
    (11
 | 
    )%
 | 
| 
 
    General and administrative expenses as a percentage of operating
    revenues
 
 | 
 
 | 
 
 | 
    8.3
 | 
    %
 | 
 
 | 
 
 | 
    11.6
 | 
    %
 | 
 
 | 
 
 | 
    8.7
 | 
    %
 | 
 
 | 
 
 | 
    (3.3
 | 
    )%
 | 
 
 | 
 
 | 
    (28
 | 
    )%
 | 
 
 | 
 
 | 
    2.9
 | 
    %
 | 
 
 | 
 
 | 
    33
 | 
    %
 | 
 
    General and administrative expenses decreased from 2009 to 2010
    and from 2008 to 2009 primarily as a result of significant
    decreases in wage-related expenses and other cost-reduction
    efforts across all business units. The decrease during 2009 was
    partially offset by share-based compensation expense, which
    included $72.1 million of compensation expense related to
    previously granted restricted stock and option awards held by
    Messrs. Isenberg and Petrello that was unrecognized as of
    April 1, 2009. The recognition of this expense resulted
    from provisions of their respective new employment agreements
    that effectively eliminated the risk of forfeiture of such
    awards. There is no remaining unrecognized expense related to
    their outstanding restricted stock and option awards. Excluding
    the share-based compensation expense related to the previous
    awards held by Messrs. Isenberg and Petrello, general and
    administrative expenses for 2009 and 2010 are substantially
    below 2008 levels, indicating that the cost-reduction efforts
    and actions across all business units beginning in late 2008
    have had a favorable impact on our operating results.
    
    39
 
    Depreciation
    and amortization, and depletion expense
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
 
 | 
    Increase/(Decrease)
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
    2009
 | 
 
 | 
    2008
 | 
 
 | 
    2010 to 2009
 | 
 
 | 
    2009 to 2008
 | 
| 
 
 | 
 
 | 
    (In thousands, except percentages)
 | 
|  
 | 
| 
 
    Depreciation and amortization expense
 
 | 
 
 | 
    $
 | 
    764,253
 | 
 
 | 
 
 | 
    $
 | 
    667,100
 | 
 
 | 
 
 | 
    $
 | 
    614,367
 | 
 
 | 
 
 | 
    $
 | 
    97,153
 | 
 
 | 
 
 | 
 
 | 
    15
 | 
    %
 | 
 
 | 
    $
 | 
    52,733
 | 
 
 | 
 
 | 
 
 | 
    9
 | 
    %
 | 
| 
 
    Depletion expense
 
 | 
 
 | 
    $
 | 
    17,943
 | 
 
 | 
 
 | 
    $
 | 
    9,417
 | 
 
 | 
 
 | 
    $
 | 
    22,308
 | 
 
 | 
 
 | 
    $
 | 
    8,526
 | 
 
 | 
 
 | 
 
 | 
    91
 | 
    %
 | 
 
 | 
    $
 | 
    (12,891
 | 
    )
 | 
 
 | 
 
 | 
    (58
 | 
    )%
 | 
 
    Depreciation and amortization
    expense.  Depreciation and amortization expense
    increased from 2009 to 2010 and from 2008 to 2009 primarily as a
    result of projects completed in recent years under our expanded
    capital expenditure program that commenced in early 2005.
 
    Depletion expense.  Depletion expense increased
    from 2009 to 2010 as a result of increased
    units-of-production
    depletion. Depletion expense decreased from 2008 to 2009
    primarily as a result of decreased natural gas production
    volumes during each year.
 
    Interest
    expense
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
 
 | 
    Increase/(Decrease)
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
    2009
 | 
 
 | 
    2008
 | 
 
 | 
    2010 to 2009
 | 
 
 | 
    2009 to 2008
 | 
| 
 
 | 
 
 | 
    (In thousands, except percentages)
 | 
|  
 | 
| 
 
    Interest expense
 
 | 
 
 | 
    $
 | 
    273,044
 | 
 
 | 
 
 | 
    $
 | 
    266,039
 | 
 
 | 
 
 | 
    $
 | 
    196,718
 | 
 
 | 
 
 | 
    $
 | 
    7,005
 | 
 
 | 
 
 | 
 
 | 
    3
 | 
    %
 | 
 
 | 
    $
 | 
    69,321
 | 
 
 | 
 
 | 
 
 | 
    (35
 | 
    %)
 | 
 
    Interest expense increased from 2009 to 2010 as a result of the
    interest expense related to our September 2010 issuance of
    5.0% senior notes due September 2020. The increase was
    partially offset by a reduction to interest expense resulting
    from our repurchases of approximately $1.2 billion par
    value of 0.94% senior exchangeable notes during 2009 and
    2010.
 
    Interest expense increased from 2008 to 2009 as a result of the
    interest expense related to our January 2009 issuance of
    9.25% senior notes due January 2019. The increase was
    partially offset by a reduction to interest expense due to our
    repurchases of approximately $1.1 billion par value of
    0.94% senior exchangeable notes during 2008 and 2009.
 
    Investment
    income (loss)
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
 
 | 
    Increase/(Decrease)
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
    2009
 | 
 
 | 
    2008
 | 
 
 | 
    2010 to 2009
 | 
 
 | 
    2009 to 2008
 | 
| 
 
 | 
 
 | 
    (In thousands, except percentages)
 | 
|  
 | 
| 
 
    Investment income (loss)
 
 | 
 
 | 
    $
 | 
    7,648
 | 
 
 | 
 
 | 
    $
 | 
    25,599
 | 
 
 | 
 
 | 
    $
 | 
    21,412
 | 
 
 | 
 
 | 
    $
 | 
    (17,951
 | 
    )
 | 
 
 | 
 
 | 
    (70
 | 
    )%
 | 
 
 | 
    $
 | 
    4,187
 | 
 
 | 
 
 | 
 
 | 
    20
 | 
    %
 | 
 
    Investment income during 2010 was $7.6 million compared to
    $25.6 million during the prior year. Investment income in
    2010 included interest and dividend income of $7.2 million
    from our cash, other short-term and long-term investments and
    $4.9 million from gains on sales of short-term and
    long-term investments, partially offset by net unrealized losses
    of $4.4 million from our trading securities.
 
    Investment income during 2009 was $25.6 million compared to
    $21.4 million during 2008. Investment income in 2009
    included net unrealized gains of $9.8 million from our
    trading securities and interest and dividend income of
    $15.9 million from our cash, other short-term and long-term
    investments.
 
    Investment income during 2008 was $21.4 million and
    included net unrealized gains of $8.5 million from our
    trading securities and interest and dividend income of
    $40.5 million from our short-term and long-term
    investments, partially offset by losses of $27.4 million
    from our actively managed funds classified as long-term
    investments.
    
    40
 
    Gains
    (losses) on sales and retirements of long-lived assets and other
    income (expense), net
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
 
 | 
    Increase/(Decrease)
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
    2009
 | 
 
 | 
    2008
 | 
 
 | 
    2010 to 2009
 | 
 
 | 
    2009 to 2008
 | 
| 
 
 | 
 
 | 
    (In thousands, except percentages)
 | 
|  
 | 
| 
 
    Gains (losses) on sales and retirements of long-lived assets and
    other income (expense), net
 
 | 
 
 | 
    $
 | 
    (47,060
 | 
    )
 | 
 
 | 
    $
 | 
    (12,559
 | 
    )
 | 
 
 | 
    $
 | 
    (15,829
 | 
    )
 | 
 
 | 
    $
 | 
    (34,501
 | 
    )
 | 
 
 | 
 
 | 
    (275
 | 
    )%
 | 
 
 | 
    $
 | 
    3,270
 | 
 
 | 
 
 | 
 
 | 
    21
 | 
    %
 | 
 
    The amount of gains (losses) on sales and retirements of
    long-lived assets and other income (expense), net for 2010
    represents a net loss of $47.1 million and includes:
    (i) foreign currency exchange losses of approximately
    $17.9 million, (ii) litigation expenses of
    $6.4 million, (iii) net losses on sales and
    retirements of long-lived assets of approximately
    $6.6 million, (iv) acquisition-related costs of
    $7.0 million and (v) losses of $7.0 million
    recognized on purchases of our 0.94% senior exchangeable
    notes due 2011.
 
    The amount of gains (losses) on sales and retirements of
    long-lived assets and other income (expense), net for 2009
    represents a net loss of $12.6 million and includes:
    (i) foreign currency exchange losses of approximately
    $8.4 million, (ii) litigation expenses of
    $11.5 million and (iii) net losses on sales and
    retirements of long-lived assets of approximately
    $5.9 million. These losses were partially offset by pre-tax
    gains of $11.5 million recognized on purchases of
    $964.8 million par value of our 0.94% senior
    exchangeable notes due 2011.
 
    The amount of gains (losses) on sales and retirements of
    long-lived assets and other income (expense), net for 2008
    represents a net loss of $15.8 million and includes:
    (i) losses on derivative instruments of approximately
    $14.6 million, including a $9.9 million loss on a
    three-month written put option and a $4.7 million loss on
    the fair value of our range-cap-and-floor derivative,
    (ii) losses on retirements on long-lived assets of
    approximately $13.2 million, inclusive of involuntary
    conversion losses on long-lived assets of approximately
    $12.0 million, net of insurance recoveries, related to
    damage sustained from Hurricanes Gustav and Ike during 2008 and
    (iii) litigation expenses of $3.5 million. These
    losses were partially offset by a $12.2 million pre-tax
    gain recognized on our purchase of $100 million par value
    of 0.94% senior exchangeable notes due 2011.
 
    Impairments
    and Other Charges
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
 
 | 
 
 | 
    Increase/(Decrease)
 | 
 
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
 
 | 
    2008
 | 
 
 | 
 
 | 
    2010 to 2009
 | 
 
 | 
 
 | 
    2009 to 2008
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands, except percentages)
 | 
 
 | 
|  
 | 
| 
 
    Impairment of oil and gas- related assets
 
 | 
 
 | 
    $
 | 
    192,179
 | 
 
 | 
 
 | 
    $
 | 
    197,744
 | 
 
 | 
 
 | 
    $
 | 
    21,537
 | 
 
 | 
 
 | 
    $
 | 
    (5,565
 | 
    )
 | 
 
 | 
 
 | 
    (3
 | 
    )%
 | 
 
 | 
    $
 | 
    176,207
 | 
 
 | 
 
 | 
 
 | 
    818
 | 
    %
 | 
| 
 
    Impairment of long-lived assets
 
 | 
 
 | 
 
 | 
    58,045
 | 
 
 | 
 
 | 
 
 | 
    64,229
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (6,184
 | 
    )
 | 
 
 | 
 
 | 
    (10
 | 
    )%
 | 
 
 | 
 
 | 
    64,229
 | 
 
 | 
 
 | 
 
 | 
    100
 | 
    %
 | 
| 
 
    Goodwill impairments
 
 | 
 
 | 
 
 | 
    10,707
 | 
 
 | 
 
 | 
 
 | 
    14,689
 | 
 
 | 
 
 | 
 
 | 
    150,008
 | 
 
 | 
 
 | 
 
 | 
    (3,982
 | 
    )
 | 
 
 | 
 
 | 
    (27
 | 
    )%
 | 
 
 | 
 
 | 
    (135,319
 | 
    )
 | 
 
 | 
 
 | 
    (90
 | 
    )%
 | 
| 
 
    Impairment of other intangible assets
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    4,578
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (4,578
 | 
    )
 | 
 
 | 
 
 | 
    (100
 | 
    )%
 | 
| 
 
    Other-than-temporary
    impairment on securities
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    54,314
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (54,314
 | 
    )
 | 
 
 | 
 
 | 
    (100
 | 
    )%
 | 
 
 | 
 
 | 
    54,314
 | 
 
 | 
 
 | 
 
 | 
    100
 | 
    %
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total
 
 | 
 
 | 
    $
 | 
    260,931
 | 
 
 | 
 
 | 
    $
 | 
    330,976
 | 
 
 | 
 
 | 
    $
 | 
    176,123
 | 
 
 | 
 
 | 
    $
 | 
    (70,045
 | 
    )
 | 
 
 | 
 
 | 
    (21
 | 
    )%
 | 
 
 | 
    $
 | 
    154,853
 | 
 
 | 
 
 | 
 
 | 
    88
 | 
    %
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
    Impairments
    of Oil and Gas Assets
 
    In 2010, we recognized impairments of $192.2 million
    related to our oil and gas assets. Of this total,
    $137.8 million represents writedowns to the carrying value
    of some acreage in the United States, which we do not have
    future plans to develop due to the sustained low natural gas
    prices, and certain exploratory wells in Colombia, which we have
    determined will be uneconomical to develop in the foreseeable
    future.
    
    41
 
    The remaining $54.3 million relates to an impairment of a
    financing receivable as a result of the continued commodity
    price deterioration in the Barnett Shale area of north central
    Texas. We determined that this impairment was necessary using
    estimates and assumptions based on estimated cash flows for
    proved and probable reserves and current natural gas prices. We
    believe the estimates used provide a reasonable estimate of
    current fair value. We determined that this represented a
    Level 3 fair value measurement. As of December 31,
    2010, the carrying value of this oil and gas financing
    receivable, which is included in long-term investments, has been
    reduced to $20.1 million. A further protraction or
    continued period of lower commodity prices could result in
    recognition of future impairment charges.
 
    In 2009, we recorded impairments totaling $197.7 million to
    some of our wholly owned oil and gas assets. We recognized an
    impairment of $149.1 million to a financing receivable as a
    result of commodity price deterioration and the lower price
    environment last longer than expected. The prolonged period of
    lower prices significantly reduced demand for future gas
    production and development in the Barnett Shale area of north
    central Texas and influenced our decision not to expend capital
    to develop on some of the undeveloped acreage. The impairment,
    which represented a Level 3 fair value measurement, was
    determined using discounted cash flow models involving
    assumptions based on estimated cash flows for proved and
    probable reserves, undeveloped acreage value, and current and
    expected natural gas prices. Additionally, our annual impairment
    tests on our U.S. wholly owned oil and gas properties
    resulted in impairment charges of $48.6 million to
    writedown the carrying value of some acreage that we do not have
    future plans to develop.
 
    In 2008, our annual impairment tests on our U.S. wholly
    owned oil and gas properties resulted in impairment charges of
    $21.5 million primarily due to the significant decline in
    oil and natural gas prices at the end of 2008. Additional
    discussion of our policy pertaining to the calculation of our
    annual impairment tests is set forth below in Oil and Gas
    Properties and in Note 2  Summary of
    Significant Accounting Policies in Part II,
    Item 8.  Financial Statements and Supplementary
    Data.
 
    Impairments
    of Long-Lived Assets
 
    In 2010, we recognized impairments of $58.0 million in
    multiple operating segments. These impairments included
    $23.2 million related to the retirement of certain rig
    components, comprised of engines, top-drive units, building
    modules and other equipment that has become obsolete or
    inoperable in each of these operating segments in our
    U.S. Lower 48 Land Drilling, U.S. Land Well-servicing
    and U.S. Offshore Contract Drilling segment. The impairment
    charges were determined to be necessary as a result of the
    continued lower commodity price environment and its related
    impact on drilling and well-servicing activity and our dayrates.
    A prolonged period of legislative uncertainty in our U.S.
    Offshore operations, or continued period of lower natural gas
    and oil prices and its potential impact on our utilization and
    dayrates could result in the recognition of future impairment
    charges to additional assets if future cash flow estimates,
    based upon information then available to management, indicate
    that the carrying value of those assets may not be recoverable.
 
    The remaining $34.8 million in impairment charges recorded
    during 2010 include $27.3 million related to the impairment
    of some
    jack-up rigs
    in our U.S. Offshore operating segment and
    $7.5 million to our aircraft and some drilling equipment in
    Nabors Blue Sky Ltd. These impairment charges stemmed from our
    annual impairment tests on long-lived assets, which determined
    that the sum of the estimated future cash flows, on an
    undiscounted basis, was less than the carrying amount of these
    assets. The estimated fair values of these assets were
    calculated using discounted cash flow models involving
    assumptions based on our utilization of the assets, revenues as
    well as direct costs, capital expenditures and working capital
    requirements. The impairment charge relating to our
    U.S. Offshore segment was deemed necessary due to the
    economic conditions for drilling in the Gulf of Mexico, as
    discussed below. The impairment charge relating to Nabors Blue
    Sky Ltd. was deemed necessary due to the continued duration of
    the downturn in the oil and gas industry in Canada, which has
    resulted in diminished demand for the remote access services
    provided by this subsidiarys aircraft fleet.
 
    In 2009, we recognized impairments of $64.2 million related
    to retirements of certain assets in our U.S. Offshore,
    Alaska, Canada and International Contract Drilling segments,
    which reduced their aggregate carrying value to their estimated
    aggregate salvage value. The retirements included inactive
    workover
    jack-up
    
    42
 
    rigs in our U.S. Offshore and International operations, the
    structural frames of some incomplete coiled tubing rigs in our
    Canada operations and miscellaneous rig components in our Alaska
    operations. The impairment charges resulted from the continued
    deterioration and
    longer-than-expected
    downturn in the demand for oil and gas drilling activities.
 
    Goodwill
    Impairments
 
    In 2010, we recognized an impairment of approximately
    $10.7 million relating to our goodwill balance of our
    U.S. Offshore operating segment. The impairment charge
    stemmed from our annual impairment test on goodwill, which
    compared the estimated fair value of each of our reporting units
    to its carrying value. The estimated fair value of our
    U.S. Offshore segment was determined using discounted cash
    flow models involving assumptions based on our utilization of
    rigs and revenues as well as direct costs, general and
    administrative costs, depreciation, applicable income taxes,
    capital expenditures and working capital requirements. We
    determined that the fair value estimated for purposes of this
    test represented a Level 3 fair value measurement. The
    impairment charge was deemed necessary due to the uncertainty of
    utilization of some of our rigs as a result of changes in our
    customers plans for future drilling operations in the Gulf
    of Mexico. Many of our customers have suspended drilling
    operations in the Gulf of Mexico, largely as a result of their
    inability to obtain government permits. Although the
    U.S. deepwater drilling moratorium has been lifted, it is
    uncertain whether our customers ability to obtain
    government permits will improve in the near term. A
    significantly prolonged period of lower oil and natural gas
    prices or changes in laws and regulations could adversely affect
    the demand for and prices of our services, which could result in
    future goodwill impairment charges for other reporting units due
    to the potential impact on our estimate of our future operating
    results. See Critical Accounting Policies below and Note 2
     Summary of Significant Accounting Policies (included
    under the caption Goodwill) in Part II,
    Item 8.  Financial Statements and Supplementary
    Data.
 
    In 2009, we impaired the remaining goodwill balance of
    $14.7 million of Nabors Blue Sky Ltd., one of our Canadian
    subsidiaries who provides access to remote drilling sites by
    helicopters and fixed-wing aircraft. The impairment charges
    resulted from our annual impairment tests on goodwill which
    compared the estimated fair value of each of our reporting units
    to its carrying value. The estimated fair value of these
    business units was determined using discounted cash flow models
    involving assumptions based on our utilization of rigs or
    aircraft, revenues and earnings from affiliates, as well as
    direct costs, general and administrative costs, depreciation,
    applicable income taxes, capital expenditures and working
    capital requirements. We determined that the fair value
    estimated for purposes of this test represented a Level 3
    fair value measurement. The impairment charges were deemed
    necessary due to the continued downturn in the oil and gas
    industry in Canada and the lack of certainty regarding eventual
    recovery in the value of these operations. This downturn led to
    reduced capital spending by some of our customers and diminished
    demand for our drilling services and for immediate access to
    remote drilling sites.
 
    In 2008, we impaired the entire goodwill balance of
    $145.4 million of our Canada Well-servicing and Drilling
    operating segment and recorded an impairment of
    $4.6 million to Nabors Blue Sky Ltd. This impairment was
    also deemed necessary due to the continued downturn in the oil
    and gas industry in Canada and the lack of certainty regarding
    eventual recovery in the value of these operations. This
    downturn led to reduced capital spending by some of our
    customers and diminished demand for our drilling services and
    for immediate access to remote drilling sites.
 
    Other
    than Temporary Impairments on Debt and Equity
    Securities
 
    In 2009, we recorded
    other-than-temporary
    impairments to our
    available-for-sale
    securities totaling $54.3 million. Of this,
    $35.6 million was related to an investment in a corporate
    bond that was downgraded to non-investment grade level by
    Standard and Poors and Moodys Investors Service
    during the year. Our determination that the impairment was
    other-than-temporary was based on a variety of factors,
    including the length of time and extent to which the market
    value had been less than cost, the financial condition of the
    issuer of the security, and the credit ratings and recent
    reorganization of the issuer.
 
    The remaining $18.7 million related to an equity security
    of a public company whose operations are driven in large measure
    by the price of oil and in which we invested approximately
    $46 million during the
    
    43
 
    second and third quarters of 2008. During late 2008, demand for
    oil and gas began to diminish significantly as part of the
    general deterioration of the global economic environment,
    causing a broad decline in value of nearly all oil and
    gas-related equity securities. Because the trading price per
    share of this security remained below our cost basis for an
    extended period of time, we determined the investment was other
    than temporarily impaired and it was appropriate to write down
    its carrying value to its estimated fair value.
 
    Income
    tax rate
 
    |   | 	
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      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Increase/(Decrease)
 | 
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
 
 | 
    2010 to 
    
 | 
 
 | 
    2009 to 
    
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
    2009
 | 
 
 | 
    2008
 | 
 
 | 
    2009
 | 
 
 | 
    2008
 | 
|  
 | 
| 
 
    Effective income tax rate from continuing operations
 
 | 
 
 | 
 
 | 
    (30
 | 
    )%
 | 
 
 | 
 
 | 
    83
 | 
    %
 | 
 
 | 
 
 | 
    29
 | 
    %
 | 
 
 | 
 
 | 
    (113
 | 
    )%
 | 
 
 | 
 
 | 
    (136
 | 
    )%
 | 
 
 | 
 
 | 
    54
 | 
    %
 | 
 
 | 
 
 | 
    186
 | 
    %
 | 
 
    Our effective income tax rate for 2010 and 2009 reflects the
    disparity between losses in our U.S. operations
    (attributable primarily to impairments) and income in our other
    operations primarily in lower tax jurisdictions. Because the
    U.S. income tax rate is higher than that of other
    jurisdictions, the tax benefit from our U.S. losses was not
    proportionately reduced by the tax expense from our other
    operations. During 2010 and 2009, the result was a net tax
    benefit. In 2009, that benefit represented a significant
    percentage of our consolidated loss from continuing operations
    before income taxes. Because of the manner in which that number
    was derived, we do not believe it presents a meaningful basis
    for comparing our 2009 effective income tax rate to either the
    2010 or 2008 effective income tax rate.
 
    We are subject to income taxes in the United States and numerous
    other jurisdictions. Significant judgment is required in
    determining our worldwide provision for income taxes. One of the
    most volatile factors in this determination is the relative
    proportion of our income or loss being recognized in high-
    versus low-tax jurisdictions. In the ordinary course of our
    business, there are many transactions and calculations for which
    the ultimate tax determination is uncertain. We are regularly
    audited by tax authorities. Although we believe our tax
    estimates are reasonable, the final outcome of tax audits and
    any related litigation could be materially different than what
    is reflected in our income tax provisions and accruals. The
    results of an audit or litigation could materially affect our
    financial position, income tax provision, net income, or cash
    flows.
 
    Various bills have been introduced in Congress that could reduce
    or eliminate the tax benefits associated with our reorganization
    as a Bermuda company. Legislation enacted by Congress in 2004
    provides that a corporation that reorganized in a foreign
    jurisdiction on or after March 4, 2003 be treated as a
    domestic corporation for U.S. federal income tax purposes.
    Nabors reorganization was completed June 24, 2002.
    There have been and we expect that there may continue to be
    legislation proposed by Congress from time to time which, if
    enacted, could limit or eliminate the tax benefits associated
    with our reorganization.
 
    Because we cannot predict whether legislation will ultimately be
    adopted, no assurance can be given that the tax benefits
    associated with our reorganization will ultimately accrue to the
    benefit of the Company and its shareholders. It is possible that
    future changes to the tax laws (including tax treaties) could
    impact our ability to realize the tax savings recorded to date
    as well as future tax savings resulting from our reorganization.
 
    Liquidity
    and Capital Resources
 
    Cash
    Flows
 
    Our cash flows depend, to a large degree, on the level of
    spending by oil and gas companies for exploration, development
    and production activities. Sustained increases or decreases in
    the price of natural gas or oil could have a material impact on
    these activities, and could also materially affect our cash
    flows. Certain sources and uses of cash, such as the level of
    discretionary capital expenditures, purchases and sales of
    investments, issuances and repurchases of debt and of our common
    shares are within our control and are adjusted as necessary
    based on market conditions. The following is a discussion of our
    cash flows for the years ended December 31, 2010 and 2009.
 
    Operating Activities.  Net cash provided by
    operating activities totaled $1.1 billion during 2010
    compared to net cash provided by operating activities of
    $1.6 billion during 2009. Net cash provided by
    
    44
 
    operating activities (operating cash flows) is our
    primary source of capital and liquidity. Factors affecting
    changes in operating cash flows are largely the same as those
    that affect net earnings, with the exception of non-cash
    expenses such as depreciation and amortization, depletion,
    impairments, share-based compensation, deferred income taxes and
    our proportionate share of earnings or losses from
    unconsolidated affiliates. Net income (loss) adjusted for
    non-cash components was approximately $1.3 billion and
    $1.1 billion for the years ended December 31, 2010 and
    2009, respectively. Additionally, changes in working capital
    items such as collection of receivables can be a significant
    component of operating cash flows. Changes in working capital
    items used $202.4 million in cash flows for the year ended
    December 31, 2010 and provided $471.9 million in cash
    flows for the year ended December 31, 2009.
 
    Investing Activities.  Net cash used for
    investing activities totaled $1.7 billion during 2010
    compared to net cash used for investing activities of
    $1.2 billion during 2009. During 2010, we used cash of
    $680.2 million and $53.4 million, respectively, to
    acquire Superior (net of the cash acquired) and the assets of
    Energy Contractors. During 2010 and 2009, we used cash primarily
    for capital expenditures totaling $930.3 million and
    $1.1 billion, respectively, and investments in
    unconsolidated affiliates totaling $40.9 million and
    $125.1 million, respectively. During 2009, we derived cash
    from sales of investments, net of purchases, totaling
    $24.4 million.
 
    Financing Activities.  Net cash provided by
    financing activities totaled $280.3 million during 2010
    compared to net cash used for financing activities of
    $19.4 million during 2009. During 2010, cash was provided
    from the receipt of $682.3 million in proceeds, net of debt
    issuance costs, from the September 2010 issuance of
    5.0% senior notes due 2020. During 2010, we used cash to
    purchase $273.9 million of our 0.94% senior
    exchangeable notes due 2011 and to repay $124.0 million of
    Superiors revolving credit facility and second lien notes.
 
    During 2009, cash was derived from the receipt of
    $1.1 billion in proceeds, net of debt issuance costs, from
    the January 2009 issuance of 9.25% senior notes due 2019,
    and cash totaling $862.6 million was used to purchase
    $964.8 million par value of 0.94% senior exchangeable
    notes due 2011 and $225.2 million was used to redeem the
    4.875% senior notes. During 2010 and 2009, cash was
    provided by our receipt of proceeds totaling $8.2 million
    and $11.2 million, respectively, from the exercise by our
    employees of options to acquire our common shares.
 
    Future
    Cash Requirements
 
    As of December 31, 2010, we had long-term debt, including
    current maturities, of $4.4 billion and cash and
    investments of $841.5 million, including $40.3 million
    of long-term investments and other receivables. Long-term
    investments and other receivables include $32.9 million in
    oil and gas financing receivables.
 
    As of December 31, 2010, the current portion of our
    long-term debt included $1.4 billion par value of Nabors
    Delawares 0.94% senior exchangeable notes that mature
    in May 2011. We continue to assess our ability to meet this
    obligation, along with our other operating and capital
    requirements and other potential opportunities. We expect to do
    so through a combination of cash on hand, future operating cash
    flows, possible dispositions of non-core assets, availability
    under our unsecured revolving credit facility and our ability to
    access the capital markets, if required. At December 31, 2010,
    we had $700 million available under a senior unsecured
    revolving credit facility; in January 2011, we added another
    lender to the facility raising the amount available to
    $750 million. On February 11, 2011, one of our subsidiaries
    established a credit facility, which we unconditionally
    guarantee, for approximately US$50 million. There are
    a number of factors that could negatively impact our plans,
    including our ability to access the financial markets at
    competitive rates if the financial markets are limited or
    restricted, a decline in oil and natural gas prices, a decline
    in demand for our services or market perceptions of us and our
    industry.
    
    45
 
    The senior exchangeable notes would require us upon exchange to
    pay note holders cash up to the principal amount of the notes
    and our common shares for any amount by which the exchange value
    of the notes exceeds their principal amount. The notes can only
    be exchanged:
 
    (i) if our share price exceeds $59.57 (approximately) for
    at least 20 trading days during the period of 30 consecutive
    trading days ending on the last trading day of the previous
    calendar quarter; or
 
    (ii) during the five business days immediately following
    any ten consecutive trading day period in which the per note
    trading price for each day of that period is less than 95% of
    the product of (a) the sale price of our common shares and
    (b) the then applicable exchange rate for the notes; or
 
    (iii) upon the occurrence of specified corporate
    transactions.
 
    On February 24, 2011, the closing market price for our
    common stock was $27.65 per share. If any of the foregoing
    conditions were met and the notes were exchanged at a price
    equal to 100% of their principal amount before maturity, the
    required cash payment could have a significant impact on our
    level of cash and cash equivalents and investments available to
    meet our other cash obligations. However, management believes
    that if the price of our shares exceeded $59.57 for the required
    period of time, note holders would be unlikely to exchange them
    as it would be more beneficial to sell the notes to other
    investors on the open market. Nevertheless, there can be no
    assurance that the holders would not exchange the notes.
 
    We expect capital expenditures over the next 12 months to
    approximate $1.3-1.7 billion. We had outstanding purchase
    commitments of approximately $754.6 million at
    December 31, 2010, primarily for rig-related enhancements,
    construction and sustaining capital expenditures and other
    operating expenses. We can reduce the planned expenditures if
    necessary, or increase them if market conditions and new
    business opportunities warrant it.
 
    We have historically completed a number of acquisitions and will
    continue to evaluate opportunities to acquire assets or
    businesses to enhance our operations. Several of our previous
    acquisitions were funded through issuances of our common shares.
    Future acquisitions may be paid for using existing cash or
    issuing debt or Nabors shares. Such capital expenditures and
    acquisitions will depend on our view of market conditions and
    other factors.
 
    See our discussion of guarantees issued by Nabors that could
    have a potential impact on our financial position, results of
    operations or cash flows in future periods included below under
    Off-Balance Sheet Arrangements (Including Guarantees).
 
    The following table summarizes our contractual cash obligations
    as of December 31, 2010:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Payments Due by Period
 | 
 
 | 
| 
 
 | 
 
 | 
    Total
 | 
 
 | 
 
 | 
    < 1 Year
 | 
 
 | 
 
 | 
    1-3 Years
 | 
 
 | 
 
 | 
    3-5 Years
 | 
 
 | 
 
 | 
    Thereafter
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Contractual cash obligations:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Long-term debt:(1)
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Principal
 
 | 
 
 | 
    $
 | 
    4,478,455
 | 
 
 | 
 
 | 
    $
 | 
    1,403,455(2
 | 
    )
 | 
 
 | 
    $
 | 
    275,000(3
 | 
    )
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    2,800,000(4
 | 
    )
 | 
| 
 
    Interest
 
 | 
 
 | 
 
 | 
    1,720,577
 | 
 
 | 
 
 | 
 
 | 
    220,434
 | 
 
 | 
 
 | 
 
 | 
    412,942
 | 
 
 | 
 
 | 
 
 | 
    398,076
 | 
 
 | 
 
 | 
 
 | 
    689,125
 | 
 
 | 
| 
 
    Operating leases(5)
 
 | 
 
 | 
 
 | 
    74,128
 | 
 
 | 
 
 | 
 
 | 
    25,749
 | 
 
 | 
 
 | 
 
 | 
    32,774
 | 
 
 | 
 
 | 
 
 | 
    14,673
 | 
 
 | 
 
 | 
 
 | 
    932
 | 
 
 | 
| 
 
    Capital leases
 
 | 
 
 | 
 
 | 
    4,297
 | 
 
 | 
 
 | 
 
 | 
    2,201
 | 
 
 | 
 
 | 
 
 | 
    1,811
 | 
 
 | 
 
 | 
 
 | 
    285
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Purchase commitments(6)
 
 | 
 
 | 
 
 | 
    754,605
 | 
 
 | 
 
 | 
 
 | 
    603,960
 | 
 
 | 
 
 | 
 
 | 
    77,145
 | 
 
 | 
 
 | 
 
 | 
    73,500
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Employment contracts(5)
 
 | 
 
 | 
 
 | 
    28,319
 | 
 
 | 
 
 | 
 
 | 
    11,965
 | 
 
 | 
 
 | 
 
 | 
    16,035
 | 
 
 | 
 
 | 
 
 | 
    319
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Pension funding obligations
 
 | 
 
 | 
 
 | 
    1,315
 | 
 
 | 
 
 | 
 
 | 
    1,315
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Transportation and Processing Contracts(7)
 
 | 
 
 | 
 
 | 
    400,037
 | 
 
 | 
 
 | 
 
 | 
    29,564
 | 
 
 | 
 
 | 
 
 | 
    120,344
 | 
 
 | 
 
 | 
 
 | 
    128,252
 | 
 
 | 
 
 | 
 
 | 
    121,877
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total contractual cash obligations
 
 | 
 
 | 
    $
 | 
    7,461,733
 | 
 
 | 
 
 | 
    $
 | 
    2,298,643
 | 
 
 | 
 
 | 
    $
 | 
    936,051
 | 
 
 | 
 
 | 
    $
 | 
    615,105
 | 
 
 | 
 
 | 
    $
 | 
    3,611,934
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    
    46
 
    The table above excludes liabilities for unrecognized tax
    benefits totaling $124.1 million as of December 31,
    2010 because we are unable to make reasonably reliable estimates
    of the timing of cash settlements with the respective taxing
    authorities. Further details on the unrecognized tax benefits
    can be found in Note 12  Income Taxes in
    Part II, Item 8.  Financial Statements and
    Supplementary Data.
 
    (1) See Note 11  Debt in Part II,
    Item 8.  Financial Statements and Supplementary
    Data.
 
     | 
     | 
     | 
    |   | 
        (2) 
 | 
    
    Includes the remaining portion of Nabors Delawares
    0.94% senior exchangeable notes due May 2011.
 | 
 
    (3) Includes Nabors Delawares 5.375% senior
    notes due August 2012.
 
     | 
     | 
     | 
    |   | 
        (4) 
 | 
    
    Represents Nabors Delawares aggregate 6.15% senior
    notes due February 2018, 9.25% senior notes due January
    2019 and 5.0% senior notes due September 2020.
 | 
|   | 
    |   | 
        (5) 
 | 
    
    See Note 17  Commitments and Contingencies in
    Part II, Item 8.  Financial Statements and
    Supplementary Data.
 | 
|   | 
    |   | 
        (6) 
 | 
    
    Purchase commitments include agreements to purchase goods or
    services that are enforceable and legally binding and that
    specify all significant terms, including fixed or minimum
    quantities to be purchased; fixed, minimum or variable pricing
    provisions; and the approximate timing of the transaction.
 | 
|   | 
    |   | 
        (7) 
 | 
    
    We have contracts with a pipeline company to pay specified fees
    based on committed volumes for gas transport and processing, as
    calculated on a monthly basis. Due to low natural gas prices and
    our decision to delay drilling, our current available production
    flowing to pipelines and processing plants does not meet the
    daily committed volumes required under the contracts. The
    amounts set forth in the table above reflect the aggregate fees
    payable under these contracts.
 | 
 
    We may from time to time seek to retire or purchase our
    outstanding debt through cash purchases
    and/or
    exchanges for equity securities, both in open-market purchases,
    privately negotiated transactions or otherwise. Such repurchases
    or exchanges, if any, will depend on prevailing market
    conditions, our liquidity requirements, contractual restrictions
    and other factors. The amounts involved may be material.
 
    In July 2006 our Board of Directors authorized a share
    repurchase program under which we may repurchase up to
    $500 million of our common shares in the open market or in
    privately negotiated transactions. Through December 31,
    2010, $464.5 million of our common shares had been
    repurchased under this program. As of December 31, 2010, we
    had the capacity to repurchase up to an additional
    $35.5 million of our common shares under the July
    2006 share repurchase program.
 
    See Note 17  Commitments and Contingencies in
    Part II, Item 8.  Financial Statements and
    Supplementary Data for discussion of commitments and
    contingencies relating to (i) new employment agreements,
    effective April 1, 2009, that could result in significant
    cash payments of $100 million and $50 million to
    Messrs. Isenberg and Petrello, respectively, by the Company
    if their employment is terminated in the event of death or
    disability or cash payments of $100 million to
    Mr. Isenberg and a cash payment of approximately
    $34 million to Mr. Petrello, respectively, by the
    Company if their employment is terminated without cause or in
    the event of a change in control and (ii) off-balance sheet
    arrangements (including guarantees).
 
    Financial
    Condition and Sources of Liquidity
 
    Our primary sources of liquidity are cash and cash equivalents,
    short-term and long-term investments and cash generated from
    operations. As of December 31, 2010, we had cash and
    investments of $841.5 million (including $40.3 million
    of long-term investments and other receivables, inclusive of
    $32.9 million in oil and gas financing receivables) and
    working capital of $458.6 million. Oil and gas financing
    receivables are classified as long-term investments. These
    receivables represent our financing agreements for certain
    production payment contracts in our Oil and Gas segment. This
    compares to cash and investments of $1.2 billion (including
    $100.9 million of long-term investments and other
    receivables, inclusive of $92.5 million in oil and gas
    financing receivables) and working capital of $1.6 billion
    as of December 31, 2009.
    
    47
 
    Our gross funded debt to capital ratio was 0.42:1 as of
    December 31, 2010 and 0.41:1 as of December 31, 2009.
    Our net funded debt to capital ratio was 0.37:1 as of
    December 31, 2010 and 0.33:1 as of December 31, 2009.
 
    The gross funded debt to capital ratio is calculated by dividing
    (x) funded debt by (y) funded debt plus
    deferred tax liabilities (net of deferred tax assets)
    plus capital. Funded debt is the sum of
    (1) short-term borrowings, (2) the current portion of
    long-term debt and (3) long-term debt. Capital is
    shareholders equity.
 
    The net funded debt to capital ratio is calculated by dividing
    (x) net funded debt by (y) net funded debt plus
    deferred tax liabilities (net of deferred tax assets)
    plus capital. Net funded debt is funded debt minus
    the sum of cash and cash equivalents and short-term and
    long-term investments and other receivables. Both of these
    ratios are used to calculate a companys leverage in
    relation to its capital. Neither ratio measures operating
    performance or liquidity as defined by GAAP and, therefore, may
    not be comparable to similarly titled measures presented by
    other companies.
 
    Our interest coverage ratio was 7.0:1 as of December 31,
    2010 and 6.3:1 as of December 31, 2009. The interest
    coverage ratio is a trailing
    12-month
    quotient of the sum of income (loss) from continuing operations,
    net of tax, net income (loss) attributable to noncontrolling
    interest, interest expense, subsidiary preferred stock
    dividends, depreciation and amortization, depletion expense,
    impairments and other charges, income tax expense (benefit) and
    our proportionate share of writedowns from our unconsolidated
    oil and gas joint ventures less investment income (loss)
    divided by cash interest expense plus subsidiary preferred stock
    dividends. This ratio is a method for calculating the amount of
    operating cash flows available to cover cash interest expense.
    The interest coverage ratio is not a measure of operating
    performance or liquidity defined by GAAP and may not be
    comparable to similarly titled measures presented by other
    companies.
 
    During the third quarter of 2010, we and Nabors Delaware entered
    into a credit agreement under which the lenders committed to
    provide up to $700 million under an unsecured revolving
    credit facility (the Revolving Credit Facility) or
    the (Facility). The Facility also provides Nabors
    Delaware the option to add other lenders and increase the
    aggregate principal amount of commitments to $850 million
    by adding new lenders to the Facility or by asking existing
    lenders under the Facility to increase their commitments (in
    each case with the consent of the new lenders or the increasing
    lenders). In January 2011, Nabors Delaware added a new lender to
    the Facility and increased the total commitments under the
    Facility to $750 million. We fully and unconditionally
    guarantee the obligations under the Revolving Credit Facility,
    which matures in four years.
 
    Borrowings under the Revolving Credit Facility bear interest, at
    Nabors Delawares option, at either (x) the Base
    Rate (as defined below) plus the applicable interest
    margin, calculated on the basis of the actual number of days
    elapsed in a year of 365 days and payable quarterly in
    arrears or (y) interest periods of one, two, three or six
    months at an annual rate equal to the LIBOR for the
    corresponding deposits of U.S. dollars, plus the applicable
    interest margin, payable on the last days of the relevant
    interest periods (but in any event at least every three months).
    The Base Rate is defined, for any day, as a
    fluctuating rate per annum equal to the highest of (i) the
    Federal Funds Rate, as published by the Federal Reserve Bank of
    New York, plus
    1/2
    of 1%, (ii) the prime commercial lending rate of UBS AG, as
    established from time to time at its Stamford Branch and
    (iii) LIBOR for an interest period of one month beginning
    on such day plus 1%.
 
    On September 10, 2010, we completed the Superior Merger,
    pursuant to which we acquired all of the issued and outstanding
    shares of Superiors common stock, at a price per share
    equal to $22.12 for a cash purchase price of approximately
    $681.3 million. We paid this amount using cash on hand and
    proceeds from the Revolving Credit Facility. Nabors Delaware
    repaid the borrowing under the Revolving Credit Facility using
    cash on hand and proceeds from the senior notes issued on
    September 14, 2010, as discussed below.
 
    On September 14, 2010, Nabors Delaware completed a private
    placement of $700 million aggregate principal amount of
    5.0% senior notes due 2020, which are unsecured and are
    fully and unconditionally guaranteed by us. The senior notes
    have registration rights and will mature on September 15,
    2020. Nabors Delaware used a portion of the proceeds to repay
    the borrowing of $600 million under the Revolving Credit
    Facility incurred to fund the acquisition of Superior. We and
    Nabors Delaware are using the remaining proceeds for general
    corporate purposes.
    
    48
 
    On January 20, 2011, in accordance with the registration
    rights agreement entered into in connection with the issuance of
    the 5.0% senior notes, Nabors Delaware commenced an
    exchange offer for the notes pursuant to a registration
    statement on
    Form S-4,
    which was declared effective by the SEC on January 19,
    2011. The exchange offer expired on February 23, 2011 and
    closed on February 28, 2011.
 
    On December 31, 2010, we purchased the business of Energy
    Contractors for a total cash purchase price of
    $53.4 million. We paid this amount using cash on hand.
 
    We had five
    letter-of-credit
    facilities with various banks as of December 31, 2010.
    Availability under our
    letter-of-credit
    facilities as of December 31, 2010 was as follows:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Credit available
 
 | 
 
 | 
    $
 | 
    270,263
 | 
 
 | 
| 
 
    Letters of credit outstanding, inclusive of financial and
    performance guarantees
 
 | 
 
 | 
 
 | 
    (70,605
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Remaining availability
 
 | 
 
 | 
    $
 | 
    199,658
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
    Our ability to access capital markets or to otherwise obtain
    sufficient financing is enhanced by our senior unsecured debt
    ratings as provided by Fitch Ratings, Moodys Investors
    Service and Standard & Poors and our historical
    ability to access those markets as needed. While there can be no
    assurances that we will be able to access these markets in the
    future, we believe that we will be able to access capital
    markets or otherwise obtain financing in order to satisfy any
    payment obligation that might arise upon exchange or purchase of
    our notes and that any cash payment due, in addition to our
    other cash obligations, would not ultimately have a material
    adverse impact on our liquidity or financial position. A credit
    downgrade may impact our ability to access credit markets.
 
    Our current cash and investments, projected cash flows from
    operations, possible dispositions of non-core assets and our
    Facility are expected to adequately finance our purchase
    commitments, our scheduled debt service requirements, and all
    other expected cash requirements for the next twelve months.
 
    See our discussion of the impact of changes in market conditions
    on our derivative financial instruments under Item 7A.
    Quantitative and Qualitative Disclosures About Market Risk.
 
    Off-Balance
    Sheet Arrangements (Including Guarantees)
 
    We are a party to some transactions, agreements or other
    contractual arrangements defined as off-balance sheet
    arrangements that could have a material future effect on
    our financial position, results of operations, liquidity and
    capital resources. The most significant of these off-balance
    sheet arrangements involve agreements and obligations under
    which we provide financial or performance assurance to third
    parties. Certain of these agreements serve as guarantees,
    including standby letters of credit issued on behalf of
    insurance carriers in conjunction with our workers
    compensation insurance program and other financial surety
    instruments such as bonds. In addition, we have provided
    indemnifications, which serve as guarantees, to some third
    parties. These guarantees include indemnification provided by
    Nabors to our share transfer agent and our insurance carriers.
    We are not able to estimate the potential future maximum
    payments that might be due under our indemnification guarantees.
 
    Management believes the likelihood that we would be required to
    perform or otherwise incur any material losses associated with
    any of these guarantees is remote. The following table
    summarizes the total maximum amount of financial guarantees
    issued by Nabors:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Maximum Amount
 | 
| 
 
 | 
 
 | 
    2011
 | 
 
 | 
    2012
 | 
 
 | 
    2013
 | 
 
 | 
    Thereafter
 | 
 
 | 
    Total
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
|  
 | 
| 
 
    Financial standby letters of credit and other financial surety
    instruments
 
 | 
 
 | 
    $
 | 
    83,010
 | 
 
 | 
 
 | 
    $
 | 
    525
 | 
 
 | 
 
 | 
    $
 | 
    12,158
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    95,693
 | 
 
 | 
    
    49
 
    Other
    Matters
 
    Risk
    Management
 
    In February 2010, our Board of Directors established a Risk
    Oversight Committee, which is responsible for
 
     | 
     | 
     | 
    |   | 
         
 | 
    
    monitoring managements identification and evaluation of
    major strategic, operational, regulatory, information and
    external risks inherent in our business,
 | 
|   | 
    |   | 
         
 | 
    
    reviewing the integrity of our systems of operational controls
    regarding legal and regulatory compliance, and
 | 
|   | 
    |   | 
         
 | 
    
    reviewing our processes for managing and mitigating operational
    risk.
 | 
 
    As discussed in Item 1A. Risk Factors, hazards inhere in
    the drilling, well-servicing and workover industries, including
    blowouts, cratering, explosions, fires, loss of well control,
    loss of or damage to the wellbore or underground reservoir,
    damaged or lost drilling equipment and damage or loss from
    inclement weather or natural disasters. Any of these hazards
    could result in personal injury or death, damage to or
    destruction of equipment and facilities, suspension of
    operations, environmental damage and damage to the property of
    others. Our offshore operations are also subject to the hazards
    of marine operations, including capsizing, grounding, collision,
    damage from hurricanes and heavy weather or sea conditions and
    unsound ocean bottom conditions. Our operations are also subject
    to risks arising out of war, civil disturbances or other
    political events. We seek to mitigate these risks by
    (i) avoiding them to the degree possible through sound
    operational and safety practices, (ii) contractual risk
    allocation and (iii) insurance.
 
    We employ a top-down focus on safety as one of our main
    priorities. From our Chairman and Chief Executive Officer, to
    the Boards Technical & Safety Committee, through
    all levels of operations, a shared focus on safety is reflected
    in both our historical and ongoing safety performance. Although
    we strive to implement sound safety and security practices in
    every aspect of our operations, incidents still occur.
 
    Drilling contracts typically apportion the risks of loss between
    a drilling contractor and the operator, and we seek to obtain
    indemnification from our customers by contract for some of these
    risks. Under the standard industry drilling contract, each party
    bears responsibility for its own people and property, and other
    commonly accepted significant risks are allocated as follows:
 
     | 
     | 
     | 
    |   | 
         
 | 
    
    risk of damage to the underground reservoir is allocated to the
    operator;
 | 
|   | 
    |   | 
         
 | 
    
    loss of or damage to the hole is allocated to the operator,
    although the contractor may take responsibility for redrilling
    the hole at some negotiated discount if the loss is due to the
    contractors negligence or willful misconduct;
 | 
|   | 
    |   | 
         
 | 
    
    pollution is allocated to the contractor if it is above the
    surface of the ground or water and emanates from the
    contractors equipment, with the risk of all other
    pollution allocated to the operator;
 | 
|   | 
    |   | 
         
 | 
    
    the costs associated with bringing a wild well under control are
    allocated to the operator; and
 | 
|   | 
    |   | 
         
 | 
    
    where deemed necessary, some measure of political risk is
    allocated to the operator.
 | 
 
    Although we strive to achieve this risk structure in our
    customer contracts, the actual risk structure may vary
    considerably from contract to contract, and there can be no
    assurance that we will be able to assign our risk for
    catastrophic or other events. Many operators seek to reduce
    their exposure for major risks in a number of ways, usually by
    shifting the risk to the contractor when its willful misconduct,
    gross negligence or even ordinary negligence leads to the damage
    at issue. We resist the imposition of such liabilities and
    attempt to negotiate monetary caps when we are unable to assign
    these risks altogether. Nevertheless, we sometimes accept
    liability for major risks when we determine from an overall
    risk-reward analysis, considering both risk inherent in the
    particular work and available insurance coverage, that such
    risks are within our risk tolerance.
 
    Finally, to the extent that we are unable to transfer risks to
    our customers through contractual indemnities or our customers
    fail to honor their contractual responsibilities, we seek to
    limit our exposure through
    
    50
 
    insurance. We maintain coverage for personal injury and property
    damage, business interruption, political and war risk,
    contractual liabilities, sudden and accidental pollution,
    well-control costs and other potential liabilities. We believe
    that we carry sufficient insurance coverage and limits to
    protect us against our exposure to major risks. However, there
    is no assurance that such insurance will adequately protect us
    against liability from all of the consequences of the hazards
    described above. Moreover, our insurance coverage generally
    provides that we assume a portion of the risk in the form of a
    deductible or self-insured retention.
 
    Recent
    Legislation and Actions
 
    In February 2009, Congress enacted the American Recovery and
    Reinvestment Act of 2009 (the Stimulus Act). The
    Stimulus Act is intended to provide a stimulus to the
    U.S. economy, including relief to companies related to
    income on debt repurchases and exchanges at a discount,
    expansion of unemployment benefits to former employees and other
    social welfare provisions. The Stimulus Act has not had a
    significant impact on our consolidated financial statements.
 
    In March 2010, the EPA announced that it would study the
    potential adverse impact that hydraulic fracturing may have on
    water quality and public health. On September 14, 2010, the
    EPA sent letters to nine companies that perform fracturing
    services in the United States, including Superior. The letter
    requests information regarding the chemical composition of
    fluids used, information about the impacts of the chemicals on
    human health and the environment, standard operating procedures
    at fracturing sites and a list of sites where the companies have
    carried out the process. The EPA has indicated that it plans to
    perform more detailed analyses based on the information received
    and would seek to compel submission of the information if
    necessary. Nabors is and intends to continue providing requested
    information and cooperating with the EPAs investigation.
    Legislation has also been introduced in the U.S. Congress
    and some states that would require the disclosure of chemicals
    used in the fracturing process. If enacted, the legislation
    could require fracturing activities to meet permitting and
    financial assurance requirements, adhere to certain construction
    specifications, fulfill monitoring, reporting and recordkeeping
    requirements and meet plugging and abandonment requirements. Any
    new laws regulating fracturing activities could cause
    operational delays or increased costs in exploration and
    production, which could adversely affect the demand for
    fracturing services. We cannot currently predict what the
    findings of the investigation will be, what regulatory changes
    might be implemented, or what the ultimate impact may be on the
    results of our Pressure Pumping operating segment.
 
    Recent
    Accounting Pronouncements
 
    In December 2008, the SEC issued a Final Rule,
    Modernization of Oil and Gas Reporting. This rule
    revises some of the oil and gas reporting disclosures in
    Regulation S-K
    and
    Regulation S-X
    under the Securities Act and the Exchange Act, as well as
    Industry Guide 2. Effective December 31, 2009, the FASB
    issued revised guidance that substantially aligned the oil and
    gas accounting disclosures with the SECs Final Rule. The
    amendments are designed to modernize and update oil and gas
    disclosure requirements to align them with current practices and
    changes in technology. Additionally, this new accounting
    standard requires that entities use
    12-month
    average natural gas and oil prices when calculating the
    quantities of proved reserves and performing the full-cost
    ceiling test calculation. The new standard also clarified that
    an entitys equity-method investments must be considered in
    determining whether it has significant oil and gas activities.
    The disclosure requirements are effective for registration
    statements filed on or after January 1, 2010 and for annual
    financial statements filed on or after January 1, 2010. The
    FASB provided a one-year deferral of the disclosure requirements
    if an entity became subject to the requirements because of a
    change to the definition of significant oil and gas activities.
    When operating results from our wholly owned oil and gas
    activities are considered with operating results from our
    unconsolidated oil and gas joint ventures, which we account for
    under the equity method of accounting, we have significant oil
    and gas activities under the new definition. Our oil and gas
    disclosures are provided in Note 24 
    Supplemental Information on Oil and Gas Exploration and
    Production Activities in Part II Item 8. 
    Financial Statements and Supplementary Data.
 
    Effective January 1, 2010, we adopted the revised
    provisions relating to consolidation of variable interest
    entities within the Consolidations Topic of the ASC. The revised
    provisions replaced the quantitative approach to identify a
    variable interest entity with a qualitative approach that
    focuses on an entitys control and ability
    
    51
 
    to direct the variable interest entitys activities. The
    application of these provisions did not have a material impact
    on our consolidated financial statements.
 
    The FASB issued new guidance relating to revenue recognition for
    contractual arrangements with multiple revenue-generating
    activities. The ASC Topic for revenue recognition includes
    identification of a unit of accounting and how arrangement
    consideration should be allocated to separate the units of
    accounting, when applicable. The new guidance, including
    expanded disclosures, will apply to us for contracts entered
    into after June 15, 2010. We are evaluating the impact this
    guidance may have on future contracts. Historically, we have not
    entered into contractual agreements with multiple
    revenue-generating activities.
 
    Related-Party
    Transactions
 
    Nabors and its Chairman and Chief Executive Officer, its Deputy
    Chairman, President and Chief Operating Officer, and certain
    other key employees entered into split-dollar life insurance
    agreements, pursuant to which we paid a portion of the premiums
    under life insurance policies with respect to these individuals
    and, in some instances, members of their families. These
    agreements provide that we are reimbursed the premium payments
    upon the occurrence of specified events, including the death of
    an insured individual. Any recovery of premiums paid by Nabors
    could be limited to the cash surrender value of the policies
    under certain circumstances. As such, the values of these
    policies are recorded at their respective cash surrender values
    in our consolidated balance sheets. We have made premium
    payments to date totaling $11.7 million related to these
    policies. The cash surrender value of these policies of
    approximately $9.5 million and $9.3 million is
    included in other long-term assets in our consolidated balance
    sheets as of December 31, 2010 and 2009, respectively.
 
    Under the Sarbanes-Oxley Act of 2002, the payment of premiums by
    Nabors under the agreements with our Chairman and Chief
    Executive Officer and with our Deputy Chairman, President and
    Chief Operating Officer could be deemed to be prohibited loans
    by us to these individuals. Consequently, we have paid no
    premiums related to our agreements with these individuals since
    the adoption of the Sarbanes-Oxley Act.
 
    In the ordinary course of business, we enter into various rig
    leases, rig transportation and related oilfield services
    agreements with our unconsolidated affiliates at market prices.
    Revenues from business transactions with these affiliated
    entities totaled $271.6 million, $327.3 million and
    $285.3 million for the years ended December 31, 2010,
    2009 and 2008, respectively. Expenses from business transactions
    with these affiliated entities totaled $3.4 million,
    $9.8 million and $9.6 million for the years ended
    December 31, 2010, 2009 and 2008, respectively.
    Additionally, we had accounts receivable from these affiliated
    entities of $97.8 million and $104.2 million as of
    December 31, 2010 and 2009, respectively. We had accounts
    payable to these affiliated entities of $12.7 million and
    $14.8 million as of December 31, 2010 and 2009,
    respectively, and long-term payables with these affiliated
    entities of $.8 million as of each of December 31,
    2010 and 2009, respectively, which is included in other
    long-term liabilities.
 
    In addition to the equity investment in our unconsolidated
    U.S. oil and gas joint venture, in April 2010 we purchased
    $20.0 million face value of NFR Energy LLCs
    9.75% senior notes. These notes mature in 2017 with
    interest payable semi-annually on February 15 and
    August 15. During 2010, we recognized $1.4 million in
    interest income from these notes.
 
    We own an interest in Shona Energy Company, LLC
    (Shona), a company of which Mr. Payne, an
    independent member of our Board of Directors, is the Chairman
    and Chief Executive Officer. During the fourth quarter of 2008,
    we purchased 1.8 million common shares of Shona for
    $.9 million. During the first quarter of 2010, we purchased
    shares of Shonas preferred stock and warrants to purchase
    additional common shares for $.9 million. We currently hold
    a minority interest of approximately 10% of the issued and
    outstanding shares of Shona.
 
    Critical
    Accounting Estimates
 
    The preparation of our financial statements in conformity with
    GAAP requires management to make certain estimates and
    assumptions. These estimates and assumptions affect the reported
    amounts of assets and
    
    52
 
    liabilities, the disclosures of contingent assets and
    liabilities at the balance sheet date and the amounts of
    revenues and expenses recognized during the reporting period. We
    analyze our estimates based on our historical experience and
    various other assumptions that we believe to be reasonable under
    the circumstances. However, actual results could differ from our
    estimates. The following is a discussion of our critical
    accounting estimates. Management considers an accounting
    estimate to be critical if:
 
     | 
     | 
     | 
    |   | 
         
 | 
    
    it requires assumptions to be made that were uncertain at the
    time the estimate was made; and
 | 
|   | 
    |   | 
         
 | 
    
    changes in the estimate or different estimates that could have
    been selected could have a material impact on our consolidated
    financial position or results of operations.
 | 
 
    For a summary of all of our significant accounting policies, see
    Note 2  Summary of Significant Accounting
    Policies in Part II, Item 8.  Financial
    Statements and Supplementary Data.
 
    Financial Instruments.  As defined in the ASC,
    fair value is the price that would be received upon a sale of an
    asset or paid upon a transfer of a liability in an orderly
    transaction between market participants at the measurement date
    (exit price). We utilize market data or assumptions that market
    participants would use in pricing the asset or liability,
    including assumptions about risk and the risks inherent in the
    inputs to the valuation technique. These inputs can be readily
    observable, market-corroborated, or generally unobservable. We
    primarily apply the market approach for recurring fair value
    measurements and endeavor to utilize the best information
    available. Accordingly, we employ valuation techniques that
    maximize the use of observable inputs and minimize the use of
    unobservable inputs. The use of unobservable inputs is intended
    to allow for fair value determinations in situations where there
    is little, if any, market activity for the asset or liability at
    the measurement date. We are able to classify fair value
    balances utilizing a fair-value hierarchy based on the
    observability of those inputs. Under the fair-value hierarchy
 
     | 
     | 
     | 
    |   | 
         
 | 
    
    Level 1 measurements include unadjusted quoted market
    prices for identical assets or liabilities in an active market;
 | 
|   | 
    |   | 
         
 | 
    
    Level 2 measurements include quoted market prices for
    identical assets or liabilities in an active market that have
    been adjusted for items such as effects of restrictions for
    transferability and those that are not quoted but are observable
    through corroboration with observable market data, including
    quoted market prices for similar assets; and
 | 
|   | 
    |   | 
         
 | 
    
    Level 3 measurements include those that are unobservable
    and of a highly subjective measure.
 | 
 
    Depreciation of Property, Plant and
    Equipment.  The drilling, workover and
    well-servicing and pressure pumping industries are very capital
    intensive. Property, plant and equipment represented 67% of our
    total assets as of December 31, 2010, and depreciation
    constituted 19% of our total costs and other deductions for the
    year ended December 31, 2010.
 
    Depreciation for our primary operating assets, drilling and
    workover rigs, is calculated based on the
    units-of-production
    method. For each day a rig is operating, we depreciate it over
    an approximate 4,900-day period, with the exception of our
    jack-up rigs
    which are depreciated over an 8,030-day period, after provision
    for salvage value. For each day a rig asset is not operating, it
    is depreciated over an assumed depreciable life of
    20 years, with the exception of our
    jack-up
    rigs, where a
    30-year
    depreciable life is typically used, after provision for salvage
    value.
 
    Depreciation on our buildings, well-servicing rigs, oilfield
    hauling and mobile equipment, marine transportation and supply
    vessels, aircraft equipment, and other machinery and equipment
    is computed using the straight-line method over the estimated
    useful life of the asset after provision for salvage value
    (buildings  10 to 30 years; well-servicing
    rigs  3 to 15 years; marine transportation and
    supply vessels  10 to 25 years; aircraft
    equipment  5 to 20 years; oilfield hauling and
    mobile equipment and other machinery and equipment  3
    to 10 years).
 
    These depreciation periods and the salvage values of our
    property, plant and equipment were determined through an
    analysis of the useful lives of our assets and based on our
    experience with the salvage values of these assets.
    Periodically, we review our depreciation periods and salvage
    values for reasonableness given
    
    53
 
    current conditions. Depreciation of property, plant and
    equipment is therefore based upon estimates of the useful lives
    and salvage value of those assets. Estimation of these items
    requires significant management judgment. Accordingly,
    management believes that accounting estimates related to
    depreciation expense recorded on property, plant and equipment
    are critical.
 
    There have been no factors related to the performance of our
    portfolio of assets, changes in technology or other factors that
    indicate that these estimates do not continue to be appropriate.
    Accordingly, for the years ended December 31, 2010, 2009
    and 2008, no significant changes have been made to the
    depreciation rates applied to property, plant and equipment, the
    underlying assumptions related to estimates of depreciation, or
    the methodology applied. However, certain events could occur
    that would materially affect our estimates and assumptions
    related to depreciation. Unforeseen changes in operations or
    technology could substantially alter managements
    assumptions regarding our ability to realize the return on our
    investment in operating assets and therefore affect the useful
    lives and salvage values of our assets.
 
    Impairment of Long-Lived Assets.  As discussed
    above, the drilling, workover and well-servicing and pressure
    pumping industry is very capital intensive. We review our assets
    for impairment when events or changes in circumstances indicate
    that the carrying amounts of property, plant and equipment may
    not be recoverable. An impairment loss is recorded in the period
    in which it is determined that the sum of estimated future cash
    flows, on an undiscounted basis, is less than the carrying
    amount of the long-lived asset. Such determination requires us
    to make judgments regarding long-term forecasts of future
    revenues and costs related to the assets subject to review in
    order to determine the future cash flows associated with the
    assets. These long-term forecasts are uncertain because they
    require assumptions about demand for our products and services,
    future market conditions, technological advances in the industry
    and changes in regulations governing the industry. Significant
    and unanticipated changes to the assumptions could result in
    future impairments. As the determination of whether impairment
    charges should be recorded on our long-lived assets is subject
    to significant management judgment and an impairment of these
    assets could result in a material charge on our consolidated
    statements of income (loss), management believes that accounting
    estimates related to impairment of long-lived assets are
    critical.
 
    Assumptions made in the determination of future cash flows are
    made with the involvement of management personnel at the
    operational level where the most specific knowledge of market
    conditions and other operating factors exists. For the years
    ended December 31, 2010, 2009 and 2008, no significant
    changes have been made to the methodology utilized to determine
    future cash flows.
 
    Given the nature of the evaluation of future cash flows and the
    application to specific assets and specific times, it is not
    possible to reasonably quantify the impact of changes in these
    assumptions. A significantly prolonged period of lower oil and
    natural gas prices could continue to adversely affect the demand
    for and prices of our services, which could result in future
    impairment charges.
 
    Impairment of Goodwill and Intangible
    Assets.  Goodwill represented 4.2% of our total
    assets as of December 31, 2010. We review goodwill and
    intangible assets with indefinite lives for impairment annually
    or more frequently if events or changes in circumstances
    indicate that the carrying amount of such goodwill and
    intangible assets exceed their fair value. During the second
    quarter of 2010, we performed our impairment tests of goodwill
    and intangible assets for all of our reporting units within our
    operating segments. These reporting units consist of our
    contract drilling segments: U.S. Lower 48 Land Drilling,
    U.S. Land Well-servicing, U.S. Offshore, Alaska,
    Canada and International; our oil and gas segment; and our other
    operating segments: Canrig Drilling Technology Ltd., Ryan Energy
    Technologies and Nabors Blue Sky Ltd. The impairment test
    involves comparing the estimated fair value of the reporting
    unit to its carrying amount. If the carrying amount of the
    reporting unit exceeds its fair value, a second step is required
    to measure the goodwill impairment loss. This second step
    compares the implied fair value of the reporting units
    goodwill to the carrying amount of that goodwill. If the
    carrying amount of the reporting units goodwill exceeds
    the implied fair value of the goodwill, an impairment loss is
    recognized in an amount equal to the excess. Our impairment test
    results required the second step measurement for one reporting
    unit during each of 2010 and 2009.
 
    The fair values calculated in these impairment tests are
    determined using discounted cash flow models involving
    assumptions based on our utilization of rigs or aircraft,
    revenues and earnings from affiliates, as well
    
    54
 
    as direct costs, general and administrative costs, depreciation,
    applicable income taxes, capital expenditures and working
    capital requirements. Our discounted cash flow projections for
    each reporting unit were based on financial forecasts. The
    future cash flows were discounted to present value using
    discount rates that are determined to be appropriate for each
    reporting unit. Terminal values for each reporting unit were
    calculated using a Gordon Growth methodology with a long-term
    growth rate of 3%. We believe the fair value estimated for
    purposes of these tests represent a Level 3 fair value
    measurement.
 
    During 2010, 2009 and 2008, we recognized goodwill impairments
    of approximately $10.7 million, $14.7 million and
    $150.0 million, respectively. During 2008, we impaired the
    entire goodwill balance of $145.4 million of our Canada
    Well-servicing and Drilling operating segment and recorded an
    impairment of $4.6 million to Nabors Blue Sky Ltd., one of
    our Canadian subsidiaries reported in our Other Operating
    segments. During 2009, we impaired the remaining goodwill
    balance of $14.7 million of Nabors Blue Sky Ltd. The
    impairment charges were deemed necessary due to the continued
    downturn in the oil and gas industry in Canada and the lack of
    certainty regarding eventual recovery in the value of these
    operations. This downturn has led to reduced capital spending by
    our customers and diminished demand for our drilling services
    and for immediate access to remote drilling sites. The
    impairment charge during 2010 was recorded in our
    U.S. Offshore operating segment and was deemed necessary
    due to the uncertainty of utilization of some of our rigs as a
    result of changes in our customers plans for future
    drilling operations in the Gulf of Mexico. Many of our customers
    have suspended drilling operations in the Gulf of Mexico,
    largely as a result of their inability to obtain government
    permits. A significantly prolonged period of lower oil and
    natural gas prices or changes in laws and regulations could
    continue to adversely affect the demand for and prices of our
    services, which could result in future goodwill impairment
    charges for other reporting units due to the potential impact on
    our estimate of our future operating results.
 
    Oil and Gas Properties.  We follow the
    successful-efforts method of accounting for our consolidated
    subsidiaries oil and gas activities. Under the
    successful-efforts method, lease acquisition costs and all
    development costs are capitalized. Our provision for depletion
    is based on these capitalized costs and is determined on a
    property-by-property
    basis using the
    units-of-production
    method. Proved property acquisition costs are amortized over
    total proved reserves. Costs of wells and related equipment and
    facilities are amortized over the life of proved developed
    reserves. Estimated fair value of proved and unproved properties
    includes the estimated present value of all reasonably expected
    future production, prices and costs. Proved oil and gas
    properties are reviewed when circumstances suggest the need for
    such a review and, are written down to their estimated fair
    value, if required. Unproved properties are reviewed to
    determine if there has been impairment of the carrying value and
    when circumstances suggest an impairment has occurred, are
    written down to their estimated fair value in that period. The
    estimated fair value of our proved reserves generally declines
    when there is a significant and sustained decline in oil and
    natural gas prices. During 2010, 2009 and 2008, our impairment
    tests on our wholly owned oil and gas assets of our Oil and Gas
    operating segment resulted in impairment charges of
    $137.8 million, $48.6 million and $21.5 million,
    respectively. As discussed above in Recent Accounting
    Pronouncements, we adopted new guidance relating to the
    manner in which our oil and gas reserves are estimated as of
    December 31, 2009.
 
    Exploratory drilling costs are capitalized until the results are
    determined. If proved reserves are not discovered, the
    exploratory drilling costs are expensed. Interest costs related
    to financing major oil and gas projects in progress are
    capitalized until the projects are evaluated or until the
    projects are substantially complete and ready for their intended
    use if the projects are evaluated as successful. Other
    exploratory costs are expensed as incurred.
 
    Our unconsolidated oil and gas joint ventures, which we account
    for under the equity method of accounting, utilize the full-cost
    method of accounting for costs related to oil and natural gas
    properties. Under this method, all such costs (for both
    productive and nonproductive properties) are capitalized and
    amortized on an aggregate basis over the estimated lives of the
    properties using the
    units-of-production
    method. However, these capitalized costs are subject to a
    ceiling test which limits such pooled costs to the aggregate of
    the present value of future net revenues attributable to proved
    oil and natural gas reserves, discounted at 10%, plus the lower
    of cost or market value of unproved properties. As discussed
    above in Recent Accounting Pronouncements and in relation
    to the full-cost ceiling test, our unconsolidated oil and gas
    joint ventures
    
    55
 
    changed the manner in which their oil and gas reserves are
    estimated and the manner in which they calculate the ceiling
    limit on capitalized oil and gas costs as of December 31,
    2009. Under the new guidance, future revenues for purposes of
    the ceiling test are valued using a
    12-month
    average price, adjusted for the impact of derivatives accounted
    for as cash flow hedges as prescribed by the SEC rules. No
    full-cost ceiling test writedowns were recorded by our
    unconsolidated oil and gas joint ventures during 2010. During
    2009, our proportionate share of those ventures full-cost
    ceiling test writedowns was $237.1 million.
 
    During 2008, our unconsolidated oil and gas joint ventures
    evaluated the full-cost ceiling using then-current prices for
    oil and natural gas, adjusted for the impact of derivatives
    accounted for as cash flow hedges. As a result, our
    proportionate share of those ventures full-cost ceiling
    test writedowns was $228.3 million.
 
    A significantly prolonged period of lower oil and natural gas
    prices or reserve quantities could continue to adversely affect
    the demand for and prices of our services, which could result in
    future impairment charges due to the potential impact on our
    estimate of our future operating results.
 
    Oil and Gas Reserves.  Evaluations of oil and
    gas reserves are integral to making investment decisions about
    oil and gas properties such as whether development should
    proceed. Oil and gas reserve quantities are also used as the
    basis for calculating
    unit-of-production
    depreciation rates and for evaluating impairment. Oil and gas
    reserves include both proved and unproved reserves. Consistent
    with the definitions provided by the SEC, proved oil and gas
    reserves are those quantities of oil and gas, which, by analysis
    of geoscience and engineering data, can be estimated with
    reasonable certainty to be economically producible from a given
    date forward, known reservoirs, and under existing economic
    conditions. Unproved reserves are those with less than
    reasonable certainty of recoverability and include probable
    reserves. Probable reserves are reserves that are more likely to
    be recovered than not.
 
    Estimation of proved reserves, which is based on the requirement
    of reasonable certainty, is an ongoing process involving
    rigorous technical evaluations, commercial and market
    assessment, and detailed analysis of well information such as
    flow rates and reservoir pressure declines. Although we are
    reasonably certain that proved reserves will be produced, the
    timing and amount recovered can be affected by a number of
    factors including completion of development projects, reservoir
    performance, regulatory approvals and significant changes in
    long-term oil and gas price levels.
 
    Income Taxes.  Deferred taxes represent a
    substantial liability for Nabors. For financial reporting
    purposes, management determines our current tax liability as
    well as those taxes incurred as a result of current operations
    yet deferred until future periods. In accordance with the
    liability method of accounting for income taxes as specified in
    the Income Taxes Topic of the ASC, the provision for income
    taxes is the sum of income taxes both currently payable and
    deferred. Currently payable taxes represent the liability
    related to our income tax return for the current year while the
    net deferred tax expense or benefit represents the change in the
    balance of deferred tax assets or liabilities reported on our
    consolidated balance sheets. The tax effects of unrealized gains
    and losses on investments and derivative financial instruments
    are recorded through accumulated other comprehensive income
    (loss) within equity. The changes in deferred tax assets or
    liabilities are determined based upon changes in differences
    between the basis of assets and liabilities for financial
    reporting purposes and the basis of assets and liabilities for
    tax purposes as measured by the enacted tax rates that
    management estimates will be in effect when these differences
    reverse. Management must make certain assumptions regarding
    whether tax differences are permanent or temporary and must
    estimate the timing of their reversal, and whether taxable
    operating income in future periods will be sufficient to fully
    recognize any gross deferred tax assets. Valuation allowances
    are established to reduce deferred tax assets when it is more
    likely than not that some portion or all of the deferred tax
    assets will not be realized. In determining the need for
    valuation allowances, management has considered and made
    judgments and estimates regarding estimated future taxable
    income and ongoing prudent and feasible tax planning strategies.
    These judgments and estimates are made for each tax jurisdiction
    in which we operate as the calculation of deferred taxes is
    completed at that level. Further, under U.S. federal tax
    law, the amount and availability of loss carryforwards (and
    certain other tax attributes) are subject to a variety of
    interpretations and restrictive tests applicable to Nabors and
    our subsidiaries. The utilization of such carryforwards could be
    limited or effectively lost upon certain changes in ownership.
    Accordingly, although we believe substantial loss carryforwards
    are available to us, no assurance
    
    56
 
    can be given concerning the realization of such loss
    carryforwards, or whether or not such loss carryforwards will be
    available in the future. These loss carryforwards are also
    considered in our calculation of taxes for each jurisdiction in
    which we operate. Additionally, we record reserves for uncertain
    tax positions that are subject to a significant level of
    management judgment related to the ultimate resolution of those
    tax positions. Accordingly, management believes that the
    estimate related to the provision for income taxes is critical
    to our results of operations. See Part I,
    Item 1A.  Risk Factors  We may
    have additional tax liabilities and Note 12 
    Income Taxes in Part II, Item 8.  Financial
    Statements and Supplementary Data for additional discussion.
 
    We are subject to income taxes in both the United States and
    numerous other jurisdictions. Significant judgment is required
    in determining our worldwide provision for income taxes. In the
    ordinary course of our business, there are many transactions and
    calculations where the ultimate tax determination is uncertain.
    We are regularly audited by tax authorities. Although we believe
    our tax estimates are reasonable, the final determination of tax
    audits and any related litigation could be materially different
    than that reflected in historical income tax provisions and
    accruals. An audit or litigation could materially affect our
    financial position, income tax provision, net income, or cash
    flows in the period or periods challenged. However, certain
    events could occur that would materially affect
    managements estimates and assumptions regarding the
    deferred portion of our income tax provision, including
    estimates of future tax rates applicable to the reversal of tax
    differences, the classification of timing differences as
    temporary or permanent, reserves recorded for uncertain tax
    positions and any valuation allowance recorded as a reduction to
    our deferred tax assets. Managements assumptions related
    to the preparation of our income tax provision have historically
    proved to be reasonable in light of the ultimate amount of tax
    liability due in all taxing jurisdictions.
 
    For the year ended December 31, 2010, our provision for
    income taxes from continuing operations was
    $(24.8) million, consisting of $(83.8) million of
    current tax benefit and $59.0 million of deferred tax
    expense. Changes in managements estimates and assumptions
    regarding the tax rate applied to deferred tax assets and
    liabilities, the ability to realize the value of deferred tax
    assets, or the timing of the reversal of tax basis differences
    could potentially impact the provision for income taxes and
    could potentially change the effective tax rate. A 1% change in
    the effective tax rate from (30.2%) to (29.2%) would increase
    the current year income tax provision by approximately
    $.8 million.
 
    Self-Insurance Reserves.  Our operations are
    subject to many hazards inherent in the drilling, workover and
    well-servicing and pressure pumping industries, including
    blowouts, cratering, explosions, fires, loss of well control,
    loss of or damage to the wellbore or underground reservoir,
    damaged or lost drilling equipment and damage or loss from
    inclement weather or natural disasters. Any of these hazards
    could result in personal injury or death, damage to or
    destruction of equipment and facilities, suspension of
    operations, environmental and natural resources damage and
    damage to the property of others. Our offshore operations are
    also subject to the hazards of marine operations including
    capsizing, grounding, collision and other damage from hurricanes
    and heavy weather or sea conditions and unsound ocean bottom
    conditions. Our operations are subject to risks of war, civil
    disturbances or other political events.
 
    Accidents may occur, we may be unable to obtain desired
    contractual indemnities, and our insurance may prove inadequate
    in certain cases. There is no assurance that such insurance or
    indemnification agreements will adequately protect us against
    liability from all of the consequences of the hazards described
    above. Moreover, our insurance coverage generally provides that
    we assume a portion of the risk in the form of a deductible or
    self-insured retention.
 
    Based on the risks discussed above, it is necessary for us to
    estimate the level of our liability related to insurance and
    record reserves for these amounts in our consolidated financial
    statements. Reserves related to self-insurance are based on the
    facts and circumstances specific to the claims and our past
    experience with similar claims. The actual outcome of
    self-insured claims could differ significantly from estimated
    amounts. We maintain actuarially determined accruals in our
    consolidated balance sheets to cover self-insurance retentions
    for workers compensation, employers liability,
    general liability and automobile liability claims. These
    accruals are based on certain assumptions developed utilizing
    historical data to project future losses. Loss estimates in the
    calculation of these accruals are adjusted based upon actual
    claim settlements and
    
    57
 
    reported claims. These loss estimates and accruals recorded in
    our financial statements for claims have historically been
    reasonable in light of the actual amount of claims paid.
 
    Because the determination of our liability for self-insured
    claims is subject to significant management judgment and in
    certain instances is based on actuarially estimated and
    calculated amounts, and because such liabilities could be
    material in nature, management believes that accounting
    estimates related to self-insurance reserves are critical.
 
    During 2010, 2009 and 2008, no significant changes were made to
    the methodology utilized to estimate insurance reserves. For
    purposes of earnings sensitivity analysis, if the
    December 31, 2010 reserves for insurance were adjusted
    (increased or decreased) by 10%, total costs and other
    deductions would change by $14.6 million, or .4%.
 
    Fair Value of Assets Acquired and Liabilities
    Assumed.  We have completed a number of
    acquisitions in recent years as discussed in
    Note 5  Fair Value Measurements in Part II,
    Item 8.  Financial Statements and Supplementary
    Data. In conjunction with our accounting for these acquisitions,
    it was necessary for us to estimate the values of the assets
    acquired and liabilities assumed in the various business
    combinations using various assumptions. These estimates may be
    affected by such factors as changing market conditions,
    technological advances in the industry or changes in regulations
    governing the industry. The most significant assumptions, and
    the ones requiring the most judgment, involve the estimated fair
    values of property, plant and equipment, and the resulting
    amount of goodwill, if any. Unforeseen changes in operations or
    technology could substantially alter managements
    assumptions and could result in lower estimates of values of
    acquired assets or of future cash flows. This could result in
    impairment charges being recorded in our consolidated statements
    of income (loss). As the determination of the fair value of
    assets acquired and liabilities assumed is subject to
    significant management judgment and a change in purchase price
    allocations could result in a material difference in amounts
    recorded in our consolidated financial statements, management
    believes that accounting estimates related to the valuation of
    assets acquired and liabilities assumed are critical.
 
    The determination of the fair value of assets and liabilities is
    based on the market for the assets and the settlement value of
    the liabilities. These estimates are made by management based on
    our experience with similar assets and liabilities. During 2010,
    2009 and 2008, no significant changes were made to the
    methodology utilized to value assets acquired or liabilities
    assumed. Our estimates of the fair values of assets acquired and
    liabilities assumed have proved to be reliable in the past.
 
    Given the nature of the evaluation of the fair value of assets
    acquired and liabilities assumed and the application to specific
    assets and liabilities, it is not possible to reasonably
    quantify the impact of changes in these assumptions.
 
    Share-Based Compensation.  We have historically
    compensated our executives and employees, in part, with stock
    options and restricted stock. Based on the requirements of the
    Stock Compensation Topic of the ASC, we accounted for stock
    option and restricted stock awards in 2008, 2009 and 2010 using
    a fair-value based method, resulting in compensation expense for
    stock-based awards being recorded in our consolidated statements
    of income (loss). Determining the fair value of stock-based
    awards at the grant date requires judgment, including estimating
    the expected term of stock options, the expected volatility of
    our stock and expected dividends. In addition, judgment is
    required in estimating the amount of stock-based awards that are
    expected to be forfeited. Because the determination of these
    various assumptions is subject to significant management
    judgment and different assumptions could result in material
    differences in amounts recorded in our consolidated financial
    statements, management believes that accounting estimates
    related to the valuation of stock-based awards are critical.
 
    The assumptions used to estimate the fair market value of our
    stock options are based on historical and expected performance
    of our common shares in the open market, expectations with
    regard to the pattern with which our employees will exercise
    their options and the likelihood that dividends will be paid to
    holders of our common shares. During 2010, 2009 and 2008, no
    significant changes were made to the methodology utilized to
    determine the assumptions used in these calculations.
    
    58
 
     | 
     | 
    | 
    ITEM 7A.  
 | 
    
    QUANTITATIVE
    AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
 | 
 
    We may be exposed to certain market risks arising from the use
    of financial instruments in the ordinary course of business.
    This risk arises primarily as a result of potential changes in
    the fair market value of financial instruments due to adverse
    fluctuations in foreign currency exchange rates, credit risk,
    interest rates, and marketable and non-marketable security
    prices as discussed below.
 
    Foreign Currency Risk.  We operate in a number
    of international areas and are involved in transactions
    denominated in currencies other than U.S. dollars, which
    exposes us to foreign exchange rate risk and foreign currency
    devaluation risk. The most significant exposures arise in
    connection with our operations in Venezuela and Canada, which
    usually are substantially unhedged.
 
    At various times, we utilize local currency borrowings (foreign
    currency-denominated debt), the payment structure of customer
    contracts and foreign exchange contracts to selectively hedge
    our exposure to exchange rate fluctuations in connection with
    monetary assets, liabilities, cash flows and commitments
    denominated in certain foreign currencies. A foreign exchange
    contract is a foreign currency transaction, defined as an
    agreement to exchange different currencies at a given future
    date and at a specified rate. A hypothetical 10% decrease in the
    value of all our foreign currencies relative to the
    U.S. dollar as of December 31, 2010 would result in a
    $12.2 million decrease in the fair value of our net
    monetary assets denominated in currencies other than
    U.S. dollars.
 
    Credit Risk.  Our financial instruments that
    potentially subject us to concentrations of credit risk consist
    primarily of cash equivalents, short-term and long-term
    investments, oil and gas financing receivables, accounts
    receivable and our range-cap-and-floor derivative instrument.
    Cash equivalents such as deposits and temporary cash investments
    are held by major banks or investment firms. Our short-term and
    long-term investments are managed within established guidelines
    which limit the amounts that may be invested with any one issuer
    and provide guidance as to issuer credit quality. We believe
    that the credit risk in our cash and investment portfolio is
    minimized as a result of the mix of our investments. In
    addition, our trade receivables are with a variety of U.S.,
    international and foreign-country national oil and gas
    companies. Management considers this credit risk to be limited
    due to the financial resources of these companies. We perform
    ongoing credit evaluations of our customers and we generally do
    not require material collateral. We do occasionally require
    prepayment of amounts from customers whose creditworthiness is
    in question prior to providing services to them. We maintain
    reserves for potential credit losses, and these losses
    historically have been within managements expectations.
 
    Interest Rate, and Marketable and Non-marketable Security
    Price Risk.   Our financial instruments that are
    potentially sensitive to changes in interest rates include the
    0.94% senior exchangeable notes, our 5.375%, 6.15%, 9.25%
    and 5.0% senior notes, our range-cap-and-floor derivative
    instrument, our investments in debt securities (including
    corporate, asset-backed, mortgage-backed debt and mortgage-CMO
    debt securities) and our investments in overseas funds that
    invest primarily in a variety of public and private
    U.S. and
    non-U.S. securities
    (including asset-backed and mortgage-backed securities, global
    structured-asset securitizations, whole-loan mortgages, and
    participations in whole loans and whole-loan mortgages), which
    are classified as long-term investments.
 
    We may utilize derivative financial instruments that are
    intended to manage our exposure to interest rate risks. We
    account for derivative financial instruments under the
    Derivatives Topic of the ASC. The use of derivative financial
    instruments could expose us to further credit risk and market
    risk. Credit risk in this context is the failure of a
    counterparty to perform under the terms of the derivative
    contract. When the fair value of a derivative contract is
    positive, the counterparty would owe us, which can create credit
    risk for us. When the fair value of a derivative contract is
    negative, we would owe the counterparty, and therefore, we would
    not be exposed to credit risk. We attempt to minimize credit
    risk in derivative instruments by entering into transactions
    with major financial institutions that have a significant asset
    base. Market risk related to derivatives is the adverse effect
    on the value of a financial instrument that results from changes
    in interest rates. We try to manage market risk associated with
    interest-rate contracts by establishing and monitoring
    parameters that limit the type and degree of market risk that we
    undertake.
 
    On October 21, 2002, we entered into an interest rate swap
    transaction with a third-party financial institution to hedge
    our exposure to changes in the fair value of $200 million
    of our fixed rate 5.375% senior
    
    59
 
    notes due 2012, which has been designated as a fair value hedge.
    Additionally on that date, we purchased a LIBOR range-cap and
    sold a LIBOR floor, in the form of a cashless collar, with the
    same third-party financial institution with the intention of
    mitigating and managing our exposure to changes in the
    three-month U.S. dollar LIBOR rate. This transaction does
    not qualify for hedge accounting treatment and any change in the
    cumulative fair value of this transaction is reflected as a gain
    or loss in our consolidated statements of income (loss). In June
    2004, we unwound $100 million of the $200 million
    range-cap-and-floor derivative instrument. During the fourth
    quarter of 2005, we unwound the interest rate swap resulting in
    a loss of $2.7 million, which has been deferred and will be
    recognized as an increase to interest expense over the remaining
    life of our 5.375% senior notes due 2012. During the year
    ended December 31, 2005, we recorded interest savings of
    $2.7 million related to our interest rate swap agreement
    accounted for as a fair value hedge, which served to reduce
    interest expense.
 
    The fair value of our range-cap-and-floor transaction is
    recorded as a derivative liability and included in other
    long-term liabilities. It totaled approximately
    $3.4 million and $3.3 million as of December 31,
    2010 and 2009, respectively. During 2010, 2009 and 2008, we
    recorded gains (losses) of approximately $(.1) million,
    $1.4 million and $(4.7) million, respectively, related
    to this derivative instrument; these amounts are included in
    losses (gains) on sales and retirements of long-lived assets and
    other expense (income), net in our consolidated statements of
    income (loss).
 
    A hypothetical 10% adverse shift in quoted interest rates as of
    December 31, 2010 would decrease the fair value of our
    range-cap-and-floor derivative instrument by approximately
    $.1 million.
 
    In September 2008 we entered into a three-month written put
    option for one million of our common shares with a strike price
    of $25 per share. We settled this contract during the fourth
    quarter of 2008 and paid cash of $22.6 million, net of the
    premium received, and recognized a loss of $9.9 million
    which is included in losses (gains) on sales and retirements of
    long-lived assets and other expense (income), net in our
    consolidated statements of income (loss).
 
    Fair Value of Financial Instruments.  We
    estimate the fair value of our financial instruments in
    accordance with the provisions of the Fair Value Measurements
    and Disclosures Topic of the ASC. The fair value of our fixed
    rate long-term debt is estimated based on quoted market prices
    or prices quoted from third-party financial institutions. The
    fair value of the subsidiary preferred stock was estimated based
    on the allocation of the purchase price. See
    Note 7  Acquisitions and Divestitures in
    Part II, Item 8.  Financial Statements and
    Supplementary Data for additional discussion. The carrying and
    fair values of these liabilities were as follows:
 
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| 
 
 | 
 
 | 
    December 31,
 | 
 
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
| 
 
 | 
 
 | 
    Effective 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Effective 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    Interest 
    
 | 
 
 | 
 
 | 
    Carrying 
    
 | 
 
 | 
 
 | 
    Fair 
    
 | 
 
 | 
 
 | 
    Interest 
    
 | 
 
 | 
 
 | 
    Carrying 
    
 | 
 
 | 
 
 | 
    Fair 
    
 | 
 
 | 
| 
 
 | 
 
 | 
    Rate
 | 
 
 | 
 
 | 
    Value
 | 
 
 | 
 
 | 
    Value
 | 
 
 | 
 
 | 
    Rate
 | 
 
 | 
 
 | 
    Value
 | 
 
 | 
 
 | 
    Value
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands, except interest rates)
 | 
 
 | 
|  
 | 
| 
 
    0.94% senior exchangeable notes due May 2011(1)
 
 | 
 
 | 
 
 | 
    6.13
 | 
    %
 | 
 
 | 
    $
 | 
    1,378,178
 | 
 
 | 
 
 | 
    $
 | 
    1,403,315
 | 
 
 | 
 
 | 
 
 | 
    6.13
 | 
    %
 | 
 
 | 
    $
 | 
    1,576,480
 | 
 
 | 
 
 | 
    $
 | 
    1,668,368
 | 
 
 | 
| 
 
    6.15% senior notes due February 2018
 
 | 
 
 | 
 
 | 
    6.42
 | 
    %
 | 
 
 | 
 
 | 
    966,276
 | 
 
 | 
 
 | 
 
 | 
    1,041,008
 | 
 
 | 
 
 | 
 
 | 
    6.42
 | 
    %
 | 
 
 | 
 
 | 
    965,066
 | 
 
 | 
 
 | 
 
 | 
    992,531
 | 
 
 | 
| 
 
    9.25% senior notes due January 2019
 
 | 
 
 | 
 
 | 
    9.33
 | 
    %
 | 
 
 | 
 
 | 
    1,125,000
 | 
 
 | 
 
 | 
 
 | 
    1,393,943
 | 
 
 | 
 
 | 
 
 | 
    9.40
 | 
    %
 | 
 
 | 
 
 | 
    1,125,000
 | 
 
 | 
 
 | 
 
 | 
    1,403,719
 | 
 
 | 
| 
 
    5.00% senior notes due September 2020
 
 | 
 
 | 
 
 | 
    5.20
 | 
    %
 | 
 
 | 
 
 | 
    697,037
 | 
 
 | 
 
 | 
 
 | 
    678,335
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    5.375% senior notes due August 2012(2)
 
 | 
 
 | 
 
 | 
    5.61
 | 
    %
 | 
 
 | 
 
 | 
    273,977
 | 
 
 | 
 
 | 
 
 | 
    291,500
 | 
 
 | 
 
 | 
 
 | 
    5.69
 | 
    %
 | 
 
 | 
 
 | 
    273,350
 | 
 
 | 
 
 | 
 
 | 
    289,072
 | 
 
 | 
| 
 
    Subsidiary preferred stock
 
 | 
 
 | 
 
 | 
    4.0
 | 
    %
 | 
 
 | 
 
 | 
    69,188
 | 
 
 | 
 
 | 
 
 | 
    68,625
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Other
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    2,676
 | 
 
 | 
 
 | 
 
 | 
    2,676
 | 
 
 | 
 
 | 
 
 | 
    4.50
 | 
    %
 | 
 
 | 
 
 | 
    872
 | 
 
 | 
 
 | 
 
 | 
    872
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    $
 | 
    4,512,332
 | 
 
 | 
 
 | 
    $
 | 
    4,879,402
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    $
 | 
    3,940,768
 | 
 
 | 
 
 | 
    $
 | 
    4,354,562
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    
    60
 
 
     | 
     | 
     | 
    | 
    (1)  | 
     | 
    
    During 2010 and 2009, we purchased $281.8 million and
    $964.8 million, respectively, par value of these notes in
    the open market. | 
|   | 
    | 
    (2)  | 
     | 
    
    Includes $.7 million and $1.1 million as of
    December 31, 2010 and 2009, respectively, related to the
    unamortized loss on the interest rate swap that was unwound
    during the fourth quarter of 2005. | 
 
    The fair values of our cash equivalents, trade receivables and
    trade payables approximate their carrying values due to the
    short-term nature of these instruments. Our cash, cash
    equivalents, short-term and long-term investments and other
    receivables are included in the table below:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    December 31,
 | 
 
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Weighted- 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Weighted- 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Average 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Average 
    
 | 
 
 | 
| 
 
 | 
 
 | 
    Fair 
    
 | 
 
 | 
 
 | 
    Interest 
    
 | 
 
 | 
    Life 
    
 | 
 
 | 
 
 | 
    Fair 
    
 | 
 
 | 
 
 | 
    Interest 
    
 | 
 
 | 
    Life 
    
 | 
 
 | 
| 
 
 | 
 
 | 
    Value
 | 
 
 | 
 
 | 
    Rates
 | 
 
 | 
    (Years)
 | 
 
 | 
 
 | 
    Value
 | 
 
 | 
 
 | 
    Rates
 | 
 
 | 
    (Years)
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands, except interest rates)
 | 
 
 | 
|  
 | 
| 
 
    Cash and cash equivalents
 
 | 
 
 | 
    $
 | 
    641,702
 | 
 
 | 
 
 | 
    0% - .28%
 | 
 
 | 
 
 | 
    0.00
 | 
 
 | 
 
 | 
    $
 | 
    927,815
 | 
 
 | 
 
 | 
    0% - 1.55%
 | 
 
 | 
 
 | 
    0.00
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Short-term investments:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Trading equity securities
 
 | 
 
 | 
 
 | 
    19,630
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    24,014
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Available-for-sale
    equity securities
 
 | 
 
 | 
 
 | 
    79,698
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    93,651
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Available-for-sale
    debt securities:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Commercial paper and CDs
 
 | 
 
 | 
 
 | 
    1,275
 | 
 
 | 
 
 | 
    .75%
 | 
 
 | 
 
 | 
    .6
 | 
 
 | 
 
 | 
 
 | 
    1,284
 | 
 
 | 
 
 | 
    .25%
 | 
 
 | 
 
 | 
    .6
 | 
 
 | 
| 
 
    Corporate debt securities
 
 | 
 
 | 
 
 | 
    52,022
 | 
 
 | 
 
 | 
    10.01% - 13.99%
 | 
 
 | 
 
 | 
    3.6
 | 
 
 | 
 
 | 
 
 | 
    33,852
 | 
 
 | 
 
 | 
    .38% -14.00%
 | 
 
 | 
 
 | 
    2.6
 | 
 
 | 
| 
 
    Mortgage-backed debt securities
 
 | 
 
 | 
 
 | 
    372
 | 
 
 | 
 
 | 
    2.79%
 | 
 
 | 
 
 | 
    2.7
 | 
 
 | 
 
 | 
 
 | 
    861
 | 
 
 | 
 
 | 
    5.15% - 5.18%
 | 
 
 | 
 
 | 
    3.0
 | 
 
 | 
| 
 
    Mortgage-CMO debt securities
 
 | 
 
 | 
 
 | 
    3,015
 | 
 
 | 
 
 | 
    .42% - 5.9%
 | 
 
 | 
 
 | 
    .3
 | 
 
 | 
 
 | 
 
 | 
    5,411
 | 
 
 | 
 
 | 
    2.58% -6.23%
 | 
 
 | 
 
 | 
    1.9
 | 
 
 | 
| 
 
    Asset-backed debt securities
 
 | 
 
 | 
 
 | 
    3,476
 | 
 
 | 
 
 | 
    .56% - 4.81%
 | 
 
 | 
 
 | 
    1.3
 | 
 
 | 
 
 | 
 
 | 
    3,963
 | 
 
 | 
 
 | 
    2.64% -6.22%
 | 
 
 | 
 
 | 
    2.1
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total
    available-for-sale
    debt securities
 
 | 
 
 | 
 
 | 
    60,160
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    45,371
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total
    available-for-sale
    securities
 
 | 
 
 | 
 
 | 
    139,858
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    139,022
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total short-term investments
 
 | 
 
 | 
 
 | 
    159,488
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    163,036
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Long-term investments and other receivables:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Actively managed funds
 
 | 
 
 | 
 
 | 
    7,427
 | 
 
 | 
 
 | 
    N/A
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    8,341
 | 
 
 | 
 
 | 
    N/A
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Oil and gas financing receivables
 
 | 
 
 | 
 
 | 
    32,873
 | 
 
 | 
 
 | 
    13.10% - 13.52%
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    92,541
 | 
 
 | 
 
 | 
    13.10% -13.52%
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total long-term investments and other receivables
 
 | 
 
 | 
 
 | 
    40,300
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    100,882
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total cash, cash equivalents, short-term and long-term
    investments and other receivables
 
 | 
 
 | 
    $
 | 
    841,490
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    $
 | 
    1,191,733
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
    Our investments in debt securities listed in the above table and
    a portion of our long-term investments are sensitive to changes
    in interest rates. Additionally, our investment portfolio of
    debt and equity securities, which are carried at fair value,
    exposes us to price risk. A hypothetical 10% decrease in the
    market prices for all securities as of December 31, 2010
    would decrease the fair value of our trading securities and
    available-for-sale
    securities by $2.0 million and $14.0 million,
    respectively.
    
    61
 
 
     | 
     | 
    | 
    ITEM 8.  
 | 
    
    FINANCIAL
    STATEMENTS AND SUPPLEMENTARY DATA
 | 
 
    INDEX
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Page No.
 | 
|  
 | 
| 
 | 
 
 | 
 
 | 
    63
 | 
 
 | 
| 
 | 
 
 | 
 
 | 
    65
 | 
 
 | 
| 
 | 
 
 | 
 
 | 
    66
 | 
 
 | 
| 
 | 
 
 | 
 
 | 
    67
 | 
 
 | 
| 
 | 
 
 | 
 
 | 
    68
 | 
 
 | 
| 
 | 
 
 | 
 
 | 
    70
 | 
 
 | 
    
    62
 
 
    Report of
    Independent Registered Public Accounting Firm
 
    To the Board of Directors and Shareholders
    of Nabors Industries Ltd.
 
    In our opinion, the accompanying consolidated balance sheets and
    the related consolidated statements of income (loss), changes in
    equity and cash flows present fairly, in all material respects,
    the financial position of Nabors Industries Ltd. and its
    subsidiaries (the Company) at December 31, 2010 and
    December 31, 2009, and the results of their operations and
    their cash flows for each of the three years in the period ended
    December 31, 2010 in conformity with accounting principles
    generally accepted in the United States of America. In addition,
    in our opinion, the financial statement schedule listed in the
    index appearing under Item 15(a)(2) presents fairly, in all
    material respects, the information set forth therein when read
    in conjunction with the related consolidated financial
    statements. Also in our opinion, the Company maintained, in all
    material respects, effective internal control over financial
    reporting as of December 31, 2010, based on criteria
    established in Internal Control  Integrated
    Framework issued by the Committee of Sponsoring
    Organizations of the Treadway Commission (COSO). The
    Companys management is responsible for these financial
    statements and financial statement schedule, for maintaining
    effective internal control over financial reporting and for its
    assessment of the effectiveness of internal control over
    financial reporting, included in Managements Report on
    Internal Control over Financial Reporting appearing under
    Item 9A. Our responsibility is to express opinions on these
    financial statements, on the financial statement schedule, and
    on the Companys internal control over financial reporting
    based on our integrated audits. We conducted our audits in
    accordance with the standards of the Public Company Accounting
    Oversight Board (United States). Those standards require that we
    plan and perform the audits to obtain reasonable assurance about
    whether the financial statements are free of material
    misstatement and whether effective internal control over
    financial reporting was maintained in all material respects. Our
    audits of the financial statements included examining, on a test
    basis, evidence supporting the amounts and disclosures in the
    financial statements, assessing the accounting principles used
    and significant estimates made by management, and evaluating the
    overall financial statement presentation. Our audit of internal
    control over financial reporting included obtaining an
    understanding of internal control over financial reporting,
    assessing the risk that a material weakness exists, and testing
    and evaluating the design and operating effectiveness of
    internal control based on the assessed risk. Our audits also
    included performing such other procedures as we considered
    necessary in the circumstances. We believe that our audits
    provide a reasonable basis for our opinions.
 
    As discussed in Note 2 to the consolidated financial
    statements, the Company changed the manner in which their oil
    and gas reserves are estimated as well as the manner in which
    prices are determined to calculate the ceiling limit on
    capitalized oil and gas costs as of December 31, 2009.
 
    As described in Managements Report on Internal Control
    over Financial Reporting appearing under Item 9A,
    management has excluded Superior Well Services, Inc.
    (Superior) from its assessment of internal control
    over financial reporting as of December 31, 2010 because
    Superior was acquired by the Company in a purchase business
    combination during 2010. We have also excluded Superior from our
    audit of internal control over financial reporting. Superior is
    a wholly-owned subsidiary whose total assets and total revenues
    represent 10 and 8 percent, respectively, of the related
    consolidated financial statement amounts as of and for the year
    ended December 31, 2010.
 
    A companys internal control over financial reporting is a
    process designed to provide reasonable assurance regarding the
    reliability of financial reporting and the preparation of
    financial statements for external purposes in accordance with
    generally accepted accounting principles. A companys
    internal control over financial reporting includes those
    policies and procedures that (i) pertain to the maintenance
    of records that, in reasonable detail, accurately and fairly
    reflect the transactions and dispositions of the assets of the
    company; (ii) provide reasonable assurance that
    transactions are recorded as necessary to permit preparation of
    financial statements in accordance with generally accepted
    accounting principles, and that receipts and expenditures of
    
    63
 
    the company are being made only in accordance with
    authorizations of management and directors of the company; and
    (iii) provide reasonable assurance regarding prevention or
    timely detection of unauthorized acquisition, use, or
    disposition of the companys assets that could have a
    material effect on the financial statements.
 
    Because of its inherent limitations, internal control over
    financial reporting may not prevent or detect misstatements.
    Also, projections of any evaluation of effectiveness to future
    periods are subject to the risk that controls may become
    inadequate because of changes in conditions, or that the degree
    of compliance with the policies or procedures may deteriorate.
 
    /s/  PricewaterhouseCoopers
    LLP
 
 
    Houston, Texas
    March 1, 2011
    
    64
 
    NABORS
    INDUSTRIES LTD. AND SUBSIDIARIES
    
 
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    December 31,
 | 
 
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands, except per share amounts)
 | 
 
 | 
|  
 | 
| 
 
    ASSETS
 
 | 
| 
 
    Current assets:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Cash and cash equivalents
 
 | 
 
 | 
    $
 | 
    641,702
 | 
 
 | 
 
 | 
    $
 | 
    927,815
 | 
 
 | 
| 
 
    Short-term investments
 
 | 
 
 | 
 
 | 
    159,488
 | 
 
 | 
 
 | 
 
 | 
    163,036
 | 
 
 | 
| 
 
    Assets held for sale
 
 | 
 
 | 
 
 | 
    352,048
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Accounts receivable, net
 
 | 
 
 | 
 
 | 
    1,116,510
 | 
 
 | 
 
 | 
 
 | 
    724,040
 | 
 
 | 
| 
 
    Inventory
 
 | 
 
 | 
 
 | 
    158,836
 | 
 
 | 
 
 | 
 
 | 
    100,819
 | 
 
 | 
| 
 
    Deferred income taxes
 
 | 
 
 | 
 
 | 
    31,510
 | 
 
 | 
 
 | 
 
 | 
    125,163
 | 
 
 | 
| 
 
    Other current assets
 
 | 
 
 | 
 
 | 
    152,836
 | 
 
 | 
 
 | 
 
 | 
    135,791
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total current assets
 
 | 
 
 | 
 
 | 
    2,612,930
 | 
 
 | 
 
 | 
 
 | 
    2,176,664
 | 
 
 | 
| 
 
    Long-term investments and other receivables
 
 | 
 
 | 
 
 | 
    40,300
 | 
 
 | 
 
 | 
 
 | 
    100,882
 | 
 
 | 
| 
 
    Property, plant and equipment, net
 
 | 
 
 | 
 
 | 
    7,815,419
 | 
 
 | 
 
 | 
 
 | 
    7,646,050
 | 
 
 | 
| 
 
    Goodwill
 
 | 
 
 | 
 
 | 
    494,372
 | 
 
 | 
 
 | 
 
 | 
    164,265
 | 
 
 | 
| 
 
    Investment in unconsolidated affiliates
 
 | 
 
 | 
 
 | 
    267,723
 | 
 
 | 
 
 | 
 
 | 
    306,608
 | 
 
 | 
| 
 
    Other long-term assets
 
 | 
 
 | 
 
 | 
    415,825
 | 
 
 | 
 
 | 
 
 | 
    250,221
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total assets
 
 | 
 
 | 
    $
 | 
    11,646,569
 | 
 
 | 
 
 | 
    $
 | 
    10,644,690
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
| 
    LIABILITIES AND EQUITY
 | 
| 
 
    Current liabilities:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Current portion of long-term debt
 
 | 
 
 | 
    $
 | 
    1,379,018
 | 
 
 | 
 
 | 
    $
 | 
    163
 | 
 
 | 
| 
 
    Trade accounts payable
 
 | 
 
 | 
 
 | 
    355,282
 | 
 
 | 
 
 | 
 
 | 
    226,423
 | 
 
 | 
| 
 
    Accrued liabilities
 
 | 
 
 | 
 
 | 
    394,292
 | 
 
 | 
 
 | 
 
 | 
    346,337
 | 
 
 | 
| 
 
    Income taxes payable
 
 | 
 
 | 
 
 | 
    25,788
 | 
 
 | 
 
 | 
 
 | 
    35,699
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total current liabilities
 
 | 
 
 | 
 
 | 
    2,154,380
 | 
 
 | 
 
 | 
 
 | 
    608,622
 | 
 
 | 
| 
 
    Long-term debt
 
 | 
 
 | 
 
 | 
    3,064,126
 | 
 
 | 
 
 | 
 
 | 
    3,940,605
 | 
 
 | 
| 
 
    Other long-term liabilities
 
 | 
 
 | 
 
 | 
    245,765
 | 
 
 | 
 
 | 
 
 | 
    240,057
 | 
 
 | 
| 
 
    Deferred income taxes
 
 | 
 
 | 
 
 | 
    770,247
 | 
 
 | 
 
 | 
 
 | 
    673,427
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total liabilities
 
 | 
 
 | 
 
 | 
    6,234,518
 | 
 
 | 
 
 | 
 
 | 
    5,462,711
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Commitments and contingencies (Note 17)
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Subsidiary preferred stock (Notes 7 and 14)
 
 | 
 
 | 
 
 | 
    69,188
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Equity:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Shareholders equity:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Common shares, par value $.001 per share:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Authorized common shares 800,000; issued 315,034 and 313,915,
    respectively
 
 | 
 
 | 
 
 | 
    315
 | 
 
 | 
 
 | 
 
 | 
    314
 | 
 
 | 
| 
 
    Capital in excess of par value
 
 | 
 
 | 
 
 | 
    2,255,787
 | 
 
 | 
 
 | 
 
 | 
    2,239,323
 | 
 
 | 
| 
 
    Accumulated other comprehensive income
 
 | 
 
 | 
 
 | 
    342,052
 | 
 
 | 
 
 | 
 
 | 
    292,706
 | 
 
 | 
| 
 
    Retained earnings
 
 | 
 
 | 
 
 | 
    3,707,881
 | 
 
 | 
 
 | 
 
 | 
    3,613,186
 | 
 
 | 
| 
 
    Less: treasury shares, at cost, 29,414 common shares
 
 | 
 
 | 
 
 | 
    (977,873
 | 
    )
 | 
 
 | 
 
 | 
    (977,873
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total shareholders equity
 
 | 
 
 | 
 
 | 
    5,328,162
 | 
 
 | 
 
 | 
 
 | 
    5,167,656
 | 
 
 | 
| 
 
    Noncontrolling interest
 
 | 
 
 | 
 
 | 
    14,701
 | 
 
 | 
 
 | 
 
 | 
    14,323
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total equity
 
 | 
 
 | 
 
 | 
    5,342,863
 | 
 
 | 
 
 | 
 
 | 
    5,181,979
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total liabilities and equity
 
 | 
 
 | 
    $
 | 
    11,646,569
 | 
 
 | 
 
 | 
    $
 | 
    10,644,690
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
    The accompanying notes are an integral part of these
    consolidated financial statements.
    
    65
 
    NABORS
    INDUSTRIES LTD. AND SUBSIDIARIES
    
 
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
 
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
 
 | 
    2008
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands, except per share amounts)
 | 
 
 | 
|  
 | 
| 
 
    Revenues and other income:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Operating revenues
 
 | 
 
 | 
    $
 | 
    4,174,635
 | 
 
 | 
 
 | 
    $
 | 
    3,683,419
 | 
 
 | 
 
 | 
    $
 | 
    5,507,542
 | 
 
 | 
| 
 
    Earnings (losses) from unconsolidated affiliates
 
 | 
 
 | 
 
 | 
    33,257
 | 
 
 | 
 
 | 
 
 | 
    (155,433
 | 
    )
 | 
 
 | 
 
 | 
    (192,548
 | 
    )
 | 
| 
 
    Investment income (loss)
 
 | 
 
 | 
 
 | 
    7,648
 | 
 
 | 
 
 | 
 
 | 
    25,599
 | 
 
 | 
 
 | 
 
 | 
    21,412
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total revenues and other income
 
 | 
 
 | 
 
 | 
    4,215,540
 | 
 
 | 
 
 | 
 
 | 
    3,553,585
 | 
 
 | 
 
 | 
 
 | 
    5,336,406
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Costs and other deductions:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Direct costs
 
 | 
 
 | 
 
 | 
    2,423,602
 | 
 
 | 
 
 | 
 
 | 
    2,001,404
 | 
 
 | 
 
 | 
 
 | 
    3,100,613
 | 
 
 | 
| 
 
    General and administrative expenses
 
 | 
 
 | 
 
 | 
    346,661
 | 
 
 | 
 
 | 
 
 | 
    428,161
 | 
 
 | 
 
 | 
 
 | 
    479,194
 | 
 
 | 
| 
 
    Depreciation and amortization
 
 | 
 
 | 
 
 | 
    764,253
 | 
 
 | 
 
 | 
 
 | 
    667,100
 | 
 
 | 
 
 | 
 
 | 
    614,367
 | 
 
 | 
| 
 
    Depletion
 
 | 
 
 | 
 
 | 
    17,943
 | 
 
 | 
 
 | 
 
 | 
    9,417
 | 
 
 | 
 
 | 
 
 | 
    22,308
 | 
 
 | 
| 
 
    Interest expense
 
 | 
 
 | 
 
 | 
    273,044
 | 
 
 | 
 
 | 
 
 | 
    266,039
 | 
 
 | 
 
 | 
 
 | 
    196,718
 | 
 
 | 
| 
 
    Losses (gains) on sales and retirements of long-lived assets and
    other expense (income), net
 
 | 
 
 | 
 
 | 
    47,060
 | 
 
 | 
 
 | 
 
 | 
    12,559
 | 
 
 | 
 
 | 
 
 | 
    15,829
 | 
 
 | 
| 
 
    Impairments and other charges
 
 | 
 
 | 
 
 | 
    260,931
 | 
 
 | 
 
 | 
 
 | 
    330,976
 | 
 
 | 
 
 | 
 
 | 
    176,123
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total costs and other deductions
 
 | 
 
 | 
 
 | 
    4,133,494
 | 
 
 | 
 
 | 
 
 | 
    3,715,656
 | 
 
 | 
 
 | 
 
 | 
    4,605,152
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Income (loss) from continuing operations before income taxes
 
 | 
 
 | 
 
 | 
    82,046
 | 
 
 | 
 
 | 
 
 | 
    (162,071
 | 
    )
 | 
 
 | 
 
 | 
    731,254
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Income tax expense (benefit):
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Current
 
 | 
 
 | 
 
 | 
    (83,816
 | 
    )
 | 
 
 | 
 
 | 
    69,532
 | 
 
 | 
 
 | 
 
 | 
    188,832
 | 
 
 | 
| 
 
    Deferred
 
 | 
 
 | 
 
 | 
    59,002
 | 
 
 | 
 
 | 
 
 | 
    (203,335
 | 
    )
 | 
 
 | 
 
 | 
    20,828
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total income tax expense (benefit)
 
 | 
 
 | 
 
 | 
    (24,814
 | 
    )
 | 
 
 | 
 
 | 
    (133,803
 | 
    )
 | 
 
 | 
 
 | 
    209,660
 | 
 
 | 
| 
 
    Subsidiary preferred stock dividend
 
 | 
 
 | 
 
 | 
    750
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Income (loss) from continuing operations, net of tax
 
 | 
 
 | 
 
 | 
    106,110
 | 
 
 | 
 
 | 
 
 | 
    (28,268
 | 
    )
 | 
 
 | 
 
 | 
    521,594
 | 
 
 | 
| 
 
    Income (loss) from discontinued operations, net of tax
 
 | 
 
 | 
 
 | 
    (11,330
 | 
    )
 | 
 
 | 
 
 | 
    (57,620
 | 
    )
 | 
 
 | 
 
 | 
    (41,930
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net income (loss)
 
 | 
 
 | 
 
 | 
    94,780
 | 
 
 | 
 
 | 
 
 | 
    (85,888
 | 
    )
 | 
 
 | 
 
 | 
    479,664
 | 
 
 | 
| 
 
    Less: Net (income) loss attributable to noncontrolling interest
 
 | 
 
 | 
 
 | 
    (85
 | 
    )
 | 
 
 | 
 
 | 
    342
 | 
 
 | 
 
 | 
 
 | 
    (3,927
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net income (loss) attributable to Nabors
 
 | 
 
 | 
    $
 | 
    94,695
 | 
 
 | 
 
 | 
    $
 | 
    (85,546
 | 
    )
 | 
 
 | 
    $
 | 
    475,737
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Earnings (losses) per share:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Basic from continuing operations
 
 | 
 
 | 
    $
 | 
    .37
 | 
 
 | 
 
 | 
    $
 | 
    (.10
 | 
    )
 | 
 
 | 
    $
 | 
    1.84
 | 
 
 | 
| 
 
    Basic from discontinued operations
 
 | 
 
 | 
 
 | 
    (.04
 | 
    )
 | 
 
 | 
 
 | 
    (.20
 | 
    )
 | 
 
 | 
 
 | 
    (.15
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total Basic
 
 | 
 
 | 
    $
 | 
    .33
 | 
 
 | 
 
 | 
    $
 | 
    (.30
 | 
    )
 | 
 
 | 
    $
 | 
    1.69
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Diluted from continuing operations
 
 | 
 
 | 
    $
 | 
    .37
 | 
 
 | 
 
 | 
    $
 | 
    (.10
 | 
    )
 | 
 
 | 
    $
 | 
    1.80
 | 
 
 | 
| 
 
    Diluted from discontinued operations
 
 | 
 
 | 
 
 | 
    (.04
 | 
    )
 | 
 
 | 
 
 | 
    (.20
 | 
    )
 | 
 
 | 
 
 | 
    (.15
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total Diluted
 
 | 
 
 | 
    $
 | 
    .33
 | 
 
 | 
 
 | 
    $
 | 
    (.30
 | 
    )
 | 
 
 | 
    $
 | 
    1.65
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Weighted-average number of common shares outstanding:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Basic
 
 | 
 
 | 
 
 | 
    285,145
 | 
 
 | 
 
 | 
 
 | 
    283,326
 | 
 
 | 
 
 | 
 
 | 
    281,622
 | 
 
 | 
| 
 
    Diluted
 
 | 
 
 | 
 
 | 
    289,996
 | 
 
 | 
 
 | 
 
 | 
    283,326
 | 
 
 | 
 
 | 
 
 | 
    288,236
 | 
 
 | 
 
    The details of credit-related impairments to investments for
    the year ended December 31, 2009 is presented below:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Other-than-temporary
    impairment on debt security
 
 | 
 
 | 
    $
 | 
    40,300
 | 
 
 | 
| 
 
    Less:
    other-than-temporary
    impairment recognized in accumulated other comprehensive income
    (loss)
 
 | 
 
 | 
 
 | 
    (4,651
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Credit-related impairment on investment(1)
 
 | 
 
 | 
    $
 | 
    35,649
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 
     | 
     | 
     | 
    | 
    (1)  | 
     | 
    
    Included in Impairments and other charges (Note 3) | 
 
    The accompanying notes are an integral part of these
    consolidated financial statements.
    
    66
 
    NABORS
    INDUSTRIES LTD. AND SUBSIDIARIES
    
 
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
 
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
 
 | 
    2008
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Cash flows from operating activities:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net income (loss) attributable to Nabors
 
 | 
 
 | 
    $
 | 
    94,695
 | 
 
 | 
 
 | 
    $
 | 
    (85,546
 | 
    )
 | 
 
 | 
    $
 | 
    475,737
 | 
 
 | 
| 
 
    Adjustments to net income (loss):
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Depreciation and amortization
 
 | 
 
 | 
 
 | 
    766,519
 | 
 
 | 
 
 | 
 
 | 
    668,415
 | 
 
 | 
 
 | 
 
 | 
    614,367
 | 
 
 | 
| 
 
    Depletion
 
 | 
 
 | 
 
 | 
    27,002
 | 
 
 | 
 
 | 
 
 | 
    11,078
 | 
 
 | 
 
 | 
 
 | 
    25,442
 | 
 
 | 
| 
 
    Deferred income tax expense (benefit)
 
 | 
 
 | 
 
 | 
    55,964
 | 
 
 | 
 
 | 
 
 | 
    (218,760
 | 
    )
 | 
 
 | 
 
 | 
    17,315
 | 
 
 | 
| 
 
    Deferred financing costs amortization
 
 | 
 
 | 
 
 | 
    5,431
 | 
 
 | 
 
 | 
 
 | 
    6,133
 | 
 
 | 
 
 | 
 
 | 
    7,661
 | 
 
 | 
| 
 
    Pension liability amortization and adjustments
 
 | 
 
 | 
 
 | 
    664
 | 
 
 | 
 
 | 
 
 | 
    844
 | 
 
 | 
 
 | 
 
 | 
    160
 | 
 
 | 
| 
 
    Discount amortization on long-term debt
 
 | 
 
 | 
 
 | 
    70,719
 | 
 
 | 
 
 | 
 
 | 
    86,802
 | 
 
 | 
 
 | 
 
 | 
    123,739
 | 
 
 | 
| 
 
    Amortization of loss on hedges
 
 | 
 
 | 
 
 | 
    786
 | 
 
 | 
 
 | 
 
 | 
    580
 | 
 
 | 
 
 | 
 
 | 
    548
 | 
 
 | 
| 
 
    Impairments and other charges
 
 | 
 
 | 
 
 | 
    260,931
 | 
 
 | 
 
 | 
 
 | 
    339,129
 | 
 
 | 
 
 | 
 
 | 
    176,123
 | 
 
 | 
| 
 
    Losses (gains) on long-lived assets, net
 
 | 
 
 | 
 
 | 
    (1,050
 | 
    )
 | 
 
 | 
 
 | 
    12,339
 | 
 
 | 
 
 | 
 
 | 
    9,644
 | 
 
 | 
| 
 
    Losses (gains) on investments, net
 
 | 
 
 | 
 
 | 
    191
 | 
 
 | 
 
 | 
 
 | 
    (9,954
 | 
    )
 | 
 
 | 
 
 | 
    18,736
 | 
 
 | 
| 
 
    Losses (gains) on debt retirement, net
 
 | 
 
 | 
 
 | 
    7,042
 | 
 
 | 
 
 | 
 
 | 
    (11,197
 | 
    )
 | 
 
 | 
 
 | 
    (12,248
 | 
    )
 | 
| 
 
    Losses (gains) on derivative instruments
 
 | 
 
 | 
 
 | 
    2,471
 | 
 
 | 
 
 | 
 
 | 
    338
 | 
 
 | 
 
 | 
 
 | 
    4,783
 | 
 
 | 
| 
 
    Share-based compensation
 
 | 
 
 | 
 
 | 
    13,746
 | 
 
 | 
 
 | 
 
 | 
    106,725
 | 
 
 | 
 
 | 
 
 | 
    45,401
 | 
 
 | 
| 
 
    Foreign currency transaction losses (gains), net
 
 | 
 
 | 
 
 | 
    17,880
 | 
 
 | 
 
 | 
 
 | 
    8,372
 | 
 
 | 
 
 | 
 
 | 
    (2,718
 | 
    )
 | 
| 
 
    Equity in (earnings) losses of unconsolidated affiliates, net of
    dividends
 
 | 
 
 | 
 
 | 
    (13,630
 | 
    )
 | 
 
 | 
 
 | 
    229,813
 | 
 
 | 
 
 | 
 
 | 
    236,763
 | 
 
 | 
| 
 
    Changes in operating assets and liabilities, net of effects from
    acquisitions:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Accounts receivable
 
 | 
 
 | 
 
 | 
    (249,725
 | 
    )
 | 
 
 | 
 
 | 
    450,530
 | 
 
 | 
 
 | 
 
 | 
    (157,697
 | 
    )
 | 
| 
 
    Inventory
 
 | 
 
 | 
 
 | 
    (15,201
 | 
    )
 | 
 
 | 
 
 | 
    52,995
 | 
 
 | 
 
 | 
 
 | 
    (26,774
 | 
    )
 | 
| 
 
    Other current assets
 
 | 
 
 | 
 
 | 
    6,589
 | 
 
 | 
 
 | 
 
 | 
    205,108
 | 
 
 | 
 
 | 
 
 | 
    (81,764
 | 
    )
 | 
| 
 
    Other long-term assets
 
 | 
 
 | 
 
 | 
    7,509
 | 
 
 | 
 
 | 
 
 | 
    (22,233
 | 
    )
 | 
 
 | 
 
 | 
    (85,231
 | 
    )
 | 
| 
 
    Trade accounts payable and accrued liabilities
 
 | 
 
 | 
 
 | 
    70,463
 | 
 
 | 
 
 | 
 
 | 
    (146,470
 | 
    )
 | 
 
 | 
 
 | 
    38,129
 | 
 
 | 
| 
 
    Income taxes payable
 
 | 
 
 | 
 
 | 
    (19,208
 | 
    )
 | 
 
 | 
 
 | 
    (62,535
 | 
    )
 | 
 
 | 
 
 | 
    24,043
 | 
 
 | 
| 
 
    Other long-term liabilities
 
 | 
 
 | 
 
 | 
    (2,804
 | 
    )
 | 
 
 | 
 
 | 
    (5,534
 | 
    )
 | 
 
 | 
 
 | 
    10,665
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net cash provided by operating activities
 
 | 
 
 | 
 
 | 
    1,106,984
 | 
 
 | 
 
 | 
 
 | 
    1,616,972
 | 
 
 | 
 
 | 
 
 | 
    1,462,824
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Cash flows from investing activities:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Purchases of investments
 
 | 
 
 | 
 
 | 
    (34,147
 | 
    )
 | 
 
 | 
 
 | 
    (32,674
 | 
    )
 | 
 
 | 
 
 | 
    (269,983
 | 
    )
 | 
| 
 
    Sales and maturities of investments
 
 | 
 
 | 
 
 | 
    34,613
 | 
 
 | 
 
 | 
 
 | 
    57,033
 | 
 
 | 
 
 | 
 
 | 
    521,613
 | 
 
 | 
| 
 
    Cash paid for acquisition of businesses, net of cash acquired
 
 | 
 
 | 
 
 | 
    (733,630
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (287
 | 
    )
 | 
| 
 
    Investment in unconsolidated affiliates
 
 | 
 
 | 
 
 | 
    (40,936
 | 
    )
 | 
 
 | 
 
 | 
    (125,076
 | 
    )
 | 
 
 | 
 
 | 
    (271,309
 | 
    )
 | 
| 
 
    Capital expenditures
 
 | 
 
 | 
 
 | 
    (930,277
 | 
    )
 | 
 
 | 
 
 | 
    (1,093,435
 | 
    )
 | 
 
 | 
 
 | 
    (1,506,979
 | 
    )
 | 
| 
 
    Proceeds from sales of assets and insurance claims
 
 | 
 
 | 
 
 | 
    31,072
 | 
 
 | 
 
 | 
 
 | 
    31,375
 | 
 
 | 
 
 | 
 
 | 
    69,842
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net cash used for investing activities
 
 | 
 
 | 
 
 | 
    (1,673,305
 | 
    )
 | 
 
 | 
 
 | 
    (1,162,777
 | 
    )
 | 
 
 | 
 
 | 
    (1,457,103
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Cash flows from financing activities:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Increase (decrease) in cash overdrafts
 
 | 
 
 | 
 
 | 
    (6,298
 | 
    )
 | 
 
 | 
 
 | 
    (18,157
 | 
    )
 | 
 
 | 
 
 | 
    23,858
 | 
 
 | 
| 
 
    Proceeds from long-term debt
 
 | 
 
 | 
 
 | 
    696,948
 | 
 
 | 
 
 | 
 
 | 
    1,124,978
 | 
 
 | 
 
 | 
 
 | 
    962,901
 | 
 
 | 
| 
 
    Debt issuance costs
 
 | 
 
 | 
 
 | 
    (8,934
 | 
    )
 | 
 
 | 
 
 | 
    (8,832
 | 
    )
 | 
 
 | 
 
 | 
    (7,324
 | 
    )
 | 
| 
 
    Payments for (proceeds from) hedge transactions
 
 | 
 
 | 
 
 | 
    (5,667
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Proceeds from Revolving Credit Facility
 
 | 
 
 | 
 
 | 
    600,000
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Proceeds from issuance of common shares
 
 | 
 
 | 
 
 | 
    8,201
 | 
 
 | 
 
 | 
 
 | 
    11,249
 | 
 
 | 
 
 | 
 
 | 
    56,630
 | 
 
 | 
| 
 
    Reduction in long-term debt
 
 | 
 
 | 
 
 | 
    (398,514
 | 
    )
 | 
 
 | 
 
 | 
    (1,081,801
 | 
    )
 | 
 
 | 
 
 | 
    (836,511
 | 
    )
 | 
| 
 
    Reduction in Revolving Credit Facility
 
 | 
 
 | 
 
 | 
    (600,000
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Repurchase of equity component of convertible debt
 
 | 
 
 | 
 
 | 
    (4,712
 | 
    )
 | 
 
 | 
 
 | 
    (6,586
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Settlement of call options and warrants, net
 
 | 
 
 | 
 
 | 
    1,134
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Repurchase of common shares
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (281,101
 | 
    )
 | 
| 
 
    Purchase of restricted stock
 
 | 
 
 | 
 
 | 
    (1,935
 | 
    )
 | 
 
 | 
 
 | 
    (1,515
 | 
    )
 | 
 
 | 
 
 | 
    (13,061
 | 
    )
 | 
| 
 
    Tax benefit related to share-based awards
 
 | 
 
 | 
 
 | 
    31
 | 
 
 | 
 
 | 
 
 | 
    37
 | 
 
 | 
 
 | 
 
 | 
    5,369
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net cash provided by (used for) financing activities
 
 | 
 
 | 
 
 | 
    280,254
 | 
 
 | 
 
 | 
 
 | 
    19,373
 | 
 
 | 
 
 | 
 
 | 
    (89,239
 | 
    )
 | 
| 
 
    Effect of exchange rate changes on cash and cash equivalents
 
 | 
 
 | 
 
 | 
    (46
 | 
    )
 | 
 
 | 
 
 | 
    12,160
 | 
 
 | 
 
 | 
 
 | 
    (5,701
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net increase in cash and cash equivalents
 
 | 
 
 | 
 
 | 
    (286,113
 | 
    )
 | 
 
 | 
 
 | 
    485,728
 | 
 
 | 
 
 | 
 
 | 
    (89,219
 | 
    )
 | 
| 
 
    Cash and cash equivalents, beginning of period
 
 | 
 
 | 
 
 | 
    927,815
 | 
 
 | 
 
 | 
 
 | 
    442,087
 | 
 
 | 
 
 | 
 
 | 
    531,306
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Cash and cash equivalents, end of period
 
 | 
 
 | 
    $
 | 
    641,702
 | 
 
 | 
 
 | 
    $
 | 
    927,815
 | 
 
 | 
 
 | 
    $
 | 
    442,087
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
    The accompanying notes are an integral part of these
    consolidated financial statements.
    
    67
 
    NABORS
    INDUSTRIES LTD. AND SUBSIDIARIES
    
 
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Accumulated 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Capital in 
    
 | 
 
 | 
 
 | 
    Other 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Non- 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Common Shares
 | 
 
 | 
 
 | 
    Excess of 
    
 | 
 
 | 
 
 | 
    Comprehensive 
    
 | 
 
 | 
 
 | 
    Retained 
    
 | 
 
 | 
 
 | 
    Treasury 
    
 | 
 
 | 
 
 | 
    Controlling 
    
 | 
 
 | 
 
 | 
    Total 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Shares
 | 
 
 | 
 
 | 
    Par Value
 | 
 
 | 
 
 | 
    Par Value
 | 
 
 | 
 
 | 
    Income
 | 
 
 | 
 
 | 
    Earnings
 | 
 
 | 
 
 | 
    Shares
 | 
 
 | 
 
 | 
    Interest
 | 
 
 | 
 
 | 
    Equity
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Balances, December 31, 2007
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    305,458
 | 
 
 | 
 
 | 
    $
 | 
    305
 | 
 
 | 
 
 | 
    $
 | 
    2,133,579
 | 
 
 | 
 
 | 
    $
 | 
    322,635
 | 
 
 | 
 
 | 
    $
 | 
    3,222,995
 | 
 
 | 
 
 | 
    $
 | 
    (877,935
 | 
    )
 | 
 
 | 
    $
 | 
    14,468
 | 
 
 | 
 
 | 
    $
 | 
    4,816,047
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Comprehensive income (loss):
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net income (loss) attributable to Nabors
 
 | 
 
 | 
    $
 | 
    475,737
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    475,737
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    475,737
 | 
 
 | 
| 
 
    Translation adjustment attributable to Nabors
 
 | 
 
 | 
 
 | 
    (228,865
 | 
    )
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (228,865
 | 
    )
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (228,865
 | 
    )
 | 
| 
 
    Unrealized gains/(losses) on marketable securities, net of
    income tax benefit of $4,374
 
 | 
 
 | 
 
 | 
    (37,190
 | 
    )
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (37,190
 | 
    )
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (37,190
 | 
    )
 | 
| 
 
    Less: Reclassification adjustment for (gains)/losses included in
    net income (loss), net of income taxes of $129
 
 | 
 
 | 
 
 | 
    (51
 | 
    )
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (51
 | 
    )
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (51
 | 
    )
 | 
| 
 
    Pension liability amortization, net of income taxes of $56
 
 | 
 
 | 
 
 | 
    104
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    104
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    104
 | 
 
 | 
| 
 
    Pension liability adjustment, net of income tax benefit of $1,915
 
 | 
 
 | 
 
 | 
    (3,009
 | 
    )
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (3,009
 | 
    )
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (3,009
 | 
    )
 | 
| 
 
    Unrealized gains/(losses) and amortization of (gains)/losses on
    cash flow hedges, net of income taxes of $163
 
 | 
 
 | 
 
 | 
    (104
 | 
    )
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (104
 | 
    )
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (104
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Comprehensive income (loss) attributable to Nabors
 
 | 
 
 | 
    $
 | 
    206,622
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net income (loss) attributable to noncontrolling interest
 
 | 
 
 | 
 
 | 
    3,927
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    3,927
 | 
 
 | 
 
 | 
 
 | 
    3,927
 | 
 
 | 
| 
 
    Translation adjustment attributable to noncontrolling interest
 
 | 
 
 | 
 
 | 
    (2,537
 | 
    )
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (2,537
 | 
    )
 | 
 
 | 
 
 | 
    (2,537
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Comprehensive income (loss) attributable to noncontrolling
    interest
 
 | 
 
 | 
 
 | 
    1,390
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total comprehensive income (loss)
 
 | 
 
 | 
    $
 | 
    208,012
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Issuance of common shares for stock options exercised, net of
    surrender of unexercised stock options
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    2,480
 | 
 
 | 
 
 | 
 
 | 
    2
 | 
 
 | 
 
 | 
 
 | 
    56,628
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    56,630
 | 
 
 | 
| 
 
    Distributions from noncontrolling interest
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (1,540
 | 
    )
 | 
 
 | 
 
 | 
    (1,540
 | 
    )
 | 
| 
 
    Nabors Exchangeco shares exchanged
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    16
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Issuance of 5,246 treasury shares related to conversion of notes
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (181,163
 | 
    )
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    181,163
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Repurchase of 8,538 treasury shares
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (281,101
 | 
    )
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (281,101
 | 
    )
 | 
| 
 
    Repurchase of equity component of convertible debt
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (35
 | 
    )
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (35
 | 
    )
 | 
| 
 
    Tax benefit related to the redemption of convertible debt
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    81,789
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    81,789
 | 
 
 | 
| 
 
    Tax benefit related to share-based awards
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    6,282
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    6,282
 | 
 
 | 
| 
 
    Restricted stock awards, net
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    4,389
 | 
 
 | 
 
 | 
 
 | 
    5
 | 
 
 | 
 
 | 
 
 | 
    (13,066
 | 
    )
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (13,061
 | 
    )
 | 
| 
 
    Share-based compensation
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    45,401
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    45,401
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Balances, December 31, 2008
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    312,343
 | 
 
 | 
 
 | 
    $
 | 
    312
 | 
 
 | 
 
 | 
    $
 | 
    2,129,415
 | 
 
 | 
 
 | 
    $
 | 
    53,520
 | 
 
 | 
 
 | 
    $
 | 
    3,698,732
 | 
 
 | 
 
 | 
    $
 | 
    (977,873
 | 
    )
 | 
 
 | 
    $
 | 
    14,318
 | 
 
 | 
 
 | 
    $
 | 
    4,918,424
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Balances, December 31, 2008
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    312,343
 | 
 
 | 
 
 | 
    $
 | 
    312
 | 
 
 | 
 
 | 
    $
 | 
    2,129,415
 | 
 
 | 
 
 | 
    $
 | 
    53,520
 | 
 
 | 
 
 | 
    $
 | 
    3,698,732
 | 
 
 | 
 
 | 
    $
 | 
    (977,873
 | 
    )
 | 
 
 | 
    $
 | 
    14,318
 | 
 
 | 
 
 | 
    $
 | 
    4,918,424
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Comprehensive income (loss):
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net income (loss) attributable to Nabors
 
 | 
 
 | 
    $
 | 
    (85,546
 | 
    )
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (85,546
 | 
    )
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (85,546
 | 
    )
 | 
| 
 
    Translation adjustment attributable to Nabors
 
 | 
 
 | 
 
 | 
    150,290
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    150,290
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    150,290
 | 
 
 | 
| 
 
    Unrealized gains/(losses) on marketable securities, net of
    income benefit of $839
 
 | 
 
 | 
 
 | 
    36,727
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    36,727
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    36,727
 | 
 
 | 
| 
 
    Unrealized gains/(losses) on adjusted basis for marketable debt
    security, net of income taxes of $1,199
 
 | 
 
 | 
 
 | 
    1,956
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    1,956
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    1,956
 | 
 
 | 
| 
 
    Less: Reclassification adjustment for (gains)/losses included in
    net income (loss), net of income tax benefit of $4,921
 
 | 
 
 | 
 
 | 
    49,386
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    49,386
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    49,386
 | 
 
 | 
| 
 
    Pension liability amortization, net of income taxes of $325
 
 | 
 
 | 
 
 | 
    519
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    519
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    519
 | 
 
 | 
| 
 
    Pension liability adjustment, net of income taxes of $89
 
 | 
 
 | 
 
 | 
    130
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    130
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    130
 | 
 
 | 
| 
 
    Unrealized gains/(losses) and amortization of (gains)/losses on
    cash flow hedges, net of income tax benefit of $18
 
 | 
 
 | 
 
 | 
    178
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    178
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    178
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Comprehensive income (loss) attributable to Nabors
 
 | 
 
 | 
    $
 | 
    153,640
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net income (loss) attributable to noncontrolling interest
 
 | 
 
 | 
 
 | 
    (342
 | 
    )
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (342
 | 
    )
 | 
 
 | 
 
 | 
    (342
 | 
    )
 | 
| 
 
    Translation adjustment attributable to noncontrolling interest
 
 | 
 
 | 
 
 | 
    2,024
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    2,024
 | 
 
 | 
 
 | 
 
 | 
    2,024
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Comprehensive income (loss) attributable to noncontrolling
    interest
 
 | 
 
 | 
 
 | 
    1,682
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total comprehensive income (loss)
 
 | 
 
 | 
    $
 | 
    155,322
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Issuance of common shares for stock options exercised, net of
    surrender of unexercised stock options
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    1,476
 | 
 
 | 
 
 | 
 
 | 
    2
 | 
 
 | 
 
 | 
 
 | 
    11,247
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    11,249
 | 
 
 | 
| 
 
    Distributions from noncontrolling interest
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (1,677
 | 
    )
 | 
 
 | 
 
 | 
    (1,677
 | 
    )
 | 
| 
 
    Nabors Exchangeco shares exchanged
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    105
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Repurchase of equity component of convertible debt
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (6,586
 | 
    )
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (6,586
 | 
    )
 | 
| 
 
    Tax benefit related to share-based awards
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    37
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    37
 | 
 
 | 
| 
 
    Restricted stock awards, net
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (9
 | 
    )
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (1,515
 | 
    )
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (1,515
 | 
    )
 | 
| 
 
    Share-based compensation
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    106,725
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    106,725
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Balances, December 31, 2009
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    313,915
 | 
 
 | 
 
 | 
    $
 | 
    314
 | 
 
 | 
 
 | 
    $
 | 
    2,239,323
 | 
 
 | 
 
 | 
    $
 | 
    292,706
 | 
 
 | 
 
 | 
    $
 | 
    3,613,186
 | 
 
 | 
 
 | 
    $
 | 
    (977,873
 | 
    )
 | 
 
 | 
    $
 | 
    14,323
 | 
 
 | 
 
 | 
    $
 | 
    5,181,979
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
    The accompanying notes are an integral part of these
    consolidated financial statements.
    
    68
 
    NABORS
    INDUSTRIES LTD. AND SUBSIDIARIES
    
 
    CONSOLIDATED
    STATEMENTS OF CHANGES IN EQUITY
      (Continued)
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Accumulated 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Capital in 
    
 | 
 
 | 
 
 | 
    Other 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Non- 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Common Shares
 | 
 
 | 
 
 | 
    Excess of 
    
 | 
 
 | 
 
 | 
    Comprehensive 
    
 | 
 
 | 
 
 | 
    Retained 
    
 | 
 
 | 
 
 | 
    Treasury 
    
 | 
 
 | 
 
 | 
    Controlling 
    
 | 
 
 | 
 
 | 
    Total 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Shares
 | 
 
 | 
 
 | 
    Par Value
 | 
 
 | 
 
 | 
    Par Value
 | 
 
 | 
 
 | 
    Income
 | 
 
 | 
 
 | 
    Earnings
 | 
 
 | 
 
 | 
    Shares
 | 
 
 | 
 
 | 
    Interest
 | 
 
 | 
 
 | 
    Equity
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Balances, December 31, 2009
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    313,915
 | 
 
 | 
 
 | 
    $
 | 
    314
 | 
 
 | 
 
 | 
    $
 | 
    2,239,323
 | 
 
 | 
 
 | 
    $
 | 
    292,706
 | 
 
 | 
 
 | 
    $
 | 
    3,613,186
 | 
 
 | 
 
 | 
    $
 | 
    (977,873
 | 
    )
 | 
 
 | 
    $
 | 
    14,323
 | 
 
 | 
 
 | 
    $
 | 
    5,181,979
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Comprehensive income (loss):
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net income (loss) attributable to Nabors
 
 | 
 
 | 
    $
 | 
    94,695
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    94,695
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    94,695
 | 
 
 | 
| 
 
    Translation adjustment attributable to Nabors
 
 | 
 
 | 
 
 | 
    60,897
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    60,897
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    60,897
 | 
 
 | 
| 
 
    Unrealized gains/(losses) on marketable securities, net of
    income taxes of $7,435
 
 | 
 
 | 
 
 | 
    (7,157
 | 
    )
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (7,157
 | 
    )
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (7,157
 | 
    )
 | 
| 
 
    Less: Reclassification adjustment for (gains)/losses included in
    net income (loss), net of income taxes of $693
 
 | 
 
 | 
 
 | 
    (1,001
 | 
    )
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (1,001
 | 
    )
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (1,001
 | 
    )
 | 
| 
 
    Pension liability amortization, net of income taxes of $259
 
 | 
 
 | 
 
 | 
    405
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    405
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    405
 | 
 
 | 
| 
 
    Pension liability adjustment, net of income tax benefit of $405
 
 | 
 
 | 
 
 | 
    (635
 | 
    )
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (635
 | 
    )
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (635
 | 
    )
 | 
| 
 
    Unrealized gains/(losses) and amortization of (gains)/losses on
    cash flow hedges, net of income tax benefit of $2,119
 
 | 
 
 | 
 
 | 
    (3,163
 | 
    )
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (3,163
 | 
    )
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (3,163
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Comprehensive income (loss) attributable to Nabors
 
 | 
 
 | 
    $
 | 
    144,041
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net income (loss) attributable to noncontrolling interest
 
 | 
 
 | 
 
 | 
    85
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    85
 | 
 
 | 
 
 | 
 
 | 
    85
 | 
 
 | 
| 
 
    Translation adjustment attributable to noncontrolling interest
 
 | 
 
 | 
 
 | 
    723
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    723
 | 
 
 | 
 
 | 
 
 | 
    723
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Comprehensive income (loss) attributable to noncontrolling
    interest
 
 | 
 
 | 
 
 | 
    808
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total comprehensive income (loss)
 
 | 
 
 | 
    $
 | 
    144,849
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Issuance of common shares for stock options exercised, net of
    surrender of unexercised stock options
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    714
 | 
 
 | 
 
 | 
 
 | 
    1
 | 
 
 | 
 
 | 
 
 | 
    8,200
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    8,201
 | 
 
 | 
| 
 
    Distributions from noncontrolling interest
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (867
 | 
    )
 | 
 
 | 
 
 | 
    (867
 | 
    )
 | 
| 
 
    Contributions to noncontrolling interest
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    437
 | 
 
 | 
 
 | 
 
 | 
    437
 | 
 
 | 
| 
 
    Repurchase of equity component of convertible debt
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (4,712
 | 
    )
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (4,712
 | 
    )
 | 
| 
 
    Settlement of call options and warrants, net
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    1,134
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    1,134
 | 
 
 | 
| 
 
    Tax benefit related to share-based awards
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    31
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    31
 | 
 
 | 
| 
 
    Restricted stock awards, net
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    405
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (1,935
 | 
    )
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (1,935
 | 
    )
 | 
| 
 
    Share-based compensation
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    13,746
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    13,746
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Balances, December 31, 2010
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    315,034
 | 
 
 | 
 
 | 
    $
 | 
    315
 | 
 
 | 
 
 | 
    $
 | 
    2,255,787
 | 
 
 | 
 
 | 
    $
 | 
    342,052
 | 
 
 | 
 
 | 
    $
 | 
    3,707,881
 | 
 
 | 
 
 | 
    $
 | 
    (977,873
 | 
    )
 | 
 
 | 
    $
 | 
    14,701
 | 
 
 | 
 
 | 
    $
 | 
    5,342,863
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
    The accompanying notes are an integral part of these
    consolidated financial statements.
    
    69
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
 
     | 
     | 
    | 
    Note 1  
 | 
    
    Nature of
    Operations
 | 
 
    Nabors is the largest land drilling contractor in the world and
    one of the largest land well-servicing and workover contractors
    in the United States and Canada:
 
     | 
     | 
     | 
    |   | 
         
 | 
    
    We actively market approximately 550 land drilling rigs for
    oil and gas land drilling operations in the U.S. Lower
    48 states, Alaska, Canada, South America, Mexico, the
    Caribbean, the Middle East, the Far East, Russia and Africa.
 | 
|   | 
    |   | 
         
 | 
    
    We actively market approximately 555 rigs for land
    well-servicing and workover work in the United States and
    approximately 172 rigs for land workover and well-servicing work
    in Canada.
 | 
 
    We are also a leading provider of offshore platform workover and
    drilling rigs, and actively market 37 platform, 13
    jack-up and
    three barge rigs in the United States, including the Gulf of
    Mexico, and multiple international markets.
 
    In addition to the foregoing services:
 
     | 
     | 
     | 
    |   | 
         
 | 
    
    We offer a wide range of ancillary well-site services, including
    hydraulic fracturing, engineering, transportation and disposal,
    construction, maintenance, well logging, directional drilling,
    rig instrumentation, data collection and other support services
    in select United States and international markets.
 | 
|   | 
    |   | 
         
 | 
    
    We manufacture and lease or sell top drives for a broad range of
    drilling applications, directional drilling systems, rig
    instrumentation and data collection equipment, pipeline handling
    equipment and rig reporting software.
 | 
|   | 
    |   | 
         
 | 
    
    We invest in oil and gas exploration, development and production
    activities in the United States, Canada and Colombia through
    both our wholly owned subsidiaries and our oil and gas joint
    ventures in which we hold
    49-50%
    ownership interests.
 | 
|   | 
    |   | 
         
 | 
    
    We have a 51% ownership interest in a joint venture in Saudi
    Arabia, which owns and actively markets nine rigs in addition to
    the rigs we lease to the joint venture.
 | 
|   | 
    |   | 
         
 | 
    
    We also provide logistics services for onshore drilling in
    Canada using helicopters and fixed-wing aircraft.
 | 
 
    The majority of our business is conducted through our various
    Contract Drilling operating segments, which include our
    drilling, well-servicing, fluid logistics and workover
    operations, on land and offshore. Our oil and gas exploration,
    development and production operations are included in our Oil
    and Gas operating segment. Our operating segments engaged in
    drilling technology and top drive manufacturing, directional
    drilling, rig instrumentation and software, and construction and
    logistics operations are aggregated in our Other Operating
    Segments.
 
    On September 10, 2010, we acquired through a tender offer
    and merger transaction (the Superior Merger), all of
    the outstanding common stock of Superior Well Services, Inc.
    (Superior). Superior provides a wide range of
    wellsite solutions to oil and natural gas companies, consisting
    primarily of technical pumping services, including hydraulic
    fracturing, a process sometimes used in the completion of oil
    and gas wells whereby water, sand and chemicals are injected
    under pressure into subsurface formations to stimulate gas and,
    to a lesser extent, oil production, and downhole surveying
    services. The effects of the Superior Merger and the operating
    results of Superior from the acquisition date to
    December 31, 2010 are included in the accompanying audited
    consolidated financial statements and are reflected in our
    operating segment titled Pressure Pumping. See
    Note 7  Acquisitions and Divestitures for
    additional information.
 
    During 2010, we began actively marketing our oil and gas assets
    in the Horn River basin in Canada and in the Llanos basin in
    Colombia. These assets also include our 49.7% and 50.0%
    ownership interests in our investments of Remora Energy
    International LP (Remora) and Stone Mountain Venture
    Partnership
    
    70
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    (SMVP), respectively, which we account for using the
    equity method of accounting. We determined that the plan of sale
    criteria in the ASC Topic relating to the Presentation of
    Financial Statements for Assets Sold or Held for Sale had been
    met during the third quarter of 2010. Accordingly, the
    accompanying consolidated statements of income (loss), and
    certain accompanying notes to the consolidated financial
    statements, have been updated to retroactively reclassify the
    operating results of these assets, as discontinued operations
    for all periods presented. See Note 21 
    Discontinued Operations for additional discussion.
 
    The consolidated financial statements and related footnotes are
    presented in accordance with accounting principles generally
    accepted in the United States of America (GAAP).
    Certain reclassifications have been made to prior periods to
    conform to the current period presentation, with no effect on
    our consolidated financial position, results of operations or
    cash flows.
 
     | 
     | 
    | 
    Note 2  
 | 
    
    Summary
    of Significant Accounting Policies
 | 
 
    Principles
    of Consolidation
 
    Our consolidated financial statements include the accounts of
    Nabors, as well as all majority owned and non-majority owned
    subsidiaries required to be consolidated under GAAP. Our
    consolidated financial statements exclude majority owned
    entities for which we do not have either (1) the ability to
    control the operating and financial decisions and policies of
    that entity or (2) a controlling financial interest in a
    variable interest entity. All significant intercompany accounts
    and transactions are eliminated in consolidation.
 
    Investments in operating entities where we have the ability to
    exert significant influence, but where we do not control
    operating and financial policies, are accounted for using the
    equity method. Our share of the net income (loss) of these
    entities is recorded as earnings (losses) from unconsolidated
    affiliates in our consolidated statements of income (loss), and
    our investment in these entities is included as a single amount
    in our consolidated balance sheets. Investments in
    unconsolidated affiliates accounted for using the equity method
    totaled $265.8 million and $305.7 million and
    investments in unconsolidated affiliates accounted for using the
    cost method totaled $1.9 million and $.9 million as of
    December 31, 2010 and 2009, respectively. At
    December 31, 2010, assets held for sale include investments
    in unconsolidated affiliates accounted for using the equity
    method totaling $79.5 million. See Note 21 
    Discontinued Operations for additional information.
 
    Similarly, we have investments in offshore funds, which are
    classified as long-term investments and are accounted for using
    the equity method of accounting based on our ownership interest
    in each fund.
 
    Cash
    and Cash Equivalents
 
    Cash and cash equivalents include demand deposits and various
    other short-term investments with original maturities of three
    months or less.
 
    Investments
 
    Short-term
    investments
 
    Short-term investments consist of equity securities,
    certificates of deposit, corporate debt securities,
    mortgage-backed debt securities and asset-backed debt
    securities. Securities classified as
    available-for-sale
    or trading are stated at fair value. Unrealized holding gains
    and temporary losses for
    available-for-sale
    securities are excluded from earnings and, until realized, are
    reported net of taxes in a separate component of equity.
    Unrealized holding losses are included in earnings during the
    period for which the loss is determined to be
    other-than-temporary.
    Gains and losses from changes in the market value of securities
    classified as trading are reported in earnings currently.
    
    71
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    In computing realized gains and losses on the sale of equity
    securities, the specific-identification method is used. In
    accordance with this method, the cost of the equity securities
    sold is determined using the specific cost of the security when
    originally purchased.
 
    Long-term
    investments and other receivables
 
    Our oil and gas financing receivables are classified as
    long-term investments. These receivables represent our financing
    agreements for certain production payment contracts in our Oil
    and Gas segment. We have also invested in overseas funds that
    invest primarily in a variety of public and private
    U.S. and
    non-U.S. securities
    (including asset-backed and mortgage-backed securities, global
    structured-asset securitizations, whole-loan mortgages, and
    participations in whole loans and whole-loan mortgages). These
    investments are non-marketable and do not have published fair
    values. We account for these funds under the equity method of
    accounting based on our percentage ownership interest and
    recognize gains or losses as investment income (loss), currently
    based on changes in the net asset value of our investment during
    the current period.
 
    Inventory
 
    Inventory is stated at the lower of cost or market. Cost is
    determined using the
    first-in,
    first-out method and includes the cost of materials, labor and
    manufacturing overhead. Inventory was comprised of approximately
    $81.3 million in raw materials, $23.6 million in
    work-in-progress
    and $53.9 million in finished goods at December 31,
    2010.
 
    Property,
    Plant and Equipment
 
    Property, plant and equipment, including renewals and
    betterments, are stated at cost, while maintenance and repairs
    are expensed currently. Interest costs applicable to the
    construction of qualifying assets are capitalized as a component
    of the cost of such assets. We provide for the depreciation of
    our drilling and workover rigs using the
    units-of-production
    method. For each day a rig is operating, we depreciate it over
    an approximate 4,900-day period, with the exception of our
    jack-up rigs
    which are depreciated over an 8,030-day period, after provision
    for salvage value. For each day a rig asset is not operating, it
    is depreciated over an assumed depreciable life of
    20 years, with the exception of our
    jack-up
    rigs, where a
    30-year
    depreciable life is used, after provision for salvage value.
 
    Depreciation on our buildings, well-servicing rigs, oilfield
    hauling and mobile equipment, marine transportation and supply
    vessels, aircraft equipment, and other machinery and equipment
    is computed using the straight-line method over the estimated
    useful life of the asset after provision for salvage value
    (buildings  10 to 30 years; well-servicing
    rigs  3 to 15 years; marine transportation and
    supply vessels  10 to 25 years; aircraft
    equipment  5 to 20 years; oilfield hauling and
    mobile equipment and other machinery and equipment  3
    to 10 years). Amortization of capitalized leases is
    included in depreciation and amortization expense. Upon
    retirement or other disposal of fixed assets, the cost and
    related accumulated depreciation are removed from the respective
    accounts and any gains or losses are included in our results of
    operations.
 
    We review our assets for impairment when events or changes in
    circumstances indicate that the carrying amounts of property,
    plant and equipment may not be recoverable. An impairment loss
    is recorded in the period in which it is determined that the sum
    of estimated future cash flows, on an undiscounted basis, is
    less than the carrying amount of the long-lived asset.
    Impairment charges are recorded using discounted cash flows
    which requires the estimation of dayrates and utilization, and
    such estimates can change based on market conditions,
    technological advances in the industry or changes in regulations
    governing the industry. Significant and unanticipated changes to
    the assumptions could result in future impairments. A
    significantly prolonged period of lower oil and natural gas
    prices could continue to adversely affect the demand for and
    prices of our services, which could result in future impairment
    charges. As the determination of whether impairment charges
    
    72
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    should be recorded on our long-lived assets is subject to
    significant management judgment and an impairment of these
    assets could result in a material charge on our consolidated
    statements of income (loss), management believes that accounting
    estimates related to impairment of long-lived assets are
    critical.
 
    Oil
    and Gas Properties
 
    We follow the successful-efforts method of accounting for our
    consolidated subsidiaries oil and gas activities. Under
    the successful-efforts method, lease acquisition costs and all
    development costs are capitalized. Our provision for depletion
    is based on these capitalized costs and is determined on a
    property-by-property
    basis using the
    units-of-production
    method. Proved property acquisition costs are amortized over
    total proved reserves. Costs of wells and related equipment and
    facilities are amortized over the life of proved developed
    reserves. Estimated fair value of proved and unproved properties
    includes the estimated present value of all reasonably expected
    future production, prices and costs. Proved oil and gas
    properties are reviewed when circumstances suggest the need for
    such a review and, are written down to their estimated fair
    value, if required. Unproved properties are reviewed to
    determine if there has been impairment of the carrying value and
    when circumstances suggest an impairment has occurred, are
    written down to their estimated fair value in that period. We
    consider the fair value estimates a Level 3 fair value
    measurement. The estimated fair value of our proved reserves
    generally declines when there is a significant and sustained
    decline in oil and natural gas prices. During 2010, 2009 and
    2008, our impairment tests on the wholly owned oil and gas
    assets of our Oil and Gas operating segment resulted in
    impairment charges of $137.8 million, $48.6 million
    and $21.5 million, respectively. As further discussed below
    in Recent Accounting Pronouncements, we adopted new
    guidance relating to the manner in which our oil and gas
    reserves are estimated as of December 31, 2009.
 
    Exploratory drilling costs are capitalized until the results are
    determined. If proved reserves are not discovered, the
    exploratory drilling costs are expensed. Interest costs related
    to financing major oil and gas projects in progress are
    capitalized until the projects are evaluated or until the
    projects are substantially complete and ready for their intended
    use if the projects are evaluated as successful. Other
    exploratory costs are expensed as incurred.
 
    Our unconsolidated oil and gas joint ventures, which we account
    for under the equity method of accounting, utilize the full-cost
    method of accounting for costs related to oil and natural gas
    properties. Under this method, all such costs (for both
    productive and nonproductive properties) are capitalized and
    amortized on an aggregate basis over the estimated lives of the
    properties using the
    units-of-production
    method. However, these capitalized costs are subject to a
    ceiling test which limits pooled costs to the aggregate of the
    present value of future net revenues attributable to proved oil
    and natural gas reserves, discounted at 10%, plus the lower of
    cost or market value of unproved properties. As further
    discussed below in Recent Accounting Pronouncements and
    in relation to the full-cost ceiling test, our unconsolidated
    oil and gas joint ventures changed the manner in which their oil
    and gas reserves are estimated and the manner in which they
    calculate the ceiling limit on capitalized oil and gas costs as
    of December 31, 2009. Under the new guidance, future
    revenues for purposes of the ceiling test are valued using a
    12-month
    average price, adjusted for the impact of derivatives accounted
    for as cash flow hedges as prescribed by the Securities and
    Exchange Commission (SEC) rules. No full-cost
    ceiling test writedowns were recorded by our unconsolidated oil
    and gas joint ventures during 2010. During 2009, our
    proportionate share of those ventures full-cost ceiling
    test writedowns was $237.1 million.
 
    During 2008, our unconsolidated oil and gas joint ventures
    evaluated the full-cost ceiling using then-current prices for
    oil and natural gas, adjusted for the impact of derivatives
    accounted for as cash flow hedges. As a result, our
    proportionate share of those ventures full-cost ceiling
    test writedowns was $228.3 million.
 
    A significantly prolonged period of lower oil and natural gas
    prices or a reduction to the estimation of reserve quantities
    could continue to result in future impairment charges to our oil
    and gas properties.
    
    73
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    Oil and
    Gas Reserves
 
    Evaluations of oil and gas reserves are integral to making
    investment decisions about oil and gas properties such as
    whether development should proceed. Oil and gas reserve
    quantities are also used as the basis for calculating
    unit-of-production
    depreciation rates and for evaluating impairment. Oil and gas
    reserves include both proved and unproved reserves. Consistent
    with the definitions provided by the SEC, proved oil and gas
    reserves are those quantities of oil and gas, which, by analysis
    of geoscience and engineering data, can be estimated with
    reasonable certainty to be economically producible from a given
    date forward, known reservoirs, and under existing economic
    conditions. Unproved reserves are those with less than
    reasonable certainty of recoverability and include probable
    reserves. Probable reserves are reserves that are more likely to
    be recovered than not.
 
    Estimation of proved reserves, which is based on the requirement
    of reasonable certainty, is an ongoing process involving
    rigorous technical evaluations, commercial and market
    assessment, and detailed analysis of well information such as
    flow rates and reservoir pressure declines. Although we are
    reasonably certain that proved reserves will be produced, the
    timing and amount recovered can be affected by a number of
    factors including completion of development projects, reservoir
    performance, regulatory approvals and significant changes in
    long-term oil and gas price levels.
 
    Goodwill
 
    Goodwill represents the cost in excess of fair value of the net
    assets of companies acquired. We review goodwill and intangible
    assets with indefinite lives for impairment annually or more
    frequently if events or changes in circumstances indicate that
    the carrying amount of the reporting unit exceeds its fair
    value. A significantly prolonged period of lower oil and natural
    gas prices could continue to adversely affect the demand for and
    prices of our services, which could result in future goodwill
    impairment charges for other reporting units due to the
    potential impact on our estimate of our future operating
    results. See Note 3  Impairments and Other
    Charges for discussion of goodwill impairments.
 
    The change in the carrying amount of goodwill for our various
    Contract Drilling segments and our Other Operating Segments for
    the years ended December 31, 2010 and 2009 was as follows:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Acquisitions 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    and 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    Balance as of 
    
 | 
 
 | 
 
 | 
    Purchase 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Cumulative 
    
 | 
 
 | 
 
 | 
    Balance as of 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    December 31, 
    
 | 
 
 | 
 
 | 
    Price 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Translation 
    
 | 
 
 | 
 
 | 
    December 31, 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    2008
 | 
 
 | 
 
 | 
    Adjustments
 | 
 
 | 
 
 | 
    Impairments
 | 
 
 | 
 
 | 
    Adjustment
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Contract Drilling:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    U.S. Lower 48 Land Drilling
 
 | 
 
 | 
    $
 | 
    30,154
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    30,154
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    U.S. Land Well-servicing
 
 | 
 
 | 
 
 | 
    50,839
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    50,839
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    U.S. Offshore
 
 | 
 
 | 
 
 | 
    18,003
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    18,003
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Alaska
 
 | 
 
 | 
 
 | 
    19,995
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    19,995
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    International
 
 | 
 
 | 
 
 | 
    18,983
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    18,983
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Subtotal Contract Drilling
 
 | 
 
 | 
 
 | 
    137,974
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    137,974
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Other Operating Segments
 
 | 
 
 | 
 
 | 
    37,775
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (14,689
 | 
    )(1)
 | 
 
 | 
 
 | 
    3,205
 | 
 
 | 
 
 | 
 
 | 
    26,291
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total
 
 | 
 
 | 
    $
 | 
    175,749
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    (14,689
 | 
    )
 | 
 
 | 
    $
 | 
    3,205
 | 
 
 | 
 
 | 
    $
 | 
    164,265
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
    
    74
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Balance as of 
    
 | 
 
 | 
 
 | 
    Acquisitions and 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Cumulative 
    
 | 
 
 | 
 
 | 
    Balance as of 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    December 31, 
    
 | 
 
 | 
 
 | 
    Purchase Price 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Translation 
    
 | 
 
 | 
 
 | 
    December 31, 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    2009
 | 
 
 | 
 
 | 
    Adjustments
 | 
 
 | 
 
 | 
    Impairments
 | 
 
 | 
 
 | 
    Adjustment
 | 
 
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Contract Drilling:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    U.S. Lower 48 Land Drilling
 
 | 
 
 | 
    $
 | 
    30,154
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    30,154
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    U.S. Land Well-servicing
 
 | 
 
 | 
 
 | 
    50,839
 | 
 
 | 
 
 | 
 
 | 
    5,000
 | 
    (2)
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    55,839
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Pressure Pumping
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    334,992
 | 
    (3)
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    334,992
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    U.S. Offshore
 
 | 
 
 | 
 
 | 
    18,003
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (10,707
 | 
    )(4)
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    7,296
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Alaska
 
 | 
 
 | 
 
 | 
    19,995
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    19,995
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    International
 
 | 
 
 | 
 
 | 
    18,983
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    18,983
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Subtotal Contract Drilling
 
 | 
 
 | 
 
 | 
    137,974
 | 
 
 | 
 
 | 
 
 | 
    339,992
 | 
 
 | 
 
 | 
 
 | 
    (10,707
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    467,259
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Other Operating Segments
 
 | 
 
 | 
 
 | 
    26,291
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    822
 | 
 
 | 
 
 | 
 
 | 
    27,113
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total
 
 | 
 
 | 
    $
 | 
    164,265
 | 
 
 | 
 
 | 
    $
 | 
    339,992
 | 
 
 | 
 
 | 
    $
 | 
    (10,707
 | 
    )
 | 
 
 | 
    $
 | 
    822
 | 
 
 | 
 
 | 
    $
 | 
    494,372
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 
     | 
     | 
     | 
    | 
    (1)  | 
     | 
    
    Represents goodwill impairment associated with Nabors Blue Sky
    Ltd., a Canadian subsidiary, included in our Other Operating
    segment. The impairment charges to Nabors Blue Sky were deemed
    necessary due to the continued deterioration of the downturn in
    the oil and gas industry in Canada which has led to diminished
    demand for immediate heliportable access to remote drilling
    sites. As of December 31, 2009, Nabors Blue Sky Ltd. has no
    recorded goodwill. | 
|   | 
    | 
    (2)  | 
     | 
    
    Represents the preliminary calculations of goodwill recorded in
    connection with our acquisition of Energy Contractors LLC
    (Energy Contractors). See Note 7 
    Acquisitions and Divestitures for additional discussion. | 
|   | 
    | 
    (3)  | 
     | 
    
    Represents the goodwill recorded in connection with our
    acquisition of Superior. See Note 7 
    Acquisitions and Divestitures for additional discussion. | 
|   | 
    | 
    (4)  | 
     | 
    
    Represents goodwill impairment associated with our U.S. Offshore
    operating segment. The impairment charge was deemed necessary
    due to the uncertainty of utilization of some of our rigs as a
    result of changes in our customers plans for future
    drilling operations in the Gulf of Mexico. See
    Note 3  Impairments and other charges for
    additional information. | 
 
    Our Oil and Gas segment does not have any goodwill. Goodwill for
    the consolidated company, totaling approximately
    $6.5 million, is expected to be deductible for tax purposes.
 
    Derivative
    Financial Instruments
 
    We record derivative financial instruments (including certain
    derivative instruments embedded in other contracts) in our
    consolidated balance sheets at fair value as either assets or
    liabilities. The accounting for changes in the fair value of a
    derivative instrument depends on the intended use of the
    derivative and the resulting designation, which is established
    at the inception of a derivative. Accounting for derivatives
    qualifying as fair value hedges allows a derivatives gains
    and losses to offset related results on the hedged item in the
    statement of income. For derivative instruments designated as
    cash flow hedges, changes in fair value, to the extent the hedge
    is effective, are recognized in other comprehensive income until
    the hedged item is recognized in earnings. Hedge effectiveness
    is measured quarterly based on the relative cumulative changes
    in fair value between the derivative contract and the hedged
    item over time. Any change in fair value resulting from
    ineffectiveness is recognized immediately in earnings. Any
    change in fair value of derivative financial instruments that
    are speculative in nature and do not qualify for hedge
    accounting treatment is also recognized
    75
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    immediately in earnings. Proceeds received upon termination of
    derivative financial instruments qualifying as fair value hedges
    are deferred and amortized into income over the remaining life
    of the hedged item using the effective interest rate method.
 
    Litigation
    and Insurance Reserves
 
    We estimate our reserves related to litigation and insurance
    based on the facts and circumstances specific to the litigation
    and insurance claims and our past experience with similar
    claims. We maintain actuarially determined accruals in our
    consolidated balance sheets to cover self-insurance retentions.
    See Note 17  Commitments and Contingencies
    regarding self-insurance accruals. We estimate the range of our
    liability related to pending litigation when we believe the
    amount and range of loss can be estimated. We record our best
    estimate of a loss when the loss is considered probable. When a
    liability is probable and there is a range of estimated loss
    with no best estimate in the range, we record the minimum
    estimated liability related to the lawsuits or claims. As
    additional information becomes available, we assess the
    potential liability related to our pending litigation and claims
    and revise our estimates.
 
    Revenue
    Recognition
 
    We recognize revenues and costs on daywork contracts daily as
    the work progresses. For certain contracts, we receive lump-sum
    payments for the mobilization of rigs and other drilling
    equipment. We defer revenue related to mobilization periods and
    recognize the revenue over the term of the related drilling
    contract. Costs incurred related to a mobilization period for
    which a contract is secured are deferred and recognized over the
    term of the related drilling contract. Costs incurred to
    relocate rigs and other drilling equipment to areas in which a
    contract has not been secured are expensed as incurred. We defer
    recognition of revenue on amounts received from customers for
    prepayment of services until those services are provided.
 
    We recognize revenue for top drives and instrumentation systems
    we manufacture when the earnings process is complete. This
    generally occurs when products have been shipped, title and risk
    of loss have been transferred, collectibility is probable, and
    pricing is fixed and determinable.
 
    In connection with the performance of our cementing services, we
    recognize product and service revenue when the products are
    delivered or services are provided to the customer and
    collectibility is reasonably assured. Product sale prices are
    determined by published price lists provided to our customers.
 
    We recognize, as operating revenue, proceeds from business
    interruption insurance claims in the period that the applicable
    proof of loss documentation is received. Proceeds from casualty
    insurance settlements in excess of the carrying value of damaged
    assets are recognized in losses (gains) on sales and retirements
    of long-lived assets and other expense (income), net in the
    period that the applicable proof of loss documentation is
    received. Proceeds from casualty insurance settlements that are
    expected to be less than the carrying value of damaged assets
    are recognized at the time the loss is incurred and recorded in
    losses (gains) on sales and retirements of long-lived assets and
    other expense (income), net.
 
    We recognize reimbursements received for
    out-of-pocket
    expenses incurred as revenues and account for
    out-of-pocket
    expenses as direct costs.
 
    We recognize revenue on our interests in oil and gas properties
    as production occurs and title passes. We also recognize, as
    operating revenues, gains on sales of our interests in oil and
    gas properties when title passes and on our earnings associated
    with production contracts when realized. We apply the
    entitlement method of accounting for natural gas revenue. Under
    this method, revenues are recognized based on our revenue
    interest of production from our properties in which sales are
    disproportionately allocated to owners because of marketing or
    other contractual arrangements. Accordingly, revenue is not
    recognized for deliveries in excess of our net revenue interest,
    while revenue is recognized for any under delivered volumes.
    Production imbalances
    
    76
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    are generally recorded at estimated sales prices of the
    anticipated future settlements of the imbalances. Production
    volume is monitored to minimize these natural gas imbalances.
 
    Share-Based
    Compensation
 
    We record compensation expense for all share-based awards
    granted. The amount of compensation expense recognized is based
    on the grant-date fair value. Note 6 
    Share-Based Compensation for additional discussion.
 
    Income
    Taxes
 
    We are a Bermuda exempt company and are not subject to income
    taxes in Bermuda. Consequently, income taxes have been provided
    based on the tax laws and rates in effect in the countries in
    which our operations are conducted and income is earned. The
    income taxes in these jurisdictions vary substantially. Our
    effective tax rate for financial statement purposes will
    continue to fluctuate from year to year because our operations
    are conducted in different taxing jurisdictions.
 
    We recognize increases to our tax reserves for uncertain tax
    positions along with interest and penalties as an increase to
    other long-term liabilities.
 
    For U.S. and other jurisdictional income tax purposes, we
    have net operating and other loss carryforwards that we are
    required to assess quarterly for potential valuation allowances.
    We consider the sufficiency of existing temporary differences
    and expected future earnings levels in determining the amount,
    if any, of valuation allowance required against such
    carryforwards and against deferred tax assets.
 
    We do not provide for U.S. or global income or withholding
    taxes on unremitted earnings of all U.S. and certain
    foreign entities, as these earnings are considered permanently
    reinvested. Unremitted earnings, represented by tax basis
    accumulated earnings and profits, totaled approximately
    $7.0 million, $105.0 million and $537.7 million
    as of December 31, 2010, 2009 and 2008, respectively. It is
    not practicable to estimate the amount of deferred income taxes
    associated with these unremitted earnings.
 
    Nabors realizes an income tax benefit associated with certain
    awards issued under our stock plans. We recognize the benefits
    related to tax deductions up to the amount of the compensation
    expense recorded for the award in the consolidated statements of
    income (loss). Any excess tax benefit (i.e., tax deduction in
    excess of compensation expense) is reflected as an increase in
    capital in excess of par. Any shortfall is recorded as a
    reduction to capital in excess of par to the extent of our
    aggregate accumulated pool of windfall benefits, beyond which
    the shortfall would be recognized in the consolidated statements
    of income (loss).
 
    Foreign
    Currency Translation
 
    For certain of our foreign subsidiaries, such as those in Canada
    and Argentina, the local currency is the functional currency,
    and therefore translation gains or losses associated with
    foreign-denominated monetary accounts are accumulated in a
    separate section of the consolidated statements of changes in
    equity. For our other international subsidiaries, the
    U.S. dollar is the functional currency, and therefore local
    currency transaction gains and losses, arising from
    remeasurement of payables and receivables denominated in local
    currency, are included in our consolidated statements of income
    (loss).
 
    Cash
    Flows
 
    We treat the redemption price, including accrued original issue
    discount, on our convertible debt instruments as a financing
    activity for purposes of reporting cash flows in our
    consolidated statements of cash flows.
    
    77
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    Use of
    Estimates
 
    The preparation of financial statements in conformity with GAAP
    requires management to make certain estimates and assumptions.
    These estimates and assumptions affect the reported amounts of
    assets and liabilities, the disclosures of contingent assets and
    liabilities at the balance sheet date and the amounts of
    revenues and expenses recognized during the reporting period.
    Actual results could differ from such estimates. Areas where
    critical accounting estimates are made by management include:
 
     | 
     | 
     | 
    |   | 
         
 | 
    
    financial instruments;
 | 
|   | 
    |   | 
         
 | 
    
    depreciation and amortization of property, plant and equipment;
 | 
|   | 
    |   | 
         
 | 
    
    impairment of long-lived assets;
 | 
|   | 
    |   | 
         
 | 
    
    impairment of goodwill and intangible assets;
 | 
|   | 
    |   | 
         
 | 
    
    impairment of oil and gas properties;
 | 
|   | 
    |   | 
         
 | 
    
    valuation of oil and gas reserves;
 | 
|   | 
    |   | 
         
 | 
    
    income taxes;
 | 
|   | 
    |   | 
         
 | 
    
    litigation and self-insurance reserves;
 | 
|   | 
    |   | 
         
 | 
    
    fair value of assets acquired and liabilities assumed; and
 | 
|   | 
    |   | 
         
 | 
    
    share-based compensation.
 | 
 
    Recent
    Accounting Pronouncements
 
    In December 2008, the SEC issued a Final Rule,
    Modernization of Oil and Gas Reporting. This rule
    revises some of the oil and gas reporting disclosures in
    Regulation S-K
    and
    Regulation S-X
    under the Securities Act and the Securities Exchange Act of 1934
    (the Exchange Act), as well as Industry Guide 2.
    Effective December 31, 2009, the FASB issued revised
    guidance that substantially aligned the oil and gas accounting
    disclosures with the SECs Final Rule. The amendments are
    designed to modernize and update oil and gas disclosure
    requirements to align them with current practices and changes in
    technology. Additionally, this new accounting standard requires
    that entities use
    12-month
    average natural gas and oil prices when calculating the
    quantities of proved reserves and performing the full-cost
    ceiling test calculation. The new standard also clarified that
    an entitys equity-method investments must be considered in
    determining whether it has significant oil and gas activities.
    The disclosure requirements are effective for registration
    statements filed on or after January 1, 2010 and for annual
    financial statements filed on or after December 31, 2009.
    The FASB provided a one-year deferral of the disclosure
    requirements if an entity became subject to the requirements
    because of a change to the definition of significant oil and gas
    activities. When operating results from our wholly owned oil and
    gas activities are considered with operating results from our
    unconsolidated oil and gas joint ventures, which we account for
    under the equity method of accounting, we have significant oil
    and gas activities under the new definition. Our oil and gas
    disclosures are provided in Note 24 
    Supplementary Information on Oil and Gas Exploration and
    Production Activities.
 
    Effective January 1, 2010, we adopted the revised
    provisions relating to consolidation of variable interest
    entities within the Consolidations Topic of the ASC. The revised
    provisions replaced the quantitative approach to identify a
    variable interest entity with a qualitative approach that
    focuses on an entitys control and ability to direct the
    variable interest entitys activities. The application of
    these provisions did not have a material impact on our
    consolidated financial statements.
 
    The FASB issued new guidance relating to revenue recognition for
    contractual arrangements with multiple revenue-generating
    activities. The ASC Topic for revenue recognition includes
    identification of a unit of
    
    78
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    accounting and how arrangement consideration should be allocated
    to separate the units of accounting, when applicable. The new
    guidance, including expanded disclosures, will apply to us for
    contracts entered into after June 15, 2010. We are
    evaluating the impact this guidance may have on future
    contracts. Historically, we have not entered into contractual
    agreements with multiple revenue-generating activities.
 
     | 
     | 
    | 
    Note 3  
 | 
    
    Impairments
    and Other Charges
 | 
 
    The following table provides the components of impairments and
    other charges recorded during the years ended December 31,
    2010, 2009 and 2008:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
 
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
 
 | 
    2008
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Impairment of oil and gas-related assets
 
 | 
 
 | 
    $
 | 
    192,179
 | 
 
 | 
 
 | 
    $
 | 
    197,744
 | 
 
 | 
 
 | 
    $
 | 
    21,537
 | 
 
 | 
| 
 
    Impairment of long-lived assets
 
 | 
 
 | 
 
 | 
    58,045
 | 
 
 | 
 
 | 
 
 | 
    64,229
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Goodwill impairments
 
 | 
 
 | 
 
 | 
    10,707
 | 
 
 | 
 
 | 
 
 | 
    14,689
 | 
 
 | 
 
 | 
 
 | 
    150,008
 | 
 
 | 
| 
 
    Impairment of other intangible assets
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    4,578
 | 
 
 | 
| 
 
    Other-than-temporary
    impairment on equity security
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    18,665
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Other-than-temporary
    impairment on debt security
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    40,300
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Less
    other-than-temporary
    impairment recognized in accumulated other comprehensive income
    (loss)
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (4,651
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Credit-related impairment on investment
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    35,649
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Impairments and other charges
 
 | 
 
 | 
    $
 | 
    260,931
 | 
 
 | 
 
 | 
    $
 | 
    330,976
 | 
 
 | 
 
 | 
    $
 | 
    176,123
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
    Impairments
    of Oil and Gas Assets
 
    In 2010, we recognized impairments of $192.2 million
    related to our wholly owned oil and gas assets. Of this
    total, $137.8 million represents writedowns to the carrying
    value of some acreage in the United States, which we do not have
    future plans to develop due to the sustained low natural gas
    prices, and certain exploratory wells in Colombia, which we have
    determined will be uneconomical to develop in the foreseeable
    future.
 
    The remaining $54.3 million relates to an impairment of a
    financing receivable as a result of the continued commodity
    price deterioration in the Barnett Shale area of north central
    Texas. We determined that this impairment was necessary using
    estimates and assumptions based on estimated cash flows for
    proved and probable reserves and current natural gas prices. We
    believe the estimates used provide a reasonable estimate of
    current fair value. We determined that this represented a
    Level 3 fair value measurement. As of December 31,
    2010, the carrying value of this oil and gas financing
    receivable, which is included in long-term investments, has been
    reduced to $20.1 million. A further protraction or
    continued period of lower commodity prices could result in
    recognition of future impairment charges.
 
    In 2009, we recorded impairments totaling $197.7 million to
    some of our wholly owned oil and gas assets. We recognized an
    impairment of $149.1 million to a financing receivable as a
    result of commodity price deterioration and the lower price
    environment last longer than expected. The prolonged period of
    lower prices significantly reduced demand for future gas
    production and development in the Barnett Shale area of north
    central Texas and influenced our decision not to expend capital
    to develop on some of the undeveloped acreage. The impairment,
    which represented a Level 3 fair value measurement, was
    determined using discounted cash flow models involving
    assumptions based on estimated cash flows for proved and
    probable reserves, undeveloped acreage value, and current and
    expected natural gas prices. Additionally, our annual
    
    79
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    impairment tests on our U.S. wholly owned oil and gas
    properties resulted in impairment charges of $48.6 million
    to writedown the carrying value of some acreage that we do not
    have future plans to develop.
 
    In 2008, our annual impairment tests on our U.S. wholly
    owned oil and gas properties resulted in impairment charges of
    $21.5 million primarily due to the significant decline in
    oil and natural gas prices at the end of 2008. Additional
    discussion of our policy pertaining to the calculation of our
    annual impairment tests is set forth in Oil and Gas
    Properties in Note 2  Summary of
    Significant Accounting Policies.
 
    Impairments
    of Long-Lived Assets
 
    In 2010, we recognized impairments of $58.0 million in
    multiple operating segments. These impairments included
    $23.2 million related to the retirement of certain rig
    components, comprised of engines, top-drive units, building
    modules and other equipment that has become obsolete or
    inoperable in each of these operating segments in our
    U.S. Lower 48 Land Drilling, U.S. Land Well-servicing
    and U.S. Offshore Contract Drilling segment. The impairment
    charges were determined to be necessary as a result of the
    continued lower commodity price environment and its related
    impact on drilling and well-servicing activity and our dayrates.
    A prolonged period of legislative uncertainty in our U.S.
    Offshore operations, or continued period of and lower natural
    gas and oil prices and its potential impact on our utilization
    and dayrates could result in the recognition of future
    impairment charges to additional assets if future cash flow
    estimates, based upon information then available to management,
    indicate that the carrying value of those assets may not be
    recoverable.
 
    The remaining $34.8 million in impairment charges recorded
    during 2010 include $27.3 million related to the impairment
    of some
    jack-up rigs
    in our U.S. Offshore operating segment and
    $7.5 million to our aircraft and some drilling equipment in
    Nabors Blue Sky Ltd. These impairment charges stemmed from our
    annual impairment tests on long-lived assets, which determined
    that the sum of the estimated future cash flows, on an
    undiscounted basis, was less than the carrying amount of these
    assets. The estimated fair values of these assets were
    calculated using discounted cash flow models involving
    assumptions based on our utilization of the assets, revenues as
    well as direct costs, capital expenditures and working capital
    requirements. The impairment charge relating to our
    U.S. Offshore segment was deemed necessary due to the
    economic conditions for drilling in the Gulf of Mexico, as
    discussed below. The impairment charge relating to Nabors Blue
    Sky Ltd. was deemed necessary due to the continued duration of
    the downturn in the oil and gas industry in Canada, which has
    resulted in diminished demand for the remote access services
    provided by this subsidiarys aircraft fleet.
 
    In 2009, we recognized impairments of $64.2 million related
    to retirements of certain assets in our U.S. Offshore,
    Alaska, Canada and International Contract Drilling segments,
    which reduced their aggregate carrying value to their estimated
    aggregate salvage value. The retirements included inactive
    workover
    jack-up rigs
    in our U.S. Offshore and International operations, the
    structural frames of some incomplete coiled tubing rigs in our
    Canada operations and miscellaneous rig components in our Alaska
    operations. The impairment charges resulted from the continued
    deterioration and longer than expected downturn in the demand
    for oil and gas drilling activities.
 
    Goodwill
    Impairments
 
    In 2010, we recognized an impairment of approximately
    $10.7 million relating to our goodwill balance of our
    U.S. Offshore operating segment. The impairment charge
    stemmed from our annual impairment test on goodwill, which
    compared the estimated fair value of each of our reporting units
    to its carrying value. The estimated fair value of our
    U.S. Offshore segment was determined using discounted cash
    flow models involving assumptions based on our utilization of
    rigs and revenues as well as direct costs, general and
    administrative costs, depreciation, applicable income taxes,
    capital expenditures and working capital requirements. We
    determined that the fair value estimated for purposes of this
    test represented a Level 3 fair value measurement. The
    impairment charge was deemed necessary due to the uncertainty of
    utilization of some of
    
    80
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    our rigs as a result of changes in our customers plans for
    future drilling operations in the Gulf of Mexico. Many of our
    customers have suspended drilling operations in the Gulf of
    Mexico, largely as a result of their inability to obtain
    government permits. Although the U.S. deepwater drilling
    moratorium has been lifted, it is uncertain whether our
    customers ability to obtain government permits will
    improve in the near term. A significantly prolonged period of
    lower oil and natural gas prices or changes in laws and
    regulations could adversely affect the demand for and prices of
    our services, which could result in future goodwill impairment
    charges for other reporting units due to the potential impact on
    our estimate of our future operating results. See
    Note 2  Summary of Significant Accounting
    Policies (included under the caption Goodwill) for
    amounts of goodwill related to each of our reporting units.
 
    In 2009, we impaired the remaining goodwill balance of
    $14.7 million of Nabors Blue Sky Ltd., one of our Canadian
    subsidiaries who provides access to remote drilling sites by
    helicopters and fixed-wing aircraft. The impairment charges
    resulted from our annual impairment tests on goodwill which
    compared the estimated fair value of each of our reporting units
    to its carrying value. The estimated fair value of these
    business units was determined using discounted cash flow models
    involving assumptions based on our utilization of rigs or
    aircraft, revenues and earnings from affiliates, as well as
    direct costs, general and administrative costs, depreciation,
    applicable income taxes, capital expenditures and working
    capital requirements. We determined that the fair value
    estimated for purposes of this test represented a Level 3
    fair value measurement. The impairment charges were deemed
    necessary due to the continued downturn in the oil and gas
    industry in Canada and the lack of certainty regarding eventual
    recovery in the value of these operations. This downturn led to
    reduced capital spending by some of our customers and diminished
    demand for our drilling services and for immediate access to
    remote drilling sites.
 
    In 2008, we impaired the entire goodwill balance of
    $145.4 million of our Canada Well-servicing and Drilling
    operating segment and recorded an impairment of
    $4.6 million to Nabors Blue Sky Ltd. This impairment was
    also deemed necessary due to the continued downturn in the oil
    and gas industry in Canada and the lack of certainty regarding
    eventual recovery in the value of these operations. This
    downturn led to reduced capital spending by some of our
    customers and diminished demand for our drilling services and
    for immediate access to remote drilling sites.
 
    Other
    than Temporary Impairments on Debt and Equity
    Securities
 
    In 2009, we recorded
    other-than-temporary
    impairments to our
    available-for-sale
    securities totaling $54.3 million. Of this,
    $35.6 million was related to an investment in a corporate
    bond that was downgraded to non-investment grade level by
    Standard and Poors and Moodys Investors Service
    during the year. Our determination that the impairment was
    other-than-temporary was based on a variety of factors,
    including the length of time and extent to which the market
    value had been less than cost, the financial condition of the
    issuer of the security, and the credit ratings and recent
    reorganization of the issuer.
 
    The remaining $18.7 million related to an equity security
    of a public company whose operations are driven in large measure
    by the price of oil and in which we invested approximately
    $46 million during the second and third quarters of 2008.
    During late 2008, demand for oil and gas began to diminish
    significantly as part of the general deterioration of the global
    economic environment, causing a broad decline in value of nearly
    all oil and gas-related equity securities. Because the trading
    price per share of this security remained below our cost basis
    for an extended period of time, we determined the investment was
    other than temporarily impaired and it was appropriate to write
    down its carrying value to its estimated fair value.
    
    81
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
     | 
     | 
    | 
    Note 4  
 | 
    
    Cash and
    Cash Equivalents and Investments
 | 
 
    Our cash and cash equivalents, short-term and long-term
    investments and other receivables consisted of the following:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    December 31, 
    
 | 
 
 | 
 
 | 
    December 31, 
    
 | 
 
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Cash and cash equivalents
 
 | 
 
 | 
    $
 | 
    641,702
 | 
 
 | 
 
 | 
    $
 | 
    927,815
 | 
 
 | 
| 
 
    Short-term investments:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Trading equity securities
 
 | 
 
 | 
 
 | 
    19,630
 | 
 
 | 
 
 | 
 
 | 
    24,014
 | 
 
 | 
| 
 
    Available-for-sale
    equity securities
 
 | 
 
 | 
 
 | 
    79,698
 | 
 
 | 
 
 | 
 
 | 
    93,651
 | 
 
 | 
| 
 
    Available-for-sale
    debt securities
 
 | 
 
 | 
 
 | 
    60,160
 | 
 
 | 
 
 | 
 
 | 
    45,371
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total short-term investments
 
 | 
 
 | 
 
 | 
    159,488
 | 
 
 | 
 
 | 
 
 | 
    163,036
 | 
 
 | 
| 
 
    Long-term investments and other receivables
 
 | 
 
 | 
 
 | 
    40,300
 | 
 
 | 
 
 | 
 
 | 
    100,882
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total
 
 | 
 
 | 
    $
 | 
    841,490
 | 
 
 | 
 
 | 
    $
 | 
    1,191,733
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
    Certain information related to our cash and cash equivalents and
    short-term investments follows:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    December 31,
 | 
 
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Gross 
    
 | 
 
 | 
 
 | 
    Gross 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Gross 
    
 | 
 
 | 
 
 | 
    Gross 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Unrealized 
    
 | 
 
 | 
 
 | 
    Unrealized 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Unrealized 
    
 | 
 
 | 
 
 | 
    Unrealized 
    
 | 
 
 | 
| 
 
 | 
 
 | 
    Fair 
    
 | 
 
 | 
 
 | 
    Holding 
    
 | 
 
 | 
 
 | 
    Holding 
    
 | 
 
 | 
 
 | 
    Fair 
    
 | 
 
 | 
 
 | 
    Holding 
    
 | 
 
 | 
 
 | 
    Holding 
    
 | 
 
 | 
| 
 
 | 
 
 | 
    Value
 | 
 
 | 
 
 | 
    Gains
 | 
 
 | 
 
 | 
    Losses
 | 
 
 | 
 
 | 
    Value
 | 
 
 | 
 
 | 
    Gains
 | 
 
 | 
 
 | 
    Losses
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Cash and cash equivalents
 
 | 
 
 | 
    $
 | 
    641,702
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    927,815
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Short-term investments:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Trading equity securities
 
 | 
 
 | 
 
 | 
    19,630
 | 
 
 | 
 
 | 
 
 | 
    13,906
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    24,014
 | 
 
 | 
 
 | 
 
 | 
    18,290
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Available-for-sale
    equity securities
 
 | 
 
 | 
 
 | 
    79,698
 | 
 
 | 
 
 | 
 
 | 
    38,176
 | 
 
 | 
 
 | 
 
 | 
    (2,274
 | 
    )
 | 
 
 | 
 
 | 
    93,651
 | 
 
 | 
 
 | 
 
 | 
    50,211
 | 
 
 | 
 
 | 
 
 | 
    (357
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Available-for-sale
    debt securities:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Commercial paper and CDs
 
 | 
 
 | 
 
 | 
    1,275
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    1,284
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Corporate debt securities
 
 | 
 
 | 
 
 | 
    52,022
 | 
 
 | 
 
 | 
 
 | 
    15,274
 | 
 
 | 
 
 | 
 
 | 
    (18
 | 
    )
 | 
 
 | 
 
 | 
    33,852
 | 
 
 | 
 
 | 
 
 | 
    3,162
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Mortgage-backed debt securities
 
 | 
 
 | 
 
 | 
    372
 | 
 
 | 
 
 | 
 
 | 
    16
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    861
 | 
 
 | 
 
 | 
 
 | 
    23
 | 
 
 | 
 
 | 
 
 | 
    (20
 | 
    )
 | 
| 
 
    Mortgage-CMO debt securities
 
 | 
 
 | 
 
 | 
    3,015
 | 
 
 | 
 
 | 
 
 | 
    21
 | 
 
 | 
 
 | 
 
 | 
    (6
 | 
    )
 | 
 
 | 
 
 | 
    5,411
 | 
 
 | 
 
 | 
 
 | 
    71
 | 
 
 | 
 
 | 
 
 | 
    (182
 | 
    )
 | 
| 
 
    Asset-backed debt securities
 
 | 
 
 | 
 
 | 
    3,476
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (268
 | 
    )
 | 
 
 | 
 
 | 
    3,963
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (803
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total
    available-for-sale
    debt securities
 
 | 
 
 | 
 
 | 
    60,160
 | 
 
 | 
 
 | 
 
 | 
    15,311
 | 
 
 | 
 
 | 
 
 | 
    (292
 | 
    )
 | 
 
 | 
 
 | 
    45,371
 | 
 
 | 
 
 | 
 
 | 
    3,256
 | 
 
 | 
 
 | 
 
 | 
    (1,005
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total
    available-for-sale
    securities
 
 | 
 
 | 
 
 | 
    139,858
 | 
 
 | 
 
 | 
 
 | 
    53,487
 | 
 
 | 
 
 | 
 
 | 
    (2,566
 | 
    )
 | 
 
 | 
 
 | 
    139,022
 | 
 
 | 
 
 | 
 
 | 
    53,467
 | 
 
 | 
 
 | 
 
 | 
    (1,362
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total short-term investments
 
 | 
 
 | 
 
 | 
    159,488
 | 
 
 | 
 
 | 
 
 | 
    67,393
 | 
 
 | 
 
 | 
 
 | 
    (2,566
 | 
    )
 | 
 
 | 
 
 | 
    163,036
 | 
 
 | 
 
 | 
 
 | 
    71,757
 | 
 
 | 
 
 | 
 
 | 
    (1,362
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total cash, cash equivalents and short-term investments
 
 | 
 
 | 
    $
 | 
    801,190
 | 
 
 | 
 
 | 
    $
 | 
    67,393
 | 
 
 | 
 
 | 
    $
 | 
    (2,566
 | 
    )
 | 
 
 | 
    $
 | 
    1,090,851
 | 
 
 | 
 
 | 
    $
 | 
    71,757
 | 
 
 | 
 
 | 
    $
 | 
    (1,362
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    
    82
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    Certain information related to the gross unrealized losses of
    our cash and cash equivalents and short-term investments follows:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    As of December 31, 2010
 | 
 
 | 
| 
 
 | 
 
 | 
    Less than 12 Months
 | 
 
 | 
 
 | 
    More than 12 Months
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Gross 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Gross 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Unrealized 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Unrealized 
    
 | 
 
 | 
| 
 
 | 
 
 | 
    Fair Value
 | 
 
 | 
 
 | 
    Loss
 | 
 
 | 
 
 | 
    Fair Value
 | 
 
 | 
 
 | 
    Loss
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Available-for-sale
    equity securities
 
 | 
 
 | 
    $
 | 
    24,924
 | 
 
 | 
 
 | 
    $
 | 
    2,072
 | 
 
 | 
 
 | 
    $
 | 
    882
 | 
 
 | 
 
 | 
    $
 | 
    202
 | 
 
 | 
| 
 
    Available-for-sale
    debt securities: (1)
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Corporate debt securities
 
 | 
 
 | 
 
 | 
    19,747
 | 
 
 | 
 
 | 
 
 | 
    18
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Mortgage-CMO debt securities
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    149
 | 
 
 | 
 
 | 
 
 | 
    6
 | 
 
 | 
| 
 
    Asset-backed debt securities
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    3,464
 | 
 
 | 
 
 | 
 
 | 
    268
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total
    available-for-sale
    debt securities
 
 | 
 
 | 
 
 | 
    19,747
 | 
 
 | 
 
 | 
 
 | 
    18
 | 
 
 | 
 
 | 
 
 | 
    3,613
 | 
 
 | 
 
 | 
 
 | 
    274
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total
 
 | 
 
 | 
    $
 | 
    44,671
 | 
 
 | 
 
 | 
    $
 | 
    2,090
 | 
 
 | 
 
 | 
    $
 | 
    4,495
 | 
 
 | 
 
 | 
    $
 | 
    476
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 
     | 
     | 
     | 
    | 
    (1)  | 
     | 
    
    Our unrealized losses on
    available-for-sale
    debt securities held for more than one year are comprised of
    various types of securities. Each of these securities have a
    rating ranging from A to AAA from
    Standard & Poors and ranging from A2
    to Aaa from Moodys Investors Service and is
    considered of high credit quality. In each case, we do not
    intend to sell these investments, and it is less likely than not
    that we will be required to sell them to satisfy our own cash
    flow and working capital requirements. We believe that we will
    be able to collect all amounts due according to the contractual
    terms of each investment and, therefore, do not consider the
    decline in value of these investments to be
    other-than-temporary
    at December 31, 2010. | 
 
    The estimated fair values of our corporate, mortgage-backed,
    mortgage-CMO and asset-backed debt securities at
    December 31, 2010, classified by time to contractual
    maturity, are shown below. Expected maturities differ from
    contractual maturities because the issuers of the securities may
    have the right to repay obligations without prepayment penalties
    and we may elect to sell the securities prior to the contractual
    maturity date.
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Estimated 
    
 | 
 
 | 
| 
 
 | 
 
 | 
    Fair Value 
    
 | 
 
 | 
| 
 
 | 
 
 | 
    December 31, 2010
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Debt securities:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Due in one year or less
 
 | 
 
 | 
    $
 | 
    1,279
 | 
 
 | 
| 
 
    Due after one year through five years
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Due in more than five years
 
 | 
 
 | 
 
 | 
    58,881
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total debt securities
 
 | 
 
 | 
    $
 | 
    60,160
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
    Certain information regarding our debt and equity securities is
    presented below:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
 
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
 
 | 
    2008
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Available-for-sale:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Proceeds from sales and maturities
 
 | 
 
 | 
    $
 | 
    13,062
 | 
 
 | 
 
 | 
    $
 | 
    23,411
 | 
 
 | 
 
 | 
    $
 | 
    202,382
 | 
 
 | 
| 
 
    Realized gains (losses), net
 
 | 
 
 | 
 
 | 
    (103
 | 
    )
 | 
 
 | 
 
 | 
    (54,314
 | 
    )(1)
 | 
 
 | 
 
 | 
    180
 | 
 
 | 
 
 
     | 
     | 
     | 
    | 
    (1)  | 
     | 
    
    Includes
    other-than-temporary
    impairments of $18.7 million related to an equity security
    and a $35.6 million credit-related impairment to a
    corporate debt security. | 
    
    83
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
     | 
     | 
    | 
    Note 5  
 | 
    
    Fair
    Value Measurements
 | 
 
    As defined in the ASC, fair value is the price that would be
    received upon sale of an asset or paid upon transfer of a
    liability in an orderly transaction between market participants
    at the measurement date (exit price). We utilize market data or
    assumptions that market participants would use in pricing the
    asset or liability, including assumptions about risk and the
    risks inherent in the inputs to the valuation technique. These
    inputs can be readily observable, market-corroborated, or
    generally unobservable. We primarily apply the market approach
    for recurring fair value measurements and endeavor to utilize
    the best information available. Accordingly, we employ valuation
    techniques that maximize the use of observable inputs and
    minimize the use of unobservable inputs. The use of unobservable
    inputs is intended to allow for fair value determinations in
    situations where there is little, if any, market activity for
    the asset or liability at the measurement date. We are able to
    classify fair value balances utilizing a fair value hierarchy
    based on the observability of those inputs. Under the fair value
    hierarchy
 
     | 
     | 
     | 
    |   | 
         
 | 
    
    Level 1 measurements include unadjusted quoted market
    prices for identical assets or liabilities in an active market;
 | 
|   | 
    |   | 
         
 | 
    
    Level 2 measurements include quoted market prices for
    identical assets or liabilities in an active market that have
    been adjusted for items such as effects of restrictions for
    transferability and those that are not quoted but are observable
    through corroboration with observable market data, including
    quoted market prices for similar assets; and
 | 
|   | 
    |   | 
         
 | 
    
    Level 3 measurements include those that are unobservable
    and of a subjective measure.
 | 
 
    The following table sets forth, by level within the fair value
    hierarchy, our financial assets and liabilities that are
    accounted for at fair value on a recurring basis as of
    December 31, 2010. Our financial assets and liabilities are
    classified in their entirety based on the lowest level of input
    that is significant to the fair value measurement.
 
    Recurring
    Fair Value Measurements
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Fair Value as of December 31, 2010
 | 
 
 | 
| 
 
 | 
 
 | 
    Level 1
 | 
 
 | 
 
 | 
    Level 2
 | 
 
 | 
 
 | 
    Level 3
 | 
 
 | 
 
 | 
    Total
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Assets:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Short-term investments:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Available-for-sale
    equity securities  energy industry
 
 | 
 
 | 
    $
 | 
    79,698
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    79,698
 | 
 
 | 
| 
 
    Available-for-sale
    debt securities
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Commercial paper and CDs
 
 | 
 
 | 
 
 | 
    1,275
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    1,275
 | 
 
 | 
| 
 
    Corporate debt securities
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    52,022
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    52,022
 | 
 
 | 
| 
 
    Mortgage-backed debt securities
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    372
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    372
 | 
 
 | 
| 
 
    Mortgage-CMO debt securities
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    3,015
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    3,015
 | 
 
 | 
| 
 
    Asset-backed debt securities
 
 | 
 
 | 
 
 | 
    3,476
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    3,476
 | 
 
 | 
| 
 
    Trading securities  energy industry
 
 | 
 
 | 
 
 | 
    19,630
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    19,630
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total short-term investments
 
 | 
 
 | 
    $
 | 
    104,079
 | 
 
 | 
 
 | 
    $
 | 
    55,409
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    159,488
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Liabilities:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Derivative contract
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    3,440
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    3,440
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    
    84
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    Nonrecurring
    Fair Value Measurements
 
    Fair value measurements were applied with respect to our
    nonfinancial assets and liabilities measured on a nonrecurring
    basis, which consists primarily of goodwill, oil and gas
    financing receivables, intangible assets and other long-lived
    assets, assets acquired and liabilities assumed in a business
    combination, and asset retirement obligations. Refer to
    Note 3  Impairments and Other Charges for
    additional discussion.
 
    Fair
    Value of Financial Instruments
 
    The fair value of our financial instruments has been estimated
    in accordance with GAAP. The fair value of our fixed rate
    long-term debt is estimated based on quoted market prices or
    prices quoted from third-party financial institutions. The fair
    value of our subsidiary preferred stock was estimated based on
    the allocation of the purchase price. The carrying and fair
    values of these liabilities were as follows:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    December 31,
 | 
 
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
| 
 
 | 
 
 | 
    Carrying Value
 | 
 
 | 
 
 | 
    Fair Value
 | 
 
 | 
 
 | 
    Carrying Value
 | 
 
 | 
 
 | 
    Fair Value
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    0.94% senior exchangeable notes due May 2011
 
 | 
 
 | 
    $
 | 
    1,378,178
 | 
 
 | 
 
 | 
    $
 | 
    1,403,315
 | 
 
 | 
 
 | 
    $
 | 
    1,576,480
 | 
 
 | 
 
 | 
    $
 | 
    1,668,368
 | 
 
 | 
| 
 
    6.15% senior notes due February 2018
 
 | 
 
 | 
 
 | 
    966,276
 | 
 
 | 
 
 | 
 
 | 
    1,041,008
 | 
 
 | 
 
 | 
 
 | 
    965,066
 | 
 
 | 
 
 | 
 
 | 
    992,531
 | 
 
 | 
| 
 
    9.25% senior notes due January 2019
 
 | 
 
 | 
 
 | 
    1,125,000
 | 
 
 | 
 
 | 
 
 | 
    1,393,943
 | 
 
 | 
 
 | 
 
 | 
    1,125,000
 | 
 
 | 
 
 | 
 
 | 
    1,403,719
 | 
 
 | 
| 
 
    5.00% senior notes due September 2020
 
 | 
 
 | 
 
 | 
    697,037
 | 
 
 | 
 
 | 
 
 | 
    678,335
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    5.375% senior notes due August 2012(1)
 
 | 
 
 | 
 
 | 
    273,977
 | 
 
 | 
 
 | 
 
 | 
    291,500
 | 
 
 | 
 
 | 
 
 | 
    273,350
 | 
 
 | 
 
 | 
 
 | 
    289,072
 | 
 
 | 
| 
 
    Subsidiary preferred stock
 
 | 
 
 | 
 
 | 
    69,188
 | 
 
 | 
 
 | 
 
 | 
    68,625
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Other
 
 | 
 
 | 
 
 | 
    2,676
 | 
 
 | 
 
 | 
 
 | 
    2,676
 | 
 
 | 
 
 | 
 
 | 
    872
 | 
 
 | 
 
 | 
 
 | 
    872
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    $
 | 
    4,512,332
 | 
 
 | 
 
 | 
    $
 | 
    4,879,402
 | 
 
 | 
 
 | 
    $
 | 
    3,940,768
 | 
 
 | 
 
 | 
    $
 | 
    4,354,562
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 
     | 
     | 
     | 
    | 
    (1)  | 
     | 
    
    Includes $.7 million and $1.1 million as of
    December 31, 2010 and 2009, respectively, related to the
    unamortized loss on the interest rate swap that was unwound
    during the fourth quarter of 2005. | 
 
    The fair values of our cash equivalents, trade receivables and
    trade payables approximate their carrying values due to the
    short-term nature of these instruments.
 
    As of December 31, 2010, our short-term investments were
    carried at fair market value and included $139.9 million
    and $19.6 million in securities classified as
    available-for-sale
    and trading, respectively. As of December 31, 2009, our
    short-term investments were carried at fair market value and
    included $139.0 million and $24.0 million in
    securities classified as
    available-for-sale
    and trading, respectively. The carrying values of our long-term
    investments that are accounted for using the equity method of
    accounting approximate fair value. The fair value of these
    long-term investments totaled $7.4 million and
    $8.3 million as of December 31, 2010 and 2009,
    respectively. The carrying value of our oil and gas financing
    receivables included in long-term investments approximate fair
    value. The carrying value of our oil and gas financing
    receivables totaled $32.9 million and $92.5 million as
    of December 31, 2010 and 2009, respectively. Income and
    gains associated with our oil and gas financing receivables are
    recognized as operating revenues.
 
     | 
     | 
    | 
    Note 6  
 | 
    
    Share-Based
    Compensation
 | 
 
    Total share-based compensation expense, which includes both
    stock options and restricted stock, totaled $13.7 million,
    $106.7 million and $45.4 million for the years ended
    December 31, 2010, 2009 and 2008,
    
    85
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    respectively. Compensation expense related to awards of
    restricted stock totaled $10.5 million, $88.9 million
    and $44.6 million for the years ended December 31,
    2010, 2009 and 2008, respectively, and is included in direct
    costs and general and administrative expenses in our
    consolidated statements of income (loss). Share-based
    compensation expense has been allocated to our various operating
    segments. See Note 22  Segment Information.
    Total share-based compensation expense for 2009 includes the
    recognition of $72.1 million of compensation expense
    related to previously granted restricted stock and option awards
    held by Messrs. Isenberg and Petrello that was unrecognized
    as of April 1, 2009. The recognition of this expense
    resulted from provisions of their respective new employment
    agreements which effectively eliminated the risk of forfeiture
    of such awards. See Note 17  Commitments and
    Contingencies for additional information.
 
    The cash flows resulting from tax deductions in excess of the
    compensation cost recognized for share-based awards (excess tax
    benefits) are classified as financing cash flows. The actual tax
    benefit realized from share-based awards during the years ended
    December 31, 2010, 2009 and 2008 was $.1 million,
    $.3 million and $7.6 million, respectively.
 
    Stock
    Option Plans
 
    As of December 31, 2010, we had several stock plans under
    which options to purchase our common shares could be granted to
    key officers, directors and managerial employees of Nabors and
    its subsidiaries. Options granted under the plans generally are
    at prices equal to the fair market value of the shares on the
    date of the grant. Options granted under the plans generally are
    exercisable in varying cumulative periodic installments after
    one year. In the case of certain key executives, options granted
    under the plans are subject to accelerated vesting related to
    targeted common share prices, or may vest immediately on the
    grant date. Options granted under the plans cannot be exercised
    more than ten years from the date of grant. Options to purchase
    17.3 million and 12.0 million Nabors common shares
    remained available for grant as of December 31, 2010 and
    2009, respectively. Of the common shares available for grant as
    of December 31, 2010, approximately 17.3 million of
    these shares are also available for issuance in the form of
    restricted shares.
 
    The fair value of each option award is estimated on the date of
    grant using the Black-Scholes option-pricing model which uses
    assumptions for the risk-free interest rate, volatility,
    dividend yield and the expected term of the options. The
    risk-free interest rate is based on the U.S. Treasury yield
    curve in effect at the time of grant for a period equal to the
    expected term of the option. Expected volatilities are based on
    implied volatilities from traded options on Nabors common
    shares, historical volatility of Nabors common shares, and
    other factors. We do not assume any dividend yield, since we do
    not pay dividends. We use historical data to estimate the
    expected term of the options and employee terminations within
    the option-pricing model; separate groups of employees that have
    similar historical exercise behavior are considered separately
    for valuation purposes. The expected term of the options
    represents the period of time that the options granted are
    expected to be outstanding.
 
    We also consider an estimated forfeiture rate for these option
    awards, and we recognize compensation cost only for those shares
    that are expected to vest, on a straight-line basis over the
    requisite service period of the award, which is generally the
    vesting term of three to five years. The forfeiture rate is
    based on historical experience. Estimated forfeitures have been
    adjusted to reflect actual forfeitures during 2010.
    
    86
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    Stock option transactions under our various stock-based employee
    compensation plans are presented below:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Weighted- 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Average 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Remaining 
    
 | 
 
 | 
 
 | 
    Aggregate 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Weighted-Average 
    
 | 
 
 | 
 
 | 
    Contractual 
    
 | 
 
 | 
 
 | 
    Intrinsic 
    
 | 
 
 | 
| 
    Options
 | 
 
 | 
    Shares
 | 
 
 | 
 
 | 
    Exercise Price
 | 
 
 | 
 
 | 
    Term
 | 
 
 | 
 
 | 
    Value
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands, except exercise price)
 | 
 
 | 
|  
 | 
| 
 
    Options outstanding as of December 31, 2009
 
 | 
 
 | 
 
 | 
    33,416
 | 
 
 | 
 
 | 
    $
 | 
    18.90
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Granted
 
 | 
 
 | 
 
 | 
    32
 | 
 
 | 
 
 | 
 
 | 
    19.28
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Exercised
 
 | 
 
 | 
 
 | 
    (714
 | 
    )
 | 
 
 | 
 
 | 
    13.28
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Surrendered(1)
 
 | 
 
 | 
 
 | 
    (3,375
 | 
    )
 | 
 
 | 
 
 | 
    22.44
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Forfeited
 
 | 
 
 | 
 
 | 
    (427
 | 
    )
 | 
 
 | 
 
 | 
    12.35
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Options outstanding as of December 31, 2010
 
 | 
 
 | 
 
 | 
    28,932
 | 
 
 | 
 
 | 
    $
 | 
    18.73
 | 
 
 | 
 
 | 
 
 | 
    4.42 years
 | 
 
 | 
 
 | 
    $
 | 
    199,164
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Options exercisable as of December 31, 2010
 
 | 
 
 | 
 
 | 
    24,941
 | 
 
 | 
 
 | 
    $
 | 
    20.19
 | 
 
 | 
 
 | 
 
 | 
    3.82 years
 | 
 
 | 
 
 | 
    $
 | 
    143,939
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 
     | 
     | 
     | 
    | 
    (1)  | 
     | 
    
    Represents unexercised vested stock options, which were
    surrendered by key officers and directors, to satisfy the option
    exercise price and related income taxes. See related discussion
    at Note 13  Common Shares. | 
 
    Of the options outstanding, 24.9 million, 27.2 million
    and 25.9 million were exercisable at weighted-average
    exercise prices of $20.19, $21.04 and $21.99, as of
    December 31, 2010, 2009 and 2008, respectively.
 
    During the years ended December 31, 2010 and 2009,
    respectively, we awarded options vesting over periods up to four
    years to purchase 32,115 and 10,015,883 of our common shares to
    our employees, executive officers and directors. There were no
    options granted during the year ended December 31, 2008.
    During February 2009, this included options to purchase
    3,000,000 and 1,698,427 shares, with grant date fair values
    of $8.8 million and $5.0 million, granted to
    Messrs. Isenberg and Petrello, respectively, and in
    September 2009, an option to purchase 1,726 shares, with a
    grant date fair value of $.01 million, to Mr. Petrello
    in lieu of certain portions of their cash compensation.
 
    The fair value of stock options granted during 2010 and 2009 was
    calculated using the Black-Scholes option pricing model and the
    following weighted-average assumptions:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
 
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
|  
 | 
| 
 
    Weighted average fair value of options granted:
 
 | 
 
 | 
    $
 | 
    6.62
 | 
 
 | 
 
 | 
    $
 | 
    2.85
 | 
 
 | 
| 
 
    Weighted average risk free interest rate:
 
 | 
 
 | 
 
 | 
    1.49
 | 
    %
 | 
 
 | 
 
 | 
    1.75
 | 
    %
 | 
| 
 
    Dividend yield:
 
 | 
 
 | 
 
 | 
    0
 | 
    %
 | 
 
 | 
 
 | 
    0
 | 
    %
 | 
| 
 
    Volatility:(1)
 
 | 
 
 | 
 
 | 
    41.44
 | 
    %
 | 
 
 | 
 
 | 
    34.78
 | 
    %
 | 
| 
 
    Expected life:
 
 | 
 
 | 
 
 | 
    4.0 years
 | 
 
 | 
 
 | 
 
 | 
    4.0 years
 | 
 
 | 
 
 
     | 
     | 
     | 
    | 
    (1)  | 
     | 
    
    Expected volatilities are based on implied volatilities from
    publicly traded options to purchase Nabors common shares,
    historical volatility of Nabors common shares and other
    factors. | 
    
    87
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
 
    A summary of our unvested stock options as of December 31,
    2010, and the changes during the year then ended is presented
    below:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Weighted-Average 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Grant-Date Fair 
    
 | 
 
 | 
| 
    Unvested Stock Options
 | 
 
 | 
    Outstanding
 | 
 
 | 
 
 | 
    Value
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands, except fair values)
 | 
 
 | 
|  
 | 
| 
 
    Unvested as of December 31, 2009
 
 | 
 
 | 
 
 | 
    6,174
 | 
 
 | 
 
 | 
    $
 | 
    2.82
 | 
 
 | 
| 
 
    Granted
 
 | 
 
 | 
 
 | 
    32
 | 
 
 | 
 
 | 
 
 | 
    6.62
 | 
 
 | 
| 
 
    Vested
 
 | 
 
 | 
 
 | 
    (1,929
 | 
    )
 | 
 
 | 
 
 | 
    2.91
 | 
 
 | 
| 
 
    Forfeited
 
 | 
 
 | 
 
 | 
    (336
 | 
    )
 | 
 
 | 
 
 | 
    2.73
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Unvested as of December 31, 2010
 
 | 
 
 | 
 
 | 
    3,941
 | 
 
 | 
 
 | 
    $
 | 
    2.81
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
    The total intrinsic value of options exercised during the years
    ended December 31, 2010, 2009 and 2008 was
    $6.9 million, $19.7 million and $43.6 million,
    respectively. The total fair value of options that vested during
    the years ended December 31, 2010, 2009 and 2008 was
    $5.6 million, $10.8 million and $4.3 million,
    respectively.
 
    As of December 31, 2010, there was $6.2 million of
    total future compensation cost related to unvested options which
    are expected to vest. That cost is expected to be recognized
    over a weighted-average period of approximately one year.
 
    Restricted
    Stock and Restricted Stock Units
 
    Our stock plans allow grants of restricted stock. Restricted
    stock is issued on the grant date, but cannot be sold or
    transferred. Restricted stock vests in varying periodic
    installments ranging from three to five years.
 
    A summary of our restricted stock as of December 31, 2010,
    and the changes during the year then ended, is presented below:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Weighted-Average 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Grant-Date Fair 
    
 | 
 
 | 
| 
    Restricted Stock
 | 
 
 | 
    Outstanding
 | 
 
 | 
 
 | 
    Value
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands, except fair values)
 | 
 
 | 
|  
 | 
| 
 
    Unvested as of December 31, 2009
 
 | 
 
 | 
 
 | 
    3,632
 | 
 
 | 
 
 | 
    $
 | 
    20.99
 | 
 
 | 
| 
 
    Granted
 
 | 
 
 | 
 
 | 
    539
 | 
 
 | 
 
 | 
 
 | 
    22.15
 | 
 
 | 
| 
 
    Vested
 
 | 
 
 | 
 
 | 
    (2,172
 | 
    )
 | 
 
 | 
 
 | 
    22.68
 | 
 
 | 
| 
 
    Forfeited
 
 | 
 
 | 
 
 | 
    (54
 | 
    )
 | 
 
 | 
 
 | 
    28.10
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Unvested as of December 31, 2010
 
 | 
 
 | 
 
 | 
    1,945
 | 
 
 | 
 
 | 
    $
 | 
    19.23
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
    During 2010 and 2009, we awarded 538,496 and 85,000 shares
    of restricted stock, respectively, to our employees and
    directors. These awards had an aggregate value at their date of
    grant of $11.9 million and $1.0 million, respectively,
    and were scheduled to vest over a period of up to four years.
    The fair value of restricted stock that vested during the years
    ended December 31, 2010, 2009 and 2008 was
    $26.7 million, $23.9 million and $39.6 million,
    respectively.
 
    As of December 31, 2010, there was $15.0 million of
    total future compensation cost related to unvested restricted
    stock awards which are expected to vest. That cost is expected
    to be recognized over a weighted-average period of approximately
    one year.
    
    88
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
     | 
     | 
    | 
    Note 7  
 | 
    
    Acquisitions
    and Divestitures
 | 
 
    Acquisitions
 
    On September 10, 2010, we completed the Superior Merger,
    and we acquired all of the issued and outstanding shares of
    Superiors common stock at a price per share equal to
    $22.12, for a cash purchase price of approximately
    $681.3 million. The purchase price for Superior was
    allocated to the net tangible and intangible assets acquired and
    liabilities assumed based on fair value. The excess of the
    purchase price over such fair values was recorded as goodwill.
 
    As part of the Superior Merger, we recognized $7.0 million
    of acquisition-related transaction costs in losses (gains) on
    sales and retirements of long-lived assets and other expense
    (income) for the year ended December 31, 2010. The
    acquisition-related transaction costs consisted primarily of
    investment banking fees and legal and accounting costs. The
    Superior Merger enhances our well-servicing, including the
    addition of hydraulic fracturing to our services, and workover
    capacity work throughout the Appalachian, Mid-Continent, Rocky
    Mountain, Southeast and Southwest regions of the United States.
 
    The following table provides the allocation of the purchase
    price as of the acquisition date. This allocation was based on
    the significant use of estimates and on information that was
    available to management at the time these consolidated financial
    statements were prepared.
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Estimated Fair 
    
 | 
 
 | 
| 
 
 | 
 
 | 
    Value
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Consideration paid in cash
 
 | 
 
 | 
    $
 | 
    681,275
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Assets:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Cash and cash equivalents
 
 | 
 
 | 
    $
 | 
    1,045
 | 
 
 | 
| 
 
    Accounts receivable
 
 | 
 
 | 
 
 | 
    143,842
 | 
 
 | 
| 
 
    Inventory
 
 | 
 
 | 
 
 | 
    33,963
 | 
 
 | 
| 
 
    Other current assets
 
 | 
 
 | 
 
 | 
    7,612
 | 
 
 | 
| 
 
    Property, plant and equipment
 
 | 
 
 | 
 
 | 
    415,000
 | 
 
 | 
| 
 
    Intangible assets
 
 | 
 
 | 
 
 | 
    131,811
 | 
 
 | 
| 
 
    Goodwill
 
 | 
 
 | 
 
 | 
    334,992
 | 
 
 | 
| 
 
    Other long-term assets
 
 | 
 
 | 
 
 | 
    14,726
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total assets
 
 | 
 
 | 
 
 | 
    1,082,991
 | 
 
 | 
| 
 
    Liabilities:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Current liabilities
 
 | 
 
 | 
    $
 | 
    78,277
 | 
 
 | 
| 
 
    Deferred income taxes
 
 | 
 
 | 
 
 | 
    119,201
 | 
 
 | 
| 
 
    Long-term debt
 
 | 
 
 | 
 
 | 
    124,792
 | 
 
 | 
| 
 
    Other long-term liabilities
 
 | 
 
 | 
 
 | 
    10,258
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total liabilities
 
 | 
 
 | 
 
 | 
    332,528
 | 
 
 | 
| 
 
    Preferred stock
 
 | 
 
 | 
 
 | 
    69,188
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net assets acquired
 
 | 
 
 | 
    $
 | 
    681,275
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
    Intangible
    assets
 
    We identified other intangible assets associated with fracturing
    and fluid logistics services, including trade name, technology,
    employment contracts and non-compete agreements and customer
    relationships. The amortization of the intangible assets is
    calculated on a straight-line basis, which estimates the
    consumption of
    
    89
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    economic benefits. The following table summarizes the intangible
    assets recognized at the acquisition date, the monthly
    amortization expense as well as their estimated useful lives:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Estimated Fair 
    
 | 
 
 | 
 
 | 
    Monthly 
    
 | 
 
 | 
 
 | 
    Estimated 
    
 | 
 
 | 
| 
 
 | 
 
 | 
    Value
 | 
 
 | 
 
 | 
    Amortization
 | 
 
 | 
 
 | 
    Useful Life
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Superior trade name
 
 | 
 
 | 
    $
 | 
    88,767
 | 
 
 | 
 
 | 
    $
 | 
    740
 | 
 
 | 
 
 | 
 
 | 
    10 years
 | 
 
 | 
| 
 
    Technology
 
 | 
 
 | 
 
 | 
    5,294
 | 
 
 | 
 
 | 
 
 | 
    88
 | 
 
 | 
 
 | 
 
 | 
    5 years
 | 
 
 | 
| 
 
    Employment contracts and non-compete agreements
 
 | 
 
 | 
 
 | 
    675
 | 
 
 | 
 
 | 
 
 | 
    33
 | 
 
 | 
 
 | 
 
 | 
    1-3 years
 | 
 
 | 
| 
 
    Customer relationships
 
 | 
 
 | 
 
 | 
    37,075
 | 
 
 | 
 
 | 
 
 | 
    308
 | 
 
 | 
 
 | 
 
 | 
    10 years
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total identifiable intangible assets
 
 | 
 
 | 
    $
 | 
    131,811
 | 
 
 | 
 
 | 
    $
 | 
    1,169
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
    Goodwill
 
    Goodwill of $335.0 million arising from the Superior Merger
    consists largely of the expected synergies and economies of
    scale from combining the operations of Nabors and Superior. We
    have allocated the goodwill to our Pressure Pumping operating
    segment. See Note 2  Summary of Significant
    Account Policies for additional information.
 
    Long-term
    debt
 
    Long-term debt included a secured revolving credit facility,
    which had approximately $44.8 million outstanding at the
    acquisition date. As of December 31, 2010, all amounts
    outstanding under the credit facility had been repaid. See
    Note 11  Debt for additional information.
 
    Long-term debt also included second lien notes, which had an
    aggregate principal amount of $80 million outstanding at
    the acquisition date. We exercised our right to redeem these
    notes and, on October 25, 2010, paid $80.4 million to
    repurchase all outstanding notes and related accrued interest.
 
    Pro
    Forma Impact of the Superior Merger
 
    The following unaudited supplemental pro forma results present
    consolidated information as if the Superior Merger had been
    completed as of January 1, 2009. The pro forma results
    include: (i) the amortization associated with an estimate
    of the acquired intangible assets, (ii) interest expense
    associated with debt used to fund the acquisition,
    (iii) the impact of certain fair value adjustments,
    including additional depreciation expense for adjustments to
    property, plant and equipment and reduction to interest expense
    for adjustments to debt, and (iv) costs directly related to
    acquiring Superior. Accordingly, the pro forma results should
    not be considered indicative of the results that would have
    occurred if the acquisition and related borrowings had been
    consummated as of January 1, 2009; nor are they indicative
    of future results.
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
    2009
 | 
| 
 
 | 
 
 | 
    (In thousands, except per share amounts)
 | 
|  
 | 
| 
 
    Total revenues and other income
 
 | 
 
 | 
    $
 | 
    4,936,407
 | 
 
 | 
 
 | 
    $
 | 
    3,954,445
 | 
 
 | 
| 
 
    Net income (loss) attributable to Nabors
 
 | 
 
 | 
    $
 | 
    168,213
 | 
 
 | 
 
 | 
    $
 | 
    (203,719
 | 
    )
 | 
 
    Superiors operating results for the period
    September 10, 2010 through December 31, 2010 are
    reflected in our operating segment titled Pressure Pumping in
    our segment footnote. See Note 22  Segment
    Information for additional discussion.
 
    On December 31, 2010, we purchased the business of Energy
    Contractors for a total cash purchase price of
    $53.4 million. The assets were comprised of vehicles and
    rig equipment and have been included in our
    
    90
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    U.S. Well-servicing operating segment. The purchase price
    was allocated to the net tangible and intangible assets acquired
    based on their preliminary fair value estimates as of
    December 31, 2010. The excess of the purchase price over
    the fair values of the assets acquired was recorded as goodwill
    in the amount of $5.0 million.
 
    Divestitures
 
    From time to time, we may sell a subsidiary or group of assets
    outside of our core markets or business if it is economically
    advantageous for us to do so. During 2010, we began actively
    marketing some of our oil and gas assets. See
    Note 21  Discontinued Operations for additional
    discussion.
 
     | 
     | 
    | 
    Note 8  
 | 
    
    Property,
    Plant and Equipment
 | 
 
    The major components of our property, plant and equipment are as
    follows:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    December 31,
 | 
 
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Land
 
 | 
 
 | 
    $
 | 
    12,087
 | 
 
 | 
 
 | 
    $
 | 
    9,251
 | 
 
 | 
| 
 
    Buildings
 
 | 
 
 | 
 
 | 
    122,635
 | 
 
 | 
 
 | 
 
 | 
    93,874
 | 
 
 | 
| 
 
    Drilling, workover and well-servicing rigs, and related equipment
 
 | 
 
 | 
 
 | 
    10,632,968
 | 
 
 | 
 
 | 
 
 | 
    9,515,677
 | 
 
 | 
| 
 
    Marine transportation and supply vessels
 
 | 
 
 | 
 
 | 
    13,663
 | 
 
 | 
 
 | 
 
 | 
    13,663
 | 
 
 | 
| 
 
    Oilfield hauling and mobile equipment
 
 | 
 
 | 
 
 | 
    551,892
 | 
 
 | 
 
 | 
 
 | 
    533,518
 | 
 
 | 
| 
 
    Other machinery and equipment
 
 | 
 
 | 
 
 | 
    143,976
 | 
 
 | 
 
 | 
 
 | 
    202,389
 | 
 
 | 
| 
 
    Oil and gas properties
 
 | 
 
 | 
 
 | 
    664,289
 | 
 
 | 
 
 | 
 
 | 
    752,809
 | 
 
 | 
| 
 
    Construction in process(1)
 
 | 
 
 | 
 
 | 
    349,455
 | 
    (2)
 | 
 
 | 
 
 | 
    314,493
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
    12,490,965
 | 
 
 | 
 
 | 
 
 | 
    11,435,674
 | 
 
 | 
| 
 
    Less: accumulated depreciation and amortization
 
 | 
 
 | 
 
 | 
    (4,182,122
 | 
    )
 | 
 
 | 
 
 | 
    (3,453,193
 | 
    )
 | 
| 
 
    accumulated depletion on oil and gas properties
 
 | 
 
 | 
 
 | 
    (493,424
 | 
    )
 | 
 
 | 
 
 | 
    (336,431
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    $
 | 
    7,815,419
 | 
 
 | 
 
 | 
    $
 | 
    7,646,050
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 
     | 
     | 
     | 
    | 
    (1)  | 
     | 
    
    Relates to amounts capitalized for new or substantially new
    drilling, workover and well-servicing rigs that were under
    construction and had not yet been placed in service as of
    December 31, 2010 or 2009. | 
|   | 
    | 
    (2)  | 
     | 
    
    Includes suspended wells that have capitalized costs for more
    than one year as of December 31, 2010. Suspended wells
    include the following: | 
 
     | 
     | 
     | 
    |   | 
         
 | 
    
    On the north slope of Alaska, three wells, including two drilled
    in 2007 and one drilled in 2008, were suspended with total
    capitalized costs of $13.7 million and $5.9 million,
    respectively for each year. Further drilling is needed over the
    area to determine if the discovery holds sufficient quantities
    of reserves to justify future investment of infrastructure.
    During 2010, we drilled two wells in this area, and another well
    is planned to spud in March 2011.
 | 
|   | 
    |   | 
         
 | 
    
    In the Cotton Valley in Bossier County, Louisiana, five wells
    were suspended in the Sentell field. Total capitalized costs of
    $2.6 million and $3.6 million relate to three wells
    drilled in 2008 and two wells drilled in 2009, respectively for
    each year. The wells are suspended pending negotiation of a
    pipeline
    right-of-way.
 | 
|   | 
    |   | 
         
 | 
    
    In the Fayetteville Shale in Conway County, Arkansas, two wells,
    drilled in 2008 with total capitalized costs of
    $11.2 million, are suspended pending the outcome of
    drilling in the area by other operators.
 | 
    
    91
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
 
     | 
     | 
     | 
    |   | 
         
 | 
    
    In Reeves County, Texas, five wells, drilled in 2009, have total
    capitalized costs of $3.0 million. Of the five, one well is
    producing and the remaining four are suspended and wait on
    hydraulic fracturing.
 | 
|   | 
    |   | 
         
 | 
    
    In the Middle Magdalena basin of Colombia, two wells were
    suspended. The Guariquies #1 and Morpho #1 wells
    were drilled in 2005 and 2009 with total capitalized costs of
    $1.5 million and $4.3 million, respectively. The
    Guariquies #1 is expected to be turned to production in May
    2011, and the Morpho #1 was turned to production in January
    2011. An offset to Morpho #1 was drilled in 2010.
 | 
|   | 
    |   | 
         
 | 
    
    In the Horn River Basin of British Columbia, Canada, one well
    was drilled in 2009 and was waiting on hydraulic fracturing as
    of December 31, 2010. Total capitalized costs were
    $12.5 million. This well is part of the Canadian oil and
    gas assets that are classified as held-for-sale at
    December 31, 2010. When completed, this well will be
    produced into the wholly owned compression and pipeline facility
    along with two other wells that were drilled in 2009 that are
    currently producing.
 | 
 
    Assets held under capital leases totaled $.9 million as of
    December 31, 2010, and are included in our property, plant
    and equipment within the oilfield hauling and mobile equipment
    asset component. Amortization of assets recorded under capital
    leases is reported in depreciation and amortization expense.
 
    Repair and maintenance expense included in direct costs in our
    consolidated statements of income (loss) totaled
    $390.2 million, $282.1 million and $476.6 million
    for the years ended December 31, 2010, 2009 and 2008,
    respectively.
 
    Interest costs of $12.4 million, $29.9 million and
    $29.8 million were capitalized during the years ended
    December 31, 2010, 2009 and 2008, respectively.
 
     | 
     | 
    | 
    Note 9  
 | 
    
    Investments
    in Unconsolidated Affiliates
 | 
 
    Our principal investments in unconsolidated affiliates accounted
    for using the equity method include a construction and logistics
    operation in Alaska (50% ownership), drilling and workover
    operations located in Saudi Arabia (51% ownership) and oil and
    gas exploration, development and production joint ventures in
    the United States and Colombia (49.7% ownership) and Canada (50%
    ownership). These unconsolidated affiliates are integral to our
    operations in those locations. During 2008, our unconsolidated
    U.S. oil and gas joint venture was deemed a significant
    subsidiary. See Part IV  Item 15. Exhibits,
    Financial Statement Schedules for Schedule III 
    Financial Statements and Notes for NFR Energy LLC (NFR
    Energy) and see Note 16  Related-Party
    Transactions for a discussion of transactions with all of these
    related parties.
 
    As of December 31, 2010 and 2009, our consolidated balance
    sheets reflect our investments in unconsolidated affiliates
    accounted for using the equity method totaled
    $265.8 million and $305.7 million, respectively, and
    our investments in unconsolidated affiliates accounted for using
    the cost method totaled $1.9 million and $.9 million,
    respectively. Assets held for sale include investments in
    unconsolidated affiliates accounted for using the equity method
    totaling $79.5 million at December 31, 2010.
 
    Combined condensed financial data for investments in
    unconsolidated affiliates, including assets classified as held
    for sale, is summarized as follows:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    December 31,
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
    2009
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
|  
 | 
| 
 
    Current assets
 
 | 
 
 | 
    $
 | 
    322,086
 | 
 
 | 
 
 | 
    $
 | 
    354,504
 | 
 
 | 
| 
 
    Long-term assets
 
 | 
 
 | 
 
 | 
    1,332,212
 | 
 
 | 
 
 | 
 
 | 
    1,005,605
 | 
 
 | 
| 
 
    Current liabilities
 
 | 
 
 | 
 
 | 
    345,279
 | 
 
 | 
 
 | 
 
 | 
    313,317
 | 
 
 | 
| 
 
    Long-term liabilities
 
 | 
 
 | 
 
 | 
    460,198
 | 
 
 | 
 
 | 
 
 | 
    283,945
 | 
 
 | 
 
    
    92
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
    2009
 | 
 
 | 
    2008
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
|  
 | 
| 
 
    Gross revenues
 
 | 
 
 | 
    $
 | 
    901,742
 | 
 
 | 
 
 | 
    $
 | 
    960,823
 | 
 
 | 
 
 | 
    $
 | 
    827,044
 | 
 
 | 
| 
 
    Gross margin
 
 | 
 
 | 
 
 | 
    241,831
 | 
 
 | 
 
 | 
 
 | 
    223,005
 | 
 
 | 
 
 | 
 
 | 
    142,763
 | 
 
 | 
| 
 
    Net income (loss)
 
 | 
 
 | 
 
 | 
    48,426
 | 
 
 | 
 
 | 
 
 | 
    (462,613
 | 
    )
 | 
 
 | 
 
 | 
    (444,470
 | 
    )
 | 
| 
 
    Nabors earnings (losses) from unconsolidated affiliates(1)
 
 | 
 
 | 
 
 | 
    33,257
 | 
 
 | 
 
 | 
 
 | 
    (155,433
 | 
    )
 | 
 
 | 
 
 | 
    (192,548
 | 
    )
 | 
 
 
     | 
     | 
     | 
    | 
    (1)  | 
     | 
    
    Nabors earnings (losses) from unconsolidated affiliates
    included in discontinued operations, net of tax was
    $(10.6) million, $(59.2) million, and
    $(37.3) million, respectively, for the years ended
    December 31, 2010, 2009 and 2008. | 
 
    Cumulative undistributed (losses) earnings of our unconsolidated
    affiliates included in our retained earnings as of
    December 31, 2010 and 2009 totaled approximately
    $(373.9) million and $(387.5) million, respectively.
    Our Earnings (losses) from unconsolidated affiliates line in our
    consolidated statements of income (loss) for the years ended
    December 31, 2009 and 2008 include our proportionate share
    of full-cost ceiling test writedowns of $189.3 million and
    $207.3 million, respectively, from our unconsolidated
    U.S. oil and gas joint venture. These writedowns are
    included in our Oil and Gas operating segment results. Our
    proportionate share of full-cost ceiling test writedowns of
    $47.8 million and $21.0 million recorded for the years
    ended December 31, 2009 and 2008, respectively, by our
    other unconsolidated oil and gas joint ventures, SMVP and
    Remora, are reflected in discontinued operations. See
    Note 21  Discontinued Operations for additional
    information.
 
     | 
     | 
    | 
    Note 10  
 | 
    
    Financial
    Instruments and Risk Concentration
 | 
 
    We may be exposed to certain market risks arising from the use
    of financial instruments in the ordinary course of business.
    These risks arise primarily as a result of potential changes in
    the fair market value of financial instruments that would result
    from adverse fluctuations in foreign currency exchange rates,
    credit risk, interest rates, and marketable and non-marketable
    security prices as discussed below.
 
    Foreign
    Currency Risk
 
    We operate in a number of international areas and are involved
    in transactions denominated in currencies other than
    U.S. dollars, which exposes us to foreign exchange rate
    risk or foreign currency devaluation risk. The most significant
    exposures arise in connection with our operations in Venezuela
    and Canada, which usually are substantially unhedged.
 
    At various times, we utilize local currency borrowings (foreign
    currency-denominated debt), the payment structure of customer
    contracts and foreign exchange contracts to selectively hedge
    our exposure to exchange rate fluctuations in connection with
    monetary assets, liabilities, cash flows and commitments
    denominated in certain foreign currencies. A foreign exchange
    contract is a foreign currency transaction, defined as an
    agreement to exchange different currencies at a given future
    date and at a specified rate.
 
    Credit
    Risk
 
    Our financial instruments that potentially subject us to
    concentrations of credit risk consist primarily of cash
    equivalents, short-term and long-term investments, oil and gas
    financing receivables, accounts receivable and our
    range-cap-and-floor derivative instrument. Cash equivalents such
    as deposits and temporary cash investments are held by major
    banks or investment firms. Our short-term and long-term
    investments are managed within established guidelines which
    limit the amounts that may be invested with any one issuer and
    provide guidance as to issuer credit quality. We believe that
    the credit risk in our cash and investment portfolio
    93
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    is minimized as a result of the mix of our investments. In
    addition, our trade receivables are with a variety of U.S.,
    international and foreign-country national oil and gas
    companies. Management considers this credit risk to be limited
    due to the financial resources of these companies. We perform
    ongoing credit evaluations of our customers and we generally do
    not require material collateral. We do occasionally require
    prepayment of amounts from customers whose creditworthiness is
    in question prior to providing services to them. We maintain
    reserves for potential credit losses, and these losses
    historically have been within managements expectations.
 
    Interest
    Rate and Marketable and Non-marketable Security Price
    Risk
 
    Our financial instruments that are potentially sensitive to
    changes in interest rates include our 0.94% senior
    exchangeable notes, our 5.375%, 6.15%, 9.25% and
    5.0% senior notes, our range-cap-and-floor derivative
    instrument, our investments in debt securities (including
    corporate, asset-backed, mortgage-backed debt and mortgage-CMO
    debt securities) and our investments in overseas funds that
    invest primarily in a variety of public and private
    U.S. and
    non-U.S. securities
    (including asset-backed and mortgage-backed securities, global
    structured-asset securitizations, whole-loan mortgages, and
    participations in whole loans and whole-loan mortgages), which
    are classified as long-term investments.
 
    We may utilize derivative financial instruments that are
    intended to manage our exposure to interest rate risks. The use
    of derivative financial instruments could expose us to further
    credit risk and market risk. Credit risk in this context is the
    failure of a counterparty to perform under the terms of the
    derivative contract. When the fair value of a derivative
    contract is positive, the counterparty would owe us, which can
    create credit risk for us. When the fair value of a derivative
    contract is negative, we would owe the counterparty, and
    therefore, we would not be exposed to credit risk. We attempt to
    minimize credit risk in derivative instruments by entering into
    transactions with major financial institutions that have a
    significant asset base. Market risk related to derivatives is
    the adverse effect on the value of a financial instrument that
    results from changes in interest rates. We try to manage market
    risk associated with interest-rate contracts by establishing and
    monitoring parameters that limit the type and degree of market
    risk that we undertake.
 
    On October 21, 2002, we entered into an interest rate swap
    transaction with a third-party financial institution to hedge
    our exposure to changes in the fair value of $200 million
    of our fixed rate 5.375% senior notes due 2012, which has
    been designated as a fair value hedge. Additionally on that
    date, we purchased a LIBOR range-cap and sold a LIBOR floor, in
    the form of a cashless collar, with the same third-party
    financial institution with the intention of mitigating and
    managing our exposure to changes in the three-month
    U.S. dollar LIBOR rate. This transaction does not qualify
    for hedge accounting treatment, and any change in the cumulative
    fair value of this transaction will be reflected as a gain or
    loss in our consolidated statements of income (loss). In June
    2004, we unwound $100 million of the $200 million
    range-cap-and-floor derivative instrument. During the fourth
    quarter of 2005, we unwound the interest rate swap resulting in
    a loss of $2.7 million, which has been deferred and will be
    recognized as an increase to interest expense over the remaining
    life of our 5.375% senior notes due 2012. During the year
    ended December 31, 2005, we recorded interest savings of
    $2.7 million related to our interest rate swap agreement
    accounted for as a fair value hedge, which served to reduce
    interest expense.
 
    The fair value of our range-cap-and-floor transaction is
    recorded as a derivative liability and included in other
    long-term liabilities. It totaled approximately
    $3.4 million and $3.3 million as of December 31,
    2010 and 2009, respectively. During 2010, 2009 and 2008, we
    recorded gains or (losses) of approximately $(.1) million,
    $1.4 million and $(4.7) million, respectively, related
    to this derivative instrument; these amounts are included in
    losses (gains) on sales and retirements of long-lived assets and
    other expense (income), net in our consolidated statements of
    income (loss).
 
    In September 2008 we entered into a three-month written put
    option for one million of our common shares with a strike price
    of $25 per share. We settled this contract during the fourth
    quarter of 2008 and paid
    
    94
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    cash of $22.6 million, net of the premium received on this
    contract, and recognized a loss of $9.9 million which is
    included in losses (gains) on sales and retirements of
    long-lived assets and other expense (income), net in our
    consolidated statements of income (loss).
 
 
    Long-term debt consists of the following:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    December 31, 
    
 | 
 
 | 
 
 | 
    December 31, 
    
 | 
 
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    0.94% senior exchangeable notes due May 2011
 
 | 
 
 | 
    $
 | 
    1,378,178
 | 
 
 | 
 
 | 
    $
 | 
    1,576,480
 | 
 
 | 
| 
 
    5.00% senior notes due September 2020
 
 | 
 
 | 
 
 | 
    697,037
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    6.15% senior notes due February 2018
 
 | 
 
 | 
 
 | 
    966,276
 | 
 
 | 
 
 | 
 
 | 
    965,066
 | 
 
 | 
| 
 
    9.25% senior notes due January 2019
 
 | 
 
 | 
 
 | 
    1,125,000
 | 
 
 | 
 
 | 
 
 | 
    1,125,000
 | 
 
 | 
| 
 
    5.375% senior notes due August 2012
 
 | 
 
 | 
 
 | 
    273,977
 | 
 
 | 
 
 | 
 
 | 
    273,350
 | 
 
 | 
| 
 
    Other
 
 | 
 
 | 
 
 | 
    2,676
 | 
 
 | 
 
 | 
 
 | 
    872
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
    4,443,144
 | 
 
 | 
 
 | 
 
 | 
    3,940,768
 | 
 
 | 
| 
 
    Less: current portion
 
 | 
 
 | 
 
 | 
    1,379,018
 | 
 
 | 
 
 | 
 
 | 
    163
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    $
 | 
    3,064,126
 | 
 
 | 
 
 | 
    $
 | 
    3,940,605
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
    As of December 31, 2010, the maturities of our primary debt
    for each of the five years after 2010 and thereafter are as
    follows:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Paid at Maturity
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    2011
 
 | 
 
 | 
    $
 | 
    1,403,455
 | 
    (1)
 | 
| 
 
    2012
 
 | 
 
 | 
 
 | 
    275,000
 | 
    (2)
 | 
| 
 
    2013
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    2014
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    2015
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Thereafter
 
 | 
 
 | 
 
 | 
    2,800,000(3
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    $
 | 
    4,478,455
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 
     | 
     | 
     | 
    | 
    (1)  | 
     | 
    
    Represents our 0.94% senior exchangeable notes due May 2011. | 
|   | 
    | 
    (2)  | 
     | 
    
    Represents our 5.375% senior notes due August 2012. | 
|   | 
    | 
    (3)  | 
     | 
    
    Represents our 6.15% senior notes due February 2018,
    9.25% senior notes due January 2019, and 5.0% senior
    notes due September 2020. | 
 
    0.94% Senior
    Exchangeable Notes Due May 2011
 
    As of December 31, 2010, the current portion of our
    long-term debt included $1.4 billion par value of Nabors
    Delawares 0.94% senior exchangeable notes that will
    mature in May 2011.
 
    On May 23, 2006, Nabors Delaware completed a private
    placement of $2.5 billion aggregate principal amount of
    0.94% senior exchangeable notes due 2011 that are fully and
    unconditionally guaranteed by Nabors. On June 8, 2006, the
    initial purchasers exercised their option to purchase an
    additional $250 million par value of the 0.94% senior
    exchangeable notes due 2011, increasing the aggregate issuance
    of such notes to $2.75 billion. Nabors Delaware sold the
    notes to the initial purchasers in reliance on the exemption
    from
    
    95
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    registration provided by Section 4(2) of the Securities
    Act. The notes were reoffered by the initial purchasers of the
    notes to qualified institutional buyers under Rule 144A of
    the Securities Act. Nabors and Nabors Delaware filed a
    registration statement on
    Form S-3
    pursuant to the Securities Act with respect to resale of the
    notes and shares received in exchange for the notes on
    August 21, 2006. The notes bear interest at a rate of 0.94%
    per year payable semi-annually on May 15 and November 15,
    beginning on November 15, 2006. Debt issuance costs of
    $28.7 million were capitalized in connection with the
    issuance of the notes in other long-term assets in our
    consolidated balance sheet and are being amortized through May
    2011.
 
    As of December 31, 2010, we had purchased
    $1.35 billion par value of these notes in the open market
    for cash of $1.22 billion. During 2010, 2009 and 2008, we
    recognized pre-tax gains (losses) of $(7.0) million,
    $11.5 million and 12.2 million, respectively, all of
    which are included in losses (gains) on sales and retirements of
    long-lived assets and other expense (income), net in our
    consolidated statements of income (loss) for the respective year.
 
    The notes are exchangeable into cash and, if applicable,
    Nabors common shares based on an exchange rate of the
    equivalent value of 21.8221 our common shares per $1,000
    principal amount of notes (which is equal to an initial exchange
    price of approximately $45.83 per share), subject to adjustment
    during the 30 calendar days ending at the close of business on
    the business day immediately preceding the maturity date and
    prior thereto only under the following circumstances:
    (1) during any calendar quarter (and only during such
    calendar quarter), if the closing price of Nabors common
    shares for at least 20 trading days in the 30 consecutive
    trading days ending on the last trading day of the immediately
    preceding calendar quarter is more than 130% of the applicable
    exchange rate; (2) during the five business day period
    after any ten consecutive trading day period in which the
    trading price per note for each day of that period was less than
    95% of the product of the closing sale price of Nabors
    common shares and the exchange rate of the note; or
    (3) upon the occurrence of specified corporate transactions
    set forth in the indenture.
 
    The notes are unsecured and are effectively junior in right of
    payment to any of Nabors Delawares future secured debt.
    The notes rank equally with any of Nabors Delawares other
    existing and future unsubordinated debt and are senior in right
    of payment to any of Nabors Delawares future subordinated
    debt. Our guarantee of the notes is unsecured and ranks equal in
    right of payment to all of our unsecured and unsubordinated
    indebtedness from time to time outstanding. Holders of the notes
    who exchange their notes in connection with a change in control,
    as defined in the indenture, may be entitled to a make-whole
    premium in the form of an increase in the exchange rate.
    Additionally, in the event of a change in control, noteholders
    may require Nabors Delaware to purchase all or a portion of
    their notes at a purchase price equal to 100% of the principal
    amount of notes, plus accrued and unpaid interest, if any. Upon
    exchange of the notes, a holder will receive for each note
    exchanged an amount in cash equal to the lesser of
    (i) $1,000 or (ii) the exchange value, determined in
    the manner set forth in the indenture. In addition, if the
    exchange value exceeds $1,000 on the exchange date, a holder
    will also receive a number of Nabors common shares for the
    exchange value in excess of $1,000 equal to such excess divided
    by the exchange price.
 
    In connection with the sale of the notes in May 2006, Nabors
    Delaware entered into exchangeable note hedge transactions with
    respect to our common shares. The call options are designed to
    cover, subject to customary anti-dilution adjustments, the net
    number of our common shares that would be deliverable to
    exchanging noteholders in the event of an exchange of the notes.
    Nabors Delaware paid an aggregate amount of approximately
    $583.6 million of the proceeds from the sale of the notes
    to acquire the call options.
 
    Nabors also entered into separate warrant transactions at the
    time of the sale of the notes whereby we sold warrants that give
    the holders the right to acquire approximately 60.0 million
    of our common shares at a strike price of $54.64 per share. On
    exercise of the warrants, we have the option to deliver cash or
    our common shares equal to the difference between the then
    market price and strike price. All of the warrants will be
    exercisable and will expire on August 15, 2011. We received
    aggregate proceeds of approximately
    
    96
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    $421.2 million from the sale of the warrants and used
    $353.4 million of the proceeds to purchase
    10.0 million of our common shares.
 
    The purchased call options and sold warrants are separate
    contracts entered into by Nabors and Nabors Delaware with two
    financial institutions and are not part of the terms of the
    notes and do not affect the holders rights under the
    notes. The purchased call options are expected to offset the
    potential dilution upon exchange of the notes in the event the
    market value of a share of our common shares at the time of
    exercise is greater than the strike price of the purchased call
    options, which corresponds to the initial exchange price of the
    notes, subject to customary adjustments. The warrants
    effectively increase the exchange price of the notes to $54.64
    per common share from the perspective of Nabors, representing a
    55% premium over the last reported bid price of $35.25 per share
    on May 17, 2006. We recorded the exchangeable note hedge
    and warrants in capital in excess of par value as of the
    transaction date, and do not recognize subsequent changes in
    fair value.
 
    We continue to assess our ability to meet this obligation, along
    with our other operating and capital requirements or other
    potential opportunities over the next 12 months, through a
    combination of cash on hand, future operating cash flows,
    possible disposition of non-core assets, availability under our
    unsecured revolving credit facilities and our ability to access
    the capital markets, if required. We also have the ability to
    defer, delay or even cancel some of the planned capital
    expenditures, if necessary. We believe that through a
    combination of these sources, we will have sufficient liquidity
    to meet these obligations.
 
    5.0% Senior
    Notes Due September 2020
 
    On September 14, 2010, Nabors Delaware completed a private
    placement of $700 million aggregate principal amount of
    5.0% senior notes due 2020, which are unsecured and fully
    and unconditionally guaranteed by us. The notes are subject to
    registration rights. The notes were resold by the initial
    purchasers to qualified institutional buyers under
    Rule 144A and to certain investors outside of the United
    States under Regulation S of the Securities Act. The notes
    pay interest semiannually on March 15 and September 15,
    beginning on March 15, 2011 and will mature on
    September 15, 2020.
 
    The notes rank equal in right of payment to all of Nabors
    Delawares existing and future unsubordinated indebtedness,
    and senior in right of payment to all of Nabors Delawares
    existing and future senior subordinated and subordinated
    indebtedness. Our guarantee of the notes is unsecured and an
    unsubordinated obligation and ranks equal in right of payments
    to all of our unsecured and unsubordinated indebtedness from
    time to time outstanding. In the event of a change of control
    triggering event, as defined in the indenture, the holders of
    the notes may require Nabors Delaware to purchase all or a
    portion of the notes at a purchase price equal to 101% of their
    principal amount, plus accrued and unpaid interest, if any. The
    notes are redeemable in whole or in part at any time at the
    option of Nabors Delaware at a redemption price, plus accrued
    and unpaid interest, as specified in the indenture. Nabors
    Delaware used a portion of the proceeds to repay the borrowing
    under the Revolving Credit Facility (defined below) incurred to
    fund the Superior Merger.
 
    On December 14, 2010, we and Nabors Delaware filed a
    registration statement on
    Form S-4
    under the Securities Act. The registration statement related to
    the exchange offer to noteholders required under the
    registration rights agreement related to the 5.0% senior
    notes. On January 20, 2011, Nabors Delaware commenced an
    exchange offer for the notes pursuant to the registration
    statement, which was declared effective by the SEC on
    January 19, 2011. The exchange offer expired on
    February 23, 2011 and closed on February 28, 2011.
 
    Prior to the issuance of the notes, we entered into a Treasury
    rate lock with a total notional amount of $500 million to
    hedge the risk of changes in semiannual interest payments. We
    designated the Treasury rate lock derivative as a cash flow
    hedge and upon settlement paid $5.7 million, due to the
    change in the fair value of the derivative. The loss was
    recognized as a component of accumulated other comprehensive
    income in our
    
    97
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    consolidated statement of changes in equity and will be
    amortized as additional interest expense over the life of the
    notes. There was no ineffectiveness associated with this hedge
    during the year ended December 31, 2010.
 
    6.15% Senior
    Notes Due February 2018
 
    On February 20, 2008, Nabors Delaware completed a private
    placement of $575 million aggregate principal amount of
    6.15% senior notes due 2018 with registration rights, which
    are unsecured and are fully and unconditionally guaranteed by
    us. On July 22, 2008, Nabors Delaware completed a private
    placement of $400 million aggregate principal amount of
    6.15% senior notes due 2018 with registration rights, which
    are unsecured and are fully and unconditionally guaranteed by
    us. These new senior notes were an additional issuance under the
    indenture pursuant to which Nabors Delaware issued
    $575 million 6.15% senior notes due 2018 on
    February 20, 2008 described above and are subject to the
    same rates, terms and conditions and together will be treated as
    a single class of debt securities under the indenture (together
    $975 million 6.15% senior notes due 2018). The issue
    of senior notes was resold by the initial purchasers to
    qualified institutional buyers under Rule 144A of the
    Securities Act and to certain investors outside of the United
    States under Regulation S of the Securities Act. The senior
    notes bear interest at a rate of 6.15% per year, payable
    semi-annually on February 15 and August 15 of each year,
    beginning August 15, 2008. The senior notes will mature on
    February 15, 2018.
 
    The senior notes are unsecured and are effectively junior in
    right of payment to any of Nabors Delawares future secured
    debt. The senior notes rank equally with any of Nabors
    Delawares other existing and future unsubordinated debt
    and are senior in right of payment to any of Nabors
    Delawares future senior subordinated debt. Our guarantee
    of the senior notes is unsecured and ranks equal in right of
    payment to all of our unsecured and unsubordinated indebtedness
    from time to time outstanding. The senior notes are subject to
    redemption by Nabors Delaware, in whole or in part, at any time
    at a redemption price equal to the greater of (i) 100% of
    the principal amount of the senior notes then outstanding to be
    redeemed; or (ii) the sum of the present values of the
    remaining scheduled payments of principal and interest,
    determined in the manner set forth in the indenture. In the
    event of a change in control triggering event, as defined in the
    indenture, the holders of senior notes may require Nabors
    Delaware to purchase all or any part of each senior note in cash
    equal to 101% of the principal amount plus accrued and unpaid
    interest, if any, to the date of purchase, except to the extent
    Nabors Delaware has exercised its right to redeem the senior
    notes. Nabors Delaware used the proceeds of the offering of the
    senior notes for general corporate purposes, including the
    repayment of debt.
 
    On August 20, 2008, we and Nabors Delaware filed a
    registration statement on Amendment No. 1 to
    Form S-4
    with the SEC with respect to an offer to exchange the combined
    $975 million aggregate principal amount of
    6.15% senior notes due 2018 for other notes that would be
    registered and have terms substantially identical in all
    material respects to these notes pursuant to the applicable
    registration rights agreement, including being fully and
    unconditionally guaranteed by us. On September 2, 2008, the
    registration statement was declared effective by the SEC and the
    exchange offer expired on October 9, 2008. On
    October 16, 2008, Nabors Delaware issued $974,965,000 of
    notes pursuant to the registration statement in exchange for an
    equal amount of the original notes due 2018 that were properly
    tendered.
 
    9.25% Senior
    Notes Due January 2019
 
    On January 12, 2009, Nabors Delaware completed a private
    placement of $1.125 billion aggregate principal amount of
    9.25% senior notes due 2019 with registration rights, which
    are unsecured and are fully and unconditionally guaranteed by
    us. The issue of senior notes was resold by the initial
    purchasers to qualified institutional buyers under
    Rule 144A and to certain investors outside of the United
    States under Regulation S of the Securities Act. The senior
    notes bear interest at a rate of 9.25% per year, payable
    semi-annually on January 15 and July 15 of each year, beginning
    July 15, 2009. The senior notes will mature on
    January 15, 2019.
    
    98
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    The senior notes are unsecured and are junior in right of
    payment to any of Nabors Delawares future secured debt.
    The senior notes rank equally with any of Nabors Delawares
    other existing and future unsubordinated debt and are senior in
    right of payment to any of Nabors Delawares future senior
    subordinated debt. Our guarantee of the senior notes is
    unsecured and ranks equal in right of payment to all of our
    unsecured and unsubordinated indebtedness from time to time
    outstanding. The senior notes are subject to redemption by
    Nabors Delaware, in whole or in part, at any time at a
    redemption price equal to the greater of (i) 100% of the
    principal amount of the senior notes then outstanding to be
    redeemed; or (ii) the sum of the present values of the
    remaining scheduled payments of principal and interest,
    determined in the manner set forth in the applicable indenture.
    In the event of a change in control triggering event, as defined
    in the indenture, the holders of senior notes may require Nabors
    Delaware to purchase all or any part of each senior note in cash
    equal to 101% of the principal amount plus accrued and unpaid
    interest, if any, to the date of purchase, except to the extent
    Nabors Delaware has exercised its right to redeem the senior
    notes. Nabors Delaware is using the proceeds of the offering of
    the senior notes for the repayment or repurchase of indebtedness
    and general corporate purposes.
 
    On March 30, 2009, we and Nabors Delaware filed a
    registration statement on
    Form S-4
    under the Securities Act. The registration statement related to
    the exchange offer to noteholders required under the
    registration rights agreement related to the 9.25% senior
    notes. On May 11, 2009 the registration statement was
    declared effective by the SEC. On July 23, 2009 Nabors
    Delaware issued $1,069,392,000 of notes pursuant to the
    registration statement in exchange for an equal amount of the
    original notes due 2019 that were properly tendered.
 
    5.375% Senior
    Notes Due August 2012
 
    On August 22, 2002, Nabors Delaware issued
    $275 million aggregate principal amount of
    5.375% senior notes due 2012, which are fully and
    unconditionally guaranteed by Nabors. The senior notes were
    resold by a placement agent to qualified institutional buyers
    under Rule 144A of the Securities Act of 1933. Interest on
    the senior notes is payable semi-annually on February 15 and
    August 15 of each year.
 
    The notes are unsecured and are effectively junior in right of
    payment to any of Nabors Delawares future secured debt.
    The notes rank equal in right of payment with any of Nabors
    Delawares future unsubordinated debt and are senior in
    right of payment to any of Nabors Delawares subordinated
    debt. The guarantee of Nabors with respect to the senior notes
    issued by Nabors Delaware, is similarly unsecured and has a
    similar ranking to the series of senior notes so guaranteed.
 
    Subject to certain qualifications and limitations, the
    indentures governing the senior notes issued by Nabors Delaware
    limit the ability of Nabors and its subsidiaries to incur liens
    and to enter into sale and lease-back transactions. In addition,
    the indentures limit our ability to enter into mergers,
    consolidations or transfers of all or substantially all of our
    assets unless the successor company assumes their obligations
    under the applicable indenture.
 
    Revolving
    Credit Facilities
 
    On September 7, 2010, we and Nabors Delaware entered into a
    credit agreement under which the lenders committed to provide to
    Nabors Delaware up to $700 million under an unsecured
    revolving credit facility (the Revolving Credit
    Facility) or the (Facility). The Facility also
    provides Nabors Delaware the option to increase the aggregate
    principal amount of commitments to $850 million by adding
    new lenders to the Facility or by asking existing lenders under
    the Facility to increase their commitments (in each case with
    the consent of the new lenders or the increasing lenders). In
    January 2011, Nabors Delaware added a new lender to the Facility
    and increased the total commitments under the Facility to
    $750 million. We fully and unconditionally guarantee the
    obligations under the Revolving Credit Facility, which matures
    in four years.
    
    99
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    Borrowings under the Revolving Credit Facility bear interest, at
    Nabors Delawares option, at either (x) the Base
    Rate (as defined below) plus the applicable interest
    margin, calculated on the basis of the actual number of days
    elapsed in a year of 365 days and payable quarterly in
    arrears or (y) interest periods of one, two, three or six
    months at an annual rate equal to the LIBOR for the
    corresponding deposits of U.S. dollars, plus the applicable
    interest margin, payable on the last days of the relevant
    interest periods (but in any event at least every three months).
    The Base Rate is defined, for any day, as a
    fluctuating rate per annum equal to the highest of (i) the
    Federal Funds Rate, as published by the Federal Reserve Bank of
    New York, plus
    1/2
    of 1%, (ii) the prime commercial lending rate of UBS AG, as
    established from time to time at its Stamford Branch and
    (iii) LIBOR for an interest period of one month beginning
    on such day plus 1%.
 
    On February 11, 2011, one of our subsidiaries established a
    credit facility, which we unconditionally guarantee, for
    approximately US$50 million.
 
    Other
    Debt Transactions
 
    In January and February 2009, Nabors Holdings 1, ULC, one of our
    wholly owned subsidiaries (Nabors Holdings),
    repurchased $56.6 million par value of the
    $225 million principal amount of its 4.875% senior
    notes due August 2009 in the open market for cash totaling
    $56.8 million. In August 2009, Nabors Holdings paid
    $168.4 million to redeem the remaining notes. The
    redemption resulted in no gain or loss as the notes were
    redeemed at a price equal to their carrying value.
 
    Short-Term
    Borrowings
 
    We had five
    letter-of-credit
    facilities with various banks as of December 31, 2010. We
    did not have any short-term borrowings outstanding at
    December 31, 2010 or 2009. Availability and borrowings
    under our
    letter-of-credit
    facilities are as follows:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    December 31,
 | 
 
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Credit available
 
 | 
 
 | 
    $
 | 
    270,263
 | 
 
 | 
 
 | 
    $
 | 
    245,442
 | 
 
 | 
| 
 
    Letters of credit outstanding, inclusive of financial and
    performance guarantees
 
 | 
 
 | 
 
 | 
    (70,605
 | 
    )
 | 
 
 | 
 
 | 
    (71,389
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Remaining availability
 
 | 
 
 | 
    $
 | 
    199,658
 | 
 
 | 
 
 | 
    $
 | 
    174,053
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 
    We apply the provisions of the Income Taxes Topic in the ASC
    relating to uncertain tax positions. The change in our
    unrecognized tax benefits for years ended December 31,
    2010, 2009 and 2008 were as follows:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
 
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
 
 | 
    2008
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Balance as of January 1,
 
 | 
 
 | 
    $
 | 
    69,048
 | 
 
 | 
 
 | 
    $
 | 
    51,819
 | 
 
 | 
 
 | 
    $
 | 
    55,627
 | 
 
 | 
| 
 
    Additions based on tax positions related to the current year
 
 | 
 
 | 
 
 | 
    1,026
 | 
 
 | 
 
 | 
 
 | 
    4,787
 | 
 
 | 
 
 | 
 
 | 
    3,990
 | 
 
 | 
| 
 
    Additions for tax positions of prior years
 
 | 
 
 | 
 
 | 
    17,060
 | 
 
 | 
 
 | 
 
 | 
    12,889
 | 
 
 | 
 
 | 
 
 | 
    4,168
 | 
 
 | 
| 
 
    Reductions for tax positions of prior years
 
 | 
 
 | 
 
 | 
    (4,709
 | 
    )
 | 
 
 | 
 
 | 
    (447
 | 
    )
 | 
 
 | 
 
 | 
    (10,966
 | 
    )
 | 
| 
 
    Settlements
 
 | 
 
 | 
 
 | 
    (1,251
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (1,000
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Balance as of December 31,
 
 | 
 
 | 
    $
 | 
    81,174
 | 
 
 | 
 
 | 
    $
 | 
    69,048
 | 
 
 | 
 
 | 
    $
 | 
    51,819
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    
    100
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    The balance also represents the amount of unrecognized tax
    benefits that, if recognized, would favorably impact the
    effective income tax rate in future periods. As of
    December 31, 2010, 2009 and 2008, we had approximately
    $42.9 million, $38.5 million and $18.6 million,
    respectively, of interest and penalties related to our total
    gross unrecognized tax benefits. During the years ended
    December 31, 2010, 2009 and 2008, we accrued and recognized
    estimated interest related to unrecognized tax benefits and
    penalties of approximately $5.1 million, $5.2 million
    and $5.3 million, respectively. We recognize interest and
    penalties related to income tax matters in the income tax
    expense line item in our consolidated statements of income
    (loss).
 
    We are subject to income taxes in the United States and numerous
    other jurisdictions. A number of our United States and
    non-United
    States income tax returns from 1995 through 2009 are currently
    under audit examination. We anticipate that several of these
    audits could be finalized within 12 months. It is possible
    that the benefit that relates to our unrecognized tax positions
    could significantly increase or decrease within 12 months.
    However, based on the current status of examinations, and the
    protocol for finalizing audits with the relevant tax
    authorities, which could include formal legal proceedings, it is
    not possible to estimate the future impact of the amount of
    changes, if any, to recorded uncertain tax positions at
    December 31, 2010.
 
    Income (loss) from continuing operations before income taxes was
    comprised of the following:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
 
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
 
 | 
    2008
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    United States and Other Jurisdictions:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    United States
 
 | 
 
 | 
    $
 | 
    (254,897
 | 
    )
 | 
 
 | 
    $
 | 
    (716,694
 | 
    )
 | 
 
 | 
    $
 | 
    313,704
 | 
 
 | 
| 
 
    Other jurisdictions
 
 | 
 
 | 
 
 | 
    336,943
 | 
 
 | 
 
 | 
 
 | 
    554,623
 | 
 
 | 
 
 | 
 
 | 
    417,550
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Income (loss) before income taxes from continuing operations
 
 | 
 
 | 
    $
 | 
    82,046
 | 
 
 | 
 
 | 
    $
 | 
    (162,071
 | 
    )
 | 
 
 | 
    $
 | 
    731,254
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
    Income taxes have been provided based upon the tax laws and
    rates in the countries in which operations are conducted and
    income is earned. We are a Bermuda-exempt company. Bermuda does
    not impose corporate income taxes. Our U.S. subsidiaries
    are subject to a U.S. federal tax rate of 35%.
 
    Income tax expense (benefit) from continuing operations
    consisted of the following:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
 
 | 
    2008
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Current:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    U.S. federal
 
 | 
 
 | 
    $
 | 
    (137,847
 | 
    )
 | 
 
 | 
    $
 | 
    (15,434
 | 
    )
 | 
 
 | 
    $
 | 
    59,914
 | 
 
 | 
| 
 
    Outside the U.S. 
 
 | 
 
 | 
 
 | 
    54,779
 | 
 
 | 
 
 | 
 
 | 
    84,220
 | 
 
 | 
 
 | 
 
 | 
    119,889
 | 
 
 | 
| 
 
    State
 
 | 
 
 | 
 
 | 
    (748
 | 
    )
 | 
 
 | 
 
 | 
    746
 | 
 
 | 
 
 | 
 
 | 
    9,029
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
    (83,816
 | 
    )
 | 
 
 | 
 
 | 
    69,532
 | 
 
 | 
 
 | 
 
 | 
    188,832
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Deferred:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    U.S. federal
 
 | 
 
 | 
 
 | 
    40,731
 | 
 
 | 
 
 | 
 
 | 
    (148,188
 | 
    )
 | 
 
 | 
 
 | 
    57,845
 | 
 
 | 
| 
 
    Outside the U.S. 
 
 | 
 
 | 
 
 | 
    12,006
 | 
 
 | 
 
 | 
 
 | 
    (46,462
 | 
    )
 | 
 
 | 
 
 | 
    (44,651
 | 
    )
 | 
| 
 
    State
 
 | 
 
 | 
 
 | 
    6,265
 | 
 
 | 
 
 | 
 
 | 
    (8,685
 | 
    )
 | 
 
 | 
 
 | 
    7,634
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
    59,002
 | 
 
 | 
 
 | 
 
 | 
    (203,335
 | 
    )
 | 
 
 | 
 
 | 
    20,828
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Income tax expense (benefit)
 
 | 
 
 | 
    $
 | 
    (24,814
 | 
    )
 | 
 
 | 
    $
 | 
    (133,803
 | 
    )
 | 
 
 | 
    $
 | 
    209,660
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    
    101
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    Nabors is not subject to tax in Bermuda. A reconciliation of the
    differences between taxes on income (loss) before income taxes
    computed at the appropriate statutory rate and our reported
    provision for income taxes follows:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
 
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
 
 | 
    2008
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Income tax provision at statutory rate (Bermuda rate of 0%)
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
| 
 
    Taxes on U.S. and other international earnings (losses) at
    greater than the Bermuda rate
 
 | 
 
 | 
 
 | 
    (43,078
 | 
    )
 | 
 
 | 
 
 | 
    (130,607
 | 
    )
 | 
 
 | 
 
 | 
    190,466
 | 
 
 | 
| 
 
    Increase in valuation allowance
 
 | 
 
 | 
 
 | 
    2,407
 | 
 
 | 
 
 | 
 
 | 
    6,062
 | 
 
 | 
 
 | 
 
 | 
    6,604
 | 
 
 | 
| 
 
    Effect of change in tax rate
 
 | 
 
 | 
 
 | 
    40
 | 
 
 | 
 
 | 
 
 | 
    (9,248
 | 
    )
 | 
 
 | 
 
 | 
    (5,406
 | 
    )
 | 
| 
 
    Establishment of a deferred tax asset, net of valuation allowance
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    1,990
 | 
 
 | 
| 
 
    Tax reserves and interest
 
 | 
 
 | 
 
 | 
    8,808
 | 
 
 | 
 
 | 
 
 | 
    14,652
 | 
 
 | 
 
 | 
 
 | 
    (657
 | 
    )
 | 
| 
 
    State income taxes
 
 | 
 
 | 
 
 | 
    7,009
 | 
 
 | 
 
 | 
 
 | 
    (14,662
 | 
    )
 | 
 
 | 
 
 | 
    16,663
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Income tax expense (benefit)
 
 | 
 
 | 
    $
 | 
    (24,814
 | 
    )
 | 
 
 | 
    $
 | 
    (133,803
 | 
    )
 | 
 
 | 
    $
 | 
    209,660
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Effective tax rate
 
 | 
 
 | 
 
 | 
    (30
 | 
    )%
 | 
 
 | 
 
 | 
    83
 | 
    %
 | 
 
 | 
 
 | 
    29
 | 
    %
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
    Our effective income tax rate for 2010 and 2009 reflects the
    disparity between losses in our U.S. operations
    (attributable primarily to impairments) and income in our other
    operations primarily in lower tax jurisdictions. Because the
    U.S. income tax rate is higher than that of other
    jurisdictions, the tax benefit from our U.S. losses was not
    proportionately reduced by the tax expense from our other
    operations. During 2010 and 2009, the result was a net tax
    benefit. In 2009, that benefit represented a significant
    percentage of our consolidated loss from continuing operations
    before income taxes. Because of the manner in which that number
    was derived, we do not believe it presents a meaningful basis
    for comparing our 2009 effective income tax rate to either the
    2010 or 2009, effective income tax rate.
 
    The significant components of our deferred tax assets and
    liabilities were as follows:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    December 31,
 | 
 
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Deferred tax assets:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net operating loss carryforwards
 
 | 
 
 | 
    $
 | 
    1,848,956
 | 
 
 | 
 
 | 
    $
 | 
    1,852,829
 | 
 
 | 
| 
 
    Equity compensation
 
 | 
 
 | 
 
 | 
    19,262
 | 
 
 | 
 
 | 
 
 | 
    23,340
 | 
 
 | 
| 
 
    Deferred revenue
 
 | 
 
 | 
 
 | 
    13,428
 | 
 
 | 
 
 | 
 
 | 
    30,944
 | 
 
 | 
| 
 
    Tax credit and other attribute carryforwards
 
 | 
 
 | 
 
 | 
    89,141
 | 
 
 | 
 
 | 
 
 | 
    17,521
 | 
 
 | 
| 
 
    Insurance loss reserve
 
 | 
 
 | 
 
 | 
    28,537
 | 
 
 | 
 
 | 
 
 | 
    13,173
 | 
 
 | 
| 
 
    Other
 
 | 
 
 | 
 
 | 
    62,324
 | 
 
 | 
 
 | 
 
 | 
    114,520
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Subtotal
 
 | 
 
 | 
 
 | 
    2,061,648
 | 
 
 | 
 
 | 
 
 | 
    2,052,327
 | 
 
 | 
| 
 
    Valuation allowance
 
 | 
 
 | 
 
 | 
    (1,514,153
 | 
    )
 | 
 
 | 
 
 | 
    (1,570,890
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Deferred tax assets
 
 | 
 
 | 
    $
 | 
    547,495
 | 
 
 | 
 
 | 
    $
 | 
    481,437
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    
    102
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    December 31,
 | 
 
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Deferred tax liabilities:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Depreciation, amortization and depletion for tax in excess of
    book expense
 
 | 
 
 | 
    $
 | 
    1,123,622
 | 
 
 | 
 
 | 
    $
 | 
    950,318
 | 
 
 | 
| 
 
    Variable interest investments
 
 | 
 
 | 
 
 | 
    75,204
 | 
 
 | 
 
 | 
 
 | 
    3,064
 | 
 
 | 
| 
 
    Other
 
 | 
 
 | 
 
 | 
    54,738
 | 
 
 | 
 
 | 
 
 | 
    47,553
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Deferred tax liability
 
 | 
 
 | 
 
 | 
    1,253,564
 | 
 
 | 
 
 | 
 
 | 
    1,000,935
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net deferred assets (liabilities)
 
 | 
 
 | 
    $
 | 
    (706,069
 | 
    )
 | 
 
 | 
    $
 | 
    (519,498
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Balance Sheet Summary
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net current deferred asset
 
 | 
 
 | 
    $
 | 
    31,510
 | 
 
 | 
 
 | 
    $
 | 
    125,163
 | 
 
 | 
| 
 
    Net noncurrent deferred asset(1)
 
 | 
 
 | 
 
 | 
    33,694
 | 
 
 | 
 
 | 
 
 | 
    37,559
 | 
 
 | 
| 
 
    Net current deferred liability(2)
 
 | 
 
 | 
 
 | 
    (1,027
 | 
    )
 | 
 
 | 
 
 | 
    (8,793
 | 
    )
 | 
| 
 
    Net noncurrent deferred liability
 
 | 
 
 | 
 
 | 
    (770,246
 | 
    )
 | 
 
 | 
 
 | 
    (673,427
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net deferred asset (liability)
 
 | 
 
 | 
    $
 | 
    (706,069
 | 
    )
 | 
 
 | 
    $
 | 
    (519,498
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 
     | 
     | 
     | 
    | 
    (1)  | 
     | 
    
    This amount is included in other long-term assets. | 
|   | 
    | 
    (2)  | 
     | 
    
    This amount is included in accrued liabilities. | 
 
    For U.S. federal income tax purposes, we have net operating
    loss (NOL) carryforwards of approximately
    $759.3 million that, if not utilized, will expire between
    2018 and 2030. The NOL carryforwards for alternative minimum tax
    purposes are approximately $413 million. Additionally, we
    have NOL carryforwards in other jurisdictions of approximately
    $5.4 billion of which $343 million that, if not
    utilized, will expire at various times from 2011 to 2030. We
    provide a valuation allowance against NOL carryforwards in
    various tax jurisdictions based on our consideration of existing
    temporary differences and expected future earning levels in
    those jurisdictions. We have recorded a deferred tax asset of
    approximately $1.46 billion as of December 31, 2010
    relating to NOL carryforwards that have an indefinite life in
    several
    non-U.S. jurisdictions.
    A valuation allowance of approximately $1.46 billion has
    been recognized because we believe it is more likely than not
    that substantially all of the deferred tax asset will not be
    realized.
    103
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    The NOL carryforwards by year of expiration:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
    Year Ended December 31,
 | 
 
 | 
    Total
 | 
 
 | 
 
 | 
    U.S. Federal
 | 
 
 | 
 
 | 
    Non-U.S.
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    2011
 
 | 
 
 | 
    $
 | 
    1,351
 | 
 
 | 
 
 | 
    $
 | 
 
 | 
 
 | 
 
 | 
    $
 | 
    1,351
 | 
 
 | 
| 
 
    2012
 
 | 
 
 | 
 
 | 
    8,756
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    8,756
 | 
 
 | 
| 
 
    2013
 
 | 
 
 | 
 
 | 
    25,958
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    25,958
 | 
 
 | 
| 
 
    2014
 
 | 
 
 | 
 
 | 
    6,019
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    6,019
 | 
 
 | 
| 
 
    2015
 
 | 
 
 | 
 
 | 
    15,665
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    15,665
 | 
 
 | 
| 
 
    2016
 
 | 
 
 | 
 
 | 
    23,375
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    23,375
 | 
 
 | 
| 
 
    2017
 
 | 
 
 | 
 
 | 
    23,714
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    23,714
 | 
 
 | 
| 
 
    2018
 
 | 
 
 | 
 
 | 
    63,796
 | 
 
 | 
 
 | 
 
 | 
    33,111
 | 
 
 | 
 
 | 
 
 | 
    30,685
 | 
 
 | 
| 
 
    2019
 
 | 
 
 | 
 
 | 
    40,427
 | 
 
 | 
 
 | 
 
 | 
    17,722
 | 
 
 | 
 
 | 
 
 | 
    22,705
 | 
 
 | 
| 
 
    2020
 
 | 
 
 | 
 
 | 
    30,944
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    30,944
 | 
 
 | 
| 
 
    2026
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    2027
 
 | 
 
 | 
 
 | 
    8,663
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    8,663
 | 
 
 | 
| 
 
    2028
 
 | 
 
 | 
 
 | 
    31,385
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    31,385
 | 
 
 | 
| 
 
    2029
 
 | 
 
 | 
 
 | 
    193,487
 | 
 
 | 
 
 | 
 
 | 
    139,347
 | 
 
 | 
 
 | 
 
 | 
    54,140
 | 
 
 | 
| 
 
    2030
 
 | 
 
 | 
 
 | 
    629,243
 | 
 
 | 
 
 | 
 
 | 
    569,127
 | 
 
 | 
 
 | 
 
 | 
    60,116
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Subtotal: expiring NOLs
 
 | 
 
 | 
 
 | 
    1,102,783
 | 
 
 | 
 
 | 
 
 | 
    759,307
 | 
 
 | 
 
 | 
 
 | 
    343,476
 | 
 
 | 
| 
 
    Non-expiring NOLs
 
 | 
 
 | 
 
 | 
    5,071,148
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    5,071,148
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total
 
 | 
 
 | 
    $
 | 
    6,173,931
 | 
 
 | 
 
 | 
    $
 | 
    759,307
 | 
 
 | 
 
 | 
    $
 | 
    5,414,624
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
    In addition, for state income tax purposes, we have net
    operating loss carryforwards of approximately $511 million
    that, if not utilized, will expire at various times from 2011 to
    2030.
 
    Under U.S. federal tax law, the amount and availability of
    loss carryforwards (and certain other tax attributes) are
    subject to a variety of interpretations and restrictive tests
    applicable to Nabors and our subsidiaries. The utilization of
    these carryforwards could be limited or effectively lost upon
    certain changes in our shareholder base. Accordingly, although
    we believe substantial loss carryforwards are available to us,
    no assurance can be given concerning these loss carryforwards,
    or whether or not they will be available in the future.
 
    Various bills have been introduced in Congress that could reduce
    or eliminate the tax benefits associated with our reorganization
    as a Bermuda company. Legislation enacted by Congress in 2004
    provides that a corporation that reorganized in a foreign
    jurisdiction on or after March 4, 2003 be treated as a
    domestic corporation for United States federal income tax
    purposes. Nabors reorganization was completed
    June 24, 2002. There has been and we expect that there may
    continue to be legislation proposed in Congress from time to
    time which, if enacted, could limit or eliminate the tax
    benefits associated with our reorganization.
 
    Because we cannot predict whether legislation will ultimately be
    adopted, no assurance can be given that the tax benefits
    associated with our reorganization will ultimately accrue to the
    benefit of the Company and its shareholders. It is possible that
    future changes to tax laws (including tax treaties) could impact
    our ability to realize the tax savings recorded to date as well
    as future tax savings resulting from our reorganization.
    
    104
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
 
    Our authorized share capital consists of 800 million common
    shares, par value $.001 per share, and 25 million preferred
    shares, par value $.001 per share. Common shares issued were
    315,034,436 and 313,915,220 at $.001 par value as of
    December 31, 2010 and 2009, respectively.
 
    For the year ended December 31, 2008, we repurchased
    8.5 million of our common shares in the open market for
    $281.1 million, all of which are held in treasury. No
    shares were purchased in the open market during 2009 or 2010.
    From time to time, treasury shares may be reissued. When shares
    are reissued, we use the weighted-average-cost method for
    determining cost. The difference between the cost of the shares
    and the issuance price is added to or deducted from our capital
    in excess of par value account.
 
    During 2008 we entered into a three-month written put option for
    1 million of our common shares with a strike price of $25
    per common share. We settled this contract during the fourth
    quarter of 2008 and paid cash of $22.6 million, net of the
    premium, and recognized a loss of $9.9 million which is
    included in losses (gains) on sales and retirements of
    long-lived assets and other expense (income), net in our
    consolidated statements of income (loss).
 
    During 2010 and 2009 our outstanding shares increased by 110,805
    and 218,835, respectively, pursuant to a share settlement of
    stock options exercised by Mr. Petrello. As part of these
    transactions, Mr. Petrello surrendered unexercised vested
    stock options to the Company with a value of approximately
    $24.5 million and $5.6 million, respectively, to
    satisfy the option exercise price and related income taxes for
    2010 and 2009. During 2010 our outstanding shares also increased
    by 22,385, pursuant to a similar share settlement of stock
    options exercised by Mr. Isenberg. As part of these
    transactions, Mr. Isenberg surrendered unexercised vested
    stock options to the Company with a value of approximately
    $50.1 million to satisfy the option exercise price and
    related income taxes for 2010.
 
    For the years ended December 31, 2010, 2009 and 2008 the
    Compensation Committee of our Board of Directors granted
    restricted stock awards to some of our executive officers, other
    key employees, and independent directors. We awarded 538,496,
    85,000 and 4,982,536 restricted shares at an average market
    price of $22.15, $11.55 and $20.68 to these individuals for
    2010, 2009 and 2008, respectively. See Note 6 
    Share-Based Compensation for a summary of our restricted stock
    and option awards as of December 31, 2010.
 
    For the years ended December 31, 2010, 2009 and 2008 our
    employees exercised vested options to acquire .7 million,
    1.5 million and 2.5 million of our common shares,
    respectively, resulting in proceeds of $8.2 million,
    $11.2 million and $56.6 million, respectively.
 
     | 
     | 
    | 
    Note 14  
 | 
    
    Subsidiary
    Preferred Stock
 | 
 
    Superior had 75,000 shares of Series A Preferred Stock
    (preferred stock), $0.01 par value per share,
    which remained outstanding at December 31, 2010. There are
    10,000,000 shares authorized. The preferred stock is
    issuable in series with such voting rights, if any,
    designations, powers, preferences and other rights and such
    qualifications, limitations and restrictions as may be
    determined by Superiors board; the board may also fix the
    number of shares constituting each series and increase or
    decrease the number of shares of any series.
 
    The preferred stock is perpetual and ranks senior to
    Superiors common stock with respect to payment of
    dividends, and amounts upon liquidation, dissolution or winding
    up.
 
    We have presented the preferred stock within the mezzanine
    section of our consolidated balance sheets and have accounted
    for the preferred stock under the ASC Topic for Distinguishing
    Liabilities from Equity.
    
    105
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    Dividends
 
    Holders of the preferred stock are entitled to receive, when and
    if declared by Superiors board, out of assets legally
    available therefor, cumulative cash dividends at the rate per
    annum of $40.00 per share of preferred stock. Dividends on the
    preferred stock are payable quarterly in arrears on
    December 1, March 1, June 1 and September 1 of each
    year (and, in the case of any undeclared and unpaid dividends,
    at such additional times and for such interim periods, if any,
    as determined by Superiors board), at such annual rate.
    Dividends are cumulative from the date of the original issuance
    of the preferred stock, whether or not in any dividend period or
    periods we have assets legally available for the payment of such
    dividends.
 
    As of December 31, 2010, dividends on outstanding shares of
    preferred stock had been declared and paid in full with respect
    to each quarter since its initial issuance.
 
    Liquidation
    Preference
 
    Holders of preferred stock are entitled to receive, in the event
    that Superior is liquidated, dissolved or wound up, whether
    voluntarily or involuntarily, $1,000 per share (the
    Liquidation Value) plus an amount per share equal to
    all dividends undeclared and unpaid thereon to the date of final
    distribution (the Liquidation Preference), and no
    more. Until the holders of preferred stock have been paid the
    Liquidation Preference in full, Superior may not make any
    payment to any holder of stock that ranks junior to the
    preferred stock upon liquidation, dissolution or winding up. As
    of December 31, 2010, the preferred stock had a total
    Liquidation Preference of $75.0 million.
 
    Redemption
 
    The preferred stock is redeemable, in whole or in part and at
    Superiors option, at any time on or after
    November 18, 2013, for a redemption price of 101% of the
    Liquidation Value, plus all accrued dividends. The redemption
    price is payable in cash.
 
    As a result of the Superior Merger, each share of preferred
    stock is convertible, at the option of the holder thereof, into
    $22.12 for each share of Superior common stock into which the
    preferred share would have been convertible prior to the
    Superior Merger (a deemed common share). The
    preferred shares had a conversion price of $25.00 per deemed
    common share prior to the Superior Merger (equivalent to a
    conversion rate of 40 deemed common shares for each share of
    preferred stock), representing 3,000,000 deemed common shares.
    This results in a redemption value of $66.4 million at
    December 31, 2010, payable in cash. The right to convert
    shares of preferred stock that may be called for redemption will
    terminate at the close of business on the day preceding a
    redemption date.
 
    Voting
    Rights
 
    Except as otherwise required from time to time by applicable law
    or upon certain events of default, the holders of preferred
    stock have no voting rights, and their consent is not required
    for taking any corporate action. When and if the holders of the
    preferred stock are entitled to vote, each holder will be
    entitled to one vote per share.
 
     | 
     | 
    | 
    Note 15  
 | 
    
    Pension,
    Postretirement and Postemployment Benefits
 | 
 
    Pension
    Plans
 
    In conjunction with our acquisition of Pool Energy Services Co.
    (Pool) in November 1999, we acquired the assets and
    liabilities of a defined benefit pension plan, the Pool Company
    Retirement Income Plan (the Pool Pension Plan).
    Benefits under the Pool Pension Plan are frozen and participants
    were fully vested in their accrued retirement benefit on
    December 31, 1998.
    
    106
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    Summarized information on the Pool Pension Plan is as follows:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Pension Benefits
 | 
 
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Change in benefit obligation:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Benefit obligation at beginning of year
 
 | 
 
 | 
    $
 | 
    18,865
 | 
 
 | 
 
 | 
    $
 | 
    17,781
 | 
 
 | 
| 
 
    Interest cost
 
 | 
 
 | 
 
 | 
    1,116
 | 
 
 | 
 
 | 
 
 | 
    1,093
 | 
 
 | 
| 
 
    Actuarial loss (gain)
 
 | 
 
 | 
 
 | 
    1,289
 | 
 
 | 
 
 | 
 
 | 
    590
 | 
 
 | 
| 
 
    Benefit payments
 
 | 
 
 | 
 
 | 
    (642
 | 
    )
 | 
 
 | 
 
 | 
    (599
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Benefit obligation at end of year(1)
 
 | 
 
 | 
    $
 | 
    20,628
 | 
 
 | 
 
 | 
    $
 | 
    18,865
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Change in plan assets:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Fair value of plan assets at beginning of year
 
 | 
 
 | 
    $
 | 
    14,058
 | 
 
 | 
 
 | 
    $
 | 
    12,113
 | 
 
 | 
| 
 
    Actual (loss) return on plan assets
 
 | 
 
 | 
 
 | 
    1,364
 | 
 
 | 
 
 | 
 
 | 
    1,902
 | 
 
 | 
| 
 
    Employer contribution
 
 | 
 
 | 
 
 | 
    439
 | 
 
 | 
 
 | 
 
 | 
    642
 | 
 
 | 
| 
 
    Benefit payments
 
 | 
 
 | 
 
 | 
    (642
 | 
    )
 | 
 
 | 
 
 | 
    (599
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Fair value of plan assets at end of year
 
 | 
 
 | 
    $
 | 
    15,219
 | 
 
 | 
 
 | 
    $
 | 
    14,058
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Funded status:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Underfunded status at end of year
 
 | 
 
 | 
    $
 | 
    (5,409
 | 
    )
 | 
 
 | 
    $
 | 
    (4,807
 | 
    )
 | 
| 
 
    Amounts recognized in consolidated balance sheets:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Other long-term liabilities
 
 | 
 
 | 
    $
 | 
    (5,409
 | 
    )
 | 
 
 | 
    $
 | 
    (4,807
 | 
    )
 | 
| 
 
    Components of net periodic benefit cost (recognized in our
    consolidated statements of income):
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Interest cost
 
 | 
 
 | 
    $
 | 
    1,116
 | 
 
 | 
 
 | 
    $
 | 
    1,093
 | 
 
 | 
| 
 
    Expected return on plan assets
 
 | 
 
 | 
 
 | 
    (909
 | 
    )
 | 
 
 | 
 
 | 
    (794
 | 
    )
 | 
| 
 
    Recognized net actuarial loss
 
 | 
 
 | 
 
 | 
    457
 | 
 
 | 
 
 | 
 
 | 
    545
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net periodic benefit cost
 
 | 
 
 | 
    $
 | 
    664
 | 
 
 | 
 
 | 
    $
 | 
    844
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Weighted-average assumptions:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Weighted-average discount rate
 
 | 
 
 | 
 
 | 
    5.50
 | 
    %
 | 
 
 | 
 
 | 
    6.00
 | 
    %
 | 
| 
 
    Expected long-term rate of return on plan assets
 
 | 
 
 | 
 
 | 
    6.50
 | 
    %
 | 
 
 | 
 
 | 
    6.50
 | 
    %
 | 
 
 
     | 
     | 
     | 
    | 
    (1)  | 
     | 
    
    As of December 31, 2010 and 2009, the accumulated benefit
    obligation was the same as the projected benefit obligation. | 
 
    For the years ended December 31, 2010, 2009 and 2008, the
    net actuarial loss amounts included in accumulated other
    comprehensive income (loss) in the consolidated statements of
    changes in equity were approximately $(6.7) million,
    $(6.3) million and $(7.4) million, respectively. There
    were no other components, such as prior service costs or
    transition obligations relating to pension costs recorded within
    accumulated other comprehensive income (loss) during 2010, 2009
    and 2008.
 
    The amount included in accumulated other comprehensive income
    (loss) in the consolidated statements of changes in equity that
    is expected to be recognized as a component of net periodic
    benefit cost during 2011 is approximately $.5 million.
 
    We analyze the historical performance of investments in equity
    and debt securities, together with current market factors such
    as inflation and interest rates to help us make assumptions
    necessary to estimate a long-term rate of return on plan assets.
    Once this estimate is made, we review the portfolio of plan
    assets and make
    
    107
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    adjustments thereto that we believe are necessary to reflect a
    diversified blend of investments in equity and debt securities
    that is capable of achieving the estimated long-term rate of
    return without assuming an unreasonable level of investment risk.
 
    The following table sets forth, by level within the fair value
    hierarchy, the investments in the Pool Pension Plan as of
    December 31, 2010. The investments fair value
    measurement level within the fair value hierarchy is classified
    in its entirety based on the lowest level of input that is
    significant to the measurement.
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Fair Value as of December 31, 2010
 | 
 
 | 
| 
 
 | 
 
 | 
    Level 1
 | 
 
 | 
 
 | 
    Level 2
 | 
 
 | 
 
 | 
    Level 3
 | 
 
 | 
 
 | 
    Total
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Assets: (1)
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Cash
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    361
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    361
 | 
 
 | 
| 
 
    Short-term investments:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Available-for-sale
    equity securities(2)
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    8,491
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    8,491
 | 
 
 | 
| 
 
    Available-for-sale
    debt securities(3)
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    6,368
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    6,368
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total investments
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    14,859
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    14,859
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    15,220
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    15,220
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 
     | 
     | 
     | 
    | 
    (1)  | 
     | 
    
    Includes investments in collective trust funds that are valued
    based on the fair value of the underlying investments using
    quoted prices in active markets or other significant inputs that
    are deemed observable. | 
|   | 
    | 
    (2)  | 
     | 
    
    Includes funds that invest primarily in U.S. common stocks and
    foreign equity securities. | 
|   | 
    | 
    (3)  | 
     | 
    
    Includes funds that invest primarily in investment grade debt. | 
 
    The measurement date used to determine pension measurements for
    the plan is December 31.
 
    Our weighted-average asset allocations as of December 31,
    2010 and 2009, by asset category are as follows:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Pension Benefits
 | 
 
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
|  
 | 
| 
 
    Cash
 
 | 
 
 | 
 
 | 
    2
 | 
    %
 | 
 
 | 
 
 | 
    3
 | 
    %
 | 
| 
 
    Equity securities
 
 | 
 
 | 
 
 | 
    56
 | 
    %
 | 
 
 | 
 
 | 
    55
 | 
    %
 | 
| 
 
    Debt securities
 
 | 
 
 | 
 
 | 
    42
 | 
    %
 | 
 
 | 
 
 | 
    42
 | 
    %
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total
 
 | 
 
 | 
 
 | 
    100
 | 
    %
 | 
 
 | 
 
 | 
    100
 | 
    %
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
    We invest plan assets based on a total return on investment
    approach, pursuant to which the plan assets include a
    diversified blend of investments in equity and debt securities
    toward a goal of maximizing the long-term rate of return without
    assuming an unreasonable level of investment risk. We determine
    the level of risk based on an analysis of plan liabilities, the
    extent to which the value of the plan assets satisfies the plan
    liabilities and our financial condition. Our investment policy
    includes target allocations approximating 55% investment in
    equity securities and 45% investment in debt securities. The
    equity portion of the plan assets represents growth and value
    stocks of small, medium and large companies. We measure and
    monitor the investment risk of the plan assets both on a
    quarterly basis and annually when we assess plan liabilities.
 
    We expect to contribute approximately $1.3 million to the
    Pool Pension Plan in 2011. This is based on the sum of
    (1) the minimum contribution for the 2010 plan year that
    will be made in 2011 and (2) the estimated minimum required
    quarterly contributions for the 2011 plan year. We made
    contributions to the Pool Pension Plan in 2010 and 2009 totaling
    $.1 million and $.6 million, respectively.
    
    108
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    As of December 31, 2010, we expect that benefits to be paid
    in each of the next five years after 2010 and in the aggregate
    for the five years thereafter will be as follows:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    2011
 
 | 
 
 | 
    $
 | 
    715
 | 
 
 | 
| 
 
    2012
 
 | 
 
 | 
 
 | 
    777
 | 
 
 | 
| 
 
    2013
 
 | 
 
 | 
 
 | 
    879
 | 
 
 | 
| 
 
    2014
 
 | 
 
 | 
 
 | 
    1,007
 | 
 
 | 
| 
 
    2015
 
 | 
 
 | 
 
 | 
    1,116
 | 
 
 | 
| 
 
    2016  2020
 
 | 
 
 | 
 
 | 
    6,830
 | 
 
 | 
 
    Some of our employees are covered by defined contribution plans.
    Our contributions to the plans totaled $13.6 million and
    $19.8 million for the years ended December 31, 2010
    and 2009, respectively. Nabors does not provide post-employment
    benefits to its employees.
 
    Post-retirement
    Benefits Other Than Pensions
 
    Prior to the date of our acquisition, Pool provided certain
    post-retirement healthcare and life insurance benefits to
    eligible retirees who had attained specific age and years of
    service requirements. Nabors terminated this plan at the date of
    acquisition (November 24, 1999). A liability of
    approximately $.2 million was recorded in our consolidated
    balance sheets as of each of December 31, 2010 and 2009, to
    cover the estimated costs of beneficiaries covered by the plan
    at the date of acquisition.
 
     | 
     | 
    | 
    Note 16  
 | 
    
    Related-Party
    Transactions
 | 
 
    Nabors and its Chairman and Chief Executive Officer, its Deputy
    Chairman, President and Chief Operating Officer, and certain
    other key employees entered into split-dollar life insurance
    agreements, pursuant to which we pay a portion of the premiums
    under life insurance policies with respect to these individuals
    and, in some instances, members of their families. These
    agreements provide that we are reimbursed for the premium
    payments upon the occurrence of specified events, including the
    death of an insured individual. Any recovery of premiums paid by
    Nabors could be limited to the cash surrender value of the
    policies under certain circumstances. As such, the values of
    these policies are recorded at their respective cash surrender
    values in our consolidated balance sheets. We have made premium
    payments to date totaling $11.7 million related to these
    policies. The cash surrender value of these policies of
    approximately $9.5 million and $9.3 million is
    included in other long-term assets in our consolidated balance
    sheets as of December 31, 2010 and 2009, respectively.
 
    Under the Sarbanes-Oxley Act of 2002, the payment of premiums by
    Nabors under the agreements with our Chairman and Chief
    Executive Officer and with our Deputy Chairman, President and
    Chief Operating Officer could be deemed to be prohibited loans
    by us to these individuals. Consequently, we have paid no
    premiums related to our agreements with these individuals since
    the adoption of the Sarbanes-Oxley Act.
 
    In the ordinary course of business, we enter into various rig
    leases, rig transportation and related oilfield services
    agreements with our unconsolidated affiliates at market prices.
    Revenues from business transactions with these affiliated
    entities totaled $271.6 million, $327.3 million and
    $285.3 million for the years ended December 31, 2010,
    2009 and 2008, respectively. Expenses from business transactions
    with these affiliated entities totaled $3.4 million,
    $9.8 million and $9.6 million for the years ended
    December 31, 2010, 2009 and 2008, respectively.
    Additionally, we had accounts receivable from these affiliated
    entities of $97.8 million and $104.2 million as of
    December 31, 2010 and 2009, respectively. We had accounts
    payable to these affiliated entities of $12.7 million and
    $14.8 million as of December 31, 2010 and 2009,
    respectively, and long-term payables with these affiliated
    entities of $.8 million as of each of December 31,
    2010 and 2009, respectively, which are included in other
    long-term liabilities.
    
    109
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    In addition to the equity investment in our unconsolidated
    U.S. oil and gas joint venture, in April 2010 we purchased
    $20.0 million face value of NFR Energy LLCs
    9.75% senior notes. These notes mature in 2017 with
    interest payable semi-annually on February 15 and
    August 15. During 2010, we recognized $1.4 million in
    interest income from these notes.
 
    We own an interest in Shona Energy Company, LLC
    (Shona), a company of which Mr. Payne, an
    independent member of our Board of Directors, is the Chairman
    and Chief Executive Officer. During the fourth quarter of 2008,
    we purchased 1.8 million common shares of Shona for
    $.9 million. During the first quarter of 2010, we purchased
    shares of Shonas preferred stock and warrants to purchase
    additional common shares for $.9 million. We currently hold
    a minority interest of approximately 10% of the issued and
    outstanding shares of Shona.
 
     | 
     | 
    | 
    Note 17  
 | 
    
    Commitments
    and Contingencies
 | 
 
    Commitments
 
    Leases
 
    Nabors and its subsidiaries occupy various facilities and lease
    certain equipment under various lease agreements.
 
    The minimum rental commitments under capital leases, with lease
    terms in excess of one year subsequent to December 31,
    2010, are as follows:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    2011
 
 | 
 
 | 
    $
 | 
    2,201
 | 
 
 | 
| 
 
    2012
 
 | 
 
 | 
 
 | 
    1,265
 | 
 
 | 
| 
 
    2013
 
 | 
 
 | 
 
 | 
    546
 | 
 
 | 
| 
 
    2014
 
 | 
 
 | 
 
 | 
    224
 | 
 
 | 
| 
 
    2015
 
 | 
 
 | 
 
 | 
    61
 | 
 
 | 
| 
 
    Thereafter
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    $
 | 
    4,297
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
    The minimum rental commitments under non-cancelable operating
    leases, with lease terms in excess of one year subsequent to
    December 31, 2010, are as follows:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    2011
 
 | 
 
 | 
    $
 | 
    25,749
 | 
 
 | 
| 
 
    2012
 
 | 
 
 | 
 
 | 
    18,501
 | 
 
 | 
| 
 
    2013
 
 | 
 
 | 
 
 | 
    14,273
 | 
 
 | 
| 
 
    2014
 
 | 
 
 | 
 
 | 
    10,315
 | 
 
 | 
| 
 
    2015
 
 | 
 
 | 
 
 | 
    4,358
 | 
 
 | 
| 
 
    Thereafter
 
 | 
 
 | 
 
 | 
    932
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    $
 | 
    74,128
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
    The above amounts do not include property taxes, insurance or
    normal maintenance that the lessees are required to pay. Rental
    expense relating to operating leases with terms greater than
    30 days amounted to $26.7 million, $25.5 million
    and $29.4 million for the years ended December 31,
    2010, 2009 and 2008, respectively.
    
    110
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    Employment
    Contracts
 
    We have entered into employment contracts with certain of our
    employees. Our minimum salary and bonus obligations under these
    contracts as of December 31, 2010 are as follows:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    2011
 
 | 
 
 | 
    $
 | 
    11,965
 | 
 
 | 
| 
 
    2012
 
 | 
 
 | 
 
 | 
    11,965
 | 
 
 | 
| 
 
    2013
 
 | 
 
 | 
 
 | 
    4,070
 | 
 
 | 
| 
 
    2014
 
 | 
 
 | 
 
 | 
    319
 | 
 
 | 
| 
 
    2015 and thereafter
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    $
 | 
    28,319
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
    Nabors Chairman and Chief Executive Officer, Eugene M.
    Isenberg, and its Deputy Chairman, President and Chief Operating
    Officer, Anthony G. Petrello, had employment agreements
    (prior employment agreements) in effect through the
    first quarter of 2009. Effective April 1, 2009, the Company
    entered into amended and restated employment agreements
    (new employment agreements) with them which extended
    the terms through March 30, 2013.
 
    For the three months ended March 31, 2009, the prior
    employment agreements provided for annual cash bonuses in an
    amount equal to 6% and 2%, for Messrs. Isenberg and
    Petrello, respectively, of Nabors net cash flow (as
    defined in the respective employment agreements) in excess of
    15% of the average shareholders equity for each fiscal
    year. Mr. Petrellos bonus was subject to a minimum of
    $700,000 per year.
 
    Effective April 1, 2009, the new employment agreements for
    Messrs. Isenberg and Petrello amend and restate the prior
    employment agreements. The new employment agreements provide for
    an extension of the employment term through March 30, 2013,
    with automatic one-year extensions beginning April 1, 2011,
    unless either party gives notice of non-renewal. The base
    salaries for Messrs. Isenberg and Petrello were increased
    to $1.3 million and $1.1 million, respectively.
    Mr. Isenberg has agreed to donate the after-tax proceeds of
    his base salary to an educational fund intended to benefit
    Company employees or other worthy candidates.
 
    On June 29, 2009, the new employment agreements for
    Messrs. Isenberg and Petrello were amended to provide for a
    reduction in the annual rate of base salary payable to each of
    Messrs. Isenberg and Petrello to $1.17 million per
    year and $990,000 per year, respectively, for the period from
    June 29, 2009 to December 27, 2009. On
    December 28, 2009, the agreements were further amended to
    extend through June 27, 2010 the previously agreed salary
    reduction.
 
    In addition to a base salary, the new employment agreements
    provide for annual cash bonuses in an amount equal to 2.25% and
    1.5%, for Messrs. Isenberg and Petrello, respectively, of
    Nabors net cash flow (as defined in the respective
    employment agreements) in excess of 15% of the average
    shareholders equity for each fiscal year. For 2010, the
    annual cash bonuses for Messrs. Isenberg and Petrello
    pursuant to the formulas described in their employment
    agreements were $9.7 million and $6.5 million,
    respectively. The new employment agreements also provide a
    quarterly deferred bonus of $.6 million and
    $.25 million, respectively, to the accounts of
    Messrs. Isenberg and Petrello under Nabors executive
    deferred compensation plan for each quarter they are employed
    beginning June 30, 2009 and, in Mr. Petrellos
    case, ending March 30, 2019.
 
    Messrs. Isenberg and Petrello also are eligible for awards
    under Nabors equity plans, may participate in annual
    long-term incentive programs and pension and welfare plans on
    the same basis as other executives, and may receive special
    bonuses from time to time as determined by the Board of
    Directors. The new employment agreements effectively eliminated
    the risk of forfeiture of outstanding stock awards. Accordingly,
    we recognized compensation expense during the second quarter of
    2009 with respect to all previously granted unvested awards to
    Messrs. Isenberg and Petrello. As of December 31,
    2010, there was no unrecognized
    
    111
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    compensation expense related to restricted stock and stock
    option awards for either Mr. Isenberg or Mr. Petrello.
 
    Termination in the event of death, disability, or
    termination without cause (including in the event of a Change in
    Control).  The new employment agreements
    provide for severance payments in the event that either
    Mr. Isenbergs or Mr. Petrellos employment
    agreement is terminated (i) upon death or disability,
    (ii) by Nabors prior to the expiration date of the
    employment agreement for any reason other than for Cause (as
    defined in the respective employment agreements), or
    (iii) by either individual for Constructive Termination
    Without Cause, each as defined in the respective employment
    agreements. Termination in the event of a Change in Control (as
    defined in the respective employment agreements) is considered a
    Constructive Termination Without Cause. Mr. Isenberg would
    be entitled to receive within 30 days of any such
    triggering event a payment of $100 million.
    Mr. Petrello would be entitled to receive within
    30 days of his death or disability a payment of
    $50 million or in the event of Termination Without Cause or
    Constructive Termination Without Cause, a payment based on a
    formula of three times the average of his base salary and annual
    bonus (calculated as though the bonus formula under the new
    employment agreement had been in effect) paid during the three
    fiscal years preceding the termination. If, by way of example,
    Mr. Petrello were Terminated Without Cause subsequent to
    December 31, 2010, his payment would be approximately
    $34 million. The formula will be further reduced to two
    times the average stated above effective April 1, 2015.
 
    The Company does not have insurance to cover its obligations in
    the event of death, disability, or termination without cause for
    either Messrs. Isenberg or Petrello and the Company has not
    recorded an expense or accrued a liability relating to these
    potential obligations.
 
    In addition, under the new employment agreements, the affected
    individual would be entitled to receive (a) any unvested
    restricted stock or stock options outstanding, which would
    immediately and fully vest; (b) any amounts earned, accrued
    or owing to the executive but not yet paid (including executive
    benefits, life insurance, disability benefits and reimbursement
    of expenses and perquisites), which would be continued through
    the later of the expiration date or three years after the
    termination date; (c) continued participation in medical,
    dental and life insurance coverage until the executive received
    equivalent benefits or coverage through a subsequent employer or
    until the death of the executive or his spouse, whichever were
    later; and (d) any other or additional benefits in
    accordance with applicable plans and programs of Nabors. The
    vesting of unvested equity awards would not result in the
    recognition of any additional compensation expense, as all
    compensation expense related to Messrs. Isenbergs and
    Petrellos outstanding awards has been recognized as of
    December 31, 2010. In addition, the new employment
    agreements eliminate all tax
    gross-ups,
    including without limitation tax
    gross-ups on
    golden parachute excise taxes, which applied under the prior
    employment agreements. Estimates of the cash value of
    Nabors obligations to Messrs. Isenberg and Petrello
    under (b), (c) and (d) above are included in the
    payment amounts above.
 
    Other Obligations.  In addition
    to salary and bonus, each of Messrs. Isenberg and Petrello
    receive group life insurance at an amount at least equal to
    three times their respective base salaries, various split-dollar
    life insurance policies, reimbursement of expenses, various
    perquisites and a personal umbrella insurance policy in the
    amount of $5 million. Premiums payable under the
    split-dollar life insurance policies were suspended as a result
    of the adoption of the Sarbanes-Oxley Act of 2002.
 
    Contingencies
 
    Income
    Tax Contingencies
 
    We are subject to income taxes in the United States and numerous
    other jurisdictions. Significant judgment is required in
    determining our worldwide provision for income taxes. In the
    ordinary course of our business, there are many transactions and
    calculations where the ultimate tax determination is uncertain.
    We are regularly audited by tax authorities. Although we believe
    our tax estimates are reasonable, the final
    
    112
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    determination of tax audits and any related litigation could be
    materially different than what is reflected in income tax
    provisions and accruals. An audit or litigation could materially
    affect our financial position, income tax provision, net income,
    or cash flows in the period or periods challenged.
 
    It is possible that future changes to tax laws (including tax
    treaties) could impact our ability to realize the tax savings
    recorded to date as well as future tax savings, resulting from
    our 2002 corporate reorganization. See Note 12 
    Income Taxes for additional discussion.
 
    On September 14, 2006, Nabors Drilling International
    Limited, one of our wholly owned Bermuda subsidiaries
    (NDIL), received a Notice of Assessment (the
    Notice) from Mexicos federal tax authorities
    in connection with the audit of NDILs Mexico branch for
    2003. The Notice proposes to deny depreciation expense
    deductions relating to drilling rigs operating in Mexico in
    2003. The Notice also proposes to deny a deduction for payments
    made to an affiliated company for the procurement of labor
    services in Mexico. The amount assessed was approximately
    $19.8 million (including interest and penalties). Nabors
    and its tax advisors previously concluded that the deductions
    were appropriate and more recently that the governments
    position lacks merit. NDILs Mexico branch took similar
    deductions for depreciation and labor expenses from 2004 to
    2008. On June 30, 2009, the government proposed similar
    assessments against the Mexico branch of another wholly owned
    Bermuda subsidiary, Nabors Drilling International II Ltd.
    (NDIL II) for 2006. We anticipate that a similar
    assessment will eventually be proposed against NDIL for 2004
    through 2008 and against NDIL II for 2007 to 2010. We believe
    that the potential assessments will range from $6 million
    to $26 million per year for the period from 2004 to 2009,
    and in the aggregate, would be approximately $90 million to
    $95 million. Although we believe that any assessments
    related to the 2004 to 2010 years lack merit, a reserve has
    been recorded in accordance with GAAP. The statute of
    limitations for NDILs 2004 tax year recently expired.
    Accordingly, during the fourth quarter of 2010, we released
    $7.4 million from our tax reserves, which represented the
    reserve recorded for that tax year. If these additional
    assessments were made and we ultimately did not prevail, we
    would be required to recognize additional tax for the amount in
    excess of the current reserve.
 
    Self-Insurance
 
    We estimate the level of our liability related to insurance and
    record reserves for these amounts in our consolidated financial
    statements. Our estimates are based on the facts and
    circumstances specific to existing claims and our past
    experience with similar claims. These loss estimates and
    accruals recorded in our financial statements for claims have
    historically been reasonable in light of the actual amount of
    claims paid. Although we believe our insurance coverage and
    reserve estimates are reasonable, a significant accident or
    other event that is not fully covered by insurance or
    contractual indemnity could occur and could materially affect
    our financial position and results of operations for a
    particular period.
 
    We self-insure for certain losses relating to workers
    compensation, employers liability, general liability,
    automobile liability and property damage. Some workers
    compensation claims are subject to a minimum $1.0 million
    deductible liability, plus an additional $3.0 million
    corridor deductible. Some employers liability and marine
    employers liability claims are subject to a
    $2.0 million per-occurrence deductible. Some automobile
    liability is subject to a $.5 million per-occurrence
    deductible, plus an additional $1.0 million corridor
    deductible. General liability claims are subject to a
    $5.0 million per-occurrence deductible.
 
    In addition, we are subject to a $5.0 million deductible
    for all land rigs and for offshore rigs. This applies to all
    kinds of risks of physical damage except for named windstorms in
    the U.S. Gulf of Mexico for which we are self-insured.
 
    Political risk insurance is procured for select operations in
    South America, Africa, the Middle East and Asia. Losses are
    subject to a $.25 million deductible, except for Colombia,
    which is subject to a $.5 million deductible. There is no
    assurance that such coverage will adequately protect Nabors
    against liability from all potential consequences.
    
    113
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    As of December 31, 2010 and 2009, our self-insurance
    accruals totaled $145.6 million and $139.0 million,
    respectively, and our related insurance recoveries/receivables
    were $9.0 million and $12.9 million, respectively.
 
    Litigation
 
    Nabors and its subsidiaries are defendants or otherwise involved
    in a number of lawsuits in the ordinary course of business. We
    estimate the range of our liability related to pending
    litigation when we believe the amount and range of loss can be
    estimated. We record our best estimate of a loss when the loss
    is considered probable. When a liability is probable and there
    is a range of estimated loss with no best estimate in the range,
    we record the minimum estimated liability related to the
    lawsuits or claims. As additional information becomes available,
    we assess the potential liability related to our pending
    litigation and claims and revise our estimates. Due to
    uncertainties related to the resolution of lawsuits and claims,
    the ultimate outcome may differ from our estimates. In the
    opinion of management and based on liability accruals provided,
    our ultimate exposure with respect to these pending lawsuits and
    claims is not expected to have a material adverse effect on our
    consolidated financial position or cash flows, although they
    could have a material adverse effect on our results of
    operations for a particular reporting period.
 
    On July 5, 2007, we received an inquiry from the United
    States Department of Justice relating to its investigation of
    one of our vendors and compliance with the Foreign Corrupt
    Practices Act. The inquiry relates to transactions with and
    involving Panalpina, which provided freight forwarding and
    customs clearance services to some of our affiliates. To date,
    the inquiry has focused on transactions in Kazakhstan, Saudi
    Arabia, Algeria and Nigeria. The Audit Committee of our Board of
    Directors has engaged outside counsel to review some of our
    transactions with this vendor, has received periodic updates at
    its regularly scheduled meetings, and the Chairman of the Audit
    Committee has received updates between meetings as circumstances
    warrant. The investigation includes a review of certain amounts
    paid to and by Panalpina in connection with obtaining permits
    for the temporary importation of equipment and clearance of
    goods and materials through customs. Both the SEC and the United
    States Department of Justice have been advised of our
    investigation. The ultimate outcome of this investigation or the
    effect of implementing any further measures that may be
    necessary to ensure full compliance with applicable laws cannot
    be determined at this time.
 
    A court in Algeria entered a judgment of approximately
    $19.7 million against us related to alleged customs
    infractions in 2009. We believe we did not receive proper notice
    of the judicial proceedings, and that the amount of the judgment
    is excessive. We have asserted the lack of legally required
    notice as a basis for challenging the judgment on appeal to the
    Algeria Supreme Court. Based upon our understanding of
    applicable law and precedent, we believe that this challenge
    will be successful. We do not believe that a loss is probable
    and have not accrued any amounts related to this matter.
    However, the ultimate resolution and the timing thereof are
    uncertain. If we are ultimately required to pay a fine or
    judgment related to this matter, the amount of the loss could
    range from approximately $140,000 to $19.7 million.
 
    In August 2010, Nabors and its wholly owned subsidiary, Diamond
    Acquisition Corp. (Diamond) were sued in three
    putative shareholder class actions. Two of the cases were
    dismissed. The remaining case pending, Jordan Denney,
    Individually and on Behalf of All Others Similarly
    Situated v. David E. Wallace, et al., Civil Action
    No. 10-1154,
    is pending in the United States District Court for the Western
    District of Pennsylvania. The suits were brought against
    Superior, the individual members of its board of directors,
    certain of Superiors senior officers, Nabors and Diamond.
    The complaints alleged that Superiors officers and
    directors violated various provisions of the Exchange Act and
    breached their fiduciary duties in connection with the Superior
    Merger, and that Nabors and Diamond aided and abetted these
    violations. The complaints sought injunctive relief, including
    an injunction against the consummation of the Superior Merger,
    monetary damages, and attorneys fees and costs. The claim
    against Superior and its directors is covered by insurance after
    a deductible amount. We anticipate settling the claims in the
    claims in the first or second quarter of 2011, and that any
    settlement will be funded by Superiors insurers to the
    extent it exceeds our deductible.
    
    114
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    Off-Balance
    Sheet Arrangements (Including Guarantees)
 
    We are a party to some transactions, agreements or other
    contractual arrangements defined as off-balance sheet
    arrangements that could have a material future effect on
    our financial position, results of operations, liquidity and
    capital resources. The most significant of these off-balance
    sheet arrangements involve agreements and obligations under
    which we provide financial or performance assurance to third
    parties. Certain of these agreements serve as guarantees,
    including standby letters of credit issued on behalf of
    insurance carriers in conjunction with our workers
    compensation insurance program and other financial surety
    instruments such as bonds. In addition, we have provided
    indemnifications, which serve as guarantees, to some third
    parties. These guarantees include indemnification provided by
    Nabors to our share transfer agent and our insurance carriers.
    We are not able to estimate the potential future maximum
    payments that might be due under our indemnification guarantees.
 
    Management believes the likelihood that we would be required to
    perform or otherwise incur any material losses associated with
    any of these guarantees is remote. The following table
    summarizes the total maximum amount of financial guarantees
    issued by Nabors:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Maximum Amount
 | 
 
 | 
| 
 
 | 
 
 | 
    2011
 | 
 
 | 
 
 | 
    2012
 | 
 
 | 
 
 | 
    2013
 | 
 
 | 
 
 | 
    Thereafter
 | 
 
 | 
 
 | 
    Total
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Financial standby letters of credit and other financial surety
    instruments
 
 | 
 
 | 
    $
 | 
    83,010
 | 
 
 | 
 
 | 
    $
 | 
    525
 | 
 
 | 
 
 | 
    $
 | 
    12,158
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    95,693
 | 
 
 | 
 
     | 
     | 
    | 
    Note 18  
 | 
    
    Earnings
    (Losses) Per Share
 | 
 
    We include unvested restricted stock awards in the calculation
    of basic and diluted earnings per share using the two-class
    method as required by the Earnings Per Share Topic of the ASC.
    
    115
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    A reconciliation of the numerators and denominators of the basic
    and diluted earnings (losses) per share computations is as
    follows:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
 
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
 
 | 
    2008
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands, except per share amounts)
 | 
 
 | 
|  
 | 
| 
 
    Net income (loss) (numerator):
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Income (loss) from continuing operations, net of tax
 
 | 
 
 | 
    $
 | 
    106,110
 | 
 
 | 
 
 | 
    $
 | 
    (28,268
 | 
    )
 | 
 
 | 
    $
 | 
    521,594
 | 
 
 | 
| 
 
    Less: net (income) loss attributable to noncontrolling interest
 
 | 
 
 | 
 
 | 
    (85
 | 
    )
 | 
 
 | 
 
 | 
    342
 | 
 
 | 
 
 | 
 
 | 
    (3,927
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net income (loss) from continuing operations  basic
 
 | 
 
 | 
 
 | 
    106,025
 | 
 
 | 
 
 | 
 
 | 
    (27,926
 | 
    )
 | 
 
 | 
 
 | 
    517,667
 | 
 
 | 
| 
 
    Add interest expense on assumed conversion of our zero coupon
    convertible/exchangeable senior debentures/notes, net of tax:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    0.94% senior exchangeable notes due 2011(1)
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Zero coupon exchangeable notes due 2023(2)
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Adjusted net income (loss) attributable to Nabors 
    diluted
 
 | 
 
 | 
    $
 | 
    106,025
 | 
 
 | 
 
 | 
    $
 | 
    (27,926
 | 
    )
 | 
 
 | 
    $
 | 
    517,667
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Earnings (losses) per share:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Basic from continuing operations
 
 | 
 
 | 
    $
 | 
    .37
 | 
 
 | 
 
 | 
    $
 | 
    (.10
 | 
    )
 | 
 
 | 
    $
 | 
    1.84
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Diluted from continuing operations
 
 | 
 
 | 
    $
 | 
    .37
 | 
 
 | 
 
 | 
    $
 | 
    (.10
 | 
    )
 | 
 
 | 
    $
 | 
    1.80
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Income from discontinued operations, net of tax
 
 | 
 
 | 
    $
 | 
    (11,330
 | 
    )
 | 
 
 | 
    $
 | 
    (57,620
 | 
    )
 | 
 
 | 
    $
 | 
    (41,930
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Earnings (losses) per share, discontinued operations:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Basic from discontinued operations
 
 | 
 
 | 
    $
 | 
    (.04
 | 
    )
 | 
 
 | 
    $
 | 
    (.20
 | 
    )
 | 
 
 | 
    $
 | 
    (.15
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Diluted from discontinued operations
 
 | 
 
 | 
    $
 | 
    (.04
 | 
    )
 | 
 
 | 
    $
 | 
    (.20
 | 
    )
 | 
 
 | 
    $
 | 
    (.15
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Shares (denominator):
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Weighted-average number of shares outstanding 
    basic(3)
 
 | 
 
 | 
 
 | 
    285,145
 | 
 
 | 
 
 | 
 
 | 
    283,326
 | 
 
 | 
 
 | 
 
 | 
    281,622
 | 
 
 | 
| 
 
    Net effect of dilutive stock options, warrants and restricted
    stock awards based on the if-converted method
 
 | 
 
 | 
 
 | 
    4,851
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    5,332
 | 
 
 | 
| 
 
    Assumed conversion of our zero coupon convertible/exchangeable
    senior debentures/notes:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    0.94% senior exchangeable notes due 2011(1)
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Zero coupon exchangeable notes due 2023(2)
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    1,282
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Weighted-average number of shares outstanding  diluted
 
 | 
 
 | 
 
 | 
    289,996
 | 
 
 | 
 
 | 
 
 | 
    283,326
 | 
 
 | 
 
 | 
 
 | 
    288,236
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 
     | 
     | 
     | 
    | 
    (1)  | 
     | 
    
    Diluted earnings (losses) per share for the years ended
    December 31, 2010, 2009 and 2008 exclude any incremental
    shares issuable upon exchange of the 0.94% senior
    exchangeable notes due 2011. As of December 31, 2010, we
    have purchased $1.3 billion par value of these notes in the
    open market, leaving approximately $1.4 billion par value
    outstanding. The number of shares that we would be required to
    issue upon exchange consists of only the incremental shares that
    would be issued above the principal amount of the notes, as we
    are required to pay cash up to the principal amount of the notes
    exchanged. We would issue an incremental number of shares only
    upon exchange of these notes. Such shares are included in the
    calculation of the weighted-average number of shares outstanding
    in our diluted earnings per share calculation only when our
    stock price exceeds $45.83 as of the last trading day of the
    quarter and the average price of our shares for the ten
    consecutive trading days beginning on the third business day
    after the last trading day of the quarter exceeds $45.83, which
    did not occur during any period for the years ended
    December 31, 2010, 2009 and 2008. | 
    
    116
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
 
     | 
     | 
     | 
    | 
    (2)  | 
     | 
    
    In June and July 2008 Nabors Delaware paid cash of
    $171.8 million and $528.2 million, respectively, to
    redeem all of the notes. In addition to the $700 million in
    cash, we issued 5.25 million common shares with a fair
    value of $249.8 million, which equated to the excess of the
    exchange value of the notes over their principal amount. Because
    the conversion was completed during 2008, diluted earnings per
    share for the year ended December 31, 2008 reflect the
    conversion of the zero coupon senior exchangeable notes due 2023
    which included the effect of the 5.25 million shares in the
    calculation of the weighted-average number of basic shares
    outstanding. | 
|   | 
    | 
    (3)  | 
     | 
    
    On July 31, 2009, the exchangeable shares of Nabors
    Exchangeco were exchanged for Nabors common shares on a
    one-for-one
    basis. Basic shares outstanding includes the following
    weighted-average number of common shares and restricted stock of
    Nabors and weighted-average number of exchangeable shares of
    Nabors Exchangeco, respectively: 285.1 million shares
    cumulatively for the year ended December 31, 2010;
    283.2 million and .1 million shares for the year ended
    December 31, 2009; and 281.5 million and
    .1 million shares for the year ended December 31, 2008. | 
 
    For all periods presented, the computation of diluted earnings
    (losses) per Nabors share excludes outstanding stock
    options and warrants with exercise prices greater than the
    average market price of Nabors common shares, because
    their inclusion would be anti-dilutive and because they are not
    considered participating securities. The average number of
    options and warrants that were excluded from diluted earnings
    (losses) per share that would potentially dilute earnings per
    share in the future was 14,004,749, 34,113,887 and
    7,416,865 shares during the years ended December 31,
    2010, 2009 and 2008, respectively. In any period during which
    the average market price of Nabors common shares exceeds
    the exercise prices of these stock options and warrants, such
    stock options and warrants will be included in our diluted
    earnings (losses) per share computation using the if-converted
    method of accounting. Restricted stock will be included in our
    basic and diluted earnings (losses) per share computation using
    the two-class method of accounting in all periods because such
    stock is considered participating securities.
 
     | 
     | 
    | 
    Note 19  
 | 
    
    Supplemental
    Balance Sheet, Income Statement and Cash Flow
    Information
 | 
 
    At December 31, 2010, other long-term assets included a
    deposit of $40 million of restricted funds held at a
    financial institution to assure future credit availability for
    an unconsolidated affiliate. This cash is excluded from cash and
    cash equivalents in the Consolidated Balance Sheets and
    Statements of Cash Flows.
 
    Accrued liabilities include the following:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    December 31, 
    
 | 
 
 | 
 
 | 
    December 31, 
    
 | 
 
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Accrued compensation
 
 | 
 
 | 
    $
 | 
    116,680
 | 
 
 | 
 
 | 
    $
 | 
    79,195
 | 
 
 | 
| 
 
    Deferred revenue
 
 | 
 
 | 
 
 | 
    88,389
 | 
 
 | 
 
 | 
 
 | 
    57,563
 | 
 
 | 
| 
 
    Other taxes payable
 
 | 
 
 | 
 
 | 
    25,227
 | 
 
 | 
 
 | 
 
 | 
    33,126
 | 
 
 | 
| 
 
    Workers compensation liabilities
 
 | 
 
 | 
 
 | 
    31,944
 | 
 
 | 
 
 | 
 
 | 
    31,944
 | 
 
 | 
| 
 
    Interest payable
 
 | 
 
 | 
 
 | 
    89,276
 | 
 
 | 
 
 | 
 
 | 
    78,607
 | 
 
 | 
| 
 
    Due to joint venture partners
 
 | 
 
 | 
 
 | 
    6,030
 | 
 
 | 
 
 | 
 
 | 
    25,641
 | 
 
 | 
| 
 
    Warranty accrual
 
 | 
 
 | 
 
 | 
    3,376
 | 
 
 | 
 
 | 
 
 | 
    6,970
 | 
 
 | 
| 
 
    Litigation reserves
 
 | 
 
 | 
 
 | 
    12,301
 | 
 
 | 
 
 | 
 
 | 
    11,951
 | 
 
 | 
| 
 
    Professional fees
 
 | 
 
 | 
 
 | 
    3,222
 | 
 
 | 
 
 | 
 
 | 
    3,390
 | 
 
 | 
| 
 
    Current deferred tax liability
 
 | 
 
 | 
 
 | 
    1,027
 | 
 
 | 
 
 | 
 
 | 
    8,793
 | 
 
 | 
| 
 
    Other accrued liabilities
 
 | 
 
 | 
 
 | 
    16,820
 | 
 
 | 
 
 | 
 
 | 
    9,157
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    $
 | 
    394,292
 | 
 
 | 
 
 | 
    $
 | 
    346,337
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    
    117
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    Investment income (loss) includes the following:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
 
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
 
 | 
    2008
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Interest and dividend income
 
 | 
 
 | 
    $
 | 
    7,162
 | 
 
 | 
 
 | 
    $
 | 
    15,777
 | 
 
 | 
 
 | 
    $
 | 
    40,148
 | 
 
 | 
| 
 
    Gains (losses) on marketable and non-marketable securities, net
 
 | 
 
 | 
 
 | 
    486
 | 
    (1)
 | 
 
 | 
 
 | 
    9,822
 | 
    (2)
 | 
 
 | 
 
 | 
    (18,736
 | 
    )(3)
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    $
 | 
    7,648
 | 
 
 | 
 
 | 
    $
 | 
    25,599
 | 
 
 | 
 
 | 
    $
 | 
    21,412
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 
     | 
     | 
     | 
    | 
    (1)  | 
     | 
    
    Reflects gain on sale of debt securities and gains from our
    long-term investments of $4.9 million, partially offset by
    net unrealized losses of $4.4 million from our trading
    securities. | 
|   | 
    | 
    (2)  | 
     | 
    
    Reflects net unrealized gains of $9.8 million from our
    trading securities. | 
|   | 
    | 
    (3)  | 
     | 
    
    Reflects net unrealized gains of $8.5 million from our
    trading securities, offset by losses of $27.4 million from
    our actively managed funds classified as long-term investments. | 
 
    Losses (gains) on sales and retirements of long-lived assets and
    other expense (income), net includes the following:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
 
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
 
 | 
    2008
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Losses (gains) on sales, retirements and involuntary conversions
    of long-lived assets
 
 | 
 
 | 
    $
 | 
    6,623
 | 
 
 | 
 
 | 
    $
 | 
    5,525
 | 
 
 | 
 
 | 
    $
 | 
    14,013
 | 
    (1)
 | 
| 
 
    Acquisition-related costs
 
 | 
 
 | 
 
 | 
    7,021
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Litigation expenses
 
 | 
 
 | 
 
 | 
    6,356
 | 
 
 | 
 
 | 
 
 | 
    11,474
 | 
 
 | 
 
 | 
 
 | 
    3,492
 | 
 
 | 
| 
 
    Foreign currency transaction losses (gains)
 
 | 
 
 | 
 
 | 
    17,878
 | 
 
 | 
 
 | 
 
 | 
    8,372
 | 
 
 | 
 
 | 
 
 | 
    (2,718
 | 
    )
 | 
| 
 
    Losses (gains) on derivative instruments
 
 | 
 
 | 
 
 | 
    119
 | 
 
 | 
 
 | 
 
 | 
    (1,399
 | 
    )
 | 
 
 | 
 
 | 
    14,581
 | 
    (2)
 | 
| 
 
    Losses (gains) on debt extinguishment(3)
 
 | 
 
 | 
 
 | 
    7,042
 | 
 
 | 
 
 | 
 
 | 
    (11,197
 | 
    )
 | 
 
 | 
 
 | 
    (12,248
 | 
    )
 | 
| 
 
    Other losses (gains)
 
 | 
 
 | 
 
 | 
    2,021
 | 
 
 | 
 
 | 
 
 | 
    (216
 | 
    )
 | 
 
 | 
 
 | 
    (1,291
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    $
 | 
    47,060
 | 
 
 | 
 
 | 
    $
 | 
    12,559
 | 
 
 | 
 
 | 
    $
 | 
    15,829
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 
     | 
     | 
     | 
    | 
    (1)  | 
     | 
    
    Includes involuntary conversion losses recorded as a result of
    Hurricanes Gustav and Ike during 2008 of approximately
    $12.0 million, net of insurance recoveries. | 
|   | 
    | 
    (2)  | 
     | 
    
    Includes a $9.9 million loss on a three-month written put
    option and a $4.7 million loss on the fair value of our
    range-cap-and-floor derivative. | 
|   | 
    | 
    (3)  | 
     | 
    
    Includes $(7.0) million, $11.5 million and
    $12.2 million pre-tax (losses) gains on our purchases of
    our 0.94% senior exchangeable notes in the open market
    during 2010, 2009 and 2008, respectively. | 
    
    118
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
 
    Supplemental cash flow information for the years ended
    December 31, 2010, 2009 and 2008 is as follows:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
 
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
 
 | 
    2008
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Cash paid for income taxes
 
 | 
 
 | 
    $
 | 
    58,574
 | 
 
 | 
 
 | 
    $
 | 
    107,994
 | 
 
 | 
 
 | 
    $
 | 
    235,907
 | 
 
 | 
| 
 
    Cash paid for interest, net of capitalized interest
 
 | 
 
 | 
 
 | 
    180,731
 | 
 
 | 
 
 | 
 
 | 
    126,796
 | 
 
 | 
 
 | 
 
 | 
    67,327
 | 
 
 | 
| 
 
    Acquisitions of businesses:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Fair value of assets acquired
 
 | 
 
 | 
 
 | 
    796,399
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    7,328
 | 
 
 | 
| 
 
    Goodwill
 
 | 
 
 | 
 
 | 
    339,992
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    284
 | 
 
 | 
| 
 
    Liabilities assumed
 
 | 
 
 | 
 
 | 
    (332,528
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (6,352
 | 
    )
 | 
| 
 
    Common stock of acquired company previously owned
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Subsidiary preferred stock obligation
 
 | 
 
 | 
 
 | 
    (69,188
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Cash paid for acquisitions of businesses
 
 | 
 
 | 
 
 | 
    734,675
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    1,260
 | 
 
 | 
| 
 
    Cash acquired in acquisitions of businesses
 
 | 
 
 | 
 
 | 
    (1,045
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (973
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Cash paid for acquisitions of businesses, net
 
 | 
 
 | 
    $
 | 
    733,630
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    287
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
     | 
     | 
    | 
    Note 20  
 | 
    
    Unaudited
    Quarterly Financial Information
 | 
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31, 2010
 | 
 
 | 
| 
 
 | 
 
 | 
    Quarter Ended
 | 
 
 | 
| 
 
 | 
 
 | 
    March 31,
 | 
 
 | 
 
 | 
    June 30,
 | 
 
 | 
 
 | 
    September 30,
 | 
 
 | 
 
 | 
    December 31,
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands, except per share amounts)
 | 
 
 | 
|  
 | 
| 
 
    Operating revenues and Earnings (losses) from unconsolidated
    affiliates from continuing operations(1)
 
 | 
 
 | 
    $
 | 
    898,988
 | 
 
 | 
 
 | 
    $
 | 
    904,874
 | 
 
 | 
 
 | 
    $
 | 
    1,081,103
 | 
 
 | 
 
 | 
    $
 | 
    1,322,927
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Income (loss) from continuing operations, net of tax
 
 | 
 
 | 
    $
 | 
    43,519
 | 
 
 | 
 
 | 
    $
 | 
    43,971
 | 
 
 | 
 
 | 
    $
 | 
    (31,563
 | 
    )
 | 
 
 | 
    $
 | 
    50,183
 | 
 
 | 
| 
 
    Income from discontinued operations, net of tax
 
 | 
 
 | 
 
 | 
    (4,421
 | 
    )
 | 
 
 | 
 
 | 
    (909
 | 
    )
 | 
 
 | 
 
 | 
    (7,591
 | 
    )
 | 
 
 | 
 
 | 
    1,591
 | 
 
 | 
| 
 
    Less: Net (income) loss attributable to noncontrolling interest
 
 | 
 
 | 
 
 | 
    1,102
 | 
 
 | 
 
 | 
 
 | 
    559
 | 
 
 | 
 
 | 
 
 | 
    (453
 | 
    )
 | 
 
 | 
 
 | 
    (1,293
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net income (loss) attributable to Nabors
 
 | 
 
 | 
    $
 | 
    40,200
 | 
 
 | 
 
 | 
    $
 | 
    43,621
 | 
 
 | 
 
 | 
    $
 | 
    (39,607
 | 
    )
 | 
 
 | 
    $
 | 
    50,481
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Earnings (loss) per share:(2)
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Basic from continuing operations
 
 | 
 
 | 
    $
 | 
    .16
 | 
 
 | 
 
 | 
    $
 | 
    .15
 | 
 
 | 
 
 | 
    $
 | 
    (.11
 | 
    )
 | 
 
 | 
    $
 | 
    .18
 | 
 
 | 
| 
 
    Basic from discontinued operations
 
 | 
 
 | 
 
 | 
    (.02
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (.03
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total Basic
 
 | 
 
 | 
    $
 | 
    .14
 | 
 
 | 
 
 | 
    $
 | 
    .15
 | 
 
 | 
 
 | 
    $
 | 
    (.14
 | 
    )
 | 
 
 | 
    $
 | 
    .18
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Diluted from continuing operations
 
 | 
 
 | 
    $
 | 
    .16
 | 
 
 | 
 
 | 
    $
 | 
    .15
 | 
 
 | 
 
 | 
    $
 | 
    (.11
 | 
    )
 | 
 
 | 
    $
 | 
    .17
 | 
 
 | 
| 
 
    Diluted from discontinued operations
 
 | 
 
 | 
 
 | 
    (.02
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (.03
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total Diluted
 
 | 
 
 | 
    $
 | 
    .14
 | 
 
 | 
 
 | 
    $
 | 
    .15
 | 
 
 | 
 
 | 
    $
 | 
    (.14
 | 
    )
 | 
 
 | 
    $
 | 
    .17
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
    
    119
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31, 2009
 | 
 
 | 
| 
 
 | 
 
 | 
    Quarter Ended
 | 
 
 | 
| 
 
 | 
 
 | 
    March 31,
 | 
 
 | 
 
 | 
    June 30,
 | 
 
 | 
 
 | 
    September 30,
 | 
 
 | 
 
 | 
    December 31,
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands, except per share amounts)
 | 
 
 | 
|  
 | 
| 
 
    Operating revenues and Earnings (losses) from unconsolidated
    affiliates from continuing operations(3)
 
 | 
 
 | 
    $
 | 
    1,132,406
 | 
 
 | 
 
 | 
    $
 | 
    862,103
 | 
 
 | 
 
 | 
    $
 | 
    806,303
 | 
 
 | 
 
 | 
    $
 | 
    727,174
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Income (loss) from continuing operations, net of tax
 
 | 
 
 | 
    $
 | 
    124,083
 | 
 
 | 
 
 | 
    $
 | 
    (184,565
 | 
    )
 | 
 
 | 
    $
 | 
    53,675
 | 
 
 | 
 
 | 
    $
 | 
    (21,461
 | 
    )
 | 
| 
 
    Income from discontinued operations, net of tax
 
 | 
 
 | 
 
 | 
    36
 | 
 
 | 
 
 | 
 
 | 
    (8,641
 | 
    )
 | 
 
 | 
 
 | 
    (23,250
 | 
    )
 | 
 
 | 
 
 | 
    (25,765
 | 
    )
 | 
| 
 
    Less: Net (income) loss attributable to noncontrolling interest
 
 | 
 
 | 
 
 | 
    1,051
 | 
 
 | 
 
 | 
 
 | 
    220
 | 
 
 | 
 
 | 
 
 | 
    (895
 | 
    )
 | 
 
 | 
 
 | 
    (34
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net income (loss) attributable to Nabors
 
 | 
 
 | 
    $
 | 
    125,170
 | 
 
 | 
 
 | 
    $
 | 
    (192,986
 | 
    )
 | 
 
 | 
    $
 | 
    29,530
 | 
 
 | 
 
 | 
    $
 | 
    (47,260
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Earnings per share:(2)
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Basic from continuing operations
 
 | 
 
 | 
    $
 | 
    .44
 | 
 
 | 
 
 | 
    $
 | 
    (.65
 | 
    )
 | 
 
 | 
    $
 | 
    .18
 | 
 
 | 
 
 | 
    $
 | 
    (.08
 | 
    )
 | 
| 
 
    Basic from discontinued operations
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (.03
 | 
    )
 | 
 
 | 
 
 | 
    (.08
 | 
    )
 | 
 
 | 
 
 | 
    (.09
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total Basic
 
 | 
 
 | 
    $
 | 
    .44
 | 
 
 | 
 
 | 
    $
 | 
    (.68
 | 
    )
 | 
 
 | 
    $
 | 
    .10
 | 
 
 | 
 
 | 
    $
 | 
    (.17
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Diluted from continuing operations
 
 | 
 
 | 
    $
 | 
    .44
 | 
 
 | 
 
 | 
    $
 | 
    (.65
 | 
    )
 | 
 
 | 
    $
 | 
    .18
 | 
 
 | 
 
 | 
    $
 | 
    (.08
 | 
    )
 | 
| 
 
    Diluted from discontinued operations
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (.03
 | 
    )
 | 
 
 | 
 
 | 
    (.08
 | 
    )
 | 
 
 | 
 
 | 
    (.09
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total Diluted
 
 | 
 
 | 
    $
 | 
    .44
 | 
 
 | 
 
 | 
    $
 | 
    (.68
 | 
    )
 | 
 
 | 
    $
 | 
    .10
 | 
 
 | 
 
 | 
    $
 | 
    (.17
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 
     | 
     | 
     | 
    | 
    (1)  | 
     | 
    
    Includes earnings (losses) from unconsolidated affiliates, net,
    accounted for by the equity method, of $7.6 million,
    $8.8 million, $11.8 million and $4.9 million,
    respectively. | 
|   | 
    | 
    (2)  | 
     | 
    
    Earnings per share is computed independently for each of the
    quarters presented. Therefore, the sum of the quarterly earnings
    per share may not equal the total computed for the year. | 
|   | 
    | 
    (3)  | 
     | 
    
    Includes earnings (losses) from unconsolidated affiliates, net,
    accounted for by the equity method, of $(64.5) million,
    $(5.7) million, $17.1 million and
    $(102.3) million, respectively. | 
 
     | 
     | 
    | 
    Note 21  
 | 
    
    Discontinued
    Operations
 | 
 
    During 2010, we began actively marketing our oil and gas assets
    in the Horn River basin in Canada and in the Llanos basin in
    Colombia. These assets include our 49.7% and 50.0% ownership
    interests in our investments of Remora and SMVP, respectively,
    which we account for using the equity method of accounting. All
    of these assets are included in our oil and gas operating
    segment. We determined that the plan of sale criteria in the ASC
    Topic relating to the Presentation of Financial Statements for
    Assets Sold or Held for Sale had been met during the third
    quarter of 2010. Accordingly, we reclassified these wholly owned
    oil and gas assets from our property, plant and equipment, net,
    as well as our investment balances for Remora and SMVP from
    investments in unconsolidated affiliates to assets held for sale
    in our consolidated balance sheet at September 30, 2010.
 
    The operating results from these assets for all periods
    presented are reported as discontinued operations in the
    accompanying audited consolidated statements of income (loss)
    and the respective accompanying notes to
    120
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    the consolidated financial statements. Our condensed statements
    of income (loss) from discontinued operations for the years
    ended December 31, 2010, 2009 and 2008 were as follows:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
 
 | 
| 
    Condensed Statements of Income
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
 
 | 
    2008
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Revenues
 
 | 
 
 | 
    $
 | 
    37,840
 | 
 
 | 
 
 | 
    $
 | 
    8,937
 | 
 
 | 
 
 | 
    $
 | 
    4,354
 | 
 
 | 
| 
 
    Earnings (losses) from unconsolidated affiliates (1)
 
 | 
 
 | 
    $
 | 
    (10,628
 | 
    )
 | 
 
 | 
    $
 | 
    (59,248
 | 
    )
 | 
 
 | 
    $
 | 
    (37,286
 | 
    )
 | 
| 
 
    Income (loss) from discontinued operations
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Income (loss) from discontinued operations
 
 | 
 
 | 
    $
 | 
    (13,195
 | 
    )
 | 
 
 | 
    $
 | 
    (73,045
 | 
    )
 | 
 
 | 
    $
 | 
    (45,443
 | 
    )
 | 
| 
 
    Less: income tax expense (benefit)
 
 | 
 
 | 
 
 | 
    (1,865
 | 
    )
 | 
 
 | 
 
 | 
    (15,425
 | 
    )
 | 
 
 | 
 
 | 
    (3,513
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Income (loss) from discontinued operations, net of tax
 
 | 
 
 | 
    $
 | 
    (11,330
 | 
    )
 | 
 
 | 
    $
 | 
    (57,620
 | 
    )
 | 
 
 | 
    $
 | 
    (41,930
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 
     | 
     | 
     | 
    | 
    (1)  | 
     | 
    
    Includes our proportionate share of full-cost ceiling test
    writedowns of $47.8 million and $21.0 million for the
    years ended December 31, 2009 and 2008, respectively. | 
 
     | 
     | 
    | 
    Note 22  
 | 
    
    Segment
    Information
 | 
 
    As of December 31, 2010, we operated our business out of 11
    operating segments. Our seven Contract Drilling operating
    segments are engaged in drilling, workover and well-servicing
    and pressure pumping operations, on land and offshore, and
    represent reportable segments. These operating segments consist
    of our Alaska, U.S. Lower 48 Land Drilling, U.S. Land
    Well-servicing, Pressure Pumping, U.S. Offshore, Canada and
    International business units. Our oil and gas operating segment
    includes our wholly owned exploration entities and our
    unconsolidated oil and gas joint ventures with First Reserve
    Corporation. This segment is engaged in the exploration for, and
    the development of and production of oil and natural gas. Our
    Other Operating Segments, consisting of Canrig Drilling
    Technology Ltd., Ryan Energy Technologies, and Nabors Blue Sky
    Ltd., are engaged in the manufacturing of top drives,
    manufacturing of drilling instrumentation systems, construction
    and logistics services, trucking and logistics services,
    manufacturing and marketing of directional drilling and rig
    instrumentation systems, directional drilling, rig
    instrumentation and data collection services, and heliportable
    well services. These Other Operating Segments do not meet the
    criteria for disclosure, individually or in the aggregate, as
    reportable segments.
 
    The accounting policies of the segments are the same as those
    described in Note 2  Summary of Significant
    Accounting Policies. Inter-segment sales are recorded at cost or
    cost plus a profit margin. We evaluate the performance of our
    segments based on several criteria, including adjusted income
    (loss) derived from operating activities.
    
    121
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    The following table sets forth financial information with
    respect to our reportable segments:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
 
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
 
 | 
    2008
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Operating revenues and earnings (losses) from unconsolidated
    affiliates from continuing operations:(1)
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Contract Drilling:(2)
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    U.S. Lower 48 Land Drilling
 
 | 
 
 | 
    $
 | 
    1,294,853
 | 
 
 | 
 
 | 
    $
 | 
    1,082,531
 | 
 
 | 
 
 | 
    $
 | 
    1,878,441
 | 
 
 | 
| 
 
    U.S. Land Well-servicing
 
 | 
 
 | 
 
 | 
    444,665
 | 
 
 | 
 
 | 
 
 | 
    412,243
 | 
 
 | 
 
 | 
 
 | 
    758,510
 | 
 
 | 
| 
 
    Pressure Pumping(3)
 
 | 
 
 | 
 
 | 
    321,295
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    U.S. Offshore
 
 | 
 
 | 
 
 | 
    123,761
 | 
 
 | 
 
 | 
 
 | 
    157,305
 | 
 
 | 
 
 | 
 
 | 
    252,529
 | 
 
 | 
| 
 
    Alaska
 
 | 
 
 | 
 
 | 
    179,218
 | 
 
 | 
 
 | 
 
 | 
    204,407
 | 
 
 | 
 
 | 
 
 | 
    184,243
 | 
 
 | 
| 
 
    Canada
 
 | 
 
 | 
 
 | 
    389,229
 | 
 
 | 
 
 | 
 
 | 
    298,653
 | 
 
 | 
 
 | 
 
 | 
    502,695
 | 
 
 | 
| 
 
    International
 
 | 
 
 | 
 
 | 
    1,093,608
 | 
 
 | 
 
 | 
 
 | 
    1,265,097
 | 
 
 | 
 
 | 
 
 | 
    1,372,168
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Subtotal Contract Drilling(4)
 
 | 
 
 | 
 
 | 
    3,846,629
 | 
 
 | 
 
 | 
 
 | 
    3,420,236
 | 
 
 | 
 
 | 
 
 | 
    4,948,586
 | 
 
 | 
| 
 
    Oil and Gas(5)(6)
 
 | 
 
 | 
 
 | 
    40,611
 | 
 
 | 
 
 | 
 
 | 
    (158,780
 | 
    )
 | 
 
 | 
 
 | 
    (118,533
 | 
    )
 | 
| 
 
    Other Operating Segments(7)(8)
 
 | 
 
 | 
 
 | 
    456,893
 | 
 
 | 
 
 | 
 
 | 
    446,282
 | 
 
 | 
 
 | 
 
 | 
    683,186
 | 
 
 | 
| 
 
    Other reconciling items(9)
 
 | 
 
 | 
 
 | 
    (136,241
 | 
    )
 | 
 
 | 
 
 | 
    (179,752
 | 
    )
 | 
 
 | 
 
 | 
    (198,245
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total
 
 | 
 
 | 
    $
 | 
    4,207,892
 | 
 
 | 
 
 | 
    $
 | 
    3,527,986
 | 
 
 | 
 
 | 
    $
 | 
    5,314,994
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Depreciation and amortization, and depletion:(1)
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Contract Drilling:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    U.S. Lower 48 Land Drilling
 
 | 
 
 | 
    $
 | 
    241,258
 | 
 
 | 
 
 | 
    $
 | 
    226,875
 | 
 
 | 
 
 | 
    $
 | 
    210,764
 | 
 
 | 
| 
 
    U.S. Land Well-servicing
 
 | 
 
 | 
 
 | 
    65,561
 | 
 
 | 
 
 | 
 
 | 
    69,557
 | 
 
 | 
 
 | 
 
 | 
    65,050
 | 
 
 | 
| 
 
    Pressure Pumping(3)
 
 | 
 
 | 
 
 | 
    32,204
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    U.S. Offshore
 
 | 
 
 | 
 
 | 
    37,059
 | 
 
 | 
 
 | 
 
 | 
    37,204
 | 
 
 | 
 
 | 
 
 | 
    42,565
 | 
 
 | 
| 
 
    Alaska
 
 | 
 
 | 
 
 | 
    37,195
 | 
 
 | 
 
 | 
 
 | 
    29,946
 | 
 
 | 
 
 | 
 
 | 
    21,710
 | 
 
 | 
| 
 
    Canada
 
 | 
 
 | 
 
 | 
    74,735
 | 
 
 | 
 
 | 
 
 | 
    65,883
 | 
 
 | 
 
 | 
 
 | 
    67,373
 | 
 
 | 
| 
 
    International
 
 | 
 
 | 
 
 | 
    247,134
 | 
 
 | 
 
 | 
 
 | 
    208,949
 | 
 
 | 
 
 | 
 
 | 
    172,066
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Subtotal Contract Drilling
 
 | 
 
 | 
 
 | 
    735,146
 | 
 
 | 
 
 | 
 
 | 
    638,414
 | 
 
 | 
 
 | 
 
 | 
    579,528
 | 
 
 | 
| 
 
    Oil and Gas
 
 | 
 
 | 
 
 | 
    19,988
 | 
 
 | 
 
 | 
 
 | 
    9,476
 | 
 
 | 
 
 | 
 
 | 
    22,308
 | 
 
 | 
| 
 
    Other Operating Segments
 
 | 
 
 | 
 
 | 
    31,880
 | 
 
 | 
 
 | 
 
 | 
    30,542
 | 
 
 | 
 
 | 
 
 | 
    38,903
 | 
 
 | 
| 
 
    Other reconciling items(9)
 
 | 
 
 | 
 
 | 
    (4,818
 | 
    )
 | 
 
 | 
 
 | 
    (1,915
 | 
    )
 | 
 
 | 
 
 | 
    (4,064
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total depreciation and amortization, and depletion
 
 | 
 
 | 
    $
 | 
    782,196
 | 
 
 | 
 
 | 
    $
 | 
    676,517
 | 
 
 | 
 
 | 
    $
 | 
    636,675
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Adjusted income (loss) derived from operating activities from
    continuing operations:(1)(10)
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Contract Drilling:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    U.S. Lower 48 Land Drilling
 
 | 
 
 | 
    $
 | 
    274,215
 | 
 
 | 
 
 | 
    $
 | 
    294,679
 | 
 
 | 
 
 | 
    $
 | 
    628,579
 | 
 
 | 
| 
 
    U.S. Land Well-servicing
 
 | 
 
 | 
 
 | 
    31,597
 | 
 
 | 
 
 | 
 
 | 
    28,950
 | 
 
 | 
 
 | 
 
 | 
    148,626
 | 
 
 | 
| 
 
    Pressure Pumping(3)
 
 | 
 
 | 
 
 | 
    66,651
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    U.S. Offshore
 
 | 
 
 | 
 
 | 
    9,245
 | 
 
 | 
 
 | 
 
 | 
    30,508
 | 
 
 | 
 
 | 
 
 | 
    59,179
 | 
 
 | 
| 
 
    Alaska
 
 | 
 
 | 
 
 | 
    51,896
 | 
 
 | 
 
 | 
 
 | 
    62,742
 | 
 
 | 
 
 | 
 
 | 
    52,603
 | 
 
 | 
| 
 
    Canada
 
 | 
 
 | 
 
 | 
    22,970
 | 
 
 | 
 
 | 
 
 | 
    (7,019
 | 
    )
 | 
 
 | 
 
 | 
    61,040
 | 
 
 | 
| 
 
    International
 
 | 
 
 | 
 
 | 
    254,744
 | 
 
 | 
 
 | 
 
 | 
    365,566
 | 
 
 | 
 
 | 
 
 | 
    407,675
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Subtotal Contract Drilling(4)
 
 | 
 
 | 
 
 | 
    711,318
 | 
 
 | 
 
 | 
 
 | 
    775,426
 | 
 
 | 
 
 | 
 
 | 
    1,357,702
 | 
 
 | 
| 
 
    Oil and Gas(5)(6)
 
 | 
 
 | 
 
 | 
    6,329
 | 
 
 | 
 
 | 
 
 | 
    (190,798
 | 
    )
 | 
 
 | 
 
 | 
    (159,931
 | 
    )
 | 
| 
 
    Other Operating Segments(7)(8)
 
 | 
 
 | 
 
 | 
    43,179
 | 
 
 | 
 
 | 
 
 | 
    34,120
 | 
 
 | 
 
 | 
 
 | 
    68,572
 | 
 
 | 
| 
 
    Other reconciling items(11)
 
 | 
 
 | 
 
 | 
    (105,393
 | 
    )
 | 
 
 | 
 
 | 
    (196,844
 | 
    )
 | 
 
 | 
 
 | 
    (167,831
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total adjusted income derived from operating activities
 
 | 
 
 | 
    $
 | 
    655,433
 | 
 
 | 
 
 | 
    $
 | 
    421,904
 | 
 
 | 
 
 | 
    $
 | 
    1,098,512
 | 
 
 | 
    
    122
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
 
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
 
 | 
    2008
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Interest expense
 
 | 
 
 | 
 
 | 
    (273,044
 | 
    )
 | 
 
 | 
 
 | 
    (266,039
 | 
    )
 | 
 
 | 
 
 | 
    (196,718
 | 
    )
 | 
| 
 
    Investment income (loss)
 
 | 
 
 | 
 
 | 
    7,648
 | 
 
 | 
 
 | 
 
 | 
    25,599
 | 
 
 | 
 
 | 
 
 | 
    21,412
 | 
 
 | 
| 
 
    Gains (losses) on sales and retirements of long-lived assets and
    other (income) expense, net
 
 | 
 
 | 
 
 | 
    (47,060
 | 
    )
 | 
 
 | 
 
 | 
    (12,559
 | 
    )
 | 
 
 | 
 
 | 
    (15,829
 | 
    )
 | 
| 
 
    Impairments and other charges(12)
 
 | 
 
 | 
 
 | 
    (260,931
 | 
    )
 | 
 
 | 
 
 | 
    (330,976
 | 
    )
 | 
 
 | 
 
 | 
    (176,123
 | 
    )
 | 
| 
 
    Income (loss) from continuing operations before income taxes
 
 | 
 
 | 
 
 | 
    82,046
 | 
 
 | 
 
 | 
 
 | 
    (162,071
 | 
    )
 | 
 
 | 
 
 | 
    731,254
 | 
 
 | 
| 
 
    Income tax expense (benefit)
 
 | 
 
 | 
 
 | 
    (24,814
 | 
    )
 | 
 
 | 
 
 | 
    (133,803
 | 
    )
 | 
 
 | 
 
 | 
    209,660
 | 
 
 | 
| 
 
    Subsidiary preferred stock dividend
 
 | 
 
 | 
 
 | 
    750
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Income (loss) from continuing operations, net of tax
 
 | 
 
 | 
 
 | 
    106,110
 | 
 
 | 
 
 | 
 
 | 
    (28,268
 | 
    )
 | 
 
 | 
 
 | 
    521,594
 | 
 
 | 
| 
 
    Income (loss) from discontinued operations, net of tax
 
 | 
 
 | 
 
 | 
    (11,330
 | 
    )
 | 
 
 | 
 
 | 
    (57,620
 | 
    )
 | 
 
 | 
 
 | 
    (41,930
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net income (loss)
 
 | 
 
 | 
 
 | 
    94,780
 | 
 
 | 
 
 | 
 
 | 
    (85,888
 | 
    )
 | 
 
 | 
 
 | 
    479,664
 | 
 
 | 
| 
 
    Less: Net income (loss) attributable to noncontrolling interest
 
 | 
 
 | 
 
 | 
    (85
 | 
    )
 | 
 
 | 
 
 | 
    342
 | 
 
 | 
 
 | 
 
 | 
    (3,927
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net income (loss) attributable to Nabors
 
 | 
 
 | 
    $
 | 
    94,695
 | 
 
 | 
 
 | 
    $
 | 
    (85,546
 | 
    )
 | 
 
 | 
    $
 | 
    475,737
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
 
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
 
 | 
    2008
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Capital expenditures and acquisitions of businesses:(13)
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Contract Drilling:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    U.S. Lower 48 Land Drilling
 
 | 
 
 | 
    $
 | 
    294,239
 | 
 
 | 
 
 | 
    $
 | 
    327,269
 | 
 
 | 
 
 | 
    $
 | 
    405,831
 | 
 
 | 
| 
 
    U.S. Land Well-servicing
 
 | 
 
 | 
 
 | 
    84,657
 | 
 
 | 
 
 | 
 
 | 
    16,671
 | 
 
 | 
 
 | 
 
 | 
    48,911
 | 
 
 | 
| 
 
    Pressure Pumping(3)
 
 | 
 
 | 
 
 | 
    924,693
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    U.S. Offshore
 
 | 
 
 | 
 
 | 
    23,625
 | 
 
 | 
 
 | 
 
 | 
    48,694
 | 
 
 | 
 
 | 
 
 | 
    82,574
 | 
 
 | 
| 
 
    Alaska
 
 | 
 
 | 
 
 | 
    891
 | 
 
 | 
 
 | 
 
 | 
    55,426
 | 
 
 | 
 
 | 
 
 | 
    85,735
 | 
 
 | 
| 
 
    Canada
 
 | 
 
 | 
 
 | 
    53,834
 | 
 
 | 
 
 | 
 
 | 
    29,214
 | 
 
 | 
 
 | 
 
 | 
    85,113
 | 
 
 | 
| 
 
    International
 
 | 
 
 | 
 
 | 
    365,597
 | 
 
 | 
 
 | 
 
 | 
    328,252
 | 
 
 | 
 
 | 
 
 | 
    635,340
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Subtotal Contract Drilling
 
 | 
 
 | 
 
 | 
    1,747,536
 | 
 
 | 
 
 | 
 
 | 
    805,526
 | 
 
 | 
 
 | 
 
 | 
    1,343,504
 | 
 
 | 
| 
 
    Oil and Gas
 
 | 
 
 | 
 
 | 
    113,361
 | 
 
 | 
 
 | 
 
 | 
    184,185
 | 
 
 | 
 
 | 
 
 | 
    191,937
 | 
 
 | 
| 
 
    Other Operating Segments
 
 | 
 
 | 
 
 | 
    28,799
 | 
 
 | 
 
 | 
 
 | 
    20,446
 | 
 
 | 
 
 | 
 
 | 
    32,191
 | 
 
 | 
| 
 
    Other reconciling items(11)(17)
 
 | 
 
 | 
 
 | 
    (11,633
 | 
    )
 | 
 
 | 
 
 | 
    (19,870
 | 
    )
 | 
 
 | 
 
 | 
    10,609
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total capital expenditures and acquisitions of businesses
 
 | 
 
 | 
    $
 | 
    1,878,063
 | 
 
 | 
 
 | 
    $
 | 
    990,287
 | 
 
 | 
 
 | 
    $
 | 
    1,578,241
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
    123
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    December 31,
 | 
 
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
 
 | 
    2008
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Total assets:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Contract Drilling:(14)
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    U.S. Lower 48 Land Drilling
 
 | 
 
 | 
    $
 | 
    2,762,362
 | 
 
 | 
 
 | 
    $
 | 
    2,609,101
 | 
 
 | 
 
 | 
    $
 | 
    2,833,618
 | 
 
 | 
| 
 
    U.S. Land Well-servicing
 
 | 
 
 | 
 
 | 
    630,518
 | 
 
 | 
 
 | 
 
 | 
    594,456
 | 
 
 | 
 
 | 
 
 | 
    707,009
 | 
 
 | 
| 
 
    Pressure Pumping(3)
 
 | 
 
 | 
 
 | 
    1,163,236
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    U.S. Offshore
 
 | 
 
 | 
 
 | 
    379,292
 | 
 
 | 
 
 | 
 
 | 
    440,556
 | 
 
 | 
 
 | 
 
 | 
    480,324
 | 
 
 | 
| 
 
    Alaska
 
 | 
 
 | 
 
 | 
    313,123
 | 
 
 | 
 
 | 
 
 | 
    373,146
 | 
 
 | 
 
 | 
 
 | 
    356,603
 | 
 
 | 
| 
 
    Canada
 
 | 
 
 | 
 
 | 
    1,065,268
 | 
 
 | 
 
 | 
 
 | 
    984,740
 | 
 
 | 
 
 | 
 
 | 
    906,154
 | 
 
 | 
| 
 
    International
 
 | 
 
 | 
 
 | 
    3,279,763
 | 
 
 | 
 
 | 
 
 | 
    3,151,513
 | 
 
 | 
 
 | 
 
 | 
    3,080,947
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Subtotal Contract Drilling
 
 | 
 
 | 
 
 | 
    9,593,562
 | 
 
 | 
 
 | 
 
 | 
    8,153,512
 | 
 
 | 
 
 | 
 
 | 
    8,364,655
 | 
 
 | 
| 
 
    Oil and Gas(15)
 
 | 
 
 | 
 
 | 
    805,410
 | 
 
 | 
 
 | 
 
 | 
    835,465
 | 
 
 | 
 
 | 
 
 | 
    929,848
 | 
 
 | 
| 
 
    Other Operating Segments(16)
 
 | 
 
 | 
 
 | 
    539,373
 | 
 
 | 
 
 | 
 
 | 
    502,501
 | 
 
 | 
 
 | 
 
 | 
    578,802
 | 
 
 | 
| 
 
    Other reconciling items(11)(17)
 
 | 
 
 | 
 
 | 
    708,224
 | 
 
 | 
 
 | 
 
 | 
    1,153,212
 | 
 
 | 
 
 | 
 
 | 
    644,594
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total assets
 
 | 
 
 | 
    $
 | 
    11,646,569
 | 
 
 | 
 
 | 
    $
 | 
    10,644,690
 | 
 
 | 
 
 | 
    $
 | 
    10,517,899
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 
     | 
     | 
     | 
    | 
    (1)  | 
     | 
    
    All information presents the operating activities of oil and gas
    assets in the Horn River basin in Canada and in the Llanos basin
    in Colombia as discontinued operations. | 
|   | 
    | 
    (2)  | 
     | 
    
    These segments include our drilling, workover and well-servicing
    and pressure pumping operations, on land and offshore. | 
|   | 
    | 
    (3)  | 
     | 
    
    Includes operating results of the Superior Merger after
    September 10, 2010. | 
|   | 
    | 
    (4)  | 
     | 
    
    Includes earnings (losses), net from unconsolidated affiliates,
    accounted for using the equity method, of $6.9 million,
    $9.7 million and $5.8 million for the years ended
    December 31, 2010, 2009 and 2008, respectively. | 
|   | 
    | 
    (5)  | 
     | 
    
    Includes our proportionate share of full-cost ceiling test
    writedowns recorded by our unconsolidated U.S. oil and gas joint
    venture of $(189.3) million and $(207.3) million for
    the years ended December 31, 2009 and 2008, respectively. | 
|   | 
    | 
    (6)  | 
     | 
    
    Includes earnings (losses), net from unconsolidated affiliates,
    accounted for using the equity method, of $18.7 million,
    $(182.6) million and $(204.1) million for the years
    ended December 31, 2010, 2009 and 2008, respectively.
    Additional information is provided in Note 24 
    Supplemental Information on Oil and Gas Exploration and
    Production Activities. | 
|   | 
    | 
    (7)  | 
     | 
    
    Includes our drilling technology and top drive manufacturing,
    directional drilling, rig instrumentation and software, and
    construction and logistics operations. | 
|   | 
    | 
    (8)  | 
     | 
    
    Includes earnings (losses), net from unconsolidated affiliates,
    accounted for using the equity method, of $7.7 million,
    $17.5 million and $5.8 million for the years ended
    December 31, 2010, 2009 and 2008, respectively. | 
|   | 
    | 
    (9)  | 
     | 
    
    Represents the elimination of inter-segment transactions. | 
|   | 
    | 
    (10)  | 
     | 
    
    Adjusted income (loss) derived from operating activities is
    computed by subtracting direct costs, general and administrative
    expenses, depreciation and amortization, and depletion expense
    from Operating revenues and then adding Earnings (losses) from
    unconsolidated affiliates. Such amounts should not be used as a
    substitute for those amounts reported under GAAP. However,
    management evaluates the performance of our business units and
    the consolidated company based on several criteria, including
    adjusted income  | 
    124
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
     | 
     | 
     | 
    | 
 | 
     | 
    
    (loss) derived from operating activities, because it believes
    that these financial measures are an accurate reflection of the
    ongoing profitability of our Company. A reconciliation of this
    non-GAAP measure to income (loss) before income taxes, which is
    a GAAP measure, is provided within the above table. | 
|   | 
    | 
    (11)  | 
     | 
    
    Represents the elimination of inter-segment transactions and
    unallocated corporate expenses, assets and capital expenditures. | 
|   | 
    | 
    (12)  | 
     | 
    
    Represents impairments and other charges recorded during the
    years ended December 31, 2010, 2009 and 2008, respectively. | 
|   | 
    | 
    (13)  | 
     | 
    
    Includes the portion of the purchase price of acquisitions
    allocated to fixed assets and goodwill based on their fair
    market value. | 
|   | 
    | 
    (14)  | 
     | 
    
    Includes $54.8 million, $49.8 million and
    $49.2 million of investments in unconsolidated affiliates
    accounted for using the equity method as of December 31,
    2010, 2009 and 2008, respectively. | 
|   | 
    | 
    (15)  | 
     | 
    
    Includes $146.5 million, $190.1 million and
    $298.3 million investments in unconsolidated affiliates
    accounted for using the equity method as of December 31,
    2010, 2009 and 2008, respectively. | 
|   | 
    | 
    (16)  | 
     | 
    
    Includes $64.5 million, $65.8 million and
    $63.3 million of investments in unconsolidated affiliates
    accounted for using the equity method as of December 31,
    2010, 2009 and 2008, respectively. | 
|   | 
    | 
    (17)  | 
     | 
    
    Includes $1.9 million and $.9 million of investments
    in unconsolidated affiliates accounted for using the cost method
    as of December 31, 2010 and 2009, respectively. | 
 
    The following table sets forth financial information with
    respect to Nabors operations by geographic area:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31,
 | 
 
 | 
| 
 
 | 
 
 | 
    2010
 | 
 
 | 
 
 | 
    2009
 | 
 
 | 
 
 | 
    2008
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Operating revenues and earnings (losses) from unconsolidated
    affiliates from continuing operations:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    U.S. 
 
 | 
 
 | 
    $
 | 
    2,633,055
 | 
 
 | 
 
 | 
    $
 | 
    1,802,140
 | 
 
 | 
 
 | 
    $
 | 
    3,306,064
 | 
 
 | 
| 
 
    Outside the U.S. 
 
 | 
 
 | 
 
 | 
    1,574,837
 | 
 
 | 
 
 | 
 
 | 
    1,725,846
 | 
 
 | 
 
 | 
 
 | 
    2,008,930
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    $
 | 
    4,207,892
 | 
 
 | 
 
 | 
    $
 | 
    3,527,986
 | 
 
 | 
 
 | 
    $
 | 
    5,314,994
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Property, plant and equipment, net:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    U.S. 
 
 | 
 
 | 
    $
 | 
    4,447,388
 | 
 
 | 
 
 | 
    $
 | 
    4,107,250
 | 
 
 | 
 
 | 
    $
 | 
    4,059,697
 | 
 
 | 
| 
 
    Outside the U.S. 
 
 | 
 
 | 
 
 | 
    3,368,031
 | 
 
 | 
 
 | 
 
 | 
    3,538,800
 | 
 
 | 
 
 | 
 
 | 
    3,272,262
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    $
 | 
    7,815,419
 | 
 
 | 
 
 | 
    $
 | 
    7,646,050
 | 
 
 | 
 
 | 
    $
 | 
    7,331,959
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Goodwill:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    U.S. 
 
 | 
 
 | 
    $
 | 
    459,560
 | 
 
 | 
 
 | 
    $
 | 
    130,275
 | 
 
 | 
 
 | 
    $
 | 
    130,275
 | 
 
 | 
| 
 
    Outside the U.S. 
 
 | 
 
 | 
 
 | 
    34,812
 | 
 
 | 
 
 | 
 
 | 
    33,990
 | 
 
 | 
 
 | 
 
 | 
    45,474
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    $
 | 
    494,372
 | 
 
 | 
 
 | 
    $
 | 
    164,265
 | 
 
 | 
 
 | 
    $
 | 
    175,749
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
     | 
     | 
    | 
    Note 23  
 | 
    
    Condensed
    Consolidating Financial Information
 | 
 
    Nabors has fully and unconditionally guaranteed all of the
    issued public debt securities of Nabors Delaware, and Nabors and
    Nabors Delaware fully and unconditionally guaranteed the
    4.875% senior notes due August 2009 issued by Nabors
    Holdings 1, ULC, an unlimited liability company formed under the
    Companies Act of Nova Scotia, Canada and a subsidiary of Nabors
    (Nabors Holdings). During 2009, we paid the balance
    of Nabors Holdings 1, ULCs 4.875% senior notes.
    Effective September 30, 2009, Nabors Holdings 1, ULC was
    amalgamated with Nabors Drilling Canada ULC, the successor
    company.
    
    125
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    The following condensed consolidating financial information is
    included so that separate financial statements of Nabors
    Delaware and Nabors Holdings are not required to be filed with
    the SEC. The condensed consolidating financial statements
    present investments in both consolidated and unconsolidated
    affiliates using the equity method of accounting.
 
    The following condensed consolidating financial information
    presents condensed consolidating balance sheets as of
    December 31, 2010 and 2009, statements of income (loss) for
    the years ended December 31, 2010, 2009 and 2008 and the
    consolidating statements of cash flows for the years ended
    December 31, 2010, 2009 and 2008 of (a) Nabors,
    parent/guarantor, (b) Nabors Delaware, issuer of public
    debt securities guaranteed by Nabors and guarantor of the
    4.875% senior notes issued by Nabors Holdings,
    (c) Nabors Holdings, issuer of the 4.875% senior
    notes, (d) the non-guarantor subsidiaries,
    (e) consolidating adjustments necessary to consolidate
    Nabors and its subsidiaries and (f) Nabors on a
    consolidated basis.
    
    126
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    Condensed
    Consolidating Balance Sheets
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    December 31, 2010
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Nabors 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Other 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    Nabors 
    
 | 
 
 | 
 
 | 
    Delaware 
    
 | 
 
 | 
 
 | 
    Nabors 
    
 | 
 
 | 
 
 | 
    Subsidiaries 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    (Parent/ 
    
 | 
 
 | 
 
 | 
    (Issuer/ 
    
 | 
 
 | 
 
 | 
    Holdings 
    
 | 
 
 | 
 
 | 
    (Non- 
    
 | 
 
 | 
 
 | 
    Consolidating 
    
 | 
 
 | 
 
 | 
    Consolidated 
    
 | 
 
 | 
| 
 
 | 
 
 | 
    Guarantor)
 | 
 
 | 
 
 | 
    Guarantor)
 | 
 
 | 
 
 | 
    (Issuer)
 | 
 
 | 
 
 | 
    Guarantors)
 | 
 
 | 
 
 | 
    Adjustments
 | 
 
 | 
 
 | 
    Total
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    ASSETS
 
 | 
| 
 
    Current assets:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Cash and cash equivalents
 
 | 
 
 | 
    $
 | 
    10,847
 | 
 
 | 
 
 | 
    $
 | 
    20
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    630,835
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    641,702
 | 
 
 | 
| 
 
    Short-term investments
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    159,488
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    159,488
 | 
 
 | 
| 
 
    Assets held for sale
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    352,048
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    352,048
 | 
 
 | 
| 
 
    Accounts receivable, net
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    1,116,510
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    1,116,510
 | 
 
 | 
| 
 
    Inventory
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    158,836
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    158,836
 | 
 
 | 
| 
 
    Deferred income taxes
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    31,510
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    31,510
 | 
 
 | 
| 
 
    Other current assets
 
 | 
 
 | 
 
 | 
    50
 | 
 
 | 
 
 | 
 
 | 
    16,366
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    136,420
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    152,836
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total current assets
 
 | 
 
 | 
 
 | 
    10,897
 | 
 
 | 
 
 | 
 
 | 
    16,386
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    2,585,647
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    2,612,930
 | 
 
 | 
| 
 
    Long-term investments and other receivables
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    40,300
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    40,300
 | 
 
 | 
| 
 
    Property, plant and equipment, net
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    44,270
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    7,771,149
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    7,815,419
 | 
 
 | 
| 
 
    Goodwill
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    494,372
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    494,372
 | 
 
 | 
| 
 
    Intercompany receivables
 
 | 
 
 | 
 
 | 
    160,250
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    322,697
 | 
 
 | 
 
 | 
 
 | 
    (482,947
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Investment in unconsolidated affiliates
 
 | 
 
 | 
 
 | 
    5,160,800
 | 
 
 | 
 
 | 
 
 | 
    5,814,219
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    1,665,459
 | 
 
 | 
 
 | 
 
 | 
    (12,372,755
 | 
    )
 | 
 
 | 
 
 | 
    267,723
 | 
 
 | 
| 
 
    Other long-term assets
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    36,538
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    379,287
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    415,825
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total assets
 
 | 
 
 | 
    $
 | 
    5,331,947
 | 
 
 | 
 
 | 
    $
 | 
    5,911,413
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    13,258,911
 | 
 
 | 
 
 | 
    $
 | 
    (12,855,702
 | 
    )
 | 
 
 | 
    $
 | 
    11,646,569
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
| 
    LIABILITIES AND EQUITY
 | 
| 
 
    Current liabilities:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Current portion of
    long-term
    debt
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    1,378,178
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    840
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    1,379,018
 | 
 
 | 
| 
 
    Trade accounts payable
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    355,282
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    355,282
 | 
 
 | 
| 
 
    Accrued liabilities
 
 | 
 
 | 
 
 | 
    3,785
 | 
 
 | 
 
 | 
 
 | 
    89,480
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    301,027
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    394,292
 | 
 
 | 
| 
 
    Income taxes payable
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    6,859
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    18,929
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    25,788
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total current liabilities
 
 | 
 
 | 
 
 | 
    3,785
 | 
 
 | 
 
 | 
 
 | 
    1,474,517
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    676,078
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    2,154,380
 | 
 
 | 
| 
 
    Long-term debt
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    3,062,291
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    1,835
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    3,064,126
 | 
 
 | 
| 
 
    Other long-term liabilities
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    12,787
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    232,978
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    245,765
 | 
 
 | 
| 
 
    Deferred income taxes
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    71,815
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    698,432
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    770,247
 | 
 
 | 
| 
 
    Intercompany payable
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    301,451
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    181,496
 | 
 
 | 
 
 | 
 
 | 
    (482,947
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total liabilities
 
 | 
 
 | 
 
 | 
    3,785
 | 
 
 | 
 
 | 
 
 | 
    4,922,861
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    1,790,819
 | 
 
 | 
 
 | 
 
 | 
    (482,947
 | 
    )
 | 
 
 | 
 
 | 
    6,234,518
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Subsidiary preferred stock
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    69,188
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    69,188
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Shareholders equity
 
 | 
 
 | 
 
 | 
    5,328,162
 | 
 
 | 
 
 | 
 
 | 
    988,552
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    11,384,203
 | 
 
 | 
 
 | 
 
 | 
    (12,372,755
 | 
    )
 | 
 
 | 
 
 | 
    5,328,162
 | 
 
 | 
| 
 
    Noncontrolling interest
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    14,701
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    14,701
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total equity
 
 | 
 
 | 
 
 | 
    5,328,162
 | 
 
 | 
 
 | 
 
 | 
    988,552
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    11,398,904
 | 
 
 | 
 
 | 
 
 | 
    (12,372,755
 | 
    )
 | 
 
 | 
 
 | 
    5,342,863
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total liabilities and equity
 
 | 
 
 | 
    $
 | 
    5,331,947
 | 
 
 | 
 
 | 
    $
 | 
    5,911,413
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    13,258,911
 | 
 
 | 
 
 | 
    $
 | 
    (12,855,702
 | 
    )
 | 
 
 | 
    $
 | 
    11,646,569
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
    
    127
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    December 31, 2009
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Nabors 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Other 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    Nabors 
    
 | 
 
 | 
 
 | 
    Delaware 
    
 | 
 
 | 
 
 | 
    Nabors 
    
 | 
 
 | 
 
 | 
    Subsidiaries 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    (Parent/ 
    
 | 
 
 | 
 
 | 
    (Issuer/ 
    
 | 
 
 | 
 
 | 
    Holdings 
    
 | 
 
 | 
 
 | 
    (Non- 
    
 | 
 
 | 
 
 | 
    Consolidating 
    
 | 
 
 | 
 
 | 
    Consolidated 
    
 | 
 
 | 
| 
 
 | 
 
 | 
    Guarantor)
 | 
 
 | 
 
 | 
    Guarantor)
 | 
 
 | 
 
 | 
    (Issuer)
 | 
 
 | 
 
 | 
    Guarantors)
 | 
 
 | 
 
 | 
    Adjustments
 | 
 
 | 
 
 | 
    Total
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    ASSETS
 
 | 
| 
 
    Current assets:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Cash and cash equivalents
 
 | 
 
 | 
    $
 | 
    11,702
 | 
 
 | 
 
 | 
    $
 | 
    135
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    915,978
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    927,815
 | 
 
 | 
| 
 
    Short-term investments
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    163,036
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    163,036
 | 
 
 | 
| 
 
    Accounts receivable, net
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    724,040
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    724,040
 | 
 
 | 
| 
 
    Inventory
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    100,819
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    100,819
 | 
 
 | 
| 
 
    Deferred income taxes
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    125,163
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    125,163
 | 
 
 | 
| 
 
    Other current assets
 
 | 
 
 | 
 
 | 
    50
 | 
 
 | 
 
 | 
 
 | 
    (15,606
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    151,347
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    135,791
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total current assets
 
 | 
 
 | 
 
 | 
    11,752
 | 
 
 | 
 
 | 
 
 | 
    (15,471
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    2,180,383
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    2,176,664
 | 
 
 | 
| 
 
    Long-term investments and other receivables
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    100,882
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    100,882
 | 
 
 | 
| 
 
    Property, plant and equipment, net
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    46,473
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    7,599,577
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    7,646,050
 | 
 
 | 
| 
 
    Goodwill
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    164,265
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    164,265
 | 
 
 | 
| 
 
    Intercompany receivables
 
 | 
 
 | 
 
 | 
    233,482
 | 
 
 | 
 
 | 
 
 | 
    453,298
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    192,492
 | 
 
 | 
 
 | 
 
 | 
    (879,272
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Investment in unconsolidated affiliates
 
 | 
 
 | 
 
 | 
    4,923,949
 | 
 
 | 
 
 | 
 
 | 
    5,110,430
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    2,168,884
 | 
 
 | 
 
 | 
 
 | 
    (11,896,655
 | 
    )
 | 
 
 | 
 
 | 
    306,608
 | 
 
 | 
| 
 
    Other long-term assets
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    29,952
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    220,269
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    250,221
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total assets
 
 | 
 
 | 
    $
 | 
    5,169,183
 | 
 
 | 
 
 | 
    $
 | 
    5,624,682
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    12,626,752
 | 
 
 | 
 
 | 
    $
 | 
    (12,775,927
 | 
    )
 | 
 
 | 
    $
 | 
    10,644,690
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
| 
    LIABILITIES AND EQUITY
 | 
| 
 
    Current liabilities:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Current portion of long-term debt
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    163
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    163
 | 
 
 | 
| 
 
    Trade accounts payable
 
 | 
 
 | 
 
 | 
    20
 | 
 
 | 
 
 | 
 
 | 
    8
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    226,395
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    226,423
 | 
 
 | 
| 
 
    Accrued liabilities
 
 | 
 
 | 
 
 | 
    1,507
 | 
 
 | 
 
 | 
 
 | 
    78,359
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    266,471
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    346,337
 | 
 
 | 
| 
 
    Income taxes payable
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    9,530
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    26,169
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    35,699
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total current liabilities
 
 | 
 
 | 
 
 | 
    1,527
 | 
 
 | 
 
 | 
 
 | 
    87,897
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    519,198
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    608,622
 | 
 
 | 
| 
 
    Long-term debt
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    3,939,896
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    709
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    3,940,605
 | 
 
 | 
| 
 
    Other long-term liabilities
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    3,446
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    236,611
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    240,057
 | 
 
 | 
| 
 
    Deferred income taxes
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    112,760
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    560,667
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    673,427
 | 
 
 | 
| 
 
    Intercompany payable
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    879,272
 | 
 
 | 
 
 | 
 
 | 
    (879,272
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total liabilities
 
 | 
 
 | 
 
 | 
    1,527
 | 
 
 | 
 
 | 
 
 | 
    4,143,999
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    2,196,457
 | 
 
 | 
 
 | 
 
 | 
    (879,272
 | 
    )
 | 
 
 | 
 
 | 
    5,462,711
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Shareholders equity
 
 | 
 
 | 
 
 | 
    5,167,656
 | 
 
 | 
 
 | 
 
 | 
    1,480,683
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    10,415,972
 | 
 
 | 
 
 | 
 
 | 
    (11,896,655
 | 
    )
 | 
 
 | 
 
 | 
    5,167,656
 | 
 
 | 
| 
 
    Noncontrolling interest
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    14,323
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    14,323
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total equity
 
 | 
 
 | 
 
 | 
    5,167,656
 | 
 
 | 
 
 | 
 
 | 
    1,480,683
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    10,430,295
 | 
 
 | 
 
 | 
 
 | 
    (11,896,655
 | 
    )
 | 
 
 | 
 
 | 
    5,181,979
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total liabilities and equity
 
 | 
 
 | 
    $
 | 
    5,169,183
 | 
 
 | 
 
 | 
    $
 | 
    5,624,682
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    12,626,752
 | 
 
 | 
 
 | 
    $
 | 
    (12,775,927
 | 
    )
 | 
 
 | 
    $
 | 
    10,644,690
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    128
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    Condensed
    Consolidating Statements of Income (Loss)
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31, 2010
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Nabors 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Other 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    Nabors 
    
 | 
 
 | 
 
 | 
    Delaware 
    
 | 
 
 | 
 
 | 
    Nabors 
    
 | 
 
 | 
 
 | 
    Subsidiaries 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    (Parent/ 
    
 | 
 
 | 
 
 | 
    (Issuer/ 
    
 | 
 
 | 
 
 | 
    Holdings 
    
 | 
 
 | 
 
 | 
    (Non 
    
 | 
 
 | 
 
 | 
    Consolidating 
    
 | 
 
 | 
 
 | 
    Consolidated 
    
 | 
 
 | 
| 
 
 | 
 
 | 
    Guarantor)
 | 
 
 | 
 
 | 
    Guarantor)
 | 
 
 | 
 
 | 
    (Issuer)
 | 
 
 | 
 
 | 
    Guarantors)
 | 
 
 | 
 
 | 
    Adjustments
 | 
 
 | 
 
 | 
    Total
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Revenues and other income:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Operating revenues
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    4,174,635
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    4,174,635
 | 
 
 | 
| 
 
    Earnings (losses) from unconsolidated affiliates
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    33,257
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    33,257
 | 
 
 | 
| 
 
    Earnings (losses) from consolidated affiliates
 
 | 
 
 | 
 
 | 
    68,749
 | 
 
 | 
 
 | 
 
 | 
    (183,242
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (316,657
 | 
    )
 | 
 
 | 
 
 | 
    431,150
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Investment income (loss)
 
 | 
 
 | 
 
 | 
    15
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    7,633
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    7,648
 | 
 
 | 
| 
 
    Intercompany interest income
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    72,435
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (72,435
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total revenues and other income
 
 | 
 
 | 
 
 | 
    68,764
 | 
 
 | 
 
 | 
 
 | 
    (110,807
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    3,898,868
 | 
 
 | 
 
 | 
 
 | 
    358,715
 | 
 
 | 
 
 | 
 
 | 
    4,215,540
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Costs and other deductions:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Direct costs
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    2,423,602
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    2,423,602
 | 
 
 | 
| 
 
    General and administrative expenses
 
 | 
 
 | 
 
 | 
    9,165
 | 
 
 | 
 
 | 
 
 | 
    445
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    338,008
 | 
 
 | 
 
 | 
 
 | 
    (957
 | 
    )
 | 
 
 | 
 
 | 
    346,661
 | 
 
 | 
| 
 
    Depreciation and amortization
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    3,303
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    760,950
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    764,253
 | 
 
 | 
| 
 
    Depletion
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    17,943
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    17,943
 | 
 
 | 
| 
 
    Interest expense
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    283,396
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (10,352
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    273,044
 | 
 
 | 
| 
 
    Intercompany interest expense
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    72,435
 | 
 
 | 
 
 | 
 
 | 
    (72,435
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Losses (gains) on sales and retirements of long-lived assets and
    other expense (income), net
 
 | 
 
 | 
 
 | 
    (35,096
 | 
    )
 | 
 
 | 
 
 | 
    42,504
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    38,695
 | 
 
 | 
 
 | 
 
 | 
    957
 | 
 
 | 
 
 | 
 
 | 
    47,060
 | 
 
 | 
| 
 
    Impairments and other charges
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    260,931
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    260,931
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total costs and other deductions
 
 | 
 
 | 
 
 | 
    (25,931
 | 
    )
 | 
 
 | 
 
 | 
    329,648
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    3,902,212
 | 
 
 | 
 
 | 
 
 | 
    (72,435
 | 
    )
 | 
 
 | 
 
 | 
    4,133,494
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Income (loss) from continuing operations before income taxes
 
 | 
 
 | 
 
 | 
    94,695
 | 
 
 | 
 
 | 
 
 | 
    (440,455
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (3,344
 | 
    )
 | 
 
 | 
 
 | 
    431,150
 | 
 
 | 
 
 | 
 
 | 
    82,046
 | 
 
 | 
| 
 
    Income tax expense (benefit)
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (95,168
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    70,354
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (24,814
 | 
    )
 | 
| 
 
    Subsidiary preferred stock dividend
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    750
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    750
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Income (loss) from continuing operations, net of tax
 
 | 
 
 | 
 
 | 
    94,695
 | 
 
 | 
 
 | 
 
 | 
    (345,287
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (74,448
 | 
    )
 | 
 
 | 
 
 | 
    431,150
 | 
 
 | 
 
 | 
 
 | 
    106,110
 | 
 
 | 
| 
 
    Income (loss) from discontinued operations, net of tax
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (11,330
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (11,330
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net income (loss)
 
 | 
 
 | 
 
 | 
    94,695
 | 
 
 | 
 
 | 
 
 | 
    (345,287
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (85,778
 | 
    )
 | 
 
 | 
 
 | 
    431,150
 | 
 
 | 
 
 | 
 
 | 
    94,780
 | 
 
 | 
| 
 
    Less: Net (income) loss attributable to noncontrolling interest
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (85
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (85
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net income (loss) attributable to Nabors
 
 | 
 
 | 
    $
 | 
    94,695
 | 
 
 | 
 
 | 
    $
 | 
    (345,287
 | 
    )
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    (85,863
 | 
    )
 | 
 
 | 
    $
 | 
    431,150
 | 
 
 | 
 
 | 
    $
 | 
    94,695
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
    
    129
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31, 2009
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Nabors 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Other 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    Nabors 
    
 | 
 
 | 
 
 | 
    Delaware 
    
 | 
 
 | 
 
 | 
    Nabors 
    
 | 
 
 | 
 
 | 
    Subsidiaries 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    (Parent/ 
    
 | 
 
 | 
 
 | 
    (Issuer/ 
    
 | 
 
 | 
 
 | 
    Holdings 
    
 | 
 
 | 
 
 | 
    (Non 
    
 | 
 
 | 
 
 | 
    Consolidating 
    
 | 
 
 | 
 
 | 
    Consolidated 
    
 | 
 
 | 
| 
 
 | 
 
 | 
    Guarantor)
 | 
 
 | 
 
 | 
    Guarantor)
 | 
 
 | 
 
 | 
    (Issuer)
 | 
 
 | 
 
 | 
    Guarantors)
 | 
 
 | 
 
 | 
    Adjustments
 | 
 
 | 
 
 | 
    Total
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Revenues and other income:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Operating revenues
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    3,683,419
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    3,683,419
 | 
 
 | 
| 
 
    Earnings (losses) from unconsolidated affiliates
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (155,433
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (155,433
 | 
    )
 | 
| 
 
    Earnings (losses) from consolidated affiliates
 
 | 
 
 | 
 
 | 
    (74,204
 | 
    )
 | 
 
 | 
 
 | 
    (316,443
 | 
    )
 | 
 
 | 
 
 | 
    (86,751
 | 
    )
 | 
 
 | 
 
 | 
    (441,133
 | 
    )
 | 
 
 | 
 
 | 
    918,531
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Investment income (loss)
 
 | 
 
 | 
 
 | 
    58
 | 
 
 | 
 
 | 
 
 | 
    2,357
 | 
 
 | 
 
 | 
 
 | 
    101
 | 
 
 | 
 
 | 
 
 | 
    23,083
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    25,599
 | 
 
 | 
| 
 
    Intercompany interest income
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    66,150
 | 
 
 | 
 
 | 
 
 | 
    5,558
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (71,708
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total revenues and other income
 
 | 
 
 | 
 
 | 
    (74,146
 | 
    )
 | 
 
 | 
 
 | 
    (247,936
 | 
    )
 | 
 
 | 
 
 | 
    (81,092
 | 
    )
 | 
 
 | 
 
 | 
    3,109,936
 | 
 
 | 
 
 | 
 
 | 
    846,823
 | 
 
 | 
 
 | 
 
 | 
    3,553,585
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Costs and other deductions:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Direct costs
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    2,001,404
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    2,001,404
 | 
 
 | 
| 
 
    General and administrative expenses
 
 | 
 
 | 
 
 | 
    28,350
 | 
 
 | 
 
 | 
 
 | 
    336
 | 
 
 | 
 
 | 
 
 | 
    1
 | 
 
 | 
 
 | 
 
 | 
    400,044
 | 
 
 | 
 
 | 
 
 | 
    (570
 | 
    )
 | 
 
 | 
 
 | 
    428,161
 | 
 
 | 
| 
 
    Depreciation and amortization
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    3,594
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    663,506
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    667,100
 | 
 
 | 
| 
 
    Depletion
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    9,417
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    9,417
 | 
 
 | 
| 
 
    Interest expense
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    288,715
 | 
 
 | 
 
 | 
 
 | 
    5,634
 | 
 
 | 
 
 | 
 
 | 
    (28,310
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    266,039
 | 
 
 | 
| 
 
    Intercompany interest expense
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    71,708
 | 
 
 | 
 
 | 
 
 | 
    (71,708
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Losses (gains) on sales and retirements of long-lived assets and
    other expense (income), net
 
 | 
 
 | 
 
 | 
    (16,950
 | 
    )
 | 
 
 | 
 
 | 
    4,145
 | 
 
 | 
 
 | 
 
 | 
    5,069
 | 
 
 | 
 
 | 
 
 | 
    37,972
 | 
 
 | 
 
 | 
 
 | 
    (17,677
 | 
    )
 | 
 
 | 
 
 | 
    12,559
 | 
 
 | 
| 
 
    Impairments and other charges
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    330,976
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    330,976
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total costs and other deductions
 
 | 
 
 | 
 
 | 
    11,400
 | 
 
 | 
 
 | 
 
 | 
    296,790
 | 
 
 | 
 
 | 
 
 | 
    10,704
 | 
 
 | 
 
 | 
 
 | 
    3,486,717
 | 
 
 | 
 
 | 
 
 | 
    (89,955
 | 
    )
 | 
 
 | 
 
 | 
    3,715,656
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Income (loss) from continuing operations before income taxes
 
 | 
 
 | 
 
 | 
    (85,546
 | 
    )
 | 
 
 | 
 
 | 
    (544,726
 | 
    )
 | 
 
 | 
 
 | 
    (91,796
 | 
    )
 | 
 
 | 
 
 | 
    (376,781
 | 
    )
 | 
 
 | 
 
 | 
    936,778
 | 
 
 | 
 
 | 
 
 | 
    (162,071
 | 
    )
 | 
| 
 
    Income tax expense (benefit)
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (84,465
 | 
    )
 | 
 
 | 
 
 | 
    15,744
 | 
 
 | 
 
 | 
 
 | 
    (65,082
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (133,803
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Income (loss) from continuing operations, net of tax
 
 | 
 
 | 
 
 | 
    (85,546
 | 
    )
 | 
 
 | 
 
 | 
    (460,261
 | 
    )
 | 
 
 | 
 
 | 
    (107,540
 | 
    )
 | 
 
 | 
 
 | 
    (311,699
 | 
    )
 | 
 
 | 
 
 | 
    936,778
 | 
 
 | 
 
 | 
 
 | 
    (28,268
 | 
    )
 | 
| 
 
    Income (loss) from discontinued operations, net of tax
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (57,620
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (57,620
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net income (loss)
 
 | 
 
 | 
 
 | 
    (85,546
 | 
    )
 | 
 
 | 
 
 | 
    (460,261
 | 
    )
 | 
 
 | 
 
 | 
    (107,540
 | 
    )
 | 
 
 | 
 
 | 
    (369,319
 | 
    )
 | 
 
 | 
 
 | 
    936,778
 | 
 
 | 
 
 | 
 
 | 
    (85,888
 | 
    )
 | 
| 
 
    Less: Net (income) loss attributable to noncontrolling interest
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    342
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    342
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net income (loss) attributable to Nabors
 
 | 
 
 | 
    $
 | 
    (85,546
 | 
    )
 | 
 
 | 
    $
 | 
    (460,261
 | 
    )
 | 
 
 | 
    $
 | 
    (107,540
 | 
    )
 | 
 
 | 
    $
 | 
    (368,977
 | 
    )
 | 
 
 | 
    $
 | 
    936,778
 | 
 
 | 
 
 | 
    $
 | 
    (85,546
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
    130
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31, 2008
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Nabors 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Other 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    Nabors 
    
 | 
 
 | 
 
 | 
    Delaware 
    
 | 
 
 | 
 
 | 
    Nabors 
    
 | 
 
 | 
 
 | 
    Subsidiaries 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    (Parent/ 
    
 | 
 
 | 
 
 | 
    (Issuer/ 
    
 | 
 
 | 
 
 | 
    Holdings 
    
 | 
 
 | 
 
 | 
    (Non 
    
 | 
 
 | 
 
 | 
    Consolidating 
    
 | 
 
 | 
 
 | 
    Consolidated 
    
 | 
 
 | 
| 
 
 | 
 
 | 
    Guarantor)
 | 
 
 | 
 
 | 
    Guarantor)
 | 
 
 | 
 
 | 
    (Issuer)
 | 
 
 | 
 
 | 
    Guarantors)
 | 
 
 | 
 
 | 
    Adjustments
 | 
 
 | 
 
 | 
    Total
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Revenues and other income:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Operating revenues
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    5,507,542
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    5,507,542
 | 
 
 | 
| 
 
    Earnings (losses) from unconsolidated affiliates
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (192,548
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (192,548
 | 
    )
 | 
| 
 
    Earnings (losses) from consolidated affiliates
 
 | 
 
 | 
 
 | 
    490,138
 | 
 
 | 
 
 | 
 
 | 
    197,934
 | 
 
 | 
 
 | 
 
 | 
    19,335
 | 
 
 | 
 
 | 
 
 | 
    130,981
 | 
 
 | 
 
 | 
 
 | 
    (838,388
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Investment income (loss)
 
 | 
 
 | 
 
 | 
    364
 | 
 
 | 
 
 | 
 
 | 
    2,373
 | 
 
 | 
 
 | 
 
 | 
    3
 | 
 
 | 
 
 | 
 
 | 
    18,672
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    21,412
 | 
 
 | 
| 
 
    Intercompany interest income
 
 | 
 
 | 
 
 | 
    4,000
 | 
 
 | 
 
 | 
 
 | 
    70,017
 | 
 
 | 
 
 | 
 
 | 
    11,840
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (85,857
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total revenues and other income
 
 | 
 
 | 
 
 | 
    494,502
 | 
 
 | 
 
 | 
 
 | 
    270,324
 | 
 
 | 
 
 | 
 
 | 
    31,178
 | 
 
 | 
 
 | 
 
 | 
    5,464,647
 | 
 
 | 
 
 | 
 
 | 
    (924,245
 | 
    )
 | 
 
 | 
 
 | 
    5,336,406
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Costs and other deductions:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Direct costs
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    3,100,613
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    3,100,613
 | 
 
 | 
| 
 
    General and administrative expenses
 
 | 
 
 | 
 
 | 
    21,191
 | 
 
 | 
 
 | 
 
 | 
    494
 | 
 
 | 
 
 | 
 
 | 
    32
 | 
 
 | 
 
 | 
 
 | 
    458,792
 | 
 
 | 
 
 | 
 
 | 
    (1,315
 | 
    )
 | 
 
 | 
 
 | 
    479,194
 | 
 
 | 
| 
 
    Depreciation and amortization
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    3,901
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    610,466
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    614,367
 | 
 
 | 
| 
 
    Depletion
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    22,308
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    22,308
 | 
 
 | 
| 
 
    Interest expense
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    197,145
 | 
 
 | 
 
 | 
 
 | 
    11,440
 | 
 
 | 
 
 | 
 
 | 
    (11,867
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    196,718
 | 
 
 | 
| 
 
    Intercompany interest expense
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    85,857
 | 
 
 | 
 
 | 
 
 | 
    (85,857
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Losses (gains) on sales and retirements of long-lived assets and
    other expense (income), net
 
 | 
 
 | 
 
 | 
    (2,426
 | 
    )
 | 
 
 | 
 
 | 
    (5,045
 | 
    )
 | 
 
 | 
 
 | 
    27,444
 | 
 
 | 
 
 | 
 
 | 
    (5,459
 | 
    )
 | 
 
 | 
 
 | 
    1,315
 | 
 
 | 
 
 | 
 
 | 
    15,829
 | 
 
 | 
| 
 
    Impairments and other charges
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    176,123
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    176,123
 | 
 
 | 
| 
 
    Total costs and other deductions
 
 | 
 
 | 
 
 | 
    18,765
 | 
 
 | 
 
 | 
 
 | 
    196,495
 | 
 
 | 
 
 | 
 
 | 
    38,916
 | 
 
 | 
 
 | 
 
 | 
    4,436,833
 | 
 
 | 
 
 | 
 
 | 
    (85,857
 | 
    )
 | 
 
 | 
 
 | 
    4,605,152
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Income (loss) from continuing operations before income taxes
 
 | 
 
 | 
 
 | 
    475,737
 | 
 
 | 
 
 | 
 
 | 
    73,829
 | 
 
 | 
 
 | 
 
 | 
    (7,738
 | 
    )
 | 
 
 | 
 
 | 
    1,027,814
 | 
 
 | 
 
 | 
 
 | 
    (838,388
 | 
    )
 | 
 
 | 
 
 | 
    731,254
 | 
 
 | 
| 
 
    Income tax expense (benefit)
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (45,920
 | 
    )
 | 
 
 | 
 
 | 
    (2,477
 | 
    )
 | 
 
 | 
 
 | 
    258,057
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    209,660
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Income (loss) from continuing operations, net of tax
 
 | 
 
 | 
 
 | 
    475,737
 | 
 
 | 
 
 | 
 
 | 
    119,749
 | 
 
 | 
 
 | 
 
 | 
    (5,261
 | 
    )
 | 
 
 | 
 
 | 
    769,757
 | 
 
 | 
 
 | 
 
 | 
    (838,388
 | 
    )
 | 
 
 | 
 
 | 
    521,594
 | 
 
 | 
| 
 
    Income (loss) from discontinued operations, net of tax
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (41,930
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (41,930
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net income (loss)
 
 | 
 
 | 
 
 | 
    475,737
 | 
 
 | 
 
 | 
 
 | 
    119,749
 | 
 
 | 
 
 | 
 
 | 
    (5,261
 | 
    )
 | 
 
 | 
 
 | 
    727,827
 | 
 
 | 
 
 | 
 
 | 
    (838,388
 | 
    )
 | 
 
 | 
 
 | 
    479,664
 | 
 
 | 
| 
 
    Less: Net (income) loss attributable to noncontrolling interest
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (3,927
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (3,927
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net income (loss) attributable to Nabors
 
 | 
 
 | 
    $
 | 
    475,737
 | 
 
 | 
 
 | 
    $
 | 
    119,749
 | 
 
 | 
 
 | 
    $
 | 
    (5,261
 | 
    )
 | 
 
 | 
    $
 | 
    723,900
 | 
 
 | 
 
 | 
    $
 | 
    (838,388
 | 
    )
 | 
 
 | 
    $
 | 
    475,737
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    131
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    Condensed
    Consolidating Statements of Cash Flows
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31, 2010
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Nabors 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Other 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    Nabors 
    
 | 
 
 | 
 
 | 
    Delaware 
    
 | 
 
 | 
 
 | 
    Nabors 
    
 | 
 
 | 
 
 | 
    Subsidiaries 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    (Parent/ 
    
 | 
 
 | 
 
 | 
    (Issuer/ 
    
 | 
 
 | 
 
 | 
    Holdings 
    
 | 
 
 | 
 
 | 
    (Non 
    
 | 
 
 | 
 
 | 
    Consolidating 
    
 | 
 
 | 
 
 | 
    Consolidated 
    
 | 
 
 | 
| 
 
 | 
 
 | 
    Guarantor)
 | 
 
 | 
 
 | 
    Guarantor)
 | 
 
 | 
 
 | 
    (Issuer)
 | 
 
 | 
 
 | 
    Guarantors)
 | 
 
 | 
 
 | 
    Adjustments
 | 
 
 | 
 
 | 
    Total
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Net cash provided by (used for) operating activities
 
 | 
 
 | 
    $
 | 
    115,179
 | 
 
 | 
 
 | 
    $
 | 
    757,345
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    504,460
 | 
 
 | 
 
 | 
    $
 | 
    (270,000
 | 
    )
 | 
 
 | 
    $
 | 
    1,106,984
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Cash flows from investing activities:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Purchases of investments
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (34,147
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (34,147
 | 
    )
 | 
| 
 
    Sales and maturities of investments
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    34,613
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    34,613
 | 
 
 | 
| 
 
    Cash paid for acquisition of businesses, net
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (733,630
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (733,630
 | 
    )
 | 
| 
 
    Investment in unconsolidated affiliates
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (40,936
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (40,936
 | 
    )
 | 
| 
 
    Capital expenditures
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (930,277
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (930,277
 | 
    )
 | 
| 
 
    Proceeds from sales of assets and insurance claims
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    31,072
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    31,072
 | 
 
 | 
| 
 
    Cash paid for investments in consolidated affiliates
 
 | 
 
 | 
 
 | 
    (122,300
 | 
    )
 | 
 
 | 
 
 | 
    (1,027,134
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    1,149,434
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net cash provided by (used for) investing activities
 
 | 
 
 | 
 
 | 
    (122,300
 | 
    )
 | 
 
 | 
 
 | 
    (1,027,134
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (1,673,305
 | 
    )
 | 
 
 | 
 
 | 
    1,149,434
 | 
 
 | 
 
 | 
 
 | 
    (1,673,305
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Cash flows from financing activities:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Increase (decrease) in cash overdrafts
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (6,298
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (6,298
 | 
    )
 | 
| 
 
    Proceeds from long-term debt
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    696,948
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    696,948
 | 
 
 | 
| 
 
    Debt issuance costs
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (8,934
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (8,934
 | 
    )
 | 
| 
 
    Payments for hedge transactions
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (5,667
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (5,667
 | 
    )
 | 
| 
 
    Proceeds from Revolving Credit Facility
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    600,000
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    600,000
 | 
 
 | 
| 
 
    Intercompany debt
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Proceeds from issuance of common shares
 
 | 
 
 | 
 
 | 
    8,201
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    8,201
 | 
 
 | 
| 
 
    Reduction in long-term debt
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (274,095
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (124,419
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (398,514
 | 
    )
 | 
| 
 
    Reduction in Revolving Credit Facility
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (600,000
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (600,000
 | 
    )
 | 
| 
 
    Repurchase of equity component of convertible debt
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (4,712
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (4,712
 | 
    )
 | 
| 
 
    Settlement of call options and warrants, net
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    1,134
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    1,134
 | 
 
 | 
| 
 
    Purchase of restricted stock
 
 | 
 
 | 
 
 | 
    (1,935
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (1,935
 | 
    )
 | 
| 
 
    Tax benefit related to share-based awards
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    31
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    31
 | 
 
 | 
| 
 
    Cash dividends paid
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (135,000
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (135,000
 | 
    )
 | 
 
 | 
 
 | 
    270,000
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Proceeds from parent contributions
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    1,149,434
 | 
 
 | 
 
 | 
 
 | 
    (1,149,434
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net cash (used for) provided by financing activities
 
 | 
 
 | 
 
 | 
    6,266
 | 
 
 | 
 
 | 
 
 | 
    269,674
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    883,748
 | 
 
 | 
 
 | 
 
 | 
    (879,434
 | 
    )
 | 
 
 | 
 
 | 
    280,254
 | 
 
 | 
| 
 
    Effect of exchange rate changes on cash and cash equivalents
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (46
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (46
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net (decrease) increase in cash and cash equivalents
 
 | 
 
 | 
 
 | 
    (855
 | 
    )
 | 
 
 | 
 
 | 
    (115
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (285,143
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (286,113
 | 
    )
 | 
| 
 
    Cash and cash equivalents, beginning of period
 
 | 
 
 | 
 
 | 
    11,702
 | 
 
 | 
 
 | 
 
 | 
    135
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    915,978
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    927,815
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Cash and cash equivalents, end of period
 
 | 
 
 | 
    $
 | 
    10,847
 | 
 
 | 
 
 | 
    $
 | 
    20
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    630,835
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    641,702
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
    
    132
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31, 2009
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Nabors 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Other 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    Nabors 
    
 | 
 
 | 
 
 | 
    Delaware 
    
 | 
 
 | 
 
 | 
    Nabors 
    
 | 
 
 | 
 
 | 
    Subsidiaries 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    (Parent/ 
    
 | 
 
 | 
 
 | 
    (Issuer/ 
    
 | 
 
 | 
 
 | 
    Holdings 
    
 | 
 
 | 
 
 | 
    (Non 
    
 | 
 
 | 
 
 | 
    Consolidating 
    
 | 
 
 | 
 
 | 
    Consolidated 
    
 | 
 
 | 
| 
 
 | 
 
 | 
    Guarantor)
 | 
 
 | 
 
 | 
    Guarantor)
 | 
 
 | 
 
 | 
    (Issuer)
 | 
 
 | 
 
 | 
    Guarantors)
 | 
 
 | 
 
 | 
    Adjustments
 | 
 
 | 
 
 | 
    Total
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Net cash provided by (used for) operating activities
 
 | 
 
 | 
    $
 | 
    40,589
 | 
 
 | 
 
 | 
    $
 | 
    646,645
 | 
 
 | 
 
 | 
    $
 | 
    608
 | 
 
 | 
 
 | 
    $
 | 
    1,089,086
 | 
 
 | 
 
 | 
    $
 | 
    (159,956
 | 
    )
 | 
 
 | 
    $
 | 
    1,616,972
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Cash flows from investing activities:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Purchases of investments
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (32,674
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (32,674
 | 
    )
 | 
| 
 
    Sales and maturities of investments
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    57,033
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    57,033
 | 
 
 | 
| 
 
    Investment in unconsolidated affiliates
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (125,076
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (125,076
 | 
    )
 | 
| 
 
    Capital expenditures
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (1,093,435
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (1,093,435
 | 
    )
 | 
| 
 
    Proceeds from sales of assets and insurance claims
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    31,375
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    31,375
 | 
 
 | 
| 
 
    Proceeds from sale of consolidated affiliates
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    239,421
 | 
 
 | 
 
 | 
 
 | 
    (239,421
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Cash paid for investments in consolidated affiliates
 
 | 
 
 | 
 
 | 
    (46,912
 | 
    )
 | 
 
 | 
 
 | 
    (900,000
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    946,912
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net cash provided by (used for) investing activities
 
 | 
 
 | 
 
 | 
    (46,912
 | 
    )
 | 
 
 | 
 
 | 
    (900,000
 | 
    )
 | 
 
 | 
 
 | 
    239,421
 | 
 
 | 
 
 | 
 
 | 
    (1,402,198
 | 
    )
 | 
 
 | 
 
 | 
    946,912
 | 
 
 | 
 
 | 
 
 | 
    (1,162,777
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Cash flows from financing activities:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Increase (decrease) in cash overdrafts
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (18,157
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (18,157
 | 
    )
 | 
| 
 
    Proceeds from long-term debt
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    1,124,978
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    1,124,978
 | 
 
 | 
| 
 
    Debt issuance costs
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (8,832
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (8,832
 | 
    )
 | 
| 
 
    Intercompany debt
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    143,859
 | 
 
 | 
 
 | 
 
 | 
    (143,859
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Proceeds from issuance of common shares
 
 | 
 
 | 
 
 | 
    11,249
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    11,249
 | 
 
 | 
| 
 
    Reduction in long-term debt
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (856,203
 | 
    )
 | 
 
 | 
 
 | 
    (225,191
 | 
    )
 | 
 
 | 
 
 | 
    (407
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (1,081,801
 | 
    )
 | 
| 
 
    Repurchase of equity component of convertible debt
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (6,586
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (6,586
 | 
    )
 | 
| 
 
    Purchase of restricted stock
 
 | 
 
 | 
 
 | 
    (1,515
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (1,515
 | 
    )
 | 
| 
 
    Tax benefit related to share-based awards
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    37
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    37
 | 
 
 | 
| 
 
    Cash dividends paid
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (159,956
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    159,956
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Proceeds from parent contributions
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    946,912
 | 
 
 | 
 
 | 
 
 | 
    (946,912
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net cash (used for) provided by financing activities
 
 | 
 
 | 
 
 | 
    9,734
 | 
 
 | 
 
 | 
 
 | 
    253,394
 | 
 
 | 
 
 | 
 
 | 
    (241,288
 | 
    )
 | 
 
 | 
 
 | 
    784,489
 | 
 
 | 
 
 | 
 
 | 
    (786,956
 | 
    )
 | 
 
 | 
 
 | 
    19,373
 | 
 
 | 
| 
 
    Effect of exchange rate changes on cash and cash equivalents
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    12,160
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    12,160
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net (decrease) increase in cash and cash equivalents
 
 | 
 
 | 
 
 | 
    3,411
 | 
 
 | 
 
 | 
 
 | 
    39
 | 
 
 | 
 
 | 
 
 | 
    (1,259
 | 
    )
 | 
 
 | 
 
 | 
    483,537
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    485,728
 | 
 
 | 
| 
 
    Cash and cash equivalents, beginning of period
 
 | 
 
 | 
 
 | 
    8,291
 | 
 
 | 
 
 | 
 
 | 
    96
 | 
 
 | 
 
 | 
 
 | 
    1,259
 | 
 
 | 
 
 | 
 
 | 
    432,441
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    442,087
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Cash and cash equivalents, end of period
 
 | 
 
 | 
    $
 | 
    11,702
 | 
 
 | 
 
 | 
    $
 | 
    135
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    915,978
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    927,815
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
    133
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Year Ended December 31, 2008
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Nabors 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Other 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    Nabors 
    
 | 
 
 | 
 
 | 
    Delaware 
    
 | 
 
 | 
 
 | 
    Nabors 
    
 | 
 
 | 
 
 | 
    Subsidiaries 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    (Parent/ 
    
 | 
 
 | 
 
 | 
    (Issuer/ 
    
 | 
 
 | 
 
 | 
    Holdings 
    
 | 
 
 | 
 
 | 
    (Non 
    
 | 
 
 | 
 
 | 
    Consolidating 
    
 | 
 
 | 
 
 | 
    Consolidated 
    
 | 
 
 | 
| 
 
 | 
 
 | 
    Guarantor)
 | 
 
 | 
 
 | 
    Guarantor)
 | 
 
 | 
 
 | 
    (Issuer)
 | 
 
 | 
 
 | 
    Guarantors)
 | 
 
 | 
 
 | 
    Adjustments
 | 
 
 | 
 
 | 
    Total
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Net cash provided by (used for) operating activities
 
 | 
 
 | 
    $
 | 
    39,987
 | 
 
 | 
 
 | 
    $
 | 
    287,628
 | 
 
 | 
 
 | 
    $
 | 
    (162,293
 | 
    )
 | 
 
 | 
    $
 | 
    1,455,628
 | 
 
 | 
 
 | 
    $
 | 
    (158,126
 | 
    )
 | 
 
 | 
    $
 | 
    1,462,824
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Cash flows from investing activities:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Purchases of investments
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (269,983
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (269,983
 | 
    )
 | 
| 
 
    Sales and maturities of investments
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    521,613
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    521,613
 | 
 
 | 
| 
 
    Cash paid for acquisitions of businesses, net
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (287
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (287
 | 
    )
 | 
| 
 
    Investment in unconsolidated affiliates
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (271,309
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (271,309
 | 
    )
 | 
| 
 
    Capital expenditures
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (16,817
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (1,490,162
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (1,506,979
 | 
    )
 | 
| 
 
    Proceeds from sales of assets and insurance claims
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    69,842
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    69,842
 | 
 
 | 
| 
 
    Cash paid for investments in consolidated affiliates
 
 | 
 
 | 
 
 | 
    (85,927
 | 
    )
 | 
 
 | 
 
 | 
    (150,626
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (163,548
 | 
    )
 | 
 
 | 
 
 | 
    400,101
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net cash provided by (used for) investing activities
 
 | 
 
 | 
 
 | 
    (85,927
 | 
    )
 | 
 
 | 
 
 | 
    (167,443
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (1,603,834
 | 
    )
 | 
 
 | 
 
 | 
    400,101
 | 
 
 | 
 
 | 
 
 | 
    (1,457,103
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Cash flows from financing activities:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Increase (decrease) in cash overdrafts
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    23,858
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    23,858
 | 
 
 | 
| 
 
    Proceeds from long-term debt
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    962,901
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    962,901
 | 
 
 | 
| 
 
    Debt issuance costs
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (7,324
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (7,324
 | 
    )
 | 
| 
 
    Proceeds from issuance of common shares
 
 | 
 
 | 
 
 | 
    56,633
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (3
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    56,630
 | 
 
 | 
| 
 
    Reduction in long-term debt
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (836,431
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (80
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (836,511
 | 
    )
 | 
| 
 
    Repurchase of common shares
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (247,357
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (33,744
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (281,101
 | 
    )
 | 
| 
 
    Purchase of restricted stock
 
 | 
 
 | 
 
 | 
    (13,061
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (13,061
 | 
    )
 | 
| 
 
    Tax benefit related to share-based awards
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    5,369
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    5,369
 | 
 
 | 
| 
 
    Cash dividends paid
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (158,126
 | 
    )
 | 
 
 | 
 
 | 
    158,126
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Proceeds from parent contributions
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    163,548
 | 
 
 | 
 
 | 
 
 | 
    236,553
 | 
 
 | 
 
 | 
 
 | 
    (400,101
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net cash (used for) provided by financing activities
 
 | 
 
 | 
 
 | 
    43,572
 | 
 
 | 
 
 | 
 
 | 
    (122,842
 | 
    )
 | 
 
 | 
 
 | 
    163,548
 | 
 
 | 
 
 | 
 
 | 
    68,458
 | 
 
 | 
 
 | 
 
 | 
    (241,975
 | 
    )
 | 
 
 | 
 
 | 
    (89,239
 | 
    )
 | 
| 
 
    Effect of exchange rate changes on cash and cash equivalents
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (5,701
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (5,701
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net (decrease) increase in cash and cash equivalents
 
 | 
 
 | 
 
 | 
    (2,368
 | 
    )
 | 
 
 | 
 
 | 
    (2,657
 | 
    )
 | 
 
 | 
 
 | 
    1,255
 | 
 
 | 
 
 | 
 
 | 
    (85,449
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (89,219
 | 
    )
 | 
| 
 
    Cash and cash equivalents, beginning of period
 
 | 
 
 | 
 
 | 
    10,659
 | 
 
 | 
 
 | 
 
 | 
    2,753
 | 
 
 | 
 
 | 
 
 | 
    4
 | 
 
 | 
 
 | 
 
 | 
    517,890
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    531,306
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Cash and cash equivalents, end of period
 
 | 
 
 | 
    $
 | 
    8,291
 | 
 
 | 
 
 | 
    $
 | 
    96
 | 
 
 | 
 
 | 
    $
 | 
    1,259
 | 
 
 | 
 
 | 
    $
 | 
    432,441
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    442,087
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    134
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
     | 
     | 
    | 
    Note 24  
 | 
    
    Supplemental
    Information on Oil and Gas Exploration and Production Activities
    (unaudited)
 | 
 
    The operations of our Oil and Gas operating segment focus on the
    exploration for and the acquisition, development and production
    of natural gas, oil and natural gas liquids in the United
    States, the Canadian provinces of Alberta and British Columbia,
    and Colombia.
 
    Our Oil and Gas operating segment includes our wholly owned oil
    and gas assets and our unconsolidated oil and gas joint
    ventures. In December 2008, the SEC revised oil and gas
    reporting disclosures, which clarified that we should consider
    our equity-method investments when determining whether we have
    significant oil and gas activities beginning in 2009. A one-year
    deferral of the disclosure requirements was allowed if an entity
    became subject to the requirements because of the change to the
    definition of significant oil and gas activities. When operating
    results from our wholly owned oil and gas activities were
    considered with operating results from our unconsolidated oil
    and gas joint ventures, which we account for under the equity
    method of accounting, we determined that we had significant oil
    and gas activities under the new definition. Accordingly, we are
    presenting the information with regard to our oil and gas
    producing activities as of and for the year ended
    December 31, 2010.
 
    The estimates of net proved natural gas and oil reserves are
    based on reserve reports as of December 31, 2010, which
    were prepared by independent petroleum engineers. AJM Petroleum
    Consultants prepared reports of estimated proved oil and gas
    reserves for our wholly owned assets in Canada. Miller and
    Lents, Ltd. prepared reports of estimated proved oil and gas
    reserves for both our wholly and our U.S. joint ventures
    interests in natural gas and oil properties located in the
    United States. Netherland, Sewell & Associates, Inc.
    prepared reports of estimated proved oil reserves for certain
    oil properties located in Cat Canyon and West Cat Canyon Fields,
    Santa Barbara County, California. Lonquist & Co., LLC
    prepared reports of estimated proved oil and gas reserves for
    our wholly owned assets in Colombia.
 
    The following supplementary information includes our results of
    operations for oil and gas production activities; capitalized
    costs related to oil and gas producing activities; and costs
    incurred in oil and gas property acquisition, exploration and
    development. Supplemental information is also provided for the
    estimated quantities of proved oil and gas reserves; the
    standardized measure of discounted future net cash flows
    associated with proved oil and gas reserves; and a summary of
    the changes in the standardized measure of discounted future net
    cash flows associated with proved oil and gas reserves.
 
    Results
    of Operations
 
    Results of operations consist of all activities within our Oil
    and Gas operating segment. Net revenues from production include
    only the revenues from the production and sale of natural gas,
    oil, and natural gas liquids. Production costs are those
    incurred to operate and maintain wells and related equipment and
    facilities used in oil and gas operations. Exploration expenses
    include dry-hole costs, geological and geophysical expenses, and
    the costs of retaining undeveloped leaseholds. Income tax
    expense is calculated by applying the current statutory tax
    rates to the revenues after deducting costs, which include
    DD&A allowances, after giving
    
    135
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    effect to permanent differences. The results of operations
    exclude general office overhead and interest expense
    attributable to oil and gas activities.
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    For the Year Ended December 31, 2010
 | 
 
 | 
| 
 
 | 
 
 | 
    United 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    States
 | 
 
 | 
 
 | 
    Canada
 | 
 
 | 
 
 | 
    Colombia
 | 
 
 | 
 
 | 
    Total
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Results of Operations
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Consolidated Subsidiaries
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Revenue
 
 | 
 
 | 
    $
 | 
    19,180
 | 
 
 | 
 
 | 
    $
 | 
    11,276
 | 
 
 | 
 
 | 
    $
 | 
    16,619
 | 
 
 | 
 
 | 
    $
 | 
    47,075
 | 
 
 | 
| 
 
    Production costs
 
 | 
 
 | 
 
 | 
    8,510
 | 
 
 | 
 
 | 
 
 | 
    7,965
 | 
 
 | 
 
 | 
 
 | 
    7,918
 | 
 
 | 
 
 | 
 
 | 
    24,393
 | 
 
 | 
| 
 
    Exploration expenses
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    39,047
 | 
 
 | 
 
 | 
 
 | 
    39,047
 | 
 
 | 
| 
 
    Depreciation and depletion
 
 | 
 
 | 
 
 | 
    20,092
 | 
 
 | 
 
 | 
 
 | 
    5,424
 | 
 
 | 
 
 | 
 
 | 
    3,737
 | 
 
 | 
 
 | 
 
 | 
    29,253
 | 
 
 | 
| 
 
    Impairment of oil and gas properties
 
 | 
 
 | 
 
 | 
    110,165
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    110,165
 | 
 
 | 
| 
 
    Related income tax expense (benefit)
 
 | 
 
 | 
 
 | 
    (15,856
 | 
    )
 | 
 
 | 
 
 | 
    (3,078
 | 
    )
 | 
 
 | 
 
 | 
    610
 | 
 
 | 
 
 | 
 
 | 
    (18,324
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Results of producing activities for consolidated subsidiaries
 
 | 
 
 | 
    $
 | 
    (103,731
 | 
    )
 | 
 
 | 
    $
 | 
    965
 | 
 
 | 
 
 | 
    $
 | 
    (34,693
 | 
    )
 | 
 
 | 
    $
 | 
    (137,459
 | 
    )
 | 
| 
 
    Equity Companies(1)
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Revenue
 
 | 
 
 | 
    $
 | 
    64,736
 | 
 
 | 
 
 | 
    $
 | 
    6,038
 | 
 
 | 
 
 | 
    $
 | 
    20,176
 | 
 
 | 
 
 | 
    $
 | 
    90,950
 | 
 
 | 
| 
 
    Production costs
 
 | 
 
 | 
 
 | 
    18,460
 | 
 
 | 
 
 | 
 
 | 
    9,036
 | 
 
 | 
 
 | 
 
 | 
    9,174
 | 
 
 | 
 
 | 
 
 | 
    36,670
 | 
 
 | 
| 
 
    Depreciation and depletion
 
 | 
 
 | 
 
 | 
    24,221
 | 
 
 | 
 
 | 
 
 | 
    6,033
 | 
 
 | 
 
 | 
 
 | 
    7,058
 | 
 
 | 
 
 | 
 
 | 
    37,312
 | 
 
 | 
| 
 
    Impairment of oil and gas properties
 
 | 
 
 | 
 
 | 
    851
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    851
 | 
 
 | 
| 
 
    Realized gain on derivative instruments
 
 | 
 
 | 
 
 | 
    (25,424
 | 
    )
 | 
 
 | 
 
 | 
    (2,543
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (27,967
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Related income tax expense (benefit)(2)
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Results of producing activities for equity companies
 
 | 
 
 | 
    $
 | 
    46,628
 | 
 
 | 
 
 | 
    $
 | 
    (6,488
 | 
    )
 | 
 
 | 
    $
 | 
    3,944
 | 
 
 | 
 
 | 
    $
 | 
    44,084
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total results of operations
 
 | 
 
 | 
    $
 | 
    (57,103
 | 
    )
 | 
 
 | 
    $
 | 
    (5,523
 | 
    )
 | 
 
 | 
    $
 | 
    (30,749
 | 
    )
 | 
 
 | 
    $
 | 
    (93,375
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 
     | 
     | 
     | 
    | 
    (1)  | 
     | 
    
    Represents our proportionate share of interests in our equity
    companies. | 
|   | 
    | 
    (2)  | 
     | 
    
    Equity companies are
    pass-through
    entities for tax purposes. | 
 
    Capitalized
    Cost
 
    Capitalized costs include the cost of properties, equipment and
    facilities for oil and gas-producing activities. Capitalized
    costs for proved properties include costs for oil and gas
    leaseholds where proved reserves have been identified,
    development wells, and related equipment and facilities,
    including development wells in progress. Capitalized costs for
    unproved properties include costs for acquiring oil and gas
    leaseholds
    
    136
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    where no proved reserves have been identified, including costs
    of exploratory wells that are in the process of drilling or in
    active completion, and costs of exploratory wells suspended or
    waiting on completion.
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    For the Year Ended December 31, 2010
 | 
 
 | 
| 
 
 | 
 
 | 
    United States
 | 
 
 | 
 
 | 
    Canada
 | 
 
 | 
 
 | 
    Colombia
 | 
 
 | 
 
 | 
    Total
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Capitalized Costs
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Consolidated Subsidiaries
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Property acquisition costs, proved
 
 | 
 
 | 
    $
 | 
    480,618
 | 
 
 | 
 
 | 
    $
 | 
    62,109
 | 
 
 | 
 
 | 
    $
 | 
    57,251
 | 
 
 | 
 
 | 
    $
 | 
    599,978
 | 
 
 | 
| 
 
    Property acquisition costs, unproved
 
 | 
 
 | 
 
 | 
    136,625
 | 
 
 | 
 
 | 
 
 | 
    89,785
 | 
 
 | 
 
 | 
 
 | 
    1,174
 | 
 
 | 
 
 | 
 
 | 
    227,584
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total acquisition costs
 
 | 
 
 | 
 
 | 
    617,243
 | 
 
 | 
 
 | 
 
 | 
    151,894
 | 
 
 | 
 
 | 
 
 | 
    58,425
 | 
 
 | 
 
 | 
 
 | 
    827,562
 | 
 
 | 
| 
 
    Accumulated depreciation and depletion
 
 | 
 
 | 
 
 | 
    (463,330
 | 
    )
 | 
 
 | 
 
 | 
    (7,344
 | 
    )
 | 
 
 | 
 
 | 
    (3,782
 | 
    )
 | 
 
 | 
 
 | 
    (474,456
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net capitalized costs for consolidated subsidiaries
 
 | 
 
 | 
    $
 | 
    153,913
 | 
 
 | 
 
 | 
    $
 | 
    144,550
 | 
 
 | 
 
 | 
    $
 | 
    54,643
 | 
 
 | 
 
 | 
    $
 | 
    353,106
 | 
 
 | 
| 
 
    Equity Companies(1)
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Property acquisition costs, proved
 
 | 
 
 | 
    $
 | 
    749,515
 | 
 
 | 
 
 | 
    $
 | 
    78,224
 | 
 
 | 
 
 | 
    $
 | 
    98,629
 | 
 
 | 
 
 | 
    $
 | 
    926,368
 | 
 
 | 
| 
 
    Property acquisition costs, unproved
 
 | 
 
 | 
 
 | 
    108,541
 | 
 
 | 
 
 | 
 
 | 
    28,884
 | 
 
 | 
 
 | 
 
 | 
    883
 | 
 
 | 
 
 | 
 
 | 
    138,308
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total acquisition costs
 
 | 
 
 | 
 
 | 
    858,056
 | 
 
 | 
 
 | 
 
 | 
    107,108
 | 
 
 | 
 
 | 
 
 | 
    99,512
 | 
 
 | 
 
 | 
 
 | 
    1,064,676
 | 
 
 | 
| 
 
    Accumulated depreciation and depletion
 
 | 
 
 | 
 
 | 
    (460,622
 | 
    )
 | 
 
 | 
 
 | 
    (72,338
 | 
    )
 | 
 
 | 
 
 | 
    (31,825
 | 
    )
 | 
 
 | 
 
 | 
    (564,785
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Net capitalized costs for equity companies
 
 | 
 
 | 
    $
 | 
    397,434
 | 
 
 | 
 
 | 
    $
 | 
    34,770
 | 
 
 | 
 
 | 
    $
 | 
    67,687
 | 
 
 | 
 
 | 
    $
 | 
    499,891
 | 
 
 | 
 
 
     | 
     | 
     | 
    | 
    (1)  | 
     | 
    
    Represents our proportionate share of interests in our equity
    companies. | 
 
    Costs
    Incurred in Oil and Gas Property Acquisitions, Exploration and
    Development
 
    Amounts reported as costs incurred include both capitalized
    costs and costs charged to expense during 2010 for oil and gas
    property acquisition, exploration and development activities.
    Costs incurred also include new asset retirement obligations
    established in the current year, as well as increases or
    decreases to the asset retirement obligations resulting from
    changes to cost estimates during the year. Exploration costs
    include the costs of drilling and equipping successful
    exploration wells, as well as dry-hole costs, geological and
    
    137
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    geophysical expenses, and the costs of retaining undeveloped
    leaseholds. Development costs include the costs of drilling and
    equipping development wells, and construction of related
    production facilities.
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    For the Year Ended December 31, 2010
 | 
 
 | 
| 
 
 | 
 
 | 
    United 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    States
 | 
 
 | 
 
 | 
    Canada
 | 
 
 | 
 
 | 
    Colombia
 | 
 
 | 
 
 | 
    Total
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Costs incurred in property acquisitions, exploration and
    development activities
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Consolidated Subsidiaries
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Property acquisition costs, proved
 
 | 
 
 | 
    $
 | 
    25,080
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    25,080
 | 
 
 | 
| 
 
    Property acquisition costs, unproved
 
 | 
 
 | 
 
 | 
    25,202
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    1,000
 | 
 
 | 
 
 | 
 
 | 
    26,202
 | 
 
 | 
| 
 
    Exploration costs
 
 | 
 
 | 
 
 | 
    8,199
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    33,599
 | 
 
 | 
 
 | 
 
 | 
    41,798
 | 
 
 | 
| 
 
    Development costs
 
 | 
 
 | 
 
 | 
    19,118
 | 
 
 | 
 
 | 
 
 | 
    3,876
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    22,994
 | 
 
 | 
| 
 
    Asset retirement costs
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    770
 | 
 
 | 
 
 | 
 
 | 
    770
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total costs incurred for consolidated subsidiaries
 
 | 
 
 | 
    $
 | 
    77,599
 | 
 
 | 
 
 | 
    $
 | 
    3,876
 | 
 
 | 
 
 | 
    $
 | 
    35,369
 | 
 
 | 
 
 | 
    $
 | 
    116,844
 | 
 
 | 
| 
 
    Equity Companies(1)
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Property acquisition costs, proved
 
 | 
 
 | 
    $
 | 
    29,975
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    
 | 
 
 | 
 
 | 
    $
 | 
    29,975
 | 
 
 | 
| 
 
    Property acquisition costs, unproved
 
 | 
 
 | 
 
 | 
    34,207
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    34,207
 | 
 
 | 
| 
 
    Exploration costs
 
 | 
 
 | 
 
 | 
    108
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    29,927
 | 
 
 | 
 
 | 
 
 | 
    30,035
 | 
 
 | 
| 
 
    Development costs
 
 | 
 
 | 
 
 | 
    118,828
 | 
 
 | 
 
 | 
 
 | 
    1,056
 | 
 
 | 
 
 | 
 
 | 
    11,805
 | 
 
 | 
 
 | 
 
 | 
    131,689
 | 
 
 | 
| 
 
    Asset retirement costs
 
 | 
 
 | 
 
 | 
    296
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (104
 | 
    )
 | 
 
 | 
 
 | 
    192
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total costs incurred for equity companies
 
 | 
 
 | 
    $
 | 
    183,414
 | 
 
 | 
 
 | 
    $
 | 
    1,056
 | 
 
 | 
 
 | 
    $
 | 
    41,628
 | 
 
 | 
 
 | 
    $
 | 
    226,098
 | 
 
 | 
 
 
     | 
     | 
     | 
    | 
    (1)  | 
     | 
    
    Represents our proportionate share of interests in equity
    companies. | 
 
    Oil and
    Gas Reserves
 
    The reserve disclosures that follow reflect estimates of proved
    reserves for our consolidated subsidiaries and equity companies
    of natural gas, oil, and natural gas liquids owned at
    December 31, 2010 and changes in proved reserves during
    2010. Our year-end reserve volumes for 2010 shown in the
    following tables were calculated using average prices during the
    12-month
    period prior to the ending date of the period covered by the
    report, determined as an unweighted arithmetic average of the
    first-day-of-the-month
    price for each month within such period. These reserve
    quantities are also used in calculating
    unit-of-production
    depreciation rates and in calculating the standardized measure
    of discounted net cash flow. Estimates of volumes of proved
    reserves of natural gas at year end are expressed in billions of
    cubic feet (Bcf) at a pressure base of 14.73 pounds per square
    inch for natural gas and in millions of barrels (MMBbls) for oil
    and natural gas liquids.
 
    For our wholly owned properties in the United States, the prices
    used in our reserve reports were $3.72 per mcf for the
    12-month
    average of natural gas, $36.43 per barrel for liquid natural gas
    and $61.12 per barrel for oil at December 31, 2010. The
    prices used in our reserve reports by our unconsolidated
    U.S. joint venture were $4.53 per mcf for the
    12-month
    average of natural gas, $39.04 per barrel for liquid natural gas
    and $70.60 per barrel for oil at December 31, 2010. For our
    wholly owned properties in Canada, the price used in our reserve
    reports was $2.81 per mcf for the
    12-month
    average of natural gas at December 31, 2010. The
    12-month
    average price for natural gas used in the reserve report by our
    unconsolidated Canada joint venture was $2.78 per mcf at
    December 31, 2010. For our wholly owned properties in
    Colombia, the price used in our reserve reports was $78.21 per
    barrel for oil at December 31, 2010. The oil price used in
    the reserve report by our unconsolidated Colombia joint venture
    was $76.00 per barrel at December 31, 2010.
    
    138
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    Proved oil and gas reserves are those quantities of oil and gas,
    which, by analysis of geoscience and engineering data, can be
    estimated with reasonable certainty to be economically
    producible  from a given date forward, from known
    reservoirs, and under existing economic conditions, operating
    methods and government regulations  prior to the time
    at which contracts providing the right to operate expire, unless
    evidence indicates that renewal is reasonably certain.
 
    Revisions can include upward or downward changes in previously
    estimated volumes of proved reserves for existing fields due to
    the evaluation or re-evaluation of (1) already available
    geologic, reservoir or production data, (2) new geologic,
    reservoir or production data or (3) changes in average
    prices and year-end costs that are used in the estimation of
    reserves. This category can also include significant changes in
    either development strategy or production equipment/facility
    capacity.
 
    Proved reserves include 100 percent of each majority-owned
    affiliates participation in proved reserves and our
    ownership percentage of the proved reserves of equity companies,
    but exclude royalties and quantities due others.
 
    In the proved reserves tables, consolidated reserves and equity
    company reserves are reported separately. However, we do not
    view equity company reserves any differently than those from our
    consolidated subsidiaries.
 
    Net proved developed reserves are those volumes that are
    expected to be recovered through existing wells with existing
    equipment and operating methods or in which the cost of the
    required equipment is relatively minor compared to the cost of a
    new well. Net proved undeveloped reserves are those volumes that
    are
    
    139
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    expected to be recovered from new wells on undrilled acreage, or
    from existing wells where a relatively major expenditure is
    required for recompletion.
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    United States
 | 
 
 | 
 
 | 
    Canada
 | 
 
 | 
 
 | 
    Colombia
 | 
 
 | 
 
 | 
    Total
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Natural 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Natural 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Natural 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Natural 
    
 | 
 
 | 
| 
 
 | 
 
 | 
    Liquids 
    
 | 
 
 | 
 
 | 
    Gas 
    
 | 
 
 | 
 
 | 
    Liquids 
    
 | 
 
 | 
 
 | 
    Gas 
    
 | 
 
 | 
 
 | 
    Liquids 
    
 | 
 
 | 
 
 | 
    Gas 
    
 | 
 
 | 
 
 | 
    Liquids 
    
 | 
 
 | 
 
 | 
    Gas 
    
 | 
 
 | 
| 
    Reserves
 | 
 
 | 
    (MMBbls)
 | 
 
 | 
 
 | 
    (Bcf)
 | 
 
 | 
 
 | 
    (MMBbls)
 | 
 
 | 
 
 | 
    (Bcf)
 | 
 
 | 
 
 | 
    (MMBbls)
 | 
 
 | 
 
 | 
    (Bcf)
 | 
 
 | 
 
 | 
    (MMBbls)
 | 
 
 | 
 
 | 
    (Bcf)
 | 
 
 | 
|  
 | 
| 
 
    Net proved reserves of consolidated subsidiaries
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    January 1, 2010
 
 | 
 
 | 
 
 | 
    0.4
 | 
 
 | 
 
 | 
 
 | 
    29.6
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    5.0
 | 
 
 | 
 
 | 
 
 | 
    0.9
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    1.3
 | 
 
 | 
 
 | 
 
 | 
    34.6
 | 
 
 | 
| 
 
    Revisions
 
 | 
 
 | 
 
 | 
    0.1
 | 
 
 | 
 
 | 
 
 | 
    (11.7
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    3.6
 | 
 
 | 
 
 | 
 
 | 
    (0.7
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (0.6
 | 
    )
 | 
 
 | 
 
 | 
    (8.1
 | 
    )
 | 
| 
 
    Extensions, additions and discoveries
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    5.0
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    2.0
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    2.0
 | 
 
 | 
 
 | 
 
 | 
    5.0
 | 
 
 | 
| 
 
    Production
 
 | 
 
 | 
 
 | 
    (0.1
 | 
    )
 | 
 
 | 
 
 | 
    (3.1
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (3.1
 | 
    )
 | 
 
 | 
 
 | 
    (0.2
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (0.3
 | 
    )
 | 
 
 | 
 
 | 
    (6.2
 | 
    )
 | 
| 
 
    Purchases in place
 
 | 
 
 | 
 
 | 
    20.8
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    20.8
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
    Sales in place
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    December 31, 2010
 
 | 
 
 | 
 
 | 
    21.2
 | 
 
 | 
 
 | 
 
 | 
    19.8
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    5.5
 | 
 
 | 
 
 | 
 
 | 
    2.0
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    23.2
 | 
 
 | 
 
 | 
 
 | 
    25.3
 | 
 
 | 
| 
 
    Proportional interest in proved reserves of equity
    companies
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    January 1, 2010
 
 | 
 
 | 
 
 | 
    5.2
 | 
 
 | 
 
 | 
 
 | 
    466.9
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    7.5
 | 
 
 | 
 
 | 
 
 | 
    0.6
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    5.8
 | 
 
 | 
 
 | 
 
 | 
    474.4
 | 
 
 | 
| 
 
    Revisions
 
 | 
 
 | 
 
 | 
    1.5
 | 
 
 | 
 
 | 
 
 | 
    (119.1
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (0.8
 | 
    )
 | 
 
 | 
 
 | 
    0.5
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    2.0
 | 
 
 | 
 
 | 
 
 | 
    (119.9
 | 
    )
 | 
| 
 
    Extensions, additions and discoveries
 
 | 
 
 | 
 
 | 
    0.6
 | 
 
 | 
 
 | 
 
 | 
    108.5
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    1.3
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    1.9
 | 
 
 | 
 
 | 
 
 | 
    108.5
 | 
 
 | 
| 
 
    Production
 
 | 
 
 | 
 
 | 
    (0.2
 | 
    )
 | 
 
 | 
 
 | 
    (12.3
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (1.5
 | 
    )
 | 
 
 | 
 
 | 
    (0.3
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (0.5
 | 
    )
 | 
 
 | 
 
 | 
    (13.8
 | 
    )
 | 
| 
 
    Purchases in place
 
 | 
 
 | 
 
 | 
    0.8
 | 
 
 | 
 
 | 
 
 | 
    109.8
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    0.8
 | 
 
 | 
 
 | 
 
 | 
    109.8
 | 
 
 | 
| 
 
    Sales in place
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (1.0
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (0.2
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (0.2
 | 
    )
 | 
 
 | 
 
 | 
    (1.0
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    December 31, 2010
 
 | 
 
 | 
 
 | 
    7.9
 | 
 
 | 
 
 | 
 
 | 
    552.8
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    5.2
 | 
 
 | 
 
 | 
 
 | 
    1.9
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    9.8
 | 
 
 | 
 
 | 
 
 | 
    558.0
 | 
 
 | 
| 
 
    Total proved reserves at December 31, 2010
 
 | 
 
 | 
 
 | 
    29.1
 | 
 
 | 
 
 | 
 
 | 
    572.6
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    10.7
 | 
 
 | 
 
 | 
 
 | 
    3.9
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    33.0
 | 
 
 | 
 
 | 
 
 | 
    583.3
 | 
 
 | 
| 
 
    Proved Developed Reserves at December 31, 2010
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Consolidated subsidiaries
 
 | 
 
 | 
 
 | 
    2.7
 | 
 
 | 
 
 | 
 
 | 
    17.1
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    5.5
 | 
 
 | 
 
 | 
 
 | 
    1.6
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    4.3
 | 
 
 | 
 
 | 
 
 | 
    22.6
 | 
 
 | 
| 
 
    Equity companies(1)
 
 | 
 
 | 
 
 | 
    3.0
 | 
 
 | 
 
 | 
 
 | 
    147.1
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    5.2
 | 
 
 | 
 
 | 
 
 | 
    0.5
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    3.5
 | 
 
 | 
 
 | 
 
 | 
    152.3
 | 
 
 | 
| 
 
    Proved Undeveloped Reserves at December 31, 2010
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Consolidated subsidiaries
 
 | 
 
 | 
 
 | 
    18.5
 | 
 
 | 
 
 | 
 
 | 
    2.7
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    0.4
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    18.9
 | 
 
 | 
 
 | 
 
 | 
    2.7
 | 
 
 | 
| 
 
    Equity companies(1)
 
 | 
 
 | 
 
 | 
    4.9
 | 
 
 | 
 
 | 
 
 | 
    405.7
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    1.4
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    6.3
 | 
 
 | 
 
 | 
 
 | 
    405.7
 | 
 
 | 
 
 
     | 
     | 
     | 
    | 
    (1)  | 
     | 
    
    Represents our proportionate share of interests in equity
    companies. | 
 
    Standardized
    Measure of Discounted Future Cash Flows
 
    For the year ended December 31, 2010, the standardized
    measure of discounted future net cash flow was computed by
    applying
    first-day-of-the-month
    average prices, year-end costs and legislated tax rates and a
    discount factor of 10 percent to proved reserves. Estimated
    future net cash flows for all periods presented are reduced by
    estimated future development, production, abandonment and
    dismantlement costs based on existing costs, assuming
    continuation of existing economic conditions, and by estimated
    future income tax expense. These estimates also include
    assumptions about the timing of future production of proved
    reserves, and timing
    
    140
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
    of future development, production costs, and abandonment and
    dismantlement. Income tax expense, both U.S. and global, is
    calculated by applying the existing statutory tax rates,
    including any known future changes, to the pretax net cash flows
    giving effect to any permanent differences and reduced by the
    applicable tax basis. The 10-percent discount factor is
    prescribed by GAAP.
 
    The present value of future net cash flows does not purport to
    be an estimate of the fair market value of our consolidated
    subsidiaries and equity companies proved reserves. An
    estimate of fair value would also take into account, among other
    things, anticipated changes in future prices and costs, the
    expected recovery of reserves in excess of proved reserves and a
    discount factor more representative of the time value of money
    and the risks inherent in producing oil and gas. Significant
    changes in estimated reserve volumes or commodity prices could
    have a material effect on our consolidated financial statements.
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    For the Year Ended December 31, 2010
 | 
 
 | 
| 
 
 | 
 
 | 
    United States
 | 
 
 | 
 
 | 
    Canada
 | 
 
 | 
 
 | 
    Colombia
 | 
 
 | 
 
 | 
    Total
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Standardized Measure of Discounted Future Cash Flows
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Consolidated Subsidiaries
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Future cash flows from sales of oil and gas
 
 | 
 
 | 
    $
 | 
    1,468,944
 | 
 
 | 
 
 | 
    $
 | 
    16,435
 | 
 
 | 
 
 | 
    $
 | 
    156,921
 | 
 
 | 
 
 | 
    $
 | 
    1,642,300
 | 
 
 | 
| 
 
    Future production costs
 
 | 
 
 | 
 
 | 
    (481,487
 | 
    )
 | 
 
 | 
 
 | 
    (5,600
 | 
    )
 | 
 
 | 
 
 | 
    (83,556
 | 
    )
 | 
 
 | 
 
 | 
    (570,643
 | 
    )
 | 
| 
 
    Future development costs
 
 | 
 
 | 
 
 | 
    (152,309
 | 
    )
 | 
 
 | 
 
 | 
    (360
 | 
    )
 | 
 
 | 
 
 | 
    (16,216
 | 
    )
 | 
 
 | 
 
 | 
    (168,885
 | 
    )
 | 
| 
 
    Future income tax expense(2)
 
 | 
 
 | 
 
 | 
    (268,774
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (268,774
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Future net cash inflows
 
 | 
 
 | 
 
 | 
    566,374
 | 
 
 | 
 
 | 
 
 | 
    10,475
 | 
 
 | 
 
 | 
 
 | 
    57,149
 | 
 
 | 
 
 | 
 
 | 
    633,998
 | 
 
 | 
| 
 
    Effect of discounting net cash flows at 10%
 
 | 
 
 | 
 
 | 
    (353,232
 | 
    )
 | 
 
 | 
 
 | 
    (2,046
 | 
    )
 | 
 
 | 
 
 | 
    (10,256
 | 
    )
 | 
 
 | 
 
 | 
    (365,534
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Discounted future net cash flows
 
 | 
 
 | 
    $
 | 
    213,142
 | 
 
 | 
 
 | 
    $
 | 
    8,429
 | 
 
 | 
 
 | 
    $
 | 
    46,893
 | 
 
 | 
 
 | 
    $
 | 
    268,464
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Equity Companies(1)
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Future cash flows from sales of oil and gas
 
 | 
 
 | 
    $
 | 
    2,889,308
 | 
 
 | 
 
 | 
    $
 | 
    14,713
 | 
 
 | 
 
 | 
    $
 | 
    141,410
 | 
 
 | 
 
 | 
    $
 | 
    3,045,431
 | 
 
 | 
| 
 
    Future production costs
 
 | 
 
 | 
 
 | 
    (752,792
 | 
    )
 | 
 
 | 
 
 | 
    (6,463
 | 
    )
 | 
 
 | 
 
 | 
    (56,837
 | 
    )
 | 
 
 | 
 
 | 
    (816,092
 | 
    )
 | 
| 
 
    Future development costs
 
 | 
 
 | 
 
 | 
    (850,053
 | 
    )
 | 
 
 | 
 
 | 
    (992
 | 
    )
 | 
 
 | 
 
 | 
    (12,307
 | 
    )
 | 
 
 | 
 
 | 
    (863,352
 | 
    )
 | 
| 
 
    Future income tax expense(3)
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Future net cash inflows
 
 | 
 
 | 
 
 | 
    1,286,463
 | 
 
 | 
 
 | 
 
 | 
    7,258
 | 
 
 | 
 
 | 
 
 | 
    72,266
 | 
 
 | 
 
 | 
 
 | 
    1,365,987
 | 
 
 | 
| 
 
    Effect of discounting net cash flows at 10%
 
 | 
 
 | 
 
 | 
    (995,091
 | 
    )
 | 
 
 | 
 
 | 
    (1,477
 | 
    )
 | 
 
 | 
 
 | 
    (14,313
 | 
    )
 | 
 
 | 
 
 | 
    (1,010,881
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Discounted future net cash flows
 
 | 
 
 | 
    $
 | 
    291,372
 | 
 
 | 
 
 | 
    $
 | 
    5,781
 | 
 
 | 
 
 | 
    $
 | 
    57,953
 | 
 
 | 
 
 | 
    $
 | 
    355,106
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total consolidated and equity interests in standardized
    measure of discounted future net cash flows
 
 | 
 
 | 
    $
 | 
    504,514
 | 
 
 | 
 
 | 
    $
 | 
    14,210
 | 
 
 | 
 
 | 
    $
 | 
    104,846
 | 
 
 | 
 
 | 
    $
 | 
    623,570
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 
     | 
     | 
     | 
    | 
    (1)  | 
     | 
    
    Represents our proportionate share of interests in equity
    companies. | 
|   | 
    | 
    (2)  | 
     | 
    
    For Canada and Colombia, there are net operating loss
    carryforwards that are expected to offset any future taxable
    earnings. | 
|   | 
    | 
    (3)  | 
     | 
    
    Equity companies are pass-through entities for tax purposes. | 
    
    141
 
    Nabors
    Industries Ltd. and Subsidiaries
    
 
    NOTES TO
    CONSOLIDATED FINANCIAL
    STATEMENTS  (Continued)
 
 
    Change
    in Standardized Measure of Discounted Future Net Cash Flows
    Relating to Proved Oil and Gas Reserves
 
    The following table reflects the estimate of changes in the
    standardized measure of discounted future net cash flows from
    proved reserves:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    For the Year Ended December 31, 2010
 | 
 
 | 
| 
 
 | 
 
 | 
    United 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
 | 
 
 | 
    States
 | 
 
 | 
 
 | 
    Canada
 | 
 
 | 
 
 | 
    Colombia
 | 
 
 | 
 
 | 
    Total
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    Change in Standardized Measure of Discounted Future Net Cash
    Flows Relating to Proved Oil and Gas Reserves
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Consolidated Subsidiaries
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Discounted future net cash flows as of December 31, 2009
 
 | 
 
 | 
    $
 | 
    38,345
 | 
 
 | 
 
 | 
    $
 | 
    6,527
 | 
 
 | 
 
 | 
    $
 | 
    11,741
 | 
 
 | 
 
 | 
    $
 | 
    56,613
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Value of reserves added during the year due to extensions,
    discoveries and net purchase less related costs
 
 | 
 
 | 
 
 | 
    8,037
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    45,072
 | 
 
 | 
 
 | 
 
 | 
    53,109
 | 
 
 | 
| 
 
    Changes in value of previous-year reserves due to:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Sales of oil and gas produced, net of production costs
 
 | 
 
 | 
 
 | 
    (10,670
 | 
    )
 | 
 
 | 
 
 | 
    (3,311
 | 
    )
 | 
 
 | 
 
 | 
    (8,701
 | 
    )
 | 
 
 | 
 
 | 
    (22,682
 | 
    )
 | 
| 
 
    Development costs incurred during the year
 
 | 
 
 | 
 
 | 
    8,359
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    8,359
 | 
 
 | 
| 
 
    Net change in prices and production costs
 
 | 
 
 | 
 
 | 
    96,662
 | 
 
 | 
 
 | 
 
 | 
    46
 | 
 
 | 
 
 | 
 
 | 
    (2,555
 | 
    )
 | 
 
 | 
 
 | 
    94,153
 | 
 
 | 
| 
 
    Net change in future development costs
 
 | 
 
 | 
 
 | 
    4,155
 | 
 
 | 
 
 | 
 
 | 
    (192
 | 
    )
 | 
 
 | 
 
 | 
    285
 | 
 
 | 
 
 | 
 
 | 
    4,248
 | 
 
 | 
| 
 
    Revisions of previous reserves estimates
 
 | 
 
 | 
 
 | 
    (27,501
 | 
    )
 | 
 
 | 
 
 | 
    5,628
 | 
 
 | 
 
 | 
 
 | 
    (7,093
 | 
    )
 | 
 
 | 
 
 | 
    (28,966
 | 
    )
 | 
| 
 
    Purchases of reserves
 
 | 
 
 | 
 
 | 
    196,613
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    196,613
 | 
 
 | 
| 
 
    Accretion of discount
 
 | 
 
 | 
 
 | 
    3,562
 | 
 
 | 
 
 | 
 
 | 
    496
 | 
 
 | 
 
 | 
 
 | 
    1,030
 | 
 
 | 
 
 | 
 
 | 
    5,088
 | 
 
 | 
| 
 
    Other
 
 | 
 
 | 
 
 | 
    (17,357
 | 
    )
 | 
 
 | 
 
 | 
    (765
 | 
    )
 | 
 
 | 
 
 | 
    7,114
 | 
 
 | 
 
 | 
 
 | 
    (11,008
 | 
    )
 | 
| 
 
    Net change in income taxes(2)
 
 | 
 
 | 
 
 | 
    (87,063
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (87,063
 | 
    )
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total change in the standardized measure for consolidated
    subsidiaries
 
 | 
 
 | 
    $
 | 
    174,797
 | 
 
 | 
 
 | 
    $
 | 
    1,902
 | 
 
 | 
 
 | 
    $
 | 
    35,152
 | 
 
 | 
 
 | 
    $
 | 
    211,851
 | 
 
 | 
| 
 
    Discounted future net cash flows as of December 31, 2010
 
 | 
 
 | 
    $
 | 
    213,142
 | 
 
 | 
 
 | 
    $
 | 
    8,429
 | 
 
 | 
 
 | 
    $
 | 
    46,893
 | 
 
 | 
 
 | 
    $
 | 
    268,464
 | 
 
 | 
| 
 
    Equity Companies(1)
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Discounted future net cash flows as of December 31, 2009
 
 | 
 
 | 
    $
 | 
    52,941
 | 
 
 | 
 
 | 
    $
 | 
    9,569
 | 
 
 | 
 
 | 
    $
 | 
    13,706
 | 
 
 | 
 
 | 
    $
 | 
    76,216
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Value of reserves added during the year due to extensions,
    discoveries and net purchase less related costs
 
 | 
 
 | 
 
 | 
    20,230
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    40,664
 | 
 
 | 
 
 | 
 
 | 
    60,894
 | 
 
 | 
| 
 
    Changes in value of previous-year reserves due to:
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Sales of oil and gas produced, net of production costs
 
 | 
 
 | 
 
 | 
    (46,276
 | 
    )
 | 
 
 | 
 
 | 
    2,998
 | 
 
 | 
 
 | 
 
 | 
    (11,002
 | 
    )
 | 
 
 | 
 
 | 
    (54,280
 | 
    )
 | 
| 
 
    Development costs incurred during the year
 
 | 
 
 | 
 
 | 
    69,207
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    69,207
 | 
 
 | 
| 
 
    Net change in prices and production costs
 
 | 
 
 | 
 
 | 
    90,974
 | 
 
 | 
 
 | 
 
 | 
    (5,205
 | 
    )
 | 
 
 | 
 
 | 
    3,032
 | 
 
 | 
 
 | 
 
 | 
    88,801
 | 
 
 | 
| 
 
    Net change in future development costs
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (374
 | 
    )
 | 
 
 | 
 
 | 
    (847
 | 
    )
 | 
 
 | 
 
 | 
    (1,221
 | 
    )
 | 
| 
 
    Revisions of previous reserves estimates
 
 | 
 
 | 
 
 | 
    76,723
 | 
 
 | 
 
 | 
 
 | 
    (1,077
 | 
    )
 | 
 
 | 
 
 | 
    17,289
 | 
 
 | 
 
 | 
 
 | 
    92,935
 | 
 
 | 
| 
 
    Purchases of reserves
 
 | 
 
 | 
 
 | 
    5,453
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    5,453
 | 
 
 | 
| 
 
    Sales of reserves
 
 | 
 
 | 
 
 | 
    (1,446
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (5,418
 | 
    )
 | 
 
 | 
 
 | 
    (6,864
 | 
    )
 | 
| 
 
    Accretion of discount
 
 | 
 
 | 
 
 | 
    5,294
 | 
 
 | 
 
 | 
 
 | 
    794
 | 
 
 | 
 
 | 
 
 | 
    529
 | 
 
 | 
 
 | 
 
 | 
    6,617
 | 
 
 | 
| 
 
    Other
 
 | 
 
 | 
 
 | 
    18,272
 | 
 
 | 
 
 | 
 
 | 
    (924
 | 
    )
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    17,348
 | 
 
 | 
| 
 
    Net change in income taxes(3)
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total change in the standardized measure for equity companies
 
 | 
 
 | 
    $
 | 
    238,431
 | 
 
 | 
 
 | 
    $
 | 
    (3,788
 | 
    )
 | 
 
 | 
    $
 | 
    44,247
 | 
 
 | 
 
 | 
    $
 | 
    278,890
 | 
 
 | 
| 
 
    Discounted future net cash flows as of December 31, 2010
 
 | 
 
 | 
    $
 | 
    291,372
 | 
 
 | 
 
 | 
    $
 | 
    5,781
 | 
 
 | 
 
 | 
    $
 | 
    57,953
 | 
 
 | 
 
 | 
    $
 | 
    355,106
 | 
 
 | 
 
 
     | 
     | 
     | 
    | 
    (1)  | 
     | 
    
    Represents our proportionate share of interests in equity
    companies. | 
|   | 
    | 
    (2)  | 
     | 
    
    For Canada and Colombia, there are net operating loss
    carryforwards that are expected to offset any future taxable
    earnings. | 
|   | 
    | 
    (3)  | 
     | 
    
    Equity companies are pass-through entities for tax purposes. | 
    
    142
 
     | 
     | 
    | 
    ITEM 9.  
 | 
    
    CHANGES
    IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND
    FINANCIAL DISCLOSURE
 | 
 
    Not applicable.
 
     | 
     | 
    | 
    ITEM 9A.  
 | 
    
    CONTROLS
    AND PROCEDURES
 | 
 
    (a) Disclosure Controls and Procedures. We maintain a set
    of disclosure controls and procedures designed to provide
    reasonable assurance that information required to be disclosed
    in our reports filed under the Exchange Act is recorded,
    processed, summarized and reported within the time periods
    specified in the SECs rules and forms. We have investments
    in certain unconsolidated entities that we do not control or
    manage. Because we do not control or manage these entities, our
    disclosure controls and procedures with respect to these
    entities are necessarily more limited than those we maintain
    with respect to our consolidated subsidiaries.
 
    The Companys management, with the participation of the
    Companys Chairman and Chief Executive Officer and
    principal accounting and financial officer, has evaluated the
    effectiveness of the Companys disclosure controls and
    procedures (as such term is defined in
    Rules 13a-15(e)
    and
    15d-15(e)
    under the Exchange Act) as of the end of the period covered by
    this report. Based on this evaluation, the Companys
    Chairman and Chief Executive Officer and principal accounting
    and financial officer have concluded that, as of the end of the
    period, the Companys disclosure controls and procedures
    are effective, at the reasonable assurance level, in recording,
    processing, summarizing and reporting, on a timely basis,
    information required to be disclosed by the Company in reports
    that it files or submits under the Exchange Act and are
    effective, at the reasonable assurance level, in ensuring that
    information required to be disclosed by the Company in the
    reports that it files or submits under the Exchange Act is
    accumulated and communicated to the Companys management,
    including the Companys Chairman and Chief Executive
    Officer and principal accounting and financial officer, as
    appropriate to allow timely decisions regarding required
    disclosure.
 
    (b) Changes in Internal Control Over Financial Reporting.
    There have not been any changes in the Companys internal
    control over financial reporting (identified in connection with
    the evaluation required by paragraph (d) in
    Rules 13a-15
    and 15d-15
    under the Exchange Act) during the most recently completed
    fiscal quarter that have materially affected, or are reasonably
    likely to materially affect, the Companys internal control
    over financial reporting.
    
    143
 
    Managements
    Report on Internal Control Over Financial Reporting
 
    Management is responsible for establishing and maintaining
    adequate internal control over financial reporting. Our internal
    control over financial reporting is a process designed to
    provide reasonable assurance regarding the reliability of
    financial reporting and the preparation of financial statements
    for external purposes in accordance with GAAP. Our internal
    control over financial reporting includes those policies and
    procedures that (i) pertain to the maintenance of records
    that, in reasonable detail, accurately and fairly reflect the
    transactions and dispositions of the assets of the Company;
    (ii) provide reasonable assurance that transactions are
    recorded as necessary to permit preparation of financial
    statements in accordance with GAAP, and that receipts and
    expenditures of the Company are being made only in accordance
    with authorizations of management and directors of the Company;
    and (iii) provide reasonable assurance regarding prevention
    or timely detection of unauthorized acquisition, use, or
    disposition of the Companys assets that could have a
    material effect on the financial statements.
 
    Internal control over financial reporting cannot provide
    absolute assurance of achieving financial reporting objectives
    because of its inherent limitations. Internal control over
    financial reporting is a process that involves human diligence
    and compliance and is subject to lapses in judgment and
    breakdowns resulting from human failures. Internal control over
    financial reporting also can be circumvented by collusion or
    improper management override. Because of these limitations,
    there is a risk that material misstatements may not be prevented
    or detected on a timely basis by internal control over financial
    reporting. However, these inherent limitations are known
    features of the financial reporting process. Therefore, it is
    possible to design into the process safeguards to reduce, though
    not eliminate, this risk.
 
    Management conducted an evaluation of the effectiveness of the
    Companys internal control over financial reporting based
    on the framework in Internal Control  Integrated
    Framework issued by the Committee of Sponsoring Organizations of
    the Treadway Commission (COSO). Based on this evaluation,
    management concluded that the Companys internal control
    over financial reporting was effective as of December 31,
    2010. Management excluded the acquisition of Superior Well
    Services, Inc. (Superior) from the assessment of
    internal control over financial reporting as of
    December 31, 2010 because Superior was acquired in a
    business combination on September 10, 2010. Superiors
    total assets and revenues constitute 10 and 8 percent,
    respectively, of our related consolidated financial statements
    as of and for the year ended December 31, 2010.
    PricewaterhouseCoopers LLP has issued a report on the
    effectiveness of internal control over financial reporting,
    which is included in Part II, Item 8 of this report.
 
     | 
     | 
    | 
    ITEM 9B.  
 | 
    
    OTHER
    INFORMATION
 | 
 
    Not applicable.
    
    144
 
 
    PART III
 
     | 
     | 
    | 
    ITEM 10.  
 | 
    
    DIRECTORS,
    EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE
 | 
 
    The information called for by this item will be contained in the
    definitive Proxy Statement to be distributed in connection with
    our 2011 annual meeting of shareholders under the captions
    Election of Directors, Other
    Executive Officers, Section 16(a)
    Beneficial Ownership Reporting Compliance, and is
    incorporated into this document by reference.
 
    We have adopted a Code of Business Conduct that satisfies the
    SECs definition of a Code of Ethics and
    applies to all employees, including our principal executive
    officer, principal financial officer, and principal accounting
    officer. The Code of Ethics is posted on our website at
    www.nabors.com. We intend to disclose on our website any
    amendments to the Code of Conduct and any waivers of the Code of
    Conduct that apply to our principal executive officer, principal
    financial officer, and principal accounting officer.
 
    On June 30, 2010, we filed with the New York Stock
    Exchange, or NYSE, the Annual CEO Certification regarding our
    compliance with the NYSEs Corporate Governance listing
    standards as required by
    Section 303A-12(a)
    of the NYSE Listed Company Manual.
 
     | 
     | 
    | 
    ITEM 11.  
 | 
    
    EXECUTIVE
    COMPENSATION
 | 
 
    The information called for by this item will be contained in our
    definitive Proxy Statement to be distributed in connection with
    our 2011 annual meeting of shareholders under the caption
    Management Compensation and except as
    specified in the following sentence, is incorporated into this
    document by reference. Information in Nabors 2011 proxy
    statement not deemed to be soliciting material or
    filed with the Commission under its rules, including
    the Compensation Committee Report, is not deemed to be
    incorporated by reference.
 
     | 
     | 
    | 
    ITEM 12.  
 | 
    
    SECURITY
    OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND
    RELATED SHAREHOLDER MATTERS
 | 
 
    We maintain five different equity compensation plans: 1996
    Employee Stock Plan, 1997 Executive Officers Incentive Stock
    Plan, 1998 Employee Stock Plan, 1999 Stock Option Plan for
    Non-Employee Directors and 2003 Employee Stock Plan pursuant to
    which we may grant equity awards to eligible persons. The terms
    of our equity compensation plans are described more fully below.
 
    The following table gives information about these equity
    compensation plans as of December 31, 2010:
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    (a) 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    (c) 
    
 | 
 
 | 
| 
 
 | 
 
 | 
    Number of 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Number of Securities 
    
 | 
 
 | 
| 
 
 | 
 
 | 
    Securities to be 
    
 | 
 
 | 
 
 | 
    (b) 
    
 | 
 
 | 
 
 | 
    Remaining Available for 
    
 | 
 
 | 
| 
 
 | 
 
 | 
    Issued Upon 
    
 | 
 
 | 
 
 | 
    Weighted-Average 
    
 | 
 
 | 
 
 | 
    Future Issuance Under 
    
 | 
 
 | 
| 
 
 | 
 
 | 
    Exercise of 
    
 | 
 
 | 
 
 | 
    Exercise Price of 
    
 | 
 
 | 
 
 | 
    Equity Compensation 
    
 | 
 
 | 
| 
 
 | 
 
 | 
    Outstanding 
    
 | 
 
 | 
 
 | 
    Outstanding 
    
 | 
 
 | 
 
 | 
    Plans (Excluding 
    
 | 
 
 | 
| 
 
 | 
 
 | 
    Options, Warrants 
    
 | 
 
 | 
 
 | 
    Options, Warrants 
    
 | 
 
 | 
 
 | 
    Securities 
    
 | 
 
 | 
| 
    Plan category
 | 
 
 | 
    and Rights
 | 
 
 | 
 
 | 
    and Rights
 | 
 
 | 
 
 | 
    Reflected in Column (a))
 | 
 
 | 
|  
 | 
| 
 
    Equity compensation plans approved by security holders
 
 | 
 
 | 
 
 | 
    24,618,032
 | 
 
 | 
 
 | 
    $
 | 
    17.9089
 | 
 
 | 
 
 | 
 
 | 
    17,282,075
 | 
 
 | 
| 
 
    Equity compensation plans not approved by security holders
 
 | 
 
 | 
 
 | 
    4,313,779
 | 
 
 | 
 
 | 
    $
 | 
    23.4348
 | 
 
 | 
 
 | 
 
 | 
    847,357
 | 
 
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Total
 
 | 
 
 | 
 
 | 
    28,931,811
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    18,129,432
 | 
 
 | 
 
 
     | 
     | 
     | 
    | 
    (1)  | 
     | 
    
    The 1996 Employee Stock Plan incorporated an evergreen formula
    pursuant to which on each January 1, the aggregate number
    of shares reserved for issuance under the plan were increased by
    an amount equal to 1
    1/2 % of
    the common shares outstanding on September 30 of the immediately
    preceding fiscal year. The 1996 Employee Stock Plan expired on
    January 17, 2006. | 
|   | 
    | 
    (2)  | 
     | 
    
    The 2003 Employee Stock Plan provides, commencing on
    June 1, 2006 and thereafter for a period of four
    (4) years on each January 1, for an automatic increase
    in the number of shares reserved and available for  | 
    
    145
 
     | 
     | 
     | 
    | 
 | 
     | 
    
    issuance under the Plan by an amount equal to two percent (2%)
    of the Companys outstanding common shares as of each June
    1 or January 1 date. | 
 
    Following is a brief summary of the material terms of the plans
    that have not been approved by our shareholders. Unless
    otherwise indicated, (1) each plan is administered by an
    independent committee appointed by the Companys Board of
    Directors; (2) the exercise price of options granted under
    each plan must be no less than 100% of the fair market value per
    common share on the date of the grant of the option;
    (3) the term of an award granted under each plan may not
    exceed 10 years; (4) options granted under the plan
    are nonstatutory options (NSOs) not intended to
    qualify under Section 422 of the Internal Revenue Code of
    1986, as amended (the IRC); and (5) unless
    otherwise determined by the committee in its discretion, options
    may not be exercised after the optionee has ceased to be
    employed by the Company.
 
    1998
    Employee Stock Plan
 
    The plan reserves for issuance up to 35,000,000 common shares of
    the Company pursuant to the exercise of options granted under
    the plan. The persons eligible to participate in the plan are
    employees and consultants of the Company. Options granted to
    employees may either be awards of shares, non-qualified stock
    options (each, an NQSO), incentive stock options
    (each, an ISO) or stock appreciation rights (each,
    an SAR). An optionee may reduce the option exercise
    price by paying the Company in cash, shares, options, or the
    equivalent, an amount equal to the difference between the
    exercise price and the reduced exercise price of the option. The
    administrative committee must establish performance goals for
    stock awards in writing not later than the date required for
    compliance under Section 162(m) of the IRC, and vesting of
    these shares is contingent upon the attainment of such
    performance goals. Stock awards vest over a period determined by
    the Committee, which period must expire no later than
    January 9, 2008. The committee may grant ISOs of not less
    than 100% of the fair market value per common share on the date
    of grant; except that in the event the optionee owns on the date
    of grant, securities possessing more than 10% of the total
    combined voting power of all classes of securities of the
    Company or of any subsidiary of the Company, the price per share
    must not be less than 110% of the fair market value per common
    share on the date of the grant. The option must expire five
    years from the date it is granted. SARs may be granted in
    conjunction with all or part of any option granted under the
    plan, in which case the exercise of the SAR must require the
    cancellation of a corresponding portion of the option;
    conversely, the exercise of the option will result in
    cancellation of a corresponding portion of the SAR. In the case
    of a NQSO, SARs may be granted either at or after the time of
    grant of the option. In the case of an ISO, SARs may be granted
    only at the time of grant of the option. A SAR may also be
    granted on a stand-alone basis. The term of a SAR must be
    established by the committee. The exercise price of a SAR cannot
    be less than 100% of the fair market value per common share on
    the date of grant. The committee has the authority to make
    provisions in its award and grant agreements to address vesting
    and other issues arising in connection with a change of control.
 
    1999
    Stock Option Plan for Non-Employee Directors
 
    The plan reserves for issuance up to 3,000,000 common shares of
    the Company pursuant to the exercise of options granted under
    the plan. The plan is administered by the Companys Board
    of Directors or a committee appointed by the Board to administer
    the plan. Eligible directors may not consider or vote on the
    administration of the plan or serve as a member of the
    committee. Options may be granted under the plan to non-employee
    directors of the Company. Options vest and become
    non-forfeitable on the first anniversary of the option grant if
    the optionee has continued to serve as a director until that
    day, unless otherwise provided. In the event of termination of
    an optionees service as a director by reason of voluntary
    retirement, declining to stand for re-election or becoming a
    full-time employee of the Company or a subsidiary of the
    Company, all unvested options granted under the Plan
    automatically expire and are not exercisable, and all
    unexercised options continue to be exercisable until their
    stated expiration date. In the event of death or disability of
    an optionee while the optionee is a director, the
    then-outstanding options of such optionee become exercisable for
    two years from the date of the death or disability. All unvested
    options automatically vest and become non-forfeitable as of the
    date of death or disability and become exercisable for two years
    from the date of the death of the optionee or until the stated
    expiration date, whichever is earlier. In the event of the
    termination of
    
    146
 
    an optionees service as a director by the Board of
    Directors for cause or the failure of such director to be
    re-elected, the administrator of the plan in its sole discretion
    can cancel the then-outstanding options of such optionee,
    including options that have vested and such options
    automatically expire and become non-exercisable on the effective
    date of such termination.
 
    The remainder of the information called for by this item will be
    contained in our definitive Proxy Statement to be distributed in
    connection with our 2011 annual meeting of shareholders under
    the caption Share Ownership of Management and Principal
    Shareholders and is incorporated into this document by
    reference.
 
     | 
     | 
    | 
    ITEM 13.  
 | 
    
    CERTAIN
    RELATIONSHIPS AND RELATED TRANSACTIONS AND DIRECTOR
    INDEPENDENCE
 | 
 
    The information called for by this item will be contained in our
    definitive Proxy Statement to be distributed in connection with
    our 2011 annual meeting of shareholders under the caption
    Certain Relationships and Related
    Transactions and is incorporated into this document by
    reference.
 
     | 
     | 
    | 
    ITEM 14.  
 | 
    
    PRINCIPAL
    ACCOUNTING FEES AND SERVICES
 | 
 
    The information called for by this item will be contained in our
    definitive Proxy Statement to be distributed in connection with
    our 2011 annual meeting of shareholders under the caption
    Principal Accounting Fees and Services and is
    incorporated into this document by reference.
    
    147
 
 
 
    PART IV
 
     | 
     | 
    | 
    ITEM 15.  
 | 
    
    EXHIBITS,
    FINANCIAL STATEMENT SCHEDULE
 | 
 
    (a) The following documents are filed as part of this
    report:
 
    (1) Financial Statements
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Page No.
 | 
 
 | 
|  
 | 
| 
 
    Consolidated Balance Sheets as of December 31, 2010 and 2009
 
 | 
 
 | 
 
 | 
    65
 | 
 
 | 
| 
 
    Consolidated Statements of Income (Loss) for the Years Ended
    December 31, 2010, 2009 and 2008
 
 | 
 
 | 
 
 | 
    66
 | 
 
 | 
| 
 
    Consolidated Statements of Cash Flows for the Years Ended
    December 31, 2010, 2009 and 2008
 
 | 
 
 | 
 
 | 
    67
 | 
 
 | 
| 
 
    Consolidated Statements of Changes in Equity for the Years Ended
    December 31, 2010, 2009 and 2008
 
 | 
 
 | 
 
 | 
    68
 | 
 
 | 
 
    (2) Financial Statement Schedules
 
 
    All other supplemental schedules are omitted because of the
    absence of the conditions under which they would be required or
    because the required information is included in the financial
    statements or related notes.
 
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
| 
    Exhibit No.
 | 
 
 | 
    Description
 | 
|  
 | 
| 
 
 | 
    2
 | 
    .1
 | 
 
 | 
    Agreement and Plan of Merger among Nabors Industries, Inc.,
    Nabors Acquisition Corp. VIII, Nabors Industries Ltd. and Nabors
    US Holdings Inc. (incorporated by reference to Annex I to the
    proxy statement/prospectus included in our Registration
    Statement on Form S-4 (File No. 333-76198) filed with
    the SEC on May 10, 2002, as amended).
 | 
| 
 
 | 
    2
 | 
    .2
 | 
 
 | 
    Asset Purchase Agreement dated July 20, 2007, by and among
    Nabors US Finance LLC, Nabors Well Services Co. (inclusive of
    its Sea Mar Division), Sea Mar Management LLC and Hornbeck
    Offshore Services, Inc. (incorporated by reference to Exhibit
    2.5 to our Form 10-Q (File No. 001-32657) filed with the SEC on
    August 2, 2007).
 | 
| 
 
 | 
    2
 | 
    .3
 | 
 
 | 
    Agreement and Plan of Merger, by and among Nabors Industries
    Ltd., Diamond Acquisition Corp., and Superior, dated as of
    August 6, 2010 (incorporated by reference to Exhibit 2.2 to our
    Form 8-K (File No. 001-32657) filed with the SEC on August 9,
    2010).
 | 
| 
 
 | 
    3
 | 
    .1
 | 
 
 | 
    Memorandum of Association of Nabors Industries Ltd.
    (incorporated by reference to Annex II to the proxy
    statement/prospectus included in our Registration Statement on
    Form S-4 (File No. 333-76198) filed with the SEC on
    May 10, 2002, as amended).
 | 
| 
 
 | 
    3
 | 
    .2
 | 
 
 | 
    Amended and Restated Bye-Laws of Nabors Industries Ltd.
    (incorporated by reference to Exhibit 4.2 to our Form 10-Q (File
    No. 000-49887) filed with the SEC on August 3, 2005).
 | 
| 
 
 | 
    3
 | 
    .2(a)
 | 
 
 | 
    Amendment to Amended and Restated Bye-Laws of Nabors Industries
    Ltd. (incorporated by reference to Exhibit A of our Proxy
    Statement (File No. 001-32657) filed with the SEC on February
    24, 2006).
 | 
| 
 
 | 
    3
 | 
    .3
 | 
 
 | 
    Form of Resolutions of our Board of Directors authorizing the
    issue of the Special Voting Preferred Share (incorporated by
    reference to Exhibit 3.3 to our Post-Effective Amendment No. 1
    to Registration Statement on Form S-3 (File No. 333-85228-99)
    filed with the Commission on June 11, 2002).
 | 
| 
 
 | 
    4
 | 
    .1
 | 
 
 | 
    Indenture, dated August 22, 2002, among Nabors Industries, Inc.,
    as issuer, Nabors Industries Ltd., as guarantor, and Bank One,
    N.A., with respect to Nabors Industries, Inc.s Series A
    and Series B 5.375% Senior Notes due 2012 (incorporated by
    reference to Exhibit 4.1 to Nabors Industries, Inc.s
    Registration Statement on Form S-4 (File No. 333-10049201) filed
    with the SEC on October 11, 2002).
 | 
    
    148
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
| 
    Exhibit No.
 | 
 
 | 
    Description
 | 
|  
 | 
| 
 
 | 
    4
 | 
    .2
 | 
 
 | 
    Purchase Agreement, dated May 18, 2006, among Nabors Industries,
    Inc., Nabors Industries Ltd., Citigroup Global Markets Inc. and
    Lehman Brothers Inc., with respect to Nabors Industries,
    Inc.s 0.94% Senior Exchangeable Notes due 2011
    (incorporated by reference to Exhibit 4.1 to our Form 8-K (File
    No. 001-32657) filed with the SEC on May 24, 2006).
 | 
| 
 
 | 
    4
 | 
    .2(a)
 | 
 
 | 
    Indenture, dated as of May 23, 2006, among Nabors Industries,
    Inc., Nabors Industries Ltd. and Wells Fargo Bank, National
    Association, as trustee, with respect to Nabors Industries,
    Inc.s 0.94% Senior Exchangeable Notes due 2011
    (including form of 0.94% Senior Exchangeable Note due 2011)
    (incorporated by reference to Exhibit 4.2 to our Form 8-K (File
    No. 001-32657) filed with the SEC on May 24, 2006).
 | 
| 
 
 | 
    4
 | 
    .2(b)
 | 
 
 | 
    Registration Rights Agreement, dated as of May 23, 2006, among
    Nabors Industries, Inc., Nabors Industries Ltd., Citigroup
    Global Markets Inc. and Lehman Brothers Inc., with respect to
    Nabors Industries, Inc.s 0.94% Senior Exchangeable
    Notes due 2011 (incorporated by reference to Exhibit 4.3 to our
    Form 8-K (File No. 001-32657) filed with the SEC on May 24,
    2006).
 | 
| 
 
 | 
    4
 | 
    .3
 | 
 
 | 
    Purchase Agreement, dated February 14, 2008, among Nabors
    Industries, Inc., Nabors Industries Ltd., Citigroup Global
    Markets Inc. and UBS Securities LLC, with respect to Nabors
    Industries, Inc.s 6.15% Senior Notes due 2018
    (incorporated by reference to Exhibit 4.1 to our Form 8-K (File
    No. 001-32657) filed with the SEC on February 25, 2008).
 | 
| 
 
 | 
    4
 | 
    .3(a)
 | 
 
 | 
    Indenture, dated February 20, 2008, among Nabors Industries,
    Inc., Nabors Industries Ltd. and Wells Fargo Bank, National
    Association, as trustee, with respect to Nabors Industries,
    Inc.s 6.15% Senior Notes due 2018 (including form of
    6.15% Senior Note due 2018) (incorporated by reference to
    Exhibit 4.2 to our Form 8-K (File No. 001-32657) filed with the
    SEC on February 25, 2008).
 | 
| 
 
 | 
    4
 | 
    .3(b)
 | 
 
 | 
    Registration Rights Agreement, dated as of February 20, 2008,
    among Nabors Industries, Inc., Nabors Industries, Ltd.,
    Citigroup Global Markets Inc. and UBS Securities LLC, with
    respect to Nabors Industries, Inc.s 6.15% Senior
    Notes due 2018 (incorporated by reference to Exhibit 4.3 to our
    Form 8-K (File No. 001-32657) filed with the SEC on February 25,
    2008).
 | 
| 
 
 | 
    4
 | 
    .4
 | 
 
 | 
    Purchase Agreement, dated July 17, 2008, among Nabors
    Industries, Inc., Nabors Industries, Ltd., Citigroup Global
    Markets Inc. and UBS Securities LLC, with respect to Nabors
    Industries, Inc.s 6.15% Senior Notes due 2018
    (incorporated by reference to Exhibit 4.1 to our Form 8-K (File
    No. 001-32657) filed with the SEC on July 23, 2008).
 | 
| 
 
 | 
    4
 | 
    .4(a)
 | 
 
 | 
    Registration Rights Agreement, dated July 22, 2008, among Nabors
    Industries, Inc., Nabors Industries, Ltd., Citigroup Global
    Markets Inc. and UBS Securities LLC, with respect to Nabors
    Industries, Inc.s 6.15% Senior Notes due 2018
    (incorporated by reference to Exhibit 4.2 to our Form 8-K (File
    No. 001-32657) filed with the SEC on July 23, 2008).
 | 
| 
 
 | 
    4
 | 
    .5
 | 
 
 | 
    Purchase Agreement, dated January 7, 2009, among Nabors
    Industries, Inc., Nabors Industries Ltd., Goldman, Sachs &
    Co., UBS Securities LLC, Citigroup Global Markets Inc., Deutsche
    Bank Securities Inc., Howard Weil Incorporated, J.P. Morgan
    Securities Inc., Morgan Stanley & Co. Incorporated, Tudor,
    Pickering, Holt & Co. Securities, Inc. and Wells Fargo
    Securities, LLC, with respect to Nabors Industries, Inc.s
    9.25% Senior Notes due 2019 (incorporated by reference to
    Exhibit 4.1 to our Form 8-K (File No. 001-32657) filed with the
    SEC on January 14, 2009).
 | 
| 
 
 | 
    4
 | 
    .5(a)
 | 
 
 | 
    Indenture related to the Senior Notes due 2019, dated as of
    January 12, 2009, among Nabors Industries, Inc., Nabors
    Industries Ltd. and Wells Fargo Bank, National Association, as
    trustee, with respect to Nabors Industries, Inc.s
    9.25% Senior Notes due 2019 (including form of
    9.25% Senior Note due 2019) (incorporated by reference to
    Exhibit 4.2 to Nabors Industries Ltd.s Form 8-K (File No.
    001-32657) filed with the Commission on January 14, 2009).
 | 
    149
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
| 
    Exhibit No.
 | 
 
 | 
    Description
 | 
|  
 | 
| 
 
 | 
    4
 | 
    .5(b)
 | 
 
 | 
    Registration Rights Agreement, dated as of January 12, 2009,
    among Nabors Industries, Inc., Nabors Industries Ltd., Goldman,
    Sachs & Co., UBS Securities LLC, Citigroup Global Markets
    Inc., Deutsche Bank Securities Inc., Howard Weil Incorporated,
    J.P. Morgan Securities Inc., Morgan Stanley & Co.
    Incorporated, Tudor, Pickering, Holt & Co. Securities, Inc.
    and Wells Fargo Securities, LLC, with respect to Nabors
    Industries, Inc.s 9.25% Senior Notes due 2019
    (incorporated by reference to Exhibit 4.2 to our Form 8-K (File
    No. 001-32657) filed with the SEC on January 14, 2009).
 | 
| 
 
 | 
    4
 | 
    .6
 | 
 
 | 
    Purchase Agreement, dated September 9, 2010, among Nabors
    Industries, Inc., Nabors Industries Ltd., UBS Securities LLC,
    Citigroup Global Markets Inc., Deutsche Bank Securities Inc.,
    Mizuho Securities USA Inc., Banc of America Securities LLC,
    Morgan Stanley & Co. Incorporated, HSBC Securities (USA)
    Inc., PNC Capital Markets LLC and Scotia Capital (USA) Inc.
    (incorporated by reference to Exhibit 4.1 to our Form 8-K (File
    No. 001-32657) filed with the SEC on September 15, 2010).
 | 
| 
 
 | 
    4
 | 
    .6(a)
 | 
 
 | 
    Indenture related to the 5.0% Senior Notes due 2020, dated
    as of September 14, 2010, among Nabors Industries, Inc., Nabors
    Industries Ltd., Wilmington Trust Company, as trustee and
    Citibank, N.A. as securities administrator (including form of
    5.0% Senior Note due 2020) (incorporated by reference to
    Exhibit 4.2 to our Form 8-K (File No. 001-32657) filed with the
    SEC on September 15, 2010).
 | 
| 
 
 | 
    4
 | 
    .6(b)
 | 
 
 | 
    Registration Rights Agreement, dated as of September 14, 2010,
    among Nabors Industries, Inc., Nabors Industries Ltd., UBS
    Securities LLC, Citigroup Global Markets Inc., Deutsche Bank
    Securities Inc., Mizuho Securities USA Inc., Banc of America
    Securities LLC, Morgan Stanley & Co. Incorporated, HSBC
    Securities (USA) Inc., PNC Capital Markets LLC and Scotia
    Capital (USA) Inc. (incorporated by reference to Exhibit 4.3 to
    our Form 8-K (File No. 001-32657) filed with the SEC on
    September 15, 2010).
 | 
| 
 
 | 
    4
 | 
    .7
 | 
 
 | 
    Tender and Voting Agreement, by and among Nabors Industries
    Ltd., Diamond Acquisition Corp, and certain Superior
    stockholders, dated as of August 6, 2010 (incorporated by
    reference to Exhibit 10.2 to our Form 8-K (File No. 001-32657)
    filed with the SEC on August 9, 2010).
 | 
| 
 
 | 
    10
 | 
    .1 (+)
 | 
 
 | 
    Executive Employment Agreement between Nabors Industries, Inc.,
    Nabors Industries Ltd. and Eugene M. Isenberg, dated as of April
    1, 2009 (incorporated by reference to Exhibit 10.1 to our Form
    8-K (File No. 001-32657) filed with the SEC on April 30, 2009).
 | 
| 
 
 | 
    10
 | 
    .1(a) (+)
 | 
 
 | 
    First Amendment to Executive Employment Agreement between Nabors
    Industries, Inc., Nabors Industries Ltd. and Eugene M. Isenberg,
    dated as of June 29, 2009 (incorporated by reference to Exhibit
    10.1 to our Form 8-K (File No. 001-32657) filed with the SEC on
    July 1, 2009).
 | 
| 
 
 | 
    10
 | 
    .1(b) (+)
 | 
 
 | 
    Second Amendment to Executive Employment Agreement between
    Nabors Industries, Inc., Nabors Industries Ltd. and Eugene M.
    Isenberg, dated as of December 28, 2009 (incorporated by
    reference to Exhibit 10.1 to our Form 8-K (File No. 001-32657)
    filed with the SEC on December 28, 2009).
 | 
| 
 
 | 
    10
 | 
    .2 (+)
 | 
 
 | 
    Executive Employment Agreement between Nabors Industries, Inc.,
    Nabors Industries Ltd. and Anthony G. Petrello, dated as of
    April 1, 2009 (incorporated by reference to Exhibit 10.2 to our
    Form 8-K (File No. 001-32657) filed with the SEC on April 30,
    2009).
 | 
| 
 
 | 
    10
 | 
    .2(a) (+)
 | 
 
 | 
    First Amendment to Executive Employment Agreement between Nabors
    Industries, Inc., Nabors Industries Ltd. and Anthony G.
    Petrello, dated as of June 29, 2009 (incorporated by reference
    to Exhibit 10.2 to our Form 8-K (File No. 001-32657) filed with
    the SEC on July 1, 2009).
 | 
| 
 
 | 
    10
 | 
    .2(b) (+)
 | 
 
 | 
    Second Amendment to Executive Employment Agreement between
    Nabors Industries, Inc., Nabors Industries Ltd. and Anthony G.
    Petrello, dated as of December 28, 2009 (incorporated by
    reference to Exhibit 10.2 to our Form 8-K (File No. 001-32657)
    filed with the SEC on December 28, 2009).
 | 
| 
 
 | 
    10
 | 
    .2(c) (+)
 | 
 
 | 
    Employment Agreement effective October 1, 1996, among Nabors
    Industries, Inc. and Anthony G. Petrello (incorporated by
    reference to Exhibit 10.8 to our Form 10-Q (File No. 1-9245)
    filed May 16, 1997).
 | 
| 
 
 | 
    10
 | 
    .3
 | 
 
 | 
    Form of Indemnification Agreement entered into between Nabors
    Industries Ltd. and the directors and executive officers
    identified in the schedule thereto (incorporated by reference to
    Exhibit 10.28 to our Form 10-K (File No. 000-49887) filed with
    the SEC on March 31, 2003).
 | 
    150
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
| 
    Exhibit No.
 | 
 
 | 
    Description
 | 
|  
 | 
| 
 
 | 
    10
 | 
    .4 (+)
 | 
 
 | 
    Form of Stock Option Agreement  Isenberg/Petrello
    (incorporated by reference to Exhibit 10.03 to our Form 8-K
    (File No. 000-49887) filed with the SEC on March 2, 2005).
 | 
| 
 
 | 
    10
 | 
    .5 (+)
 | 
 
 | 
    Form of Stock Option Agreement  Others (incorporated
    by reference to Exhibit 10.04 to our Form 8-K (File No.
    000-49887) filed with the SEC on March 2, 2005).
 | 
| 
 
 | 
    10
 | 
    .6 (+)
 | 
 
 | 
    2003 Employee Stock Plan (incorporated by reference to Annex D
    of our Proxy Statement (File No. 000-49887) filed with
    the SEC on May 8, 2003).
 | 
| 
 
 | 
    10
 | 
    .6(a) (+)
 | 
 
 | 
    First Amendment to 2003 Employee Stock Plan (incorporated by
    reference to Exhibit 4.1 to our Form 10-Q (File No. 000-49887)
    filed with the SEC on August 3, 2005).
 | 
| 
 
 | 
    10
 | 
    .6(b) (+)
 | 
 
 | 
    Amended and Restated 2003 Employee Stock Plan (incorporated by
    reference to Exhibit A of our Proxy Statement (File No.
    001-32657) filed with the SEC on May 4, 2006).
 | 
| 
 
 | 
    10
 | 
    .6(c) (+)
 | 
 
 | 
    Nabors Industries Ltd. Amended and Restated 2003 Employee Stock
    Plan (incorporated by reference to Exhibit A of Nabors
    Industries Ltd.s Revised Definitive Proxy Statement on
    Schedule 14A (File No. 001-32657) filed with the Commission on
    May 4, 2006) (incorporated by reference to Exhibit 99.1 to our
    Form S-8 filed with the SEC on November 12, 2008.
 | 
| 
 
 | 
    10
 | 
    .7(+)
 | 
 
 | 
    1996 Employee Stock Plan (incorporated by reference to Nabors
    Industries Inc.s Registration Statement on Form S-8 (File
    No. 333-11313) filed with the SEC on September 3, 1996).
 | 
| 
 
 | 
    10
 | 
    .8 (+)
 | 
 
 | 
    Nabors Industries, Inc. 1997 Executive Officers Incentive Stock
    Plan (incorporated by reference to Exhibit 10.20 to Nabors
    Industries Inc.s Form 10-K (File No. 1-9245) filed with
    the SEC on December 29, 1997).
 | 
| 
 
 | 
    10
 | 
    .9 (+)
 | 
 
 | 
    Nabors Industries, Inc. 1998 Employee Stock Plan (incorporated
    by reference to Exhibit 10.19 to Nabors Industries Inc.s
    Form 10-K (File No. 1-9245) filed with the SEC on March 31,
    1999).
 | 
| 
 
 | 
    10
 | 
    .10 (+)
 | 
 
 | 
    Nabors Industries, Inc. 1999 Stock Option Plan for Non-Employee
    Directors (incorporated by reference to Exhibit 10.21 to Nabors
    Industries Inc.s Form 10-K (File No. 1-9245) filed with
    the SEC March 31, 1999).
 | 
| 
 
 | 
    10
 | 
    .10(a) (+)
 | 
 
 | 
    Amendment to Nabors Industries, Inc. 1999 Stock Option Plan for
    Non-Employee Directors (incorporated by reference to Exhibit
    10.19 to Nabors Industries Inc.s Form 10-K (File No.
    1-09245)
    filed with the SEC on March 19, 2002).
 | 
| 
 
 | 
    10
 | 
    .10(b) (+)
 | 
 
 | 
    Amended and Restated 1999 Stock Option Plan for Non-Employee
    Directors (amended on May 2, 2003) (incorporated by reference to
    Exhibit 10.29 to our Form 10-Q (File No. 000-49887) filed with
    the SEC on May 12, 2003).
 | 
| 
 
 | 
    10
 | 
    .11
 | 
 
 | 
    Purchase and Sale Agreement (Red River) by and among
    El Paso Production Company and El Paso Production GOM
    Inc., jointly and severally as Seller and Ramshorn Investments,
    Inc., as Purchaser dated October 8, 2003 (incorporated by
    reference to Exhibit 10.23 to our Form 10-K (File No. 000-49887)
    filed with the SEC on March 15, 2004).
 | 
| 
 
 | 
    10
 | 
    .12
 | 
 
 | 
    Purchase and Sale Agreement (USA) between El Paso
    Production Oil & Gas USA, L.P., as Seller and Ramshorn
    Investments, Inc., as Purchaser dated October 8, 2003
    (incorporated by reference to Exhibit 10.24 to our Form 10-K
    (File No. 000-49887) filed with the SEC on March 15, 2004).
 | 
| 
 
 | 
    10
 | 
    .13
 | 
 
 | 
    Credit Agreement, dated as of September 7, 2010, among Nabors
    Industries, Inc., as borrower, Nabors Industries Ltd., as
    guarantor, UBS Securities LLC, Citibank, N.A., Deutsche Bank AG
    New York Branch and Mizuho Corporate Bank (USA), as joint lead
    arrangers and joint bookrunners, UBS Securities LLC, as
    documentation agent and syndication agent, UBS AG, Stamford
    Branch, as administrative agent, the lenders party thereto from
    time to time and UBS Loan Finance, LLC, as swingline lender
    (incorporated by reference to Exhibit 10.1 to our Form 8-K (File
    No. 001-32657) filed with the SEC on September 7, 2010).
 | 
| 
 
 | 
    12
 | 
 
 | 
 
 | 
    Computation of Ratios. *
 | 
| 
 
 | 
    14
 | 
 
 | 
 
 | 
    Code of Business Conduct (incorporated by reference to Exhibit
    14 to our Form 10-K (File No. 000-49887) filed with the SEC on
    March 15, 2004).
 | 
    151
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
| 
    Exhibit No.
 | 
 
 | 
    Description
 | 
|  
 | 
| 
 
 | 
    18
 | 
 
 | 
 
 | 
    Preference Letter of Independent Accountants Regarding Change in
    Accounting Principle (incorporated by reference to Exhibit 18 to
    our Form 10-Q (File No. 000-49887) filed with the SEC on
    November 2, 2005).
 | 
| 
 
 | 
    21
 | 
 
 | 
 
 | 
    Significant Subsidiaries*
 | 
| 
 
 | 
    23
 | 
    .1
 | 
 
 | 
    Consent of Independent Registered Public Accounting
    Firm  PricewaterhouseCoopers LLP  Houston.
    *
 | 
| 
 
 | 
    23
 | 
    .2
 | 
 
 | 
    Consent of Independent Auditors  Ernst & Young
    LLC  Houston. *
 | 
| 
 
 | 
    23
 | 
    .3
 | 
 
 | 
    Consent of Miller and Lents, Ltd.*
 | 
| 
 
 | 
    23
 | 
    .4
 | 
 
 | 
    Consent of Netherland, Sewell & Associates, Inc.*
 | 
| 
 
 | 
    23
 | 
    .5
 | 
 
 | 
    Consent of AJM Petroleum Consultants*
 | 
| 
 
 | 
    23
 | 
    .6
 | 
 
 | 
    Consent of Lonquist & Co., LLC*
 | 
| 
 
 | 
    23
 | 
    .7
 | 
 
 | 
    Consent of Miller and Lents, Ltd.- NFR Energy LLC*
 | 
| 
 
 | 
    31
 | 
    .1
 | 
 
 | 
    Rule 13a-14(a)/15d-14(a) Certification of Eugene M. Isenberg,
    Chairman and Chief Executive Officer*
 | 
| 
 
 | 
    31
 | 
    .2
 | 
 
 | 
    Rule 13a-14(a)/15d-14(a) Certification of R. Clark Wood,
    principal accounting and financial officer*
 | 
| 
 
 | 
    32
 | 
    .1
 | 
 
 | 
    Certifications required by Rule 13a-14(b) or Rule 15d-14(b) and
    Section 1350 of Chapter 63 of Title 18 of the United States Code
    (18 U.S.C. 1350), executed by Eugene M. Isenberg, Chairman
    and Chief Executive Officer and R. Clark Wood, principal
    accounting and financial officer (furnished herewith).
 | 
| 
 
 | 
    99
 | 
    .1
 | 
 
 | 
    Report of Miller and Lents, Ltd.*
 | 
| 
 
 | 
    99
 | 
    .2
 | 
 
 | 
    Report of Netherland, Sewell & Associates, Inc.*
 | 
| 
 
 | 
    99
 | 
    .3
 | 
 
 | 
    Report of AJM Petroleum Consultants*
 | 
| 
 
 | 
    99
 | 
    .4
 | 
 
 | 
    Report of Lonquist & Co., LLC*
 | 
| 
 
 | 
    99
 | 
    .5
 | 
 
 | 
    Report of Miller and Lents, Ltd.  NFR Energy LLC*
 | 
| 
 
 | 
    99
 | 
    .6
 | 
 
 | 
    Financial Statements and Notes for NFR Energy LLC*
 | 
 
 
 
     | 
     | 
     | 
    | 
    (+)  | 
     | 
    
    Management contract or compensatory plan or arrangement. | 
    152
 
    SIGNATURES
 
    Pursuant to the requirements of Section 13 or 15(d) of the
    Securities Exchange Act of 1934, the registrant has duly caused
    this report to be signed on its behalf by the undersigned,
    thereunto duly authorized.
 
    NABORS INDUSTRIES LTD.
 
     | 
     | 
     | 
    |   | 
        By: 
 | 
    
     /s/  Eugene
    M. Isenberg 
 | 
    Eugene M. Isenberg
    Chairman and
    Chief Executive Officer
 
    R. Clark Wood
    Principal accounting and
    financial officer
 
    Date: March 1, 2011
 
    Pursuant to the requirements of the Securities Exchange Act of
    1934, this report has been signed below by the following persons
    on behalf of the registrant and in the capacities and on the
    dates indicated.
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
    Signature
 | 
 
 | 
    Title
 | 
 
 | 
    Date
 | 
|  
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
     /s/  Eugene
    M. Isenberg  
    Eugene
    M. Isenberg
 | 
 
 | 
    Chairman and Chief Executive Officer
 | 
 
 | 
    March 1, 2011
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
     /s/  Anthony
    G. Petrello  
    Anthony
    G. Petrello
 | 
 
 | 
    Deputy Chairman, President and Chief Operating Officer
 | 
 
 | 
    March 1, 2011
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
     /s/  R.
    Clark Wood  
    R.
    Clark Wood
 | 
 
 | 
    Principal accounting officer and principal financial officer
 | 
 
 | 
    March 1, 2011
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
     /s/  William
    T. Comfort  
    William
    T. Comfort
 | 
 
 | 
    Director
 | 
 
 | 
    March 1, 2011
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
     /s/  John
    V. Lombardi  
    John
    V. Lombardi
 | 
 
 | 
    Director
 | 
 
 | 
    March 1, 2011
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
     /s/  James
    L. Payne  
    James
    L. Payne
 | 
 
 | 
    Director
 | 
 
 | 
    March 1, 2011
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
     /s/  Myron
    M. Sheinfeld  
    Myron
    M. Sheinfeld
 | 
 
 | 
    Director
 | 
 
 | 
    March 1, 2011
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
     /s/  Martin
    J. Whitman  
    Martin
    J. Whitman
 | 
 
 | 
    Director
 | 
 
 | 
    March 1, 2011
 | 
| 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
     /s/  John
    Yearwood  
    John
    Yearwood
 | 
 
 | 
    Director
 | 
 
 | 
    March 1, 2011
 | 
    
    153
 
 
    SCHEDULE II 
    VALUATION AND QUALIFYING ACCOUNTS
 
    Years Ended December 31, 2010, 2009 and 2008
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
      | 	
| 
 
 | 
 
 | 
    Balance at 
    
 | 
 
 | 
 
 | 
    Charged to 
    
 | 
 
 | 
 
 | 
    Charged to 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    Balance at 
    
 | 
 
 | 
| 
 
 | 
 
 | 
    Beginning 
    
 | 
 
 | 
 
 | 
    Costs and 
    
 | 
 
 | 
 
 | 
    Other 
    
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    End of 
    
 | 
 
 | 
| 
 
 | 
 
 | 
    of Period
 | 
 
 | 
 
 | 
    Expenses
 | 
 
 | 
 
 | 
    Accounts
 | 
 
 | 
 
 | 
    Deductions
 | 
 
 | 
 
 | 
    Period
 | 
 
 | 
| 
 
 | 
 
 | 
    (In thousands)
 | 
 
 | 
|  
 | 
| 
 
    2010
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Allowance for doubtful accounts
 
 | 
 
 | 
    $
 | 
    23,681
 | 
 
 | 
 
 | 
    $
 | 
    1,545
 | 
 
 | 
 
 | 
    $
 | 
    167
 | 
 
 | 
 
 | 
    $
 | 
    (2,886
 | 
    )
 | 
 
 | 
    $
 | 
    22,507
 | 
 
 | 
| 
 
    Inventory reserve
 
 | 
 
 | 
 
 | 
    4,824
 | 
 
 | 
 
 | 
 
 | 
    (182
 | 
    )
 | 
 
 | 
 
 | 
    1,695
 | 
 
 | 
 
 | 
 
 | 
    447
 | 
 
 | 
 
 | 
 
 | 
    6,784
 | 
 
 | 
| 
 
    Valuation allowance on deferred tax assets
 
 | 
 
 | 
 
 | 
    1,570,890
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (56,737
 | 
    )
 | 
 
 | 
 
 | 
    1,514,153
 | 
 
 | 
| 
 
    2009
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Allowance for doubtful accounts
 
 | 
 
 | 
    $
 | 
    23,224
 | 
 
 | 
 
 | 
    $
 | 
    5,793
 | 
 
 | 
 
 | 
    $
 | 
    239
 | 
 
 | 
 
 | 
    $
 | 
    (5,575
 | 
    )
 | 
 
 | 
    $
 | 
    23,681
 | 
 
 | 
| 
 
    Inventory reserve
 
 | 
 
 | 
 
 | 
    4,483
 | 
 
 | 
 
 | 
 
 | 
    1,429
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (1,088
 | 
    )
 | 
 
 | 
 
 | 
    4,824
 | 
 
 | 
| 
 
    Valuation allowance on deferred tax assets
 
 | 
 
 | 
 
 | 
    132,262
 | 
 
 | 
 
 | 
 
 | 
    1,438,628
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    1,570,890
 | 
 
 | 
| 
 
    2008
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| 
 
    Allowance for doubtful accounts
 
 | 
 
 | 
    $
 | 
    16,713
 | 
 
 | 
 
 | 
    $
 | 
    6,715
 | 
 
 | 
 
 | 
    $
 | 
    1,241
 | 
 
 | 
 
 | 
    $
 | 
    (1,445
 | 
    )
 | 
 
 | 
    $
 | 
    23,224
 | 
 
 | 
| 
 
    Inventory reserve
 
 | 
 
 | 
 
 | 
    2,309
 | 
 
 | 
 
 | 
 
 | 
    4,573
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    (2,399
 | 
    )
 | 
 
 | 
 
 | 
    4,483
 | 
 
 | 
| 
 
    Valuation allowance on deferred tax assets
 
 | 
 
 | 
 
 | 
    29,658
 | 
 
 | 
 
 | 
 
 | 
    102,604
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    
 | 
 
 | 
 
 | 
 
 | 
    132,262
 | 
 
 | 
    
    154
 
    Exhibit Index
 
    |   | 	
      | 	
      | 	
      | 	
      | 	
| 
    Exhibits
 | 
 
 | 
    Description
 | 
|  
 | 
| 
 
 | 
    12
 | 
 
 | 
 
 | 
    Computation of Ratios.
 | 
| 
 
 | 
    21
 | 
 
 | 
 
 | 
    Significant Subsidiaries
 | 
| 
 
 | 
    23
 | 
    .1
 | 
 
 | 
    Consent of Independent Registered Public Accounting
    Firm  PricewaterhouseCoopers LLP  Houston.
 | 
| 
 
 | 
    23
 | 
    .2
 | 
 
 | 
    Consent of Independent Auditors  Ernst &
    Young LLC  Houston.
 | 
| 
 
 | 
    23
 | 
    .3
 | 
 
 | 
    Consent of Miller and Lents, Ltd.
 | 
| 
 
 | 
    23
 | 
    .4
 | 
 
 | 
    Consent of Netherland, Sewell & Associates, Inc.
 | 
| 
 
 | 
    23
 | 
    .5
 | 
 
 | 
    Consent of AJM Petroleum Consultants
 | 
| 
 
 | 
    23
 | 
    .6
 | 
 
 | 
    Consent of Lonquist & Co., LLC
 | 
| 
 
 | 
    23
 | 
    .7
 | 
 
 | 
    Consent of Miller and Lents, Ltd.  NFR Energy LLC
 | 
| 
 
 | 
    31
 | 
    .1
 | 
 
 | 
    Rule 13a-14(a)/15d-14(a)
    Certification of Eugene M. Isenberg, Chairman and Chief
    Executive Officer
 | 
| 
 
 | 
    31
 | 
    .2
 | 
 
 | 
    Rule 13a-14(a)/15d-14(a)
    Certification of R. Clark Wood, principal accounting and
    financial officer
 | 
| 
 
 | 
    99
 | 
    .1
 | 
 
 | 
    Report of Miller and Lents, Ltd.
 | 
| 
 
 | 
    99
 | 
    .2
 | 
 
 | 
    Report of Netherland, Sewell & Associates, Inc.
 | 
| 
 
 | 
    99
 | 
    .3
 | 
 
 | 
    Report of AJM Petroleum Consultants
 | 
| 
 
 | 
    99
 | 
    .4
 | 
 
 | 
    Report of Lonquist & Co., LLC
 | 
| 
 
 | 
    99
 | 
    .5
 | 
 
 | 
    Report of Miller and Lents, Ltd.  NFR Energy LLC
 | 
| 
 
 | 
    99
 | 
    .6
 | 
 
 | 
    Financial Statements and Notes for NFR Energy LLC
 | 
    
    155