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Marathon Petroleum Corp - Quarter Report: 2021 June (Form 10-Q)

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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 10-Q
(Mark One)
QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended June 30, 2021
OR
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from                      to                     
Commission file number 001-35054
Marathon Petroleum Corporation
(Exact name of registrant as specified in its charter)
    
Delaware 27-1284632
(State or other jurisdiction of incorporation or organization) (I.R.S. Employer Identification No.)
539 South Main Street, Findlay, Ohio 45840-3229
(Address of principal executive offices) (Zip code)
(419) 422-2121
(Registrant’s telephone number, including area code)
Securities registered pursuant to Section 12(b) of the Act
Title of each classTrading Symbol(s)Name of each exchange on which registered
Common Stock, par value $.01MPCNew York Stock Exchange
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      No  
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files.) Yes      No  
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.
Large Accelerated Filer          Accelerated Filer     Non-accelerated Filer      Smaller reporting company
Emerging growth company    
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act  
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act) Yes     No  
There were 638,202,178 shares of Marathon Petroleum Corporation common stock outstanding as of July 30, 2021.


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MARATHON PETROLEUM CORPORATION
FORM 10-Q
FOR THE QUARTERLY PERIOD ENDED JUNE 30, 2021
TABLE OF CONTENTS

 Page
Unless otherwise stated or the context otherwise indicates, all references in this Form 10-Q to “MPC,” “us,” “our,” “we” or “the Company” mean Marathon Petroleum Corporation and its consolidated subsidiaries.
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GLOSSARY OF TERMS
Throughout this report, the following company or industry specific terms and abbreviations are used:
ANSAlaska North Slope crude oil, an oil index benchmark price
ASCAccounting Standards Codification
ASUAccounting Standards Update
barrelOne stock tank barrel, or 42 United States gallons liquid volume, used in reference to crude oil or other liquid hydrocarbons
CBOBConventional Blending for Oxygenate Blending
EBITDA (a non-GAAP financial measure)Earnings Before Interest, Tax, Depreciation and Amortization
EPAUnited States Environmental Protection Agency
GAAPAccounting principles generally accepted in the United States
LA CARBCalifornia Air Resources Board
LA CARBOBCalifornia Reformulated Gasoline Blendstock for Oxygenate Blending
LCMLower of cost or market
LIFOLast in, first out, an inventory costing method
LLSLouisiana Light Sweet crude oil, an oil index benchmark price
mbpdThousand barrels per day
MEHMagellan East Houston crude oil, an oil index benchmark price
MMBtuOne million British thermal units, an energy measurement
NGLNatural gas liquids, such as ethane, propane, butanes and natural gasoline
NYMEXNew York Mercantile Exchange
OTCOver-the-Counter
PP&EProperty, plant and equipment
RINRenewable Identification Number
SECUnited States Securities and Exchange Commission
ULSDUltra-low sulfur diesel
USGCU.S. Gulf Coast
VIEVariable interest entity
WTIWest Texas Intermediate crude oil, an oil index benchmark price

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PART I – FINANCIAL INFORMATION
ITEM 1. FINANCIAL STATEMENTS

MARATHON PETROLEUM CORPORATION
CONSOLIDATED STATEMENTS OF INCOME (Unaudited)
Three Months Ended 
June 30,
Six Months Ended 
June 30,
(In millions, except per share data)2021202020212020
Revenues and other income:
Sales and other operating revenues$29,615 $12,195 $52,326 $34,399 
Income (loss) from equity method investments(a)
93 79 184 (1,154)
Net gain on disposal of assets— 
Other income119 24 196 47 
Total revenues and other income29,827 12,300 52,709 33,297 
Costs and expenses:
Cost of revenues (excludes items below)27,177 11,502 48,261 31,844 
LCM inventory valuation adjustment— (1,470)— 1,715 
Impairment expense— 25 — 7,847 
Depreciation and amortization871 833 1,715 1,696 
Selling, general and administrative expenses625 665 1,200 1,407 
Other taxes189 170 351 368 
Total costs and expenses28,862 11,725 51,527 44,877 
Income (loss) from continuing operations965 575 1,182 (11,580)
Net interest and other financial costs372 341 725 673 
Income (loss) from continuing operations before income taxes593 234 457 (12,253)
Provision (benefit) for income taxes on continuing operations150 39 (1,801)
Income (loss) from continuing operations, net of tax588 84 418 (10,452)
Income from discontinued operations, net of tax8,214 192 8,448 510 
Net income (loss)8,802 276 8,866 (9,942)
Less net income (loss) attributable to:
Redeemable noncontrolling interest21 21 41 41 
Noncontrolling interests269 246 555 (758)
Net income (loss) attributable to MPC$8,512 $$8,270 $(9,225)
Per share data (See Note 9)
Basic:
Continuing operations$0.46 $(0.28)$(0.27)$(15.00)
Discontinued operations12.63 0.29 12.98 0.79 
Net income (loss) per share$13.09 $0.01 $12.71 $(14.21)
Weighted average shares outstanding650 650 651 649 
Diluted:
Continuing operations$0.45 $(0.28)$(0.27)$(15.00)
Discontinued operations12.55 0.29 12.98 0.79 
Net income (loss) per share$13.00 $0.01 $12.71 $(14.21)
Weighted average shares outstanding654 650 651 649 
(a) The three and six months ended June 30, 2021 and the six months ended June 30, 2020 includes impairment expense. See Note 6 for further information.
The accompanying notes are an integral part of these consolidated financial statements.
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MARATHON PETROLEUM CORPORATION
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited)
Three Months Ended 
June 30,
Six Months Ended 
June 30,
(Millions of dollars)2021202020212020
Net income (loss)$8,802 $276 $8,866 $(9,942)
Other comprehensive income (loss):
Defined benefit plans:
Actuarial changes, net of tax of $61, $—, $64 and $1, respectively
183 (1)192 
Prior service, net of tax of $(2), $(3), $(5) and $(6), respectively
(8)(8)(16)(17)
Other, net of tax of $(2), $(1), $(2) and $(1), respectively
(4)(1)(4)(2)
Other comprehensive income (loss)171 (10)172 (16)
Comprehensive income (loss)8,973 266 9,038 (9,958)
Less comprehensive income (loss) attributable to:
Redeemable noncontrolling interest21 21 41 41 
Noncontrolling interests269 246 555 (758)
Comprehensive income (loss) attributable to MPC$8,683 $(1)$8,442 $(9,241)
The accompanying notes are an integral part of these consolidated financial statements.
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MARATHON PETROLEUM CORPORATION
CONSOLIDATED BALANCE SHEETS (Unaudited)
(Millions of dollars, except share data)June 30,
2021
December 31,
2020
Assets
Current assets:
Cash and cash equivalents$11,839 $415 
Short-term investments5,418 — 
Receivables, less allowance for doubtful accounts of $44 and $18, respectively
9,771 5,760 
Inventories8,879 7,999 
Other current assets2,685 2,724 
Assets held for sale— 11,389 
Total current assets38,592 28,287 
Equity method investments5,424 5,422 
Property, plant and equipment, net37,996 39,035 
Goodwill8,256 8,256 
Right of use assets1,500 1,521 
Other noncurrent assets2,532 2,637 
Total assets$94,300 $85,158 
Liabilities
Current liabilities:
Accounts payable$12,170 $7,803 
Payroll and benefits payable651 732 
Accrued taxes5,219 1,105 
Debt due within one year70 2,854 
Operating lease liabilities473 497 
Other current liabilities929 822 
Liabilities held for sale— 1,850 
Total current liabilities19,512 15,663 
Long-term debt28,250 28,730 
Deferred income taxes5,704 6,203 
Defined benefit postretirement plan obligations1,850 2,121 
Long-term operating lease liabilities1,020 1,014 
Deferred credits and other liabilities1,271 1,207 
Total liabilities57,607 54,938 
Commitments and contingencies (see Note 24)
Redeemable noncontrolling interest968 968 
Equity
MPC stockholders’ equity:
Preferred stock, no shares issued and outstanding (par value $0.01 per share, 30 million shares authorized)
— — 
Common stock:
Issued – 983 million and 980 million shares (par value $0.01 per share, 2 billion shares authorized)
10 10 
Held in treasury, at cost – 345 million and 329 million shares
(16,147)(15,157)
Additional paid-in capital33,238 33,208 
Retained earnings12,160 4,650 
Accumulated other comprehensive loss(340)(512)
Total MPC stockholders’ equity28,921 22,199 
Noncontrolling interests6,804 7,053 
Total equity35,725 29,252 
Total liabilities, redeemable noncontrolling interest and equity$94,300 $85,158 
The accompanying notes are an integral part of these consolidated financial statements.
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MARATHON PETROLEUM CORPORATION
CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)
 Six Months Ended 
June 30,
(Millions of dollars)20212020
Operating activities:
Net income (loss)$8,866 $(9,942)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Amortization of deferred financing costs and debt discount41 30 
Impairment expense— 7,847 
Depreciation and amortization1,715 1,696 
LCM inventory valuation adjustment— 1,715 
Pension and other postretirement benefits, net(34)102 
Deferred income taxes(49)(529)
Net gain on disposal of assets(3)(5)
(Income) loss from equity method investments(184)1,154 
Distributions from equity method investments303 275 
Income from discontinued operations(8,448)(510)
Changes in income tax receivable20 (1,150)
Net recognized (gains) losses on investments and derivatives(1)23 
Changes in operating assets and liabilities, net of effects of businesses acquired:
Current receivables(3,947)3,095 
Inventories(880)415 
Current accounts payable and accrued liabilities4,477 (5,188)
Right of use assets and operating lease liabilities, net— 
All other, net(79)(48)
Cash provided by (used in) operating activities - continuing operations1,801 (1,020)
Cash provided by operating activities - discontinued operations33 790 
Net cash provided by (used in) operating activities1,834 (230)
Investing activities:
Additions to property, plant and equipment(606)(1,696)
Disposal of assets81 58 
Investments – acquisitions and contributions(113)(383)
 – redemptions, repayments and return of capital118 
Purchases of short-term investments(5,417)— 
All other, net220 19 
Cash used in investing activities - continuing operations(5,832)(1,884)
Cash provided by (used in) investing activities - discontinued operations21,235 (193)
Net cash provided by (used in) investing activities15,403 (2,077)
Financing activities:
Commercial paper – issued7,414 — 
                              – repayments(8,437)— 
Long-term debt – borrowings10,775 9,672 
                          – repayments(13,056)(6,388)
Debt issuance costs— (24)
Issuance of common stock53 
Common stock repurchased(984)— 
Dividends paid(760)(755)
Distributions to noncontrolling interests(613)(620)
Repurchases of noncontrolling interests(310)— 
All other, net(36)(20)
Net cash provided by (used in) financing activities(5,954)1,871 
Net change in cash, cash equivalents and restricted cash$11,283 $(436)

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MARATHON PETROLEUM CORPORATION
CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)
 Six Months Ended 
June 30,
(Millions of dollars)20212020
Cash, cash equivalents and restricted cash balances:
Continuing operations - beginning of period$416 $1,395 
Discontinued operations - beginning of period(a)
140 134 
Less: Discontinued operations - end of period(a)
— 127 
Continuing operations - end of period$11,839 $966 
(a)Reported as assets held for sale on our consolidated balance sheets.

The accompanying notes are an integral part of these consolidated financial statements.


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MARATHON PETROLEUM CORPORATION
CONSOLIDATED STATEMENTS OF EQUITY AND REDEEMBALE NONCONTROLLING INTEREST
(Unaudited)
 MPC Stockholders’ Equity 
Common StockTreasury StockAdditional Paid-in CapitalRetained EarningsAccumulated Other Comprehensive Income (Loss)Non-controlling InterestsTotal EquityRedeemable Non-controlling Interest
(Shares in millions;
amounts in millions of dollars)
SharesAmountSharesAmount
Balance as of December 31, 2020980 $10 (329)$(15,157)$33,208 $4,650 $(512)$7,053 $29,252 $968 
Net income (loss)— — — — — (242)— 286 44 20 
Dividends declared on common stock ($0.58 per share)
— — — — — (379)— — (379)— 
Distributions to noncontrolling interests— — — — — — — (300)(300)(20)
Other comprehensive income— — — — — — — — 
Stock based compensation— — (1)18 — — — 17 — 
Equity transactions of MPLX— — — — (4)— — (120)(124)— 
Balance as of March 31, 2021981 $10 (329)$(15,158)$33,222 $4,029 $(511)$6,919 $28,511 $968 
Net income— — — — — 8,512 — 269 8,781 21 
Dividends declared on common stock ($0.58 per share)
— — — — — (381)— — (381)— 
Distributions to noncontrolling interests— — — — — — — (272)(272)(21)
Other comprehensive income— — — — — — 171 — 171 — 
Shares repurchased— — (16)(984)— — — — (984)— 
Stock based compensation— — (5)50 — — 47 — 
Equity transactions of MPLX— — — — (34)— — (114)(148)— 
Balance as of June 30, 2021983 $10 (345)$(16,147)$33,238 $12,160 $(340)$6,804 $35,725 $968 

 MPC Stockholders’ Equity 
Common StockTreasury StockAdditional Paid-in CapitalRetained EarningsAccumulated Other Comprehensive Income (Loss)Non-controlling InterestsTotal EquityRedeemable Non-controlling Interest
(Shares in millions;
amounts in millions of dollars)
SharesAmountSharesAmount
Balance as of December 31, 2019978 $10 (329)$(15,143)$33,157 $15,990 $(320)$8,445 $42,139 $968 
Net income (loss)— — — — — (9,234)— (1,004)(10,238)20 
Dividends declared on common stock ($0.58 per share)
— — — — — (377)— — (377)— 
Distributions to noncontrolling interests— — — — — — — (300)(300)(20)
Other comprehensive loss— — — — — — (6)— (6)— 
Stock based compensation— — (2)17 — — 16 — 
Equity transactions of MPLX— — — — (5)— — (2)(7)— 
Other— — — — — — — — 
Balance as of March 31, 2020979 $10 (329)$(15,145)$33,169 $6,380 $(326)$7,140 $31,228 $968 
Net income— — — — — — 246 255 21 
Dividends declared on common stock ($0.58 per share)
— — — — — (380)— — (380)— 
Distributions to noncontrolling interests— — — — — — — (279)(279)(21)
Other comprehensive loss— — — — — — (10)— (10)— 
Stock based compensation— — — (4)31 — — 30 — 
Equity transactions of MPLX— — — — — — (2)— 
Other— — — — — (1)— — (1)— 
Balance as of June 30, 2020979 $10 (329)$(15,149)$33,208 $6,008 $(336)$7,108 $30,849 $968 
The accompanying notes are an integral part of these consolidated financial statements.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)
1. DESCRIPTION OF THE BUSINESS AND BASIS OF PRESENTATION
Description of the Business
We are a leading, integrated, downstream energy company headquartered in Findlay, Ohio. We operate the nation's largest refining system. We sell refined products to wholesale marketing customers domestically and internationally, to buyers on the spot market and to independent entrepreneurs who operate branded outlets. We also sell transportation fuel to consumers through direct dealer locations under long-term supply contracts. MPC’s midstream operations are primarily conducted through MPLX LP (“MPLX”), which owns and operates crude oil and light product transportation and logistics infrastructure as well as gathering, processing and fractionation assets. We own the general partner and a majority limited partner interest in MPLX.
On May 14, 2021, we completed the sale of Speedway, our company-owned and operated retail transportation fuel and convenience store business, to 7-Eleven, Inc. (“7-Eleven”). Speedway’s results are reported separately as discontinued operations, net of tax, in our consolidated statements of income for all periods presented and its assets and liabilities are presented in our consolidated balance sheets as assets and liabilities held for sale as of December 31, 2020. In addition, we separately disclosed the operating and investing cash flows of Speedway as discontinued operations within our consolidated statements of cash flow. See Note 4 for discontinued operations disclosures.
Basis of Presentation
All significant intercompany transactions and accounts have been eliminated.
These interim consolidated financial statements are unaudited; however, in the opinion of our management, these statements reflect all adjustments necessary for a fair statement of the results for the periods reported. All such adjustments are of a normal, recurring nature unless otherwise disclosed. These interim consolidated financial statements, including the notes, have been prepared in accordance with the rules of the SEC applicable to interim period financial statements and do not include all of the information and disclosures required by GAAP for complete financial statements.
These interim consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2020. The results of operations for the three and six months ended June 30, 2021 are not necessarily indicative of the results to be expected for the full year.
In accordance with ASC 205, Discontinued Operations, intersegment sales from our Refining & Marketing segment to Speedway are no longer eliminated as intercompany transactions and are now presented within sales and other operating revenue, since we continue to supply fuel to Speedway subsequent to the sale to 7-Eleven. All periods presented have been retrospectively adjusted through the sale date of May 14, 2021 to reflect this change. Additionally, beginning August 2, 2020, in accordance with ASC 360, Property, Plant, and Equipment, we ceased recording depreciation and amortization for Speedway’s property, plant and equipment, finite-lived intangible assets and right of use lease assets.
During the second quarter of 2021, we invested a significant portion of the Speedway sale proceeds in investment grade debt, commercial paper and certificates of deposit with maturities greater than three months. As a result, we have updated our accounting policies for short-term investments and fair value as disclosed below:
Short-Term Investments
Investments with a maturity date greater than three months that we intend to convert to cash or cash equivalents within a year or less are classified as short-term investments in our consolidated balance sheets. Additionally, in accordance with ASC 320, Investments - Debt Securities, we have classified all short-term investments as of June 30, 2021 as available-for-sale securities and changes in fair market value are reported in other comprehensive income.
Fair Value
We account for certain assets and liabilities at fair value. The hierarchy below lists three levels of fair value based on the extent to which inputs used in measuring fair value are observable in the market. We categorize each of our fair value measurements in one of these three levels based on the lowest level input that is significant to the fair value measurement in its entirety. These levels are:
Level 1 – inputs are based upon unadjusted quoted prices for identical instruments in active markets. Our Level 1 derivative assets and liabilities include exchange-traded contracts for crude oil and refined products measured at fair value with a market approach using the close-of-day settlement prices for the market. Commodity derivatives are covered under master netting agreements with an unconditional right to offset. Collateral deposits in futures
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commission merchant accounts covered by master netting agreements related to Level 1 commodity derivatives are classified as Level 1.
Level 2 – inputs are based upon quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-based valuation techniques for which all significant inputs are observable in the market or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Where applicable, these models project future cash flows and discount the future amounts to a present value using market-based observable inputs including interest rate curves, credit spreads, and forward and spot prices for currencies. Our Level 2 investments include commercial paper, certificates of deposit, time deposits and corporate notes and bonds. Our Level 2 derivative assets and liabilities primarily include certain OTC contracts.
Level 3 – inputs are generally unobservable and typically reflect management’s estimates of assumptions that market participants would use in pricing the asset or liability. The fair values are therefore determined using model-based techniques, including option pricing models and discounted cash flow models. Our Level 3 assets and liabilities include goodwill, long-lived assets and intangible assets, when they are recorded at fair value due to an impairment charge and an embedded derivative liability relates to a natural gas purchase agreement embedded in a keep‑whole processing agreement. The fair value calculation for these Level 3 instruments at June 30, 2021 used significant unobservable inputs including: (1) NGL prices interpolated and extrapolated due to inactive markets ranging from $0.64 to $1.59 per gallon with a weighted average of $0.81 per gallon and (2) the probability of renewal of 100 percent for the first and second five-year term of the natural gas purchase agreement and the related keep-whole processing agreement. Increases or decreases in the fractionation spread result in an increase or decrease in the fair value of the embedded derivative liability. Unobservable inputs used in the models are significant to the fair values of the assets and liabilities.
2. ACCOUNTING STANDARDS
Recently Adopted
We adopted the following ASU during the first six months of 2021, which did not have a material impact to our financial statements or financial statement disclosures:
ASUEffective Date
2019-12Income Taxes (Topic 740): Simplifying the Accounting for Income TaxesJanuary 1, 2021
3. SHORT-TERM INVESTMENTS
Investments Components
The components of investments were as follows:
June 30, 2021
(In millions)Fair Value LevelAmortized CostUnrealized GainsUnrealized LossesFair ValueCash and Cash EquivalentsShort-term Investments
Available-for-sale debt securities
Commercial paperLevel 2$8,378 $— $— $8,378 $3,907 $4,471 
Certificates of deposit and time depositsLevel 24,501 — — 4,501 3,625 876 
U.S. government securitiesLevel 150 — — 50 50 — 
Corporate notes and bondsLevel 2248 — — 248 177 71 
Total available-for-sale debt securities$13,177 $— $— $13,177 $7,759 $5,418 
Cash4,080 4,080 — 
Total$17,257 $11,839 $5,418 
Our investment policy includes concentration limits and credit rating requirements which limits our investments to high quality, short term and highly liquid securities.
Unrealized losses on debt investments held from May 14, 2021 to June 30, 2021 were not material. Realized gains/losses were not material. All of our available-for-sale debt securities held as of June 30, 2021 mature within one year or less.
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4. DISCONTINUED OPERATIONS
On May 14, 2021, we completed the sale of Speedway, our company-owned and operated retail transportation fuel and convenience store business, to 7-Eleven for cash proceeds of approximately $21.38 billion. After-tax proceeds were approximately $17.22 billion. This transaction resulted in a pretax gain of $11.68 billion ($8.02 billion after income taxes) after deducting the book value of the net assets and certain other adjustments.
The Speedway sale gain is accounted for as a discrete item within the discontinued operations income tax provision and includes a current tax provision of $4.16 billion and a deferred income tax benefit of $497 million due to the reversal of MPC’s deferred tax liabilities related to Speedway.
The proceeds and related Speedway sale gain may be adjusted in future periods based on provisions of the purchase and sale agreement that allow for adjustments of working capital amounts and other miscellaneous items subsequent to transaction closing date of May 14, 2021.
Results of operations for Speedway are reflected through the close of the sale. The following table presents Speedway results and the gain on sale as reported in income from discontinued operations, net of tax, within our consolidated statements of income.
Three Months Ended 
June 30,
Six Months Ended 
June 30,
(In millions)2021202020212020
Revenues, other income and net gain on disposal of assets:
Revenues and other income$3,081 $4,147 $8,420 $9,706 
Net gain on disposal of assets11,682 — 11,682 
Total revenues, other income and net gain on disposal of assets14,763 4,147 20,102 9,707 
Costs and expenses:
Cost of revenues (excludes items below)2,748 3,524 7,654 8,480 
LCM inventory valuation adjustment— (10)— 25 
Depreciation and amortization102 201 
Selling, general and administrative expenses48 81 121 160 
Other taxes24 44 75 97 
Total costs and expenses2,821 3,741 7,853 8,963 
Income from operations11,942 406 12,249 744 
Net interest and other financial costs10 
Income before income taxes11,940 402 12,243 734 
Provision for income taxes3,726 210 3,795 224 
Income from discontinued operations, net of tax$8,214 $192 $8,448 $510 
Separation Agreements
We have entered into various 15-year fuel supply agreements through which we continue to supply fuel to Speedway.
5. MASTER LIMITED PARTNERSHIP
We own the general partner and a majority limited partner interest in MPLX, which owns and operates crude oil and light product transportation and logistics infrastructure as well as gathering, processing and fractionation assets. We control MPLX through our ownership of the general partner interest and, as of June 30, 2021, we owned approximately 63 percent of the outstanding MPLX common units.
Unit Repurchase Program
On November 2, 2020, MPLX announced its board authorized a unit repurchase program for the repurchase of up to $1 billion of MPLX’s outstanding common units held by the public.
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During the six months ended June 30, 2021, 11,929,998 MPLX common units were repurchased at an average cost per unit of $26.02. Total cash paid for units repurchased during the six months ended June 30, 2021 was $310 million. As of June 30, 2021, MPLX had agreements to acquire 126,293 additional common units for $4 million, which settled in early July 2021. As of June 30, 2021, $657 million remained available under the authorization for future unit repurchases.
MPLX may utilize various methods to effect the repurchases, which could include open market repurchases, negotiated block transactions, tender offers, accelerated unit repurchases or open market solicitations for units, some of which may be effected through Rule 10b5-1 plans. The timing and amount of repurchases will depend upon several factors, including market and business conditions, and repurchases may be initiated, suspended or discontinued at any time. The repurchase authorization has no expiration date.
Agreements
We have various long-term, fee-based commercial agreements with MPLX. Under these agreements, MPLX provides transportation, storage, distribution and marketing services to us. With certain exceptions, these agreements generally contain minimum volume commitments. These transactions are eliminated in consolidation but are reflected as intersegment transactions between our Refining & Marketing and Midstream segments. We also have agreements with MPLX that establish fees for operational and management services provided between us and MPLX and for executive management services and certain general and administrative services provided by us to MPLX. These transactions are eliminated in consolidation but are reflected as intersegment transactions between our Corporate and Midstream segments.
Noncontrolling Interest
As a result of equity transactions of MPLX, we are required to adjust non-controlling interest and additional paid-in capital. Changes in MPC’s additional paid-in capital resulting from changes in its ownership interests in MPLX were as follows:
Six Months Ended 
June 30,
(In millions)20212020
Increase (decrease) due to issuance/(repurchase) of MPLX common units$(76)$
Tax impact38 (1)
Increase (decrease) in MPC's additional paid-in capital, net of tax$(38)$
6. IMPAIRMENTS
In the second quarter of 2021, we recognized impairment expense within our Midstream segment related to the anticipated divestiture and closure of certain assets as detailed in the table below.
During the first quarter of 2020, the outbreak of COVID-19 caused overall deterioration in the economy and the environment in which we operate. The related changes to our expected future cash flows, as well as a sustained decrease in share price, were considered triggering events requiring the performance of various tests of the carrying values of our assets. Triggering events requiring the performance of various tests of the carrying value of our Midstream assets were also identified by MPLX as a result of the overall deterioration in the economy and the environment in which MPLX and its customers operate, which led to a reduction in forecasted volumes processed by the systems operated by MarkWest Utica EMG, L.L.C., MPLX’s equity method investee, as well as a sustained decrease in the MPLX unit price.
The table below provides information related to the impairments recognized, along with the location of these impairments within consolidated statement of income.
Three Months Ended 
June 30,
Six Months Ended 
June 30,
(In millions)Income Statement Line2021202020212020
GoodwillImpairment expense$— $— $— $7,330 
Equity method investmentsIncome (loss) from equity method investments13 — 13 1,315 
Long-lived assetsImpairment expense— 25 — 517 
Long-lived assetsDepreciation and amortization43 — 43 — 
Total impairments$56 $25 $56 $9,162 
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Goodwill
During the first quarter of 2020, we recorded an impairment of goodwill of $7.33 billion. The $5.516 billion goodwill impairment within the Refining & Marketing segment was primarily driven by the effects of COVID-19 and the decline in commodity prices. The $1.814 billion impairment within the Midstream segment was primarily driven by additional information related to the slowing of drilling activity, which had reduced production growth forecasts from MPLX’s producer customers. The fair values of the reporting units for the first quarter of 2020 goodwill impairment analysis were determined based on applying both a discounted cash flow method, or income approach, as well as a market approach.
Equity Method Investments
During the first quarter of 2020, we recorded equity method investment impairment charges totaling $1.315 billion, of which $1.25 billion related to MarkWest Utica EMG, L.L.C. and its investment in Ohio Gathering Company, L.L.C. The impairments were largely due to a reduction in forecasted volumes gathered and processed by the systems operated by the equity method investments. The fair value of the investments was determined based upon applying the discounted cash flow method, an income approach.
Long-lived Assets
During the first quarter of 2020, we identified long-lived asset impairment triggers relating to all of our refinery asset groups within the Refining & Marketing segment as a result of decreases to the Refining & Marketing segment expected future cash flows. The cash flows associated with these assets were significantly impacted by the effects of COVID-19 and commodity price declines. We performed recoverability tests for each refinery asset group by comparing the undiscounted estimated pretax cash flows to the carrying value of each asset group. Only the Gallup refinery’s carrying value exceeded its undiscounted estimated pretax cash flows. It was determined that the fair value of the Gallup refinery’s property, plant and equipment was less than the carrying value. As a result, we recorded a charge of $142 million in the first quarter of 2020 to impairment expense on the consolidated statements of income.
During the first quarter of 2020, we identified an impairment trigger relating to asset groups within MPLX’s Western Gathering and Processing (“G&P”) reporting unit as a result of significant changes to expected future cash flows for these asset groups resulting from the effects of COVID-19. The cash flows associated with these assets were significantly impacted by volume declines reflecting decreased forecasted producer customer production as a result of lower commodity prices. We assessed each asset group within the Western G&P reporting unit for impairment. It was determined that the fair value of the East Texas G&P asset group’s underlying assets were less than the carrying value. As a result, MPLX recorded impairment charges totaling $350 million related to its property, plant and equipment and intangibles, which are included in impairment expense on our consolidated statements of income.
Fair values of property, plant and equipment were determined using a combination of income and cost approaches. The income approach utilized significant assumptions including management’s best estimates of the expected future cash flows and the estimated useful life of the asset groups. The cost approach utilized assumptions for the current replacement costs of similar assets adjusted for estimated depreciation and deterioration of the existing equipment and economic obsolescence. The fair value of the intangibles was determined based on applying the multi-period excess earnings method, which is an income approach.
7. VARIABLE INTEREST ENTITIES
Consolidated VIE
We control MPLX through our ownership of its general partner. MPLX is a VIE because the limited partners do not have substantive kick-out or participating rights over the general partner. We are the primary beneficiary of MPLX because in addition to our significant economic interest, we also have the ability, through our ownership of the general partner, to control the decisions that most significantly impact MPLX. We therefore consolidate MPLX and record a noncontrolling interest for the interest owned by the public. We also record a redeemable noncontrolling interest related to MPLX’s Series A preferred units.
The creditors of MPLX do not have recourse to MPC’s general credit through guarantees or other financial arrangements, except as noted. MPC has effectively guaranteed certain indebtedness of LOOP LLC (“LOOP”) and LOCAP LLC (“LOCAP”), in which MPLX holds an interest. See Note 24 for more information. The assets of MPLX can only be used to settle their own obligations and their creditors have no recourse to our assets, except as noted earlier.
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The following table presents balance sheet information for the assets and liabilities of MPLX, which are included in our balance sheets.
(In millions)June 30,
2021
December 31,
2020
Assets
Cash and cash equivalents$$15 
Receivables, less allowance for doubtful accounts546 478 
Inventories126 118 
Other current assets46 67 
Assets held for sale— 188 
Equity method investments4,033 4,036 
Property, plant and equipment, net20,352 21,418 
Goodwill7,657 7,657 
Right of use assets297 309 
Other noncurrent assets958 1,006 
Liabilities
Accounts payable$495 $468 
Payroll and benefits payable
Accrued taxes83 76 
Debt due within one year764 
Operating lease liabilities63 63 
Liabilities held for sale— 101 
Other current liabilities298 297 
Long-term debt19,234 19,375 
Deferred income taxes11 12 
Long-term operating lease liabilities232 244 
Deferred credits and other liabilities507 437 
8. RELATED PARTY TRANSACTIONS
Transactions with related parties were as follows:
Three Months Ended 
June 30,
Six Months Ended 
June 30,
(In millions)2021202020212020
Sales to related parties$11 $20 $54 $50 
Purchases from related parties219 158 422 353 
Sales to related parties, which are included in sales and other operating revenues, consist primarily of refined product sales to certain of our equity affiliates.
Purchases from related parties are included in cost of revenues. We obtain utilities, transportation services and purchase ethanol from certain of our equity affiliates.
9. EARNINGS (LOSS) PER SHARE
We compute basic earnings (loss) per share by dividing net income (loss) attributable to MPC less income allocated to participating securities by the weighted average number of shares of common stock outstanding. Since MPC grants certain incentive compensation awards to employees and non-employee directors that are considered to be participating securities, we have calculated our earnings (loss) per share using the two-class method. Diluted income (loss) per share assumes exercise of certain stock-based compensation awards, provided the effect is not anti-dilutive.
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Three Months Ended 
June 30,
Six Months Ended 
June 30,
(In millions, except per share data)2021202020212020
Income (loss) from continuing operations, net of tax$588 $84 $418 $(10,452)
Less: Net income (loss) attributable to noncontrolling interest290 267 596 (717)
 Net income allocated to participating securities— — — — 
Income (loss) from continuing operations available to common stockholders298 (183)(178)(9,735)
Income from discontinued operations, net of tax8,214 192 8,448 510 
Income (loss) available to common stockholders$8,512 $$8,270 $(9,225)
Weighted average common shares outstanding:
Basic650 650 651 649 
Effect of dilutive securities— — — 
Diluted654 650 651 649 
Income (loss) available to common stockholders per share:
Basic:
Continuing operations$0.46 $(0.28)$(0.27)$(15.00)
Discontinued operations12.63 0.29 12.98 0.79 
Net income (loss) per share$13.09 $0.01 $12.71 $(14.21)
Diluted:
Continuing operations$0.45 $(0.28)$(0.27)$(15.00)
Discontinued operations12.55 0.29 12.98 0.79 
Net income (loss) per share$13.00 $0.01 $12.71 $(14.21)
The following table summarizes the shares that were anti-dilutive and, therefore, were excluded from the diluted share calculation.
Three Months Ended 
June 30,
Six Months Ended 
June 30,
(In millions)2021202020212020
Shares issuable under stock-based compensation plans11 
10. EQUITY
In connection with the Speedway sale, our board of directors approved an additional $7.1 billion share repurchase authorization bringing total share repurchase authorizations to $10.0 billion prior to the June tender of shares discussed below. The authorization has no expiration date.
We may utilize various methods to effect the repurchases, which could include open market repurchases, negotiated block transactions, tender offers, accelerated share repurchases or open market solicitations for shares, some of which may be effected through Rule 10b5-1 plans. The timing and amount of future repurchases, if any, will depend upon several factors, including market and business conditions, and such repurchases may be discontinued at any time.
On June 15, 2021, MPC completed a modified Dutch auction tender offer, purchasing 15,573,365 shares of its common stock at a purchase price of $63.00 per share, for an aggregate purchase price of approximately $981 million, excluding fees and expenses related to the tender offer. As of June 30, 2021, MPC has $9.02 billion remaining under its share repurchase authorizations.
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11. SEGMENT INFORMATION
We have two reportable segments: Refining & Marketing and Midstream. Each of these segments is organized and managed based upon the nature of the products and services it offers.
Refining & Marketing – refines crude oil and other feedstocks at our refineries in the Gulf Coast, Mid-Continent and West Coast regions of the United States, purchases refined products and ethanol for resale and distributes refined products through transportation, storage, distribution and marketing services provided largely by our Midstream segment. We sell refined products to wholesale marketing customers domestically and internationally, to buyers on the spot market and to independent entrepreneurs who operate primarily Marathon® branded outlets, through long-term fuel supply contracts with direct dealers who operate locations mainly under the ARCO® brand.
Midstream – transports, stores, distributes and markets crude oil and refined products principally for the Refining & Marketing segment via refining logistics assets, pipelines, terminals, towboats and barges; gathers, processes and transports natural gas; and gathers, transports, fractionates, stores and markets NGLs. The Midstream segment primarily reflects the results of MPLX.
Segment income represents income (loss) from operations attributable to the reportable segments. Corporate consists primarily of MPC’s corporate administrative expenses and costs related to certain non-operating assets, except for corporate overhead expenses attributable to MPLX, which are included in the Midstream segment. In addition, certain items that affect comparability (as determined by the chief operating decision maker (“CODM”)) are not allocated to the reportable segments. Assets by segment are not a measure used to assess the performance of the company by the CODM and thus are not reported in our disclosures.

The following reconciles segment income (loss) from operations to income (loss) from continuing operations before income taxes as reported in the consolidated statements of income:
Three Months Ended 
June 30,
Six Months Ended 
June 30,
(In millions)2021202020212020
Refining & Marketing$224 $(1,544)$(374)$(2,041)
Midstream977 869 1,949 1,774 
Segment income (loss) from operations1,201 (675)1,575 (267)
Corporate(180)(195)(337)(428)
Items not allocated to segments:
Transaction-related costs(a)
— — — (8)
Impairments(b)
(56)(25)(56)(9,162)
LCM inventory valuation adjustment— 1,470 — (1,715)
Income (loss) from continuing operations965 575 1,182 (11,580)
Net interest and other financial costs372 341 725 673 
Income (loss) from continuing operations before income taxes$593 $234 $457 $(12,253)
(a)Includes costs incurred in connection with the Midstream strategic review. Costs incurred in connection with the Speedway separation are included in discontinued operations. See Note 4.
(b)Includes impairment of goodwill, equity method investments and long lived assets. See Note 6 for additional information.
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The following reconciles segment depreciation and amortization to total depreciation and amortization as reported in the consolidated statements of income:
Three Months Ended 
June 30,
Six Months Ended 
June 30,
(In millions)2021202020212020
Refining & Marketing$466 $463 $944 $936 
Midstream331 330 665 675 
Segment depreciation and amortization797 793 1,609 1,611 
Corporate74 40 106 85 
Total depreciation and amortization$871 $833 $1,715 $1,696 

The following reconciles segment revenues to sales and other operating revenues as reported in the consolidated statements of income:
Three Months Ended 
June 30,
Six Months Ended 
June 30,
(In millions)2021202020212020
Refining & Marketing
Revenues from external customers(a)
$28,554 $11,387 $50,215 $32,671 
Intersegment revenues30 58 29 
Refining & Marketing segment revenues28,584 11,391 50,273 32,700 
Midstream
Revenues from external customers(a)
1,061 808 2,111 1,728 
Intersegment revenues1,248 1,165 2,447 2,406 
Midstream segment revenues2,309 1,973 4,558 4,134 
Total segment revenues30,893 13,364 54,831 36,834 
Less: intersegment revenues1,278 1,169 2,505 2,435 
Sales and other operating revenues$29,615 $12,195 $52,326 $34,399 
(a)Includes Refining & Marketing intercompany sales to Speedway prior to May 14, 2021 and related party sales. See Notes 4 and 8 for additional information.

The following reconciles segment capital expenditures and investments to total capital expenditures:
Three Months Ended 
June 30,
Six Months Ended 
June 30,
(In millions)2021202020212020
Refining & Marketing$176 $271 $310 $741 
Midstream178 425 316 899 
Segment capital expenditures and investments354 696 626 1,640 
Less investments in equity method investees62 214 113 383 
Plus:
Corporate23 18 44 45 
Capitalized interest16 27 30 56 
Total capital expenditures(a)
$331 $527 $587 $1,358 
(a)Includes changes in capital expenditure accruals. See Note 21 for a reconciliation of total capital expenditures to additions to property, plant and equipment for the six months ended June 30, 2021 and 2020 as reported in the consolidated statements of cash flows.

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12. NET INTEREST AND OTHER FINANCIAL COSTS
Net interest and other financial costs were as follows:
Three Months Ended 
June 30,
Six Months Ended 
June 30,
(In millions)2021202020212020
Interest income$(2)$(2)$(3)$(8)
Interest expense337 371 688 726 
Interest capitalized(19)(34)(36)(71)
Pension and other postretirement non-service costs(a)
56 (1)56 (4)
Other financial costs— 20 30 
Net interest and other financial costs$372 $341 $725 $673 
(a)See Note 23.
13. INCOME TAXES
We recorded a combined federal, state and foreign income tax provision of $5 million and $39 million for the three and six months ended June 30, 2021, respectively, which was lower than the tax computed at the U.S. statutory rate primarily due to permanent tax differences related to income attributable to noncontrolling interests.
We recorded a combined federal, state and foreign income tax provision of $150 million for the three months ended June 30, 2020, which was higher than the tax computed at the U.S. statutory rate primarily due to impacts attributable to noncontrolling interests, state taxes and the tax rate differential resulting from the expected net operating loss (“NOL”) carryback provided under the Coronavirus Aid, Relief, and Economic Security Act (“CARES Act”). We recorded a combined federal, state and foreign income tax benefit of $1,801 million for the six months ended June 30, 2020, which was lower than the tax computed at the U.S. statutory rate primarily due to a significant amount of our pre-tax loss consisting of non-tax deductible goodwill impairment charges, partially offset by the tax rate differential resulting from the expected NOL carryback provided under the CARES Act. Additionally, our non-controlling interest in MPLX generally provides an effective tax rate benefit since the tax associated with those ownership interests is paid by those interests, but this benefit was lower for the six months ended June 30, 2020 due to impairment charges recorded by MPLX.
A reconciliation of the continuing operations tax provision (benefit) in dollars as determined using the federal statutory income tax rate applied to income (loss) before income taxes to the provision (benefit) for income taxes is shown in the table below.
Three Months Ended 
June 30,
Six Months Ended 
June 30,
(In millions)2021202020212020
Tax computed at statutory rate $125 $49 $96 $(2,573)
State and local income taxes, net of federal income tax effects13 28 22 (216)
Goodwill impairment— — — 1,157 
Noncontrolling interests(100)43 (69)144 
Legislation(a)
(23)18 (17)(325)
Unrecognized tax benefits— 16 — 
Other(12)12 (9)12 
Total provision (benefit) for income tax from continuing operations$$150 $39 $(1,801)
(a)2020 reflects the impact of the CARES Act.
On March 27, 2020, the CARES Act was enacted by Congress and signed into law by President Trump in response to the COVID-19 pandemic. The CARES Act contained a NOL carryback provision, which allowed MPC to carryback our 2020 taxable loss to 2015 and later years. The five-year NOL carryback is available for all businesses producing taxable losses in 2018 through 2020 when tax was previously paid in the carryback years. As provided by the NOL carryback statute in the CARES Act, as of June 30, 2021, we have recorded an income tax receivable of $2.1 billion in other current assets. This reflects our estimate of the refund of previously paid tax and we expect to receive nearly all of the refund during the second half of 2021. We are working with the Internal Revenue Service (“IRS”) to facilitate the refund, but we do not control the timing of this payment.
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14. INVENTORIES
(In millions)June 30,
2021
December 31,
2020
Crude oil $2,780 $2,588 
Refined products5,178 4,478 
Materials and supplies921 933 
Total$8,879 $7,999 
Inventories are carried at the lower of cost or market value. Costs of crude oil and refined products are aggregated on a consolidated basis for purposes of assessing whether the LIFO cost basis of these inventories may have to be written down to market values.
15. PROPERTY, PLANT AND EQUIPMENT
June 30, 2021December 31, 2020
(In millions)Gross
PP&E
Accumulated DepreciationNet
PP&E
Gross
PP&E
Accumulated DepreciationNet
PP&E
Refining & Marketing$30,573 $14,086 $16,487 $30,306 $13,257 $17,049 
Midstream27,832 6,820 21,012 27,677 6,217 21,460 
Corporate1,389 892 497 1,356 830 526 
Total$59,794 $21,798 $37,996 $59,339 $20,304 $39,035 
16. RESTRUCTURING
During the third quarter of 2020, we indefinitely idled our refinery located in Gallup, New Mexico and initiated actions to strategically reposition our Martinez, California refinery to a renewable diesel facility. We also approved an involuntary workforce reduction plan. In connection with these strategic actions, we recorded restructuring expenses of $367 million in 2020.
The indefinite idling of the Gallup refinery and actions to strategically reposition the Martinez refinery to a renewable diesel facility resulted in $195 million of restructuring expenses. Of the $195 million of restructuring expenses, we expect $130 million to settle in cash for costs related to decommissioning refinery processing units and storage tanks and fulfilling environmental remediation obligations. Additionally, we recorded a non-cash reserve against our materials and supplies inventory at these facilities of $51 million.
The involuntary workforce reduction plan, together with employee reductions resulting from our actions affecting the Gallup and Martinez refineries, affected approximately 2,050 employees. We recorded $172 million of restructuring expenses for separation benefits payable under our employee separation plan and certain collective bargaining agreements that we have settled in cash. Certain of the affected MPC employees provided services to MPLX. MPLX has various employee services agreements and secondment agreements with MPC pursuant to which MPLX reimburses MPC for employee costs, along with the provision of operational and management services in support of MPLX’s operations. Pursuant to such agreements, MPC was reimbursed by MPLX for $37 million of the $172 million of restructuring expenses recorded for these actions.
Restructuring expenses were accrued as restructuring reserves within accounts payable, payroll and benefits payable, other current liabilities and deferred credits and other liabilities within our consolidated balance sheets. We expect cash payments for the remaining exit and disposal costs reserve to occur through 2024.
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(In millions)Employee separation costsExit and disposal costsTotal
Restructuring reserve balance at September 30, 2020(a)
$158 $133 $291 
Adjustments14 19 
Cash payments(134)(35)(169)
Restructuring reserve balance at December 31, 2020$38 $103 $141 
Cash payments(32)(16)(48)
Restructuring reserve balance at March 31, 2021$$87 $93 
Cash payments(5)(11)(16)
Restructuring reserve balance at June 30, 2021$$76 $77 
(a)The restructuring reserve was zero until the third quarter of 2020.
17. FAIR VALUE MEASUREMENTS
Fair Values—Recurring
The following tables present assets and liabilities accounted for at fair value on a recurring basis as of June 30, 2021 and December 31, 2020 by fair value hierarchy level. We have elected to offset the fair value amounts recognized for multiple derivative contracts executed with the same counterparty, including any related cash collateral as shown below; however, fair value amounts by hierarchy level are presented on a gross basis in the following tables.
June 30, 2021
Fair Value Hierarchy
(In millions)Level 1Level 2Level 3
Netting and Collateral(a)
Net Carrying Value on Balance Sheet(b)
Collateral Pledged Not Offset
Assets:
Commodity contracts$340 $$— $(336)$$74 
Liabilities:
Commodity contracts$376 $$— $(382)$— $— 
Embedded derivatives in commodity contracts— — 102 — 102 — 
December 31, 2020
Fair Value Hierarchy
(In millions)Level 1Level 2Level 3
Netting and Collateral(a)
Net Carrying Value on Balance Sheet(b)
Collateral Pledged Not Offset
Assets:
Commodity contracts$82 $$— $(80)$$31 
Liabilities:
Commodity contracts$81 $10 $— $(91)$— $— 
Embedded derivatives in commodity contracts— — 63 — 63 — 
(a)Represents the impact of netting assets, liabilities and cash collateral when a legal right of offset exists. As of June 30, 2021, cash collateral of $46 million was netted with the mark-to-market derivative liabilities. As of December 31, 2020, cash collateral of $11 million was netted with mark-to-market derivative liabilities.
(b)We have no derivative contracts that are subject to master netting arrangements reflected gross on the balance sheet.
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The following is a reconciliation of the beginning and ending balances recorded for net liabilities classified as Level 3 in the fair value hierarchy.
Three Months Ended 
June 30,
Six Months Ended 
June 30,
(In millions)2021202020212020
Beginning balance$66 $45 $63 $60 
Unrealized and realized (gains) losses included in net income39 45 (7)
Settlements of derivative instruments(3)(1)(6)(2)
Ending balance$102 $51 $102 $51 
The amount of total losses (gains) for the period included in earnings attributable to the change in unrealized losses (gains) relating to assets still held at the end of period:$39 $$41 $(7)
Fair Values – Reported
We believe the carrying value of our other financial instruments, including cash and cash equivalents, receivables, accounts payable and certain accrued liabilities, approximate fair value. Our fair value assessment incorporates a variety of considerations, including the short-term duration of the instruments and the expected insignificance of bad debt expense, which includes an evaluation of counterparty credit risk. The borrowings under our revolving credit facilities, which include variable interest rates, approximate fair value. The fair value of our fixed and floating rate long-term debt is based on prices from recent trade activity and is categorized in level 3 of the fair value hierarchy. The carrying and fair values of our debt were approximately $27.9 billion and $31.5 billion at June 30, 2021, respectively, and approximately $31.1 billion and $34.9 billion at December 31, 2020, respectively. These carrying and fair values of our debt exclude the unamortized issuance costs which are netted against our total debt.
18. DERIVATIVES
For further information regarding the fair value measurement of derivative instruments, including any effect of master netting agreements or collateral, see Note 17. We do not designate any of our commodity derivative instruments as hedges for accounting purposes.
Derivatives that are not designated as accounting hedges may include commodity derivatives used to hedge price risk on (1) inventories, (2) fixed price sales of refined products, (3) the acquisition of foreign-sourced crude oil, (4) the acquisition of ethanol for blending with refined products, (5) the sale of NGLs, (6) the purchase of natural gas and (7) the purchase of soybean oil.
The following table presents the fair value of derivative instruments as of June 30, 2021 and December 31, 2020 and the line items in the balance sheets in which the fair values are reflected. The fair value amounts below are presented on a gross basis and do not reflect the netting of asset and liability positions permitted under the terms of our master netting arrangements including cash collateral on deposit with, or received from, brokers. We offset the recognized fair value amounts for multiple derivative instruments executed with the same counterparty in our financial statements when a legal right of offset exists. As a result, the asset and liability amounts below will not agree with the amounts presented in our consolidated balance sheets.

(In millions)June 30, 2021December 31, 2020
Balance Sheet LocationAssetLiabilityAssetLiability
Commodity derivatives
Other current assets$341 $382 $88 $91 
Other current liabilities(a)
— 14 — 
Deferred credits and other liabilities(a)
— 88 — 56 
(a)     Includes embedded derivatives.
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The table below summarizes open commodity derivative contracts for crude oil, refined products and blending products as of June 30, 2021.
Percentage of contracts that expire next quarterPosition
(Units in thousands of barrels)LongShort
Exchange-traded(a)
Crude oil64.2%32,507 37,899 
Refined products87.6%19,615 23,055 
Blending products64.9%2,624 5,055 
Soybean oil92.8%1,702 1,838 
(a)    Included in exchange-traded are spread contracts in thousands of barrels: Crude oil - 60 long and 1,460 short; Refined products - 380 long and 210 short; Blending products - 135 short
The following table summarizes the effect of all commodity derivative instruments in our consolidated statements of income: 
Gain (Loss)
(In millions)Three Months Ended 
June 30,
Six Months Ended 
June 30,
Income Statement Location2021202020212020
Sales and other operating revenues$(5)$(7)$(15)$77 
Cost of revenues(168)(105)(233)26 
Total$(173)$(112)$(248)$103 
19. DEBT
Our outstanding borrowings at June 30, 2021 and December 31, 2020 consisted of the following:
(In millions)June 30,
2021
December 31,
2020
Marathon Petroleum Corporation:
Commercial paper$— $1,024 
Senior notes8,549 9,849 
Notes payable
Finance lease obligations602 634 
Total$9,152 $11,508 
MPLX LP:
Bank revolving credit facility— 175 
Senior notes19,600 20,350 
Finance lease obligations11 
Total$19,609 $20,536 
Total debt$28,761 $32,044 
Unamortized debt issuance costs(144)(154)
Unamortized (discount) premium, net(297)(306)
Amounts due within one year(70)(2,854)
Total long-term debt due after one year$28,250 $28,730 
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Available Capacity under our Credit Facilities as of June 30, 2021
(Dollars in millions)Total
Capacity
Outstanding
Borrowings
Outstanding
Letters
of Credit
Available
Capacity
Weighted
Average
Interest
Rate
Expiration
MPC, excluding MPLX
MPC bank revolving credit facility$5,000 $— $$4,999 — %October 2023
MPC trade receivables securitization facility100 — — 100 — July 2021
MPLX
MPLX bank revolving credit facility3,500 — — 3,500 — %July 2024
MPC 364-Day Bank Revolving Credit Facilities
In February 2021, we elected to terminate our $1 billion unsecured 364-day revolving credit facility due in April 2021. This facility provided us with additional liquidity and financial flexibility during the then ongoing commodity price and demand downturn. There were no borrowings under this credit facility, and we determined that the incremental borrowing capacity of the facility was no longer necessary. We do not intend to replace this facility. We incurred no early termination fees as a result of the early termination of this credit agreement.
Effective June 18, 2021, we terminated our $1 billion unsecured 364-day revolving credit facility due in September 2021. There were no borrowings under this credit facility, and we determined that the incremental borrowing capacity of the facility was no longer necessary.
Trade Receivables Securitization Facility
On June 23, 2021, we reduced the capacity under our trade receivables securitization facility from $750 million to $100 million as we determined the incremental borrowing capacity of the facility was no longer necessary. This facility expired on July 16, 2021.
MPC Senior Notes
On March 1, 2021, we repaid the $1 billion outstanding aggregate principal amount of 5.125% senior notes due March 2021.
In June 2021, all of the $300 million outstanding aggregate principal amount of 5.125% senior notes due April 2024, including the portion of such notes for which Andeavor was the obligor, were redeemed at a price equal to 100.854% of the principal amount.
MPLX Senior Notes
On January 15, 2021, MPLX redeemed all the $750 million outstanding aggregate principal amount of 5.250% senior notes due January 2025, including the portion of such notes issued by ANDX, at a price equal to 102.625% of the principal amount.
On August 4, 2021, MPLX announced the intent to provide notice of the redemption of all of the $1 billion outstanding aggregate principal amount of MPLX's LIBOR plus 1.100% per annum floating rate senior notes due September 9, 2022. The notes are expected to be redeemed on September 3, 2021, at a price equal to 100 percent of the principal amount thereof, plus accrued and unpaid interest to, but not including, the redemption date. MPLX expects to fund the redemption amount with a combination of cash on hand and borrowings under the MPLX credit agreement or the MPC intercompany loan agreement.
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20. REVENUE
The following table presents our revenues from external customers disaggregated by segment and product line.
Three Months Ended 
June 30,
Six Months Ended 
June 30,
(In millions)2021202020212020
Refining & Marketing:
Refined products$26,528 $10,268 $46,337 $30,537 
Crude oil1,866 1,003 3,312 1,878 
Services and other160 116 566 256 
Total revenues from external customers28,554 11,387 50,215 32,671 
Midstream:
Refined products304 123 586 294 
Services and other757 685 1,525 1,434 
Total revenues from external customers1,061 808 2,111 1,728 
Sales and other operating revenues$29,615 $12,195 $52,326 $34,399 
We do not disclose information on the future performance obligations for any contract with expected duration of one year or less at inception. As of June 30, 2021, we do not have future performance obligations that are material to future periods.
Receivables
On the accompanying consolidated balance sheets, receivables, less allowance for doubtful accounts primarily consists of customer receivables. Significant, non-customer balances included in our receivables at June 30, 2021 include matching buy/sell receivables of $3.84 billion.
21. SUPPLEMENTAL CASH FLOW INFORMATION
Six Months Ended 
June 30,
(In millions)20212020
Net cash provided by operating activities included:
Interest paid (net of amounts capitalized)$649 $601 
Net income taxes paid to taxing authorities(a)
319 
(a)Includes income tax payments related to continuing and discontinued operations.

(In millions)June 30,
2021
December 31,
2020
Cash and cash equivalents(a)
$11,839 $415 
Restricted cash(b)
— 
Cash, cash equivalents and restricted cash$11,839 $416 
(a)Excludes $140 million of cash at December 31, 2020, representing Speedway store cash, which was included in assets held for sale.
(b)The restricted cash balance is included within other current assets on the consolidated balance sheets.
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The consolidated statements of cash flows exclude changes to the consolidated balance sheets that did not affect cash. The following is a reconciliation of additions to property, plant and equipment to total capital expenditures:
Six Months Ended 
June 30,
(In millions)20212020
Additions to property, plant and equipment per the consolidated statements of cash flows$606 $1,696 
Decrease in capital accruals(19)(338)
Total capital expenditures$587 $1,358 
22. ACCUMULATED OTHER COMPREHENSIVE LOSS
The following table shows the changes in accumulated other comprehensive loss by component. Amounts in parentheses indicate debits.
(In millions)Pension BenefitsOther BenefitsGain on Cash Flow HedgeWorkers CompensationTotal
Balance as of December 31, 2019$(212)$(116)$$$(320)
Other comprehensive loss before reclassifications, net of tax of $(4)
(10)(2)— — (12)
Amounts reclassified from accumulated other comprehensive loss:
Amortization – prior service credit(a)
(23)— — — (23)
   – actuarial loss(a)
18 — — 19 
   – settlement loss(a)
— — — 
Other— — — (3)(3)
Tax effect— — 
Other comprehensive loss(13)(1)— (2)(16)
Balance as of June 30, 2020$(225)$(117)$$$(336)
(In millions)Pension BenefitsOther BenefitsGain on Cash Flow HedgeWorkers CompensationTotal
Balance as of December 31, 2020$(338)$(181)$$$(512)
Other comprehensive gain (loss) before reclassifications, net of tax of $44
132 — (4)129 
Amounts reclassified from accumulated other comprehensive loss:
Amortization – prior service credit(a)
(23)— — (22)
   – actuarial loss(a)
24 — — 29 
   – settlement loss(a)
49 — — — 49 
Tax effect(11)(2)— — (13)
Other comprehensive income (loss)171 — (4)172 
Balance as of June 30, 2021$(167)$(176)$$$(340)
(a)These accumulated other comprehensive loss components are included in the computation of net periodic benefit cost. See Note 23.
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23. PENSION AND OTHER POSTRETIREMENT BENEFITS
The following summarizes the components of net periodic benefit costs:
Three Months Ended 
June 30,
Six Months Ended 
June 30,
(In millions)2021202020212020
Pension Benefits
Service cost$72 $77 $148 $140 
Interest cost23 23 46 48 
Expected return on plan assets(29)(31)(62)(65)
Amortization – prior service credit(12)(11)(23)(22)
                      – actuarial loss14 25 17 
                      – settlement loss49 49 
Net periodic pension benefits cost$117 $68 $183 $119 
Other Benefits
Service cost$$$17 $18 
Interest cost15 16 
Amortization – prior service cost— — — 
                      – actuarial loss— 
Net periodic other benefits cost$18 $17 $38 $35 
The components of net periodic benefit cost other than the service cost component are included in net interest and other financial costs on the consolidated statements of income.
During the six months ended June 30, 2021, we made contributions of $226 million to our funded pension plans. Benefit payments related to unfunded pension and other postretirement benefit plans were $14 million and $24 million, respectively, during the six months ended June 30, 2021.
24. COMMITMENTS AND CONTINGENCIES
We are the subject of, or a party to, a number of pending or threatened legal actions, contingencies and commitments involving a variety of matters, including laws and regulations relating to the environment. Some of these matters are discussed below. For matters for which we have not recorded a liability, we are unable to estimate a range of possible loss because the issues involved have not been fully developed through pleadings, discovery or court proceedings. However, the ultimate resolution of some of these contingencies could, individually or in the aggregate, be material.
Environmental Matters
We are subject to federal, state, local and foreign laws and regulations relating to the environment. These laws generally provide for control of pollutants released into the environment and require responsible parties to undertake remediation of hazardous waste disposal sites and certain other locations including presently or formerly owned or operated retail marketing sites. Penalties may be imposed for noncompliance.
At both June 30, 2021 and December 31, 2020, accrued liabilities for remediation totaled $397 million. It is not presently possible to estimate the ultimate amount of all remediation costs that might be incurred or the penalties, if any, that may be imposed. Receivables for recoverable costs from certain states, under programs to assist companies in clean-up efforts related to underground storage tanks at presently or formerly owned or operated retail marketing sites, were $6 million and $7 million at June 30, 2021 and December 31, 2020, respectively.
Governmental and other entities in various states have filed lawsuits against energy companies, including MPC. The lawsuits allege damages as a result of climate change and the plaintiffs are seeking unspecified damages and abatement under various tort theories. We are currently subject to such proceedings in federal or state courts in California, Delaware, Maryland, Hawaii, Rhode Island and South Carolina. Similar lawsuits may be filed in other jurisdictions. At this early stage, the ultimate outcome of these matters remain uncertain, and neither the likelihood of an unfavorable outcome nor the ultimate liability, if any, can be determined.
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We are involved in a number of environmental enforcement matters arising in the ordinary course of business. While the outcome and impact on us cannot be predicted with certainty, management believes the resolution of these environmental matters will not, individually or collectively, have a material adverse effect on our consolidated results of operations, financial position or cash flows.
Other Legal Proceedings
In early July 2020, Tesoro High Plains Pipeline Company, LLC (“THPP”), a subsidiary of MPLX, received a Notification of Trespass Determination from the Bureau of Indian Affairs (“BIA”) relating to a portion of the Tesoro High Plains Pipeline that crosses the Fort Berthold Reservation in North Dakota. The notification covered the rights of way for 23 tracts of land and demanded the immediate cessation of pipeline operations. The notification also assessed trespass damages of approximately $187 million. THPP appealed this determination, which triggered an automatic stay of the requested pipeline shutdown and payment. On October 29, 2020, the Assistant Secretary - Indian Affairs issued an order vacating the BIA’s trespass order and requiring the Regional Director for the BIA Great Plains Region to issue a new decision on or before December 15, 2020 covering all 34 tracts at issue. On December 15, 2020, the Regional Director of the BIA issued a new trespass notice to THPP consistent with the Assistant Secretary - Indian Affairs order vacating the prior trespass order. The new order found that THPP was in trespass and assessed trespass damages of approximately $4 million (including interest), which has been paid. The order also required THPP to immediately cease and desist use of the portion of the pipeline that crosses the property at issue. THPP has complied with the Regional Director’s December 15, 2020 notice. On February 12, 2021, landowners filed suit in the U.S. District Court for the District of North Dakota (the “District of North Dakota”) against THPP, the Department of the Interior, the Assistant Secretary - Indian Affairs, the Interior Board of Indian Appeals and the BIA, requesting, among other things, that decisions by the Assistant Secretary - Indian Affairs and the Interior Board of Indian Appeals be vacated as to the award of damages to plaintiffs. In March 2021, THPP received a copy of an order purporting to vacate all orders related to THPP’s alleged trespass issued by the BIA between July 2, 2020 and January 14, 2021. The order directs the Regional Director of the BIA to reconsider the issue of THPP’s alleged trespass and issue a new order, if necessary, after all interested parties have had an opportunity to be heard. Subsequently, landowners voluntarily dismissed the suit filed in the District of North Dakota. On April 23, 2021, THPP filed a lawsuit in the District of North Dakota against the United States of America, the U.S. Department of the Interior and the BIA challenging the March order purporting to vacate all previous orders related to THPP’s alleged trespass.
MPLX continues to work towards a settlement of this matter with holders of the property rights at issue. Management does not believe the ultimate resolution of this matter will have a material adverse effect on our consolidated financial position, results of operations, or cash flows.
We are also a party to a number of other lawsuits and other proceedings arising in the ordinary course of business. While the ultimate outcome and impact to us cannot be predicted with certainty, we believe that the resolution of these other lawsuits and proceedings will not have a material adverse effect on our consolidated financial position, results of operations or cash flows.
Guarantees
We have provided certain guarantees, direct and indirect, of the indebtedness of other companies. Under the terms of most of these guarantee arrangements, we would be required to perform should the guaranteed party fail to fulfill its obligations under the specified arrangements. In addition to these financial guarantees, we also have various performance guarantees related to specific agreements.
Guarantees related to indebtedness of equity method investees
LOOP and LOCAP
MPC and MPLX hold interests in an offshore oil port, LOOP, and MPLX holds an interest in a crude oil pipeline system, LOCAP. Both LOOP and LOCAP have secured various project financings with throughput and deficiency agreements. Under the agreements, MPC, as a shipper, is required to advance funds if the investees are unable to service their debt. Any such advances are considered prepayments of future transportation charges. The duration of the agreements varies but tends to follow the terms of the underlying debt, which extend through 2037. Our maximum potential undiscounted payments under these agreements for the debt principal totaled $171 million as of June 30, 2021.
Dakota Access Pipeline
In connection with MPLX’s 9.19 percent indirect interest in a joint venture (“Dakota Access”) that owns and operates the Dakota Access Pipeline and Energy Transfer Crude Oil Pipeline projects, collectively referred to as the Bakken Pipeline system, MPLX entered into a Contingent Equity Contribution Agreement. MPLX, along with the other joint venture owners in the Bakken Pipeline system, has agreed to make equity contributions to the joint venture upon certain events occurring to allow the entities that own and operate the Bakken Pipeline system to satisfy their senior note payment obligations. The senior notes were issued to repay amounts owed by the pipeline companies to fund the cost of construction of the Bakken Pipeline system.
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In March 2020, the U.S. District Court for the District of Columbia (the “D.D.C.”) ordered the U.S. Army Corps of Engineers (“Army Corps”), which granted permits and an easement for the Bakken Pipeline system, to conduct a full environmental impact statement (“EIS”), and further requested briefing on whether an easement necessary for the operation of the Bakken Pipeline system should be vacated while the EIS is being prepared.
On July 6, 2020, the D.D.C. ordered vacatur of the easement to cross Lake Oahe during the pendency of an EIS and further ordered a shut down of the pipeline by August 5, 2020. The D.D.C. denied a motion to stay that order. Dakota Access and the Army Corps appealed the D.D.C.’s orders to the U.S. Court of Appeals for the District of Columbia Circuit (the “Court of Appeals”). On July 14, 2020, the Court of Appeals issued an administrative stay while the court considered Dakota Access and the Army Corps’ emergency motion for stay pending appeal. On August 5, 2020, the Court of Appeals stayed the D.D.C.’s injunction that required the pipeline be shutdown and emptied of oil by August 5, 2020. The Court of Appeals denied a stay of the D.D.C.’s March order, which required the EIS, and further denied a stay of the D.D.C.’s July order, which vacated the easement. On January 26, 2021, the Court of Appeals upheld the D.D.C.’s order vacating the easement while the Army Corps prepares the EIS. The Court of Appeals reversed the D.D.C.’s order to the extent it directed that the pipeline be shutdown and emptied of oil. On May 21, 2021, the D.D.C. denied a renewed request for an injunction. On June 22, 2021, the D.D.C. issued an order dismissing without prejudice the tribes’ claims against Dakota Access. The judge noted that the plaintiffs may move to reopen the case in the event of a violation of the court’s prior orders. The pipeline remains operational.
If the pipeline is temporarily shut down pending completion of the EIS, MPLX would have to contribute its 9.19 percent pro rata share of funds required to pay interest accruing on the notes and any portion of the principal that matures while the pipeline is shutdown. It is expected that MPLX would contribute its 9.19 percent pro rata share of any costs to remediate any deficiencies to reinstate the permit and/or return the pipeline into operation. If the vacatur of the easement permit results in a permanent shutdown of the pipeline, MPLX would have to contribute its 9.19 percent pro rata share of the cost to redeem the bonds (including the one percent redemption premium required pursuant to the indenture governing the notes) and any accrued and unpaid interest. As of June 30, 2021, our maximum potential undiscounted payments under the Contingent Equity Contribution Agreement were approximately $230 million.
Crowley Ocean Partners LLC and Crowley Blue Water Partners LLC
In connection with our 50 percent indirect interest in Crowley Ocean Partners LLC, we have agreed to conditionally guarantee our portion of the obligations of the joint venture and its subsidiaries under a senior secured term loan agreement. The term loan agreement provides for loans of up to $325 million to finance the acquisition of four product tankers. MPC’s liability under the guarantee for each vessel is conditioned upon the occurrence of certain events, including if we cease to maintain an investment grade credit rating or the charter for the relevant product tanker ceases to be in effect and is not replaced by a charter with an investment grade company on certain defined commercial terms. As of June 30, 2021, our maximum potential undiscounted payments under this agreement for debt principal totaled $114 million.
In connection with our 50 percent indirect interest in Crowley Blue Water Partners LLC, we have agreed to provide a conditional guarantee of up to 50 percent of its outstanding debt balance in the event there is no charter agreement in place with an investment grade customer for the entity’s three vessels as well as other financial support in certain circumstances. As of June 30, 2021, our maximum potential undiscounted payments under this arrangement was $111 million.
Other guarantees
We have entered into other guarantees with maximum potential undiscounted payments totaling $99 million as of June 30, 2021, which primarily consist of a commitment to contribute cash to an equity method investee for certain catastrophic events, in lieu of procuring insurance coverage, a commitment to fund a share of the bonds issued by a government entity for construction of public utilities in the event that other industrial users of the facility default on their utility payments and leases of assets containing general lease indemnities and guaranteed residual values.
Contractual Commitments and Contingencies
At June 30, 2021, our contractual commitments to acquire property, plant and equipment and advance funds to equity method investees totaled $562 million.
Certain natural gas processing and gathering arrangements require us to construct natural gas processing plants, natural gas gathering pipelines and NGL pipelines and contain certain fees and charges if specified construction milestones are not achieved for reasons other than force majeure. In certain cases, certain producer customers may have the right to cancel the processing arrangements with us if there are significant delays that are not due to force majeure.
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ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
This section should also be read in conjunction with the unaudited consolidated financial statements and accompanying footnotes included under Item 1. Financial Statements and in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2020.
Disclosures Regarding Forward-Looking Statements
This Quarterly Report on Form 10-Q, particularly Management’s Discussion and Analysis of Financial Condition and Results of Operations and Quantitative and Qualitative Disclosures about Market Risk, includes forward-looking statements that are subject to risks, contingencies or uncertainties. You can identify forward-looking statements by words such as “anticipate,” “believe,” “commitment,” “could,” “design,” “estimate,” “expect,” “forecast,” “goal,” “guidance,” “imply,” “intend,” “may,” “objective,” “opportunity,” “outlook,” “plan,” “policy,” “position,” “potential,” “predict,” “priority,” “project,” “proposition,” “prospective,” “pursue,” “seek,” “should,” “strategy,” “target,” “will,” “would” or other similar expressions that convey the uncertainty of future events or outcomes.
Forward-looking statements include, among other things, statements regarding:
future financial and operating results;
environmental, social and governance (“ESG”) goals and targets, including those related to greenhouse gas emissions, diversity and inclusion and ESG reporting;
our plans to achieve our ESG goals and targets and to monitor and report progress thereon;
future levels of capital, environmental or maintenance expenditures, general and administrative and other expenses;
expected savings from the restructuring or reorganization of business components;
the success or timing of completion of ongoing or anticipated projects or transactions;
business strategies, growth opportunities and expected investments;
consumer demand for refined products, natural gas and NGLs;
the timing and amount of any future common stock repurchases or dividends; and
the anticipated effects of actions of third parties such as competitors, activist investors, federal, foreign, state or local regulatory authorities, or plaintiffs in litigation.
Our forward-looking statements are not guarantees of future performance, and you should not rely unduly on them, as they involve risks, uncertainties and assumptions that we cannot predict. Material differences between actual results and any future performance suggested in our forward-looking statements could result from a variety of factors, including the following:
general economic, political or regulatory developments, including changes in governmental policies relating to refined petroleum products, crude oil, natural gas or NGLs, or taxation;
the magnitude, duration and potential resurgence of the COVID-19 pandemic and its effects, including travel restrictions, business and school closures, increased remote work, stay-at-home orders and other actions taken by individuals, government and the private sector to stem the spread of the virus;
our ability to realize the expected benefits of the Speedway sale within the expected timeframe or at all;
impairments;
the regional, national and worldwide availability and pricing of refined products, crude oil, natural gas, NGLs and other feedstocks;
disruptions in credit markets or changes to credit ratings;
the reliability of processing units and other equipment;
the adequacy of capital resources and liquidity, including availability, timing and amounts of free cash flow necessary to execute business plans and to effect any share repurchases or to maintain or increase the dividend;
the potential effects of judicial or other proceedings on the business, financial condition, results of operations and cash flows;
continued or further volatility in and degradation of general economic, market, industry or business conditions as a result of the COVID-19 pandemic, other infectious disease outbreaks, natural hazards, extreme weather events or otherwise;
compliance with federal and state environmental, economic, health and safety, energy and other policies and regulations and enforcement actions initiated thereunder;
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adverse market conditions or other risks affecting MPLX;
refining industry overcapacity or under capacity;
changes in producer customers’ drilling plans or in volumes of throughput of crude oil, natural gas, NGLs, refined products or other hydrocarbon-based products;
non-payment or non-performance by our customers;
changes in the cost or availability of third-party vessels, pipelines, railcars and other means of transportation for crude oil, natural gas, NGLs, feedstocks and refined products;
the price, availability and acceptance of alternative fuels and alternative-fuel vehicles and laws mandating such fuels or vehicles;
political and economic conditions in nations that consume refined products, natural gas and NGLs, including the United States and Mexico, and in crude oil producing regions, including the Middle East, Africa, Canada and South America;
actions taken by our competitors, including pricing adjustments, the expansion and retirement of refining capacity and the expansion and retirement of pipeline capacity, processing, fractionation and treating facilities in response to market conditions;
completion of pipeline projects within the United States;
changes in fuel and utility costs for our facilities;
accidents or other unscheduled shutdowns affecting our refineries, machinery, pipelines, processing, fractionation and treating facilities or equipment, or those of our suppliers or customers;
acts of war, terrorism or civil unrest that could impair our ability to produce refined products, receive feedstocks or to gather, process, fractionate or transport crude oil, natural gas, NGLs or refined products;
adverse changes in laws including with respect to tax and regulatory matters;
political pressure and influence of environmental groups and other stakeholders upon policies and decisions related to the production, gathering, refining, processing, fractionation, transportation and marketing of crude oil or other feedstocks, refined products, natural gas, NGLs or other hydrocarbon-based products;
labor and material shortages;
the costs, disruption and diversion of management’s attention associated with campaigns commenced by activist investors; and
personnel changes.
For additional risk factors affecting our business, see the risk factors described in our Annual Report on Form 10-K for the year ended December 31, 2020. We undertake no obligation to update any forward-looking statements except to the extent required by applicable law.
EXECUTIVE SUMMARY
Business Update
The outbreak of COVID-19 and its development into a pandemic in March 2020 resulted in significant economic disruption globally. Actions taken by various governmental authorities, individuals and companies around the world to prevent the spread of COVID-19 through social distancing restricted travel, many business operations, public gatherings and the overall level of individual movement and in-person interaction across the globe resulted in dramatic reductions in airline flights and motor vehicle use in 2020 as compared to prior to the pandemic.
Through the first six months of 2021, while demand remains below historical levels, we continue to see recovery in the environment in which our business operates, albeit in some markets and regions more or less than others. The increased availability of vaccinations and the corresponding reductions in travel and business restrictions appear to be driving increased economic activity, including the opening of many business and schools as well as more in-person interaction broadly. While we have seen improving results through the first six months of 2021, we are unable to predict the potential effects a resurgence of COVID-19 may have on our financial position and results.

In response to this business environment, we continue to focus on three near-term priorities for our businesses:
Strengthen Competitive Position of Assets
We are committed to positioning our assets so that we are a leader in operational, financial, and sustainability performance and are evaluating the strength and fit of assets in our portfolio. Our goal is that each individual asset generates free-cash-flow back
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to the business and contributes to shareholder returns. With our investments we are focused on high returning projects that we believe will enhance the competitiveness of our portfolio, including our investments in sustainable fuels and technologies that lower our carbon intensity as the global energy mix evolves.
Improve Commercial Performance
We are focused on leveraging advantaged raw material selection, new approaches in the commercial space to be more dynamic amidst changing market conditions and achieving technology improvements to advance our commercial performance.
Lower Cost Structure
We are committed to achieving operational excellence by reducing costs, improving efficiency and driving operational improvements. In response to the pandemic, in March of 2020, we committed to immediately reducing our capital spending and operating expenses. In 2021, we are continuing this focus with planned reductions of over $200 million for our capital expenditures and investments as compared to 2020 (excluding capitalized interest, potential acquisitions and MPLX’s capital investment plan).
In connection with our commitment to lower cost and strengthen the competitive position of our assets, in the third quarter of 2020 we announced strategic actions to lay a foundation for long-term success, including plans to optimize our assets and structurally lower costs in 2021 and beyond. These actions included indefinitely idling the Gallup refinery, initiating actions to strategically reposition the Martinez refinery to a renewable diesel facility and the approval of an involuntary workforce reduction plan. Our results in the first six months of 2021 reflect the favorable effects from these cost reduction actions.
Many uncertainties remain with respect to COVID-19, including its resulting economic effects, and we are unable to predict the ultimate economic impacts from COVID-19 and how quickly our U.S. and economies around the world can recover once the pandemic ultimately subsides. However, the adverse impact of the economic effects on MPC has been and may continue to be significant. We believe we have proactively addressed many of the known impacts of COVID-19 to the extent possible and will strive to continue to do so, but there can be no guarantee the measures will be fully effective.
Strategic Updates
On May 14, 2021, we completed the sale of Speedway, our company-owned and operated retail transportation fuel and convenience store business, to 7-Eleven for cash proceeds of $21.38 billion. This transaction resulted in a pretax gain of $11.68 billion ($8.02 billion after income taxes) after deducting the book value of the net assets and certain other adjustments. MPC remains committed to executing its plan to use the proceeds from the sale to strengthen the balance sheet and return capital to shareholders.
In connection with the Speedway sale, our board of directors approved an additional $7.1 billion share repurchase authorization bringing total share repurchase authorizations to $10.0 billion prior to the June tender of shares discussed below.
On June 15, 2021, MPC completed a modified Dutch auction tender offer, purchasing 15,573,365 shares of its common stock at a purchase price of $63.00 per share, for an aggregate purchase price of approximately $981 million, excluding fees and expenses related to the tender offer. As of June 30, 2021, MPC has $9.02 billion remaining under its share repurchase authorizations.
During the first six months of 2021, we utilized a portion of the Speedway sale proceeds to structurally reduce debt through the following actions:
In June of 2021,we redeemed all of the $300 million outstanding aggregate principal amount of 5.125% senior notes due April 2024.
In May of 2021, we repaid all outstanding commercial paper borrowings, which along with cash had been used to finance the fourth quarter 2020 repayments of two senior notes with total principal of $1.13 billion.
On March 1, 2021, we repaid the $1.0 billion outstanding aggregate principal amount of 5.125% senior notes due March 2021.
On February 24, 2021, MPC’s board of directors approved our plan to strategically reposition the Martinez refinery to a renewable diesel facility. Converting the Martinez facility from refining petroleum to manufacturing renewable fuels signals our strong commitment to producing a substantial level of lower carbon-intensity fuels in California. As envisioned, the Martinez facility would start producing approximately 260 million gallons per year of renewable diesel by the second half of 2022, with a potential to build to full capacity of approximately 730 million gallons per year by the end of 2023.
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The Dickinson, North Dakota, renewable fuels facility began ramping operations at the end of 2020 and reached full design operating capacity by the end of the second quarter of 2021. The facility has the capacity to produce 184 million gallons per year of renewable diesel from corn and soybean oil. MPC is selling the renewable diesel into the California market to comply with the California Low Carbon Fuel Standard.
Results
Select results for continuing operations are reflected in the following table.
  Three Months Ended 
June 30,
Six Months Ended 
June 30,
(In millions)2021202020212020
Income (loss) from continuing operations by segment
Refining & Marketing$224 $(1,544)$(374)$(2,041)
Midstream977 869 1,949 1,774 
Corporate(180)(195)(337)(428)
Items not allocated to segments:
Transaction-related costs(a)
— — — (8)
Impairments(b)
(56)(25)(56)(9,162)
LCM inventory valuation adjustment— 1,470 — (1,715)
Income (loss) from continuing operations965 575 1,182 (11,580)
Net interest and other financial costs372 341 725 673 
Income (loss) from continuing operations before income taxes593 234 457 (12,253)
Provision (benefit) for income taxes on continuing operations150 39 (1,801)
Income (loss) from continuing operations, net of tax588 84 418 (10,452)
(a)    2020 includes costs incurred in connection with the Midstream strategic review.
(b)    2021 includes impairments of equity method investments and long-lived assets. 2020 includes impairment of goodwill, equity method investments and long lived assets.
Select results for discontinued operations are reflected in the following table.
  Three Months Ended 
June 30,
Six Months Ended 
June 30,
(In millions)2021202020212020
Income from discontinued operations
Speedway$283 $426 $613 $826 
Transaction-related costs(a)
(23)(30)(46)(57)
Gain on sale of assets11,682 — 11,682 — 
LCM inventory valuation adjustment— 10 — (25)
Income from discontinued operations11,942 406 12,249 744 
Net interest and other financial costs10 
Income from discontinued operations before income taxes11,940 402 12,243 734 
Provision for income taxes on discontinued operations3,726 210 3,795 224 
Income from discontinued operations, net of tax$8,214 $192 $8,448 $510 
(a)    Costs related to the Speedway separation.
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The following table includes net income (loss) per diluted share data.
  Three Months Ended 
June 30,
Six Months Ended 
June 30,
2021202020212020
Net income (loss) per diluted share
Continuing operations$0.45 $(0.28)$(0.27)$(15.00)
Discontinued operations12.55 0.29 12.98 0.79 
Net income (loss) attributable to MPC$13.00 $0.01 $12.71 $(14.21)
Net income (loss) attributable to MPC was $8.51 billion, or $13.00 per diluted share, in the second quarter of 2021 compared to $9 million, or $0.01 per diluted share, for the second quarter of 2020 and $8.27 billion, or $12.71 per diluted share, in the first six months of 2021 compared to $(9.23) billion, or $(14.21) per diluted share, in the first six months of 2020.
For the second quarter of 2021, the change was largely due to the gain on the sale of Speedway and increases in average refined product sales prices and volumes, partially offset by the absence of an LCM benefit recognized in the second quarter of 2020 and a partial period of income from discontinued operations due to the sale of the Speedway business on May 14, 2021.
For the first six months of 2021, the change is primarily due to the gain on the sale of Speedway, the absence of impairment expenses and an LCM inventory charge in the first six months of 2020 and increases in average refined product sales prices and volumes, partially offset by a partial period of income from discontinued operations due to the sale of the Speedway business on May 14, 2021.
See Note 4 to the unaudited consolidated financial statements for additional information on discontinued operations.
Refer to the Results of Operations section for a discussion of consolidated financial results and segment results for the second quarter of 2021 as compared to the second quarter of 2020 and the first six months of 2021 compared to the first six months of 2020.
MPLX
We owned approximately 647 million MPLX common units at June 30, 2021 with a market value of $19.17 billion based on the June 30, 2021 closing price of $29.61 per common unit. On July 27, 2021, MPLX declared a quarterly cash distribution of $0.6875 per common unit payable on August 13, 2021. As a result, MPLX will make distributions totaling $705 million to its common unitholders. MPC’s portion of these distributions is approximately $445 million.
We received limited partner distributions of $890 million from MPLX in the six months ended June 30, 2021 and $904 million in the six months ended June 30, 2020.
During the six months ended June 30, 2021, 11,929,998 MPLX common units were repurchased at an average cost per unit of $26.02. Total cash paid for units repurchased during the six months ended June 30, 2021 was $310 million. As of June 30, 2021, MPLX had agreements to acquire 126,293 additional common units for $4 million, which settled in early July 2021. As of June 30, 2021, $657 million remained available under the authorization for future unit repurchases.
See Note 5 to the unaudited consolidated financial statements for additional information on MPLX.
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Liquidity
Our liquidity, excluding MPLX, totaled $22.35 billion at June 30, 2021 consisting of:
June 30, 2021
(In millions)Total CapacityOutstanding BorrowingsAvailable
Capacity
Bank revolving credit facility(a)
$5,000 $$4,999 
Trade receivables facility100 — 100 
Total$5,100 $$5,099 
Cash and cash equivalents and short-term investments(b)
17,249 
Total liquidity$22,348 
(a)Outstanding borrowings include $1 million in letters of credit outstanding under this facility.
(b)Excludes cash and cash equivalents of MPLX of $8 million.
Effective June 18, 2021, we terminated our $1.0 billion unsecured 364-day revolving credit facility due in September 2021 and on June 23, 2021, we reduced the capacity under our trade receivables securitization facility from $750 million to $100 million. The trade receivables securitization facility expired in July of 2021, however, we plan to secure a new $100 million trade receivable facility in the third quarter of 2021.
Additionally, nearly all of our tax refund of approximately $2.1 billion is expected to be received during the second half of 2021. We are working with the IRS to facilitate the refund, but we do not control the timing of this payment.
MPLX’s liquidity totaled $4.52 billion at June 30, 2021. As of June 30, 2021, MPLX had cash and cash equivalents of $8 million, $3.5 billion available under its $3.5 billion revolving credit agreement and $1.0 billion available through its intercompany loan agreement with MPC.
OVERVIEW OF SEGMENTS
Refining & Marketing
Refining & Marketing segment income from operations depends largely on our Refining & Marketing margin, refining operating costs, refining planned turnarounds, distribution costs, depreciation expenses and refinery throughputs.
Our Refining & Marketing margin is the difference between the prices of refined products sold and the costs of crude oil and other charge and blendstocks refined, including the costs to transport these inputs to our refineries and the costs of products purchased for resale. The crack spread is a measure of the difference between market prices for refined products and crude oil, commonly used by the industry as a proxy for the refining margin. Crack spreads can fluctuate significantly, particularly when prices of refined products do not move in the same direction as the cost of crude oil. As a performance benchmark and a comparison with other industry participants, we calculate Gulf Coast, Mid-Continent and West Coast crack spreads that we believe most closely track our operations and slate of products. The following are used for these crack spread calculations:
The Gulf Coast crack spread uses three barrels of MEH crude producing two barrels of USGC CBOB gasoline and one barrel of USGC ULSD. In the first quarter of 2021, we transitioned to MEH crude from LLS crude;
The Mid-Continent crack spread uses three barrels of WTI crude producing two barrels of Chicago CBOB gasoline and one barrel of Chicago ULSD; and
The West Coast crack spread uses three barrels of ANS crude producing two barrels of LA CARBOB and one barrel of LA CARB Diesel.
Our refineries can process significant amounts of sweet and sour crude oil, which typically can be purchased at a discount to crude oil referenced in our Gulf Coast, Mid-Continent and West Coast crack spreads. The amount of these discounts, which we refer to as the sweet differential and sour differential, can vary significantly, causing our Refining & Marketing margin to differ from blended crack spreads. In general, larger sweet and sour differentials will enhance our Refining & Marketing margin.
Future crude oil differentials will be dependent on a variety of market and economic factors, as well as U.S. energy policy.
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The following table provides sensitivities showing an estimated change in annual net income due to potential changes in market conditions. 
(In millions, after-tax) 
Blended crack spread sensitivity(a) (per $1.00/barrel change)
$838 
Sour differential sensitivity(b) (per $1.00/barrel change)
396 
Sweet differential sensitivity(c) (per $1.00/barrel change)
381 
Natural gas price sensitivity(d) (per $1.00/MMBtu)
275 
(a)Crack spread based on 40 percent MEH, 40 percent WTI and 20 percent ANS with Gulf Coast, Mid-Continent and West Coast product pricing, respectively, and assumes all other differentials and pricing relationships remain unchanged.
(b)Sour crude oil basket consists of the following crudes: ANS, Argus Sour Crude Index, Maya and Western Canadian Select. We expect approximately 51 percent of the crude processed at our refineries in 2021 will be sour crude.
(c)Sweet crude oil basket consists of the following crudes: Bakken, Brent, MEH, WTI-Cushing and WTI-Midland. We expect approximately 49 percent of the crude processed at our refineries in 2021 will be sweet crude.
(d)This is consumption-based exposure for our Refining & Marketing segment and does not include the sales exposure for our Midstream segment.
In addition to the market changes indicated by the crack spreads, the sour differential and the sweet differential, our Refining & Marketing margin is impacted by factors such as:
the selling prices realized for refined products;
the types of crude oil and other charge and blendstocks processed;
our refinery yields;
the cost of products purchased for resale;
the impact of commodity derivative instruments used to hedge price risk;
the potential impact of LCM adjustments to inventories in periods of declining prices; and
the potential impact of LIFO liquidation charges due to draw-downs from historic inventory levels.
Refining & Marketing segment income from operations is also affected by changes in refinery operating costs and refining planned turnaround costs in addition to committed distribution costs. Changes in operating costs are primarily driven by the cost of energy used by our refineries, including purchased natural gas, and the level of maintenance costs. Refining planned turnarounds, requiring temporary shutdown of certain refinery operating units, are periodically performed at each refinery. Distribution costs primarily include long-term agreements with MPLX, which as discussed below include minimum commitments to MPLX, and will negatively impact income from operations in periods when throughput or sales are lower or refineries are idled.
We have various long-term, fee-based commercial agreements with MPLX. Under these agreements, MPLX, which is reported in our Midstream segment, provides transportation, storage, distribution and marketing services to our Refining & Marketing segment. Certain of these agreements include commitments for minimum quarterly throughput and distribution volumes of crude oil and refined products and minimum storage volumes of crude oil, refined products and other products. Certain other agreements include commitments to pay for 100 percent of available capacity for certain marine transportation and refining logistics assets.
Midstream
Our Midstream segment transports, stores, distributes and markets crude oil and refined products, principally for our Refining & Marketing segment. The profitability of our pipeline transportation operations primarily depends on tariff rates and the volumes shipped through the pipelines. The profitability of our marine operations primarily depends on the quantity and availability of our vessels and barges. The profitability of our light product terminal operations primarily depends on the throughput volumes at these terminals. The profitability of our fuels distribution services primarily depends on the sales volumes of certain refined products. The profitability of our refining logistics operations depends on the quantity and availability of our refining logistics assets. A majority of the crude oil and refined product shipments on our pipelines and marine vessels and the refined product throughput at our terminals serve our Refining & Marketing segment and our refining logistics assets and fuels distribution services are used solely by our Refining & Marketing segment. As discussed above in the Refining & Marketing section, MPLX, which is reported in our Midstream segment, has various long-term, fee-based commercial agreements related to services provided to our Refining & Marketing segment. Under these agreements, MPLX has received various commitments of minimum throughput, storage and distribution volumes as well as commitments to pay for all available capacity of certain assets. The volume of crude oil that we transport is directly affected by the supply of, and refiner demand for, crude oil in the markets served directly by our crude oil pipelines, terminals and marine operations. Key factors in this supply and demand balance are the production levels of crude oil by producers in various regions or fields, the availability
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and cost of alternative modes of transportation, the volumes of crude oil processed at refineries and refinery and transportation system maintenance levels. The volume of refined products that we transport, store, distribute and market is directly affected by the production levels of, and user demand for, refined products in the markets served by our refined product pipelines and marine operations. In most of our markets, demand for gasoline and distillate peaks during the summer driving season, which extends from May through September of each year, and declines during the fall and winter months. As with crude oil, other transportation alternatives and system maintenance levels influence refined product movements.
Our Midstream segment also gathers and processes natural gas and NGLs. NGL and natural gas prices are volatile and are impacted by changes in fundamental supply and demand, as well as market uncertainty, availability of NGL transportation and fractionation capacity and a variety of additional factors that are beyond our control. Our Midstream segment profitability is affected by prevailing commodity prices primarily as a result of processing or conditioning at our own or third‑party processing plants, purchasing and selling or gathering and transporting volumes of natural gas at index‑related prices and the cost of third‑party transportation and fractionation services. To the extent that commodity prices influence the level of natural gas drilling by our producer customers, such prices also affect profitability.
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RESULTS OF OPERATIONS
The following discussion includes comments and analysis relating to our results of operations. This discussion should be read in conjunction with Item 1. Financial Statements and is intended to provide investors with a reasonable basis for assessing our historical operations, but should not serve as the only criteria for predicting our future performance.
Consolidated Results of Operations
Three Months Ended 
June 30,
Six Months Ended 
June 30,
(In millions)20212020Variance20212020Variance
Revenues and other income:
Sales and other operating revenues(a)
$29,615 $12,195 $17,420 $52,326 $34,399 $17,927 
Income (loss) from equity method investments93 79 14 184 (1,154)1,338 
Net gain on disposal of assets— (2)(2)
Other income119 24 95 196 47 149 
Total revenues and other income29,827 12,300 17,527 52,709 33,297 19,412 
Costs and expenses:
Cost of revenues (excludes items below)27,177 11,502 15,675 48,261 31,844 16,417 
LCM inventory valuation adjustment— (1,470)1,470 — 1,715 (1,715)
Impairment expense— 25 (25)— 7,847 (7,847)
Depreciation and amortization871 833 38 1,715 1,696 19 
Selling, general and administrative expenses625 665 (40)1,200 1,407 (207)
Other taxes189 170 19 351 368 (17)
Total costs and expenses28,862 11,725 17,137 51,527 44,877 6,650 
Income (loss) from continuing operations965 575 390 1,182 (11,580)12,762 
Net interest and other financial costs372 341 31 725 673 52 
Income (loss) from continuing operations before income taxes593 234 359 457 (12,253)12,710 
Provision (benefit) for income taxes on continuing operations150 (145)39 (1,801)1,840 
Income (loss) from continuing operations, net of tax588 84 504 418 (10,452)10,870 
Income from discontinued operations, net of tax8,214 192 8,022 8,448 510 7,938 
Net income (loss)8,802 276 8,526 8,866 (9,942)18,808 
Less net income (loss) attributable to:
Redeemable noncontrolling interest21 21 — 41 41 — 
Noncontrolling interests269 246 23 555 (758)1,313 
Net income (loss) attributable to MPC$8,512 $$8,503 $8,270 $(9,225)$17,495 
(a)In accordance with discontinued operations accounting, Speedway sales to retail customers and net results are reflected in Income from discontinued operations, net of tax and Refining & Marketing intercompany sales to Speedway are now presented as third party sales through the close of the sale on May 14, 2021.
Second Quarter 2021 Compared to Second Quarter 2020
Net income attributable to MPC increased $8.50 billion in the second quarter of 2021 compared to the second quarter of 2020 largely due to the gain on the sale of Speedway, increases in refined product sales volumes and prices, partially offset by the absence of an LCM inventory benefit in the second quarter of 2020 and a partial period of income from discontinued operations due to the sale of the Speedway business on May 14, 2021.
Revenues and other income increased $17.53 billion primarily due to:
increased sales and other operating revenues of $17.42 billion primarily due to increased Refining & Marketing segment average refined product sales prices of $1.06 per gallon and increased refined product sales volumes of 611 mbpd; and
increased other income of $95 million primarily due to higher income on RIN sales.
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Costs and expenses increased $17.14 billion primarily due to:
increased cost of revenues of $15.68 billion mainly due to higher refined product raw material and crude oil costs;
the absence of an LCM benefit of $1.47 billion resulting from a lower LCM reserve as of June 30, 2020 as compared to March 31, 2020; and
decreased selling, general and administrative expenses of $40 million largely due to cost reductions realized from our 2020 workforce reduction and other cost control efforts.
Net interest and other financial costs increased $31 million largely due to pension settlement losses of $49 million, partially offset by decreased interest expense due to lower MPC and MPLX borrowings.
We recorded a combined federal, state and foreign income tax provision of $5 million for the three months ended June 30, 2021, which was lower than the tax computed at the U.S. statutory rate primarily due to permanent tax differences related to income attributable to noncontrolling interests. We recorded a combined federal, state and foreign income tax provision of $150 million for the three months ended June 30, 2020, which was higher than the tax computed at the U.S. statutory rate primarily due to impacts attributable to noncontrolling interests, state taxes and the tax rate differential resulting from the expected NOL carryback provided under the CARES Act.
Noncontrolling interests increased $23 million primarily due to an increase in MPLX’s net income.
Six Months Ended June 30, 2021 Compared to Six Months Ended June 30, 2020
Net income attributable to MPC increased $17.50 billion in the first six months of 2021 compared to the first six months of 2020 primarily due to the gain on the sale of Speedway, the absence of impairment expenses and an LCM inventory charge in the first six months of 2020 and increases in average refined product sales prices and volumes, partially offset by a partial period of income from discontinued operations due to the sale of the Speedway business on May 14, 2021.
Revenues and other income increased $19.41 billion primarily due to:
increased sales and other operating revenues of $17.93 billion primarily due to increased average refined product sales prices of $0.63 per gallon and increased Refining & Marketing segment refined product sales volumes, which increased 46 mbpd;
increased income from equity method investments of $1.34 billion largely due to impairments of equity method investments of $1.32 billion recorded in the first six months of 2020 primarily driven by the effects of COVID-19 and the decline in commodity prices; and
increased other income of $149 million primarily due to higher income on RIN sales.
Costs and expenses increased $6.65 billion primarily due to:
increased cost of revenues of $16.42 billion primarily due to higher crude oil and refined product raw material costs;
the absence of an LCM charge of $1.72 billion primarily driven by the effects of COVID-19 and the decline in commodity prices in the prior year;
decreased impairment expense of $7.85 billion due to impairments recorded for goodwill and long-lived assets in the in the first six months of 2020 primarily driven by the effects of COVID-19 and the decline in commodity prices in the prior year; and
decreased selling, general and administrative expenses of $207 million largely due to cost reductions realized from our 2020 workforce reduction and other cost control efforts.
Net interest and other financial costs increased $52 million largely due to pension settlement losses of $49 million.
We recorded a combined federal, state and foreign income tax provision of $39 million for the six months ended June 30, 2021, which was lower than the tax computed at the U.S. statutory rate primarily due to permanent tax differences related to income attributable to noncontrolling interests. We recorded a combined federal, state and foreign income tax benefit of $1.80 billion for the six months ended June 30, 2020, which was lower than the tax computed at the U.S. statutory rate primarily due to a significant amount of our pre-tax loss consisting of non-tax deductible goodwill impairment charges, partially offset by the tax rate differential resulting from the expected NOL carryback provided under the CARES Act. Additionally, our non-controlling interest in MPLX generally provides an effective tax rate benefit since the tax associated with those ownership interests is paid by those interests, but this benefit was lower for the six months ended June 30, 2020 due to impairment charges recorded by MPLX.
Net income attributable to noncontrolling interests increased $1.31 billion primarily due to an increase in MPLX’s net income largely due to impairment expense recognized during the first six months of 2020.
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Segment Results
Refining & Marketing
The following includes key financial and operating data for the second quarter of 2021 compared to the second quarter of 2020 and the six months ended June 30, 2021 compared to the six months ended June 30, 2020.

mpc-20210630_g1.jpgmpc-20210630_g2.jpg

mpc-20210630_g3.jpgmpc-20210630_g4.jpg
(a)Includes intersegment sales to Midstream and sales destined for export.

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Three Months Ended 
June 30,
Six Months Ended 
June 30,
2021202020212020
Refining & Marketing Operating Statistics
Net refinery throughput (mbpd)
2,854 2,276 2,710 2,635 
Refining & Marketing margin per barrel(a)(b)
12.45 7.64 11.37 10.04 
Less:
Refining operating costs per barrel, excluding winter storm effect(c)
4.59 6.13 4.86 6.06 
Winter storm effect on refining operating cost(d)
— — 0.06 — 
Distribution costs per barrel5.04 5.87 5.11 5.23 
Refining planned turnaround costs per barrel0.24 0.78 0.35 1.02 
Depreciation and amortization per barrel1.80 2.24 1.93 1.95 
Plus: 
Other per barrel(e)
0.08 (0.07)0.18 (0.04)
Refining & Marketing segment income (loss) per barrel$0.86 $(7.45)$(0.76)$(4.26)
Fees paid to MPLX included in distribution costs above$3.33 $4.06 $3.49 $3.54 
(a)Sales revenue less cost of refinery inputs and purchased products, divided by net refinery throughput.
(b)See “Non-GAAP Measures” section for reconciliation and further information regarding this non-GAAP measure.
(c)Includes refining operating costs and major maintenance costs. Excludes planned turnaround and depreciation and amortization expense.
(d)Winter storms in the first quarter of 2021 resulted in higher costs, including maintenance and repairs.
(e)Includes income (loss) from equity method investments, net gain (loss) on disposal of assets and other income.

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The following table presents certain benchmark prices in our marketing areas and market indicators that we believe are helpful in understanding the results of our Refining & Marketing segment. The benchmark crack spreads below do not reflect the market cost of RINs necessary to meet EPA renewable volume obligations for attributable products under the Renewable Fuel Standard.
Three Months Ended 
June 30,
Six Months Ended 
June 30,
Benchmark Spot Prices (dollars per gallon)
2021202020212020
Chicago CBOB unleaded regular gasoline$2.07 $0.78 $1.86 $0.99 
Chicago ULSD2.04 0.88 1.89 1.15 
USGC CBOB unleaded regular gasoline1.99 0.81 1.84 1.03 
USGC ULSD1.95 0.91 1.82 1.19 
LA CARBOB2.22 0.95 2.03 1.24 
LA CARB diesel1.99 0.97 1.89 1.30 
Market Indicators (dollars per barrel)
WTI$66.17 $28.00 $62.22 $36.82 
MEH66.90 — 63.26 — 
LLS— 30.39 — 38.95 
ANS68.51 30.57 64.85 40.72 
Crack Spreads:
Mid-Continent WTI 3-2-1$12.30 $4.72 $10.10 6.05 
USGC MEH 3-2-17.96 — 7.32 — 
USGC LLS 3-2-1— 2.75 — 4.60 
West Coast ANS 3-2-113.42 7.44 12.05 10.04 
Blended 3-2-1(a)
10.79 4.62 9.38 6.45 
Crude Oil Differentials:
Sweet$(0.27)$(1.70)$(0.64)$(1.20)
Sour(3.09)(3.78)(3.10)(4.34)
(a)    Blended 3-2-1 Mid-Continent/USGC/West Coast crack spread is 40/40/20 percent in 2021. Blended 3-2-1 Mid-Continent/USGC/West Coast crack spread is 38/38/24 percent in 2020. These blends are based on our refining capacity by region in each period. Beginning in the first quarter of 2021, the prompt price for USGC was transitioned from LLS to MEH.
Second Quarter 2021 Compared to Second Quarter 2020
Refining & Marketing segment revenues increased $17.19 billion primarily due to increased average refined product sales prices of $1.06 per gallon and increased refined product sales volume of 611 mbpd.
Net refinery throughputs increased 578 mbpd during the second quarter of 2021, primarily due to continuing industry recovery from the impact of COVID-19 in 2020.
Refining & Marketing segment income from operations increased $1.77 billion primarily due to higher blended crack spreads and reduced refining planned turnaround and refining operating costs.
Refining & Marketing margin was $12.45 per barrel for the second quarter of 2021 compared to $7.64 per barrel for the second quarter of 2020. Refining & Marketing margin is affected by our performance against the market indicators shown earlier, which use spot market values and an estimated mix of crude purchases and product sales. Based on the market indicators and our crude oil throughput, we estimate a net positive impact of approximately $1.3 billion on Refining & Marketing margin for the second quarter of 2021 compared to the second quarter of 2020, primarily due to higher crack spreads. Our reported Refining & Marketing margin differs from market indicators due to the mix of crudes purchased and their costs, the effect of market structure on our crude oil acquisition prices, the effect of RIN prices on the crack spread, and other items like refinery yields, other feedstock variances and fuel margin from sales to direct dealers. These factors had an estimated net positive effect of approximately $300 million on Refining & Marketing segment income in the second quarter of 2021 compared to the second quarter of 2020.
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For the three months ended June 30, 2021, refining operating costs, excluding depreciation and amortization, decreased $77 million, or $1.54 per barrel, compared to the three months ended June 30, 2020 as we took actions to reduce costs in response to the economic effects of COVID-19, including idling portions of our refining capacity. The per barrel cost also decreased as a result of higher throughputs during the quarter.
Distribution costs, excluding depreciation and amortization, increased $94 million and include fees paid to MPLX of $866 million and $841 million for the second quarter of 2021 and 2020, respectively. On a per barrel basis, distribution costs, excluding depreciation and amortization, decreased $0.83 per barrel as increased costs were offset by higher throughput.
Refining planned turnaround costs decreased $101 million, or $0.54 per barrel, due to the timing of turnaround activity.
Depreciation and amortization decreased $0.44 per barrel primarily due to higher throughput.
Six Months Ended June 30, 2021 Compared to Six Months Ended June 30, 2020
Refining & Marketing segment revenues increased $17.57 billion primarily due to increased average refined product sales prices of $0.63 per gallon and higher refined product sales volumes, which increased 46 mbpd.
Net refinery throughputs increased 75 mbpd in the first six months of 2021, primarily due to continuing industry recovery from the impact of COVID-19 in 2020.
Refining & Marketing segment loss from operations decreased $1.67 billion primarily driven by higher blended crack spreads and reduced refining operating and refining planned turnaround costs, partially offset by narrower sweet and sour differentials.
Refining & Marketing margin was $11.37 per barrel for the first six months of 2021 compared to $10.04 per barrel for the first six months of 2020. Refining & Marketing margin is affected by the market indicators shown earlier, which use spot market values and an estimated mix of crude purchases and product sales. Based on the market indicators and our crude oil throughput, we estimate a net positive impact of approximately $700 million on Refining & Marketing margin for the first six months of 2021 compared to the first six months of 2020, primarily due to higher crack spreads partially offset by narrower sweet and sour differentials. Our reported Refining & Marketing margin differs from market indicators due to the mix of crudes purchased and their costs, market structure on our crude oil acquisition prices, RIN prices on the crack spread, and other items like refinery yields, other feedstock variances and direct dealer fuel margin. These factors had an estimated net positive effect of approximately $100 million on Refining & Marketing segment income in the first six months of 2021 compared to the first six months of 2020.
For the six months ended June 30, 2021, refining operating costs, excluding depreciation and amortization and the winter storm effect, decreased $525 million, or $1.20 per barrel, compared to the six months ended June 30, 2020 as we took actions to reduce costs in response to the economic effects of COVID-19, including idling portions of our refining capacity.
Distribution costs, excluding depreciation and amortization, were $2.51 billion in both periods and include fees paid to MPLX of $1.71 billion and $1.70 billion for the first six months of 2021 and 2020, respectively. On a per barrel basis, distribution costs, excluding depreciation and amortization, decreased $0.12 per barrel due to higher throughput.
Refining planned turnaround costs decreased $318 million, or $0.67 per barrel, due to the timing of turnaround activity.
Depreciation and amortization decreased $0.02 per barrel as increased costs were offset by higher throughput.
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Supplemental Refining & Marketing Statistics
Three Months Ended 
June 30,
Six Months Ended 
June 30,
2021202020212020
Refining & Marketing Operating Statistics
Crude oil capacity utilization percent(a)
94 71 89 81 
Refinery throughputs (mbpd):
Crude oil refined2,713 2,165 2,548 2,475 
Other charge and blendstocks141 111 162 160 
Net refinery throughput2,854 2,276 2,710 2,635 
Sour crude oil throughput percent48 53 48 50 
Sweet crude oil throughput percent52 47 52 50 
Refined product yields (mbpd):
Gasoline1,436 1,114 1,380 1,301 
Distillates984 834 933 927 
Propane54 45 50 52 
Feedstocks and petrochemicals301 217 262 284 
Heavy fuel oil27 27 31 32 
Asphalt91 76 94 78 
Total2,893 2,313 2,750 2,674 
Refined product export sales volumes (mbpd)(b)
231 219 237 301 
(a)Based on calendar-day capacity, which is an annual average that includes down time for planned maintenance and other normal operating activities.
(b)Represents fully loaded export cargoes for each time period. These sales volumes are included in the total sales volume amounts.

Midstream
The following includes key financial and operating data for the second quarter of 2021 compared to the second quarter of 2020 and the six months ended June 30, 2021 compared to the six months ended June 30, 2020.
mpc-20210630_g5.jpgmpc-20210630_g6.jpg
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(a)On owned common-carrier pipelines, excluding equity method investments.
(b)Includes amounts related to unconsolidated equity method investments on a 100 percent basis.

Three Months Ended 
June 30,
Six Months Ended 
June 30,
Benchmark Prices2021202020212020
Natural Gas NYMEX HH ($ per MMBtu)
$2.97 $1.76 $2.85 $1.81 
C2 + NGL Pricing ($ per gallon)(a)
$0.75 $0.34 $0.74 $0.37 
(a)C2 + NGL pricing based on Mont Belvieu prices assuming an NGL barrel of approximately 35 percent ethane, 35 percent propane, 6 percent iso-butane, 12 percent normal butane and 12 percent natural gasoline.
Second Quarter 2021 Compared to Second Quarter 2020
Midstream segment revenue and segment income from operations increased $336 million and $108 million, respectively. Results for the quarter benefited from higher revenue, primarily due to higher pipeline and terminal throughputs and higher natural gas prices, in addition to lower operating expenses.
Six Months Ended June 30, 2021 Compared to Six Months Ended June 30, 2020
Midstream segment revenue and segment income from operations increased $424 million and $175 million, respectively. Results benefited from higher revenue, primarily due to higher pipeline and terminal throughputs and higher natural gas prices, in addition to lower operating expenses in the first six months of 2021.
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Corporate
Key Financial Information (in millions)
Three Months Ended 
June 30,
Six Months Ended 
June 30,
2021202020212020
Corporate(a)
$(180)$(195)$(337)$(428)
(a)Corporate costs consist primarily of MPC’s corporate administrative expenses and costs related to certain non-operating assets, except for corporate overhead expenses attributable to MPLX, which are included in the Midstream segment.
Second Quarter 2021 Compared to Second Quarter 2020
Corporate costs decreased $15 million largely due to cost reductions realized from our 2020 workforce reduction and other cost control efforts.
Six Months Ended June 30, 2021 Compared to Six Months Ended June 30, 2020
Corporate costs decreased $91 million largely due to cost reductions realized from our 2020 workforce reduction and other cost control efforts.
Items not Allocated to Segments
Key Financial Information (in millions)
Three Months Ended 
June 30,
Six Months Ended 
June 30,
2021202020212020
Items not allocated to segments:
Transaction-related costs(a)
$— $— $— $(8)
Impairments(56)(25)(56)(9,162)
LCM inventory valuation adjustment— 1,470 — (1,715)
 Total items not allocated to segments:(56)1,445 (56)(10,885)
(a)2020 includes costs incurred in connection with the Midstream strategic review. Costs incurred in 2020 in connection with the Speedway separation are included in discontinued operations. See Note 4 to the unaudited consolidated financial statements for additional information on discontinued operations.
Second Quarter 2021 Compared to Second Quarter 2020
Total items not allocated to segments included impairment expense of $56 million in the second quarter of 2021. During the second quarter of 2020, we recognized an LCM benefit of $1.47 billion and impairment expense of $25 million.

Six Months Ended June 30, 2021 Compared to Six Months Ended June 30, 2020
Total items not allocated to segments included impairment expense of $56 million in the first six months of 2021. During the first six months of 2020, we recorded impairment charges of approximately $9.16 billion, which includes $7.85 billion related to goodwill and long-lived assets and $1.32 billion related to equity method investments, and an LCM charge of $1.72 billion primarily driven by the effects of COVID-19 and the decline in commodity prices.
Items not allocated to segments also include transaction-related costs of $8 million for the first six months of 2020 associated with the Midstream strategic review and other related activities.
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Non-GAAP Financial Measure
Management uses a financial measure to evaluate our operating performance that is calculated and presented on the basis of a methodology other than in accordance with GAAP. We believe this non-GAAP financial measure is useful to investors and analysts to assess our ongoing financial performance because, when reconciled to its most comparable GAAP financial measure, it provides improved comparability between periods through the exclusion of certain items that we believe are not indicative of our core operating performance and that may obscure our underlying business results and trends. This measure should not be considered a substitute for, or superior to, measures of financial performance prepared in accordance with GAAP, and our calculation thereof may not be comparable to similarly titled measures reported by other companies. The non-GAAP financial measure we use is as follows:
Refining & Marketing Margin
Refining & Marketing margin is defined as sales revenue less the cost of refinery inputs and purchased products and excludes other items as reflected in the table below.
Reconciliation of Refining & Marketing income from operations to Refining & Marketing gross margin and Refining & Marketing margin
Three Months Ended 
June 30,
Six Months Ended 
June 30,
(in millions)2021202020212020
Refining & Marketing income (loss) from operations(a)
$224 $(1,544)$(374)$(2,041)
Plus (Less):
Selling, general and administrative expenses499 502 955 1,058 
LCM inventory valuation adjustment— 1,470 — (1,715)
(Income) loss from equity method investments(14)19 (19)22 
Net gain on disposal of assets— (3)
Other income(89)(4)(143)(8)
Refining & Marketing gross margin620 444 416 (2,683)
Plus (Less):
Operating expenses (excluding depreciation and amortization)2,305 2,240 4,580 5,073 
LCM inventory valuation adjustment— (1,470)— 1,715 
Depreciation and amortization466 463 944 936 
Gross margin excluded from Refining & Marketing margin(b)
(198)(75)(377)(184)
Other income included in Refining & Marketing margin82 — 82 — 
Other taxes included in Refining & Marketing margin(42)(19)(66)(43)
Refining & Marketing margin(a)
3,233 1,583 5,579 4,814 
(a)LCM inventory valuation adjustments are excluded from Refining & Marketing income from operations and Refining & Marketing margin.
(b)Reflects the gross margin, excluding depreciation and amortization, of other related operations included in the Refining & Marketing segment and processing of credit card transactions on behalf of certain of our marketing customers.
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LIQUIDITY AND CAPITAL RESOURCES
Cash Flows
Our consolidated cash and cash equivalents balance for continuing operations was approximately $11.84 billion at June 30, 2021 compared to $415 million at December 31, 2020. Cash and cash equivalents for discontinued operations was $140 million at December 31, 2020. Net cash provided by (used in) operating activities, investing activities and financing activities are presented in the following table.
 Six Months Ended 
June 30,
(In millions)20212020
Net cash provided by (used in):
Operating activities$1,834 $(230)
Investing activities15,403 (2,077)
Financing activities(5,954)1,871 
Total increase (decrease) in cash$11,283 $(436)
Net cash provided by operating activities increased $2.06 billion in the first six months of 2021 compared to the first six months of 2020, primarily due to a favorable change in working capital of $1.31 billion when comparing the change in working capital in both periods and an increase in operating results. Changes in working capital exclude changes in short-term debt. The favorable continuing operations changes were partially offset by a decrease in cash provided by discontinued operations of $757 million which reflect the results of the Speedway business. The decrease in cash provided by discontinued operating cash flows is due to tax payments related to the gain on sale and working capital changes.
Changes in working capital, excluding changes in short-term debt, were a net $347 million use of cash in the first six months of 2021 compared to a net $1.66 billion use of cash in the first six months of 2020.
For the first six months of 2021, changes in working capital were a net $347 million use of cash primarily due to the effects of increasing energy commodity prices and volumes at the end of the period on working capital. Accounts payable increased primarily due to increases in crude prices and volumes. Current receivables increased primarily due to higher crude and refined product prices and volumes. Inventories increased primarily due to increases in refined product and crude inventories.
For the first six months of 2020, changes in working capital, excluding the LCM reserve and changes in short-term debt, were a net $1.66 billion use of cash primarily due to the effects of decreasing energy commodity prices and volumes at the end of the period on working capital. Accounts payable decreased primarily due to decreases in crude prices and volumes. Current receivables decreased primarily due to lower crude and refined product prices and volumes. Excluding the LCM reserve, inventories decreased due to decreases in crude and refined product inventories.
Net cash provided by investing activities was $15.40 billion in the first six months of 2021 compared to net cash used in investing activities of $2.08 billion in the first six months of 2020. The change from 2020 is primarily due to proceeds from the sale of Speedway of $21.38 billion and a decrease in additions to property, plant and equipment of $1.09 billion, partially offset by purchases of short-term investments of $5.42 billion.
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The consolidated statements of cash flows exclude changes to the consolidated balance sheets that did not affect cash. A reconciliation of additions to property, plant and equipment per the consolidated statements of cash flows to reported total capital expenditures and investments follows.
 Six Months Ended 
June 30,
(In millions)20212020
Additions to property, plant and equipment per the consolidated statements of cash flows$606 $1,696 
Decrease in capital accruals(19)(338)
Total capital expenditures587 1,358 
Investments in equity method investees (excludes acquisitions)113 383 
Total capital expenditures and investments$700 $1,741 
Financing activities were a net $5.95 billion use of cash in the first six months of 2021 compared to a net $1.87 billion source of cash in the first six months of 2020.
MPC borrowed $7.41 billion and repaid $8.44 billion under its commercial paper program in the first six months of 2021.
Long-term debt borrowings and repayments were a net $2.28 billion use of cash in the first six months of 2021 compared to a net $3.26 billion source of cash in the first six months of 2020. During the first six months of 2021, MPC repaid $1.3 billion of senior notes, borrowed and repaid $3.65 billion under its revolving credit facility and borrowed and repaid $4.65 billion under its trade receivables facility. MPLX redeemed $750 million of senior notes and had net payments of $175 million under its revolving credit facility. During the first six months of 2020, MPC issued $2.5 billion of senior notes, borrowed and repaid $3.5 billion under its revolving credit facility, borrowed and repaid $1.18 billion under its trade receivables facility and MPLX had net borrowings of $825 million under its revolving credit facility.
Cash used in common stock repurchases, including fees and expenses, totaled $984 million in the first six months of 2021. See the “Capital Requirements” section for further discussion of our stock repurchases.
Repurchases of noncontrolling interests were $310 million in the first six months of 2021 related to the repurchase of MPLX common units. See Note 5 to the unaudited consolidated financial statements for further discussion of MPLX.
Derivative Instruments
See Item 3. Quantitative and Qualitative Disclosures about Market Risk for a discussion of derivative instruments and associated market risk.
Capital Resources
MPC, Excluding MPLX
We control MPLX through our ownership of the general partner, however, the creditors of MPLX do not have recourse to MPC’s general credit through guarantees or other financial arrangements. The assets of MPLX can only be used to settle its own obligations and its creditors have no recourse to our assets. Therefore, in the following table, we present the liquidity of MPC, excluding MPLX. MPLX liquidity is discussed in the following section.
Our liquidity, excluding MPLX, totaled $22.35 billion at June 30, 2021 consisting of:
June 30, 2021
(In millions)Total CapacityOutstanding BorrowingsAvailable
Capacity
Bank revolving credit facility(a)
$5,000 $$4,999 
Trade receivables facility100 — 100 
Total$5,100 $$5,099 
Cash and cash equivalents and short-term investments(b)
17,249 
Total liquidity$22,348 
(a)Outstanding borrowings include $1 million in letters of credit outstanding under this facility.
(b)Excludes cash and cash equivalents of MPLX of $8 million.

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On May 14, 2021, we completed the sale of Speedway, our company-owned and operated retail transportation fuel and convenience store business, to 7-Eleven for cash proceeds of $21.38 billion. This transaction resulted in a pretax gain of $11.68 billion ($8.02 billion after income taxes) after deducting the book value of the net assets and certain other adjustments. We utilized a portion of the Speedway sale proceeds to structurally reduce debt and the remaining proceeds are included in our liquidity as cash and cash equivalents and short-term investments.
Because of the alternatives available to us, including internally generated cash flow and access to capital markets and a commercial paper program, we believe that our short-term and long-term liquidity is adequate to fund not only our current operations, but also our near-term and long-term funding requirements, including capital spending programs, the repurchase of shares of our common stock, dividend payments, defined benefit plan contributions, repayment of debt maturities and other amounts that may ultimately be paid in connection with contingencies.
Effective June 18, 2021, we terminated our $1.0 billion unsecured 364-day revolving credit facility due in September 2021 and on June 23, 2021, we reduced the capacity under our trade receivables securitization facility from $750 million to $100 million. The trade receivables securitization facility expired in July of 2021, however, we plan to secure a new $100 million trade receivable facility in the third quarter of 2021.
Additionally, nearly all of our tax refund of approximately $2.1 billion is expected to be received during the second half of 2021. We are working with the IRS to facilitate the refund, but we do not control the timing of the payment.
We have a commercial paper program that allows us to have a maximum of $2.0 billion in commercial paper outstanding. We do not intend to have outstanding commercial paper borrowings in excess of available capacity under our bank revolving credit facility. At June 30, 2021, we had no borrowings outstanding under the commercial paper program.
The MPC credit agreement contains and our trade receivables facility contained representations and warranties, affirmative and negative covenants and events of default that we consider usual and customary for agreements of these types. The financial covenant included in the MPC credit agreement requires us to maintain, as of the last day of each fiscal quarter, a ratio of Consolidated Net Debt to Total Capitalization (as defined in the MPC credit agreements) of no greater than 0.65 to 1.00. As of June 30, 2021, we were in compliance with the covenants contained in the MPC bank revolving credit facility and our trade receivables facility, including the financial covenant with a ratio of Consolidated Net Debt to Total Capitalization of less than 0.00 to 1.00.
Our intention is to maintain an investment-grade credit profile. As of June 30, 2021, the credit ratings on our senior unsecured debt are as follows.
 
CompanyRating AgencyRating
MPCMoody’sBaa2 (stable outlook)
Standard & Poor’sBBB (negative outlook)
FitchBBB (stable outlook)
The ratings reflect the respective views of the rating agencies. Although it is our intention to maintain a credit profile that supports an investment-grade rating, there is no assurance that these ratings will continue for any given period of time. The ratings may be revised or withdrawn entirely by the rating agencies if, in their respective judgments, circumstances so warrant.
The MPC credit agreement does not contain credit rating triggers that would result in the acceleration of interest, principal or other payments in the event that our credit ratings are downgraded. However, any downgrades of our senior unsecured debt could increase the applicable interest rates, yields and other fees payable thereunder and may limit our flexibility to obtain financing in the future, including to refinance existing indebtedness. In addition, a downgrade of our senior unsecured debt rating to below investment-grade levels could, under certain circumstances, impact our ability to purchase crude oil on an unsecured basis and could result in us having to post letters of credit under existing transportation services or other agreements.
See Note 19 to the unaudited consolidated financial statements for further discussion of our debt.
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MPLX
MPLX’s liquidity totaled $4.52 billion at June 30, 2021 consisting of:
June 30, 2021
(In millions)Total CapacityOutstanding BorrowingsAvailable
Capacity
MPLX LP - bank revolving credit facility$3,500 $— $3,500 
MPC intercompany loan agreement1,500 493 1,007 
Total$5,000 $493 $4,507 
Cash and cash equivalents
Total liquidity$4,515 
On August 4, 2021, MPLX announced the intent to provide notice of the redemption of all of the $1 billion outstanding aggregate principal amount of MPLX's LIBOR plus 1.100% per annum floating rate senior notes due September 9, 2022. The notes are expected to be redeemed on September 3, 2021, at a price equal to 100% of the principal amount thereof, plus accrued and unpaid interest to, but not including, the redemption date. MPLX expects to fund the redemption amount with a combination of cash on hand and borrowings under the MPLX credit agreement or the MPC intercompany loan agreement.
The MPLX credit agreement contains certain representations and warranties, affirmative and restrictive covenants and events of default that we consider to be usual and customary for an agreement of this type. The financial covenant requires MPLX to maintain a ratio of Consolidated Total Debt as of the end of each fiscal quarter to Consolidated EBITDA (both as defined in the MPLX credit agreement) for the prior four fiscal quarters of no greater than 5.0 to 1.0 (or 5.5 to 1.0 during the six-month period following certain acquisitions). Consolidated EBITDA is subject to adjustments for certain acquisitions completed and capital projects undertaken during the relevant period. Other covenants restrict MPLX and/or certain of its subsidiaries from incurring debt, creating liens on assets and entering into transactions with affiliates. As of June 30, 2021, MPLX was in compliance with the covenants, including the financial covenant with a ratio of Consolidated Total Debt to Consolidated EBITDA of 3.7 to 1.0.
Our intention is to maintain an investment-grade credit profile for MPLX. As of June 30, 2021, the credit ratings on MPLX’s senior unsecured debt are as follows.
 
CompanyRating AgencyRating
MPLXMoody’sBaa2 (stable outlook)
Standard & Poor’sBBB (negative outlook)
FitchBBB (stable outlook)
The ratings reflect the respective views of the rating agencies. Although it is our intention to maintain a credit profile that supports an investment-grade rating for MPLX, there is no assurance that these ratings will continue for any given period of time. The ratings may be revised or withdrawn entirely by the rating agencies if, in their respective judgments, circumstances so warrant.
The agreements governing MPLX’s debt obligations do not contain credit rating triggers that would result in the acceleration of interest, principal or other payments in the event that MPLX credit ratings are downgraded. However, any downgrades of MPLX senior unsecured debt to below investment grade ratings could increase the applicable interest rates, yields and other fees payable under such agreements. In addition, a downgrade of MPLX senior unsecured debt ratings to below investment-grade levels may limit MPLX’s ability to obtain future financing, including to refinance existing indebtedness.
See Item 8. Financial Statements and Supplementary Data – Note 19 for further discussion of MPLX’s debt.
Capital Requirements
Capital Investment Plan
MPC's capital investment plan for 2021 totals approximately $1.4 billion for capital projects and investments, excluding capitalized interest, potential acquisitions and MPLX’s capital investment plan. MPC’s capital investment plan includes all of the planned capital spending for Refining & Marketing and Corporate, as well as a portion of the planned capital investments in Midstream and Speedway’s capital spending through the close of the sale on May 14, 2021, which is now reported separately as discontinued operations. The remainder of the planned capital spending for Midstream reflects the capital investment plan for MPLX, which totals $1.0 billion, excluding project reimbursements paid by MPC to MPLX and return of capital from MPLX’s joint venture partners. We continuously evaluate our capital investment plan and make changes as conditions warrant.
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Capital expenditures and investments for MPC and MPLX are summarized below.
 Six Months Ended 
June 30,
(In millions)20212020
Capital expenditures and investments:(a)
MPC continuing operations, excluding MPLX
Refining & Marketing$310 $741 
Midstream - Other36 158 
Corporate and Other(b)
44 45 
Total MPC continuing operations, excluding MPLX$390 $944 
MPC discontinued operations - Speedway$177 $131 
Midstream - MPLX$280 $741 
(a)    Capital expenditures exclude changes in capital accruals.
(b)    Excludes capitalized interest of $30 million and $56 million for the six months ended June 30, 2021 and 2020, respectively.
Capital expenditures and investments in affiliates during the six months ended June 30, 2021, were primarily for Refining & Marketing and Midstream segment projects. Major Refining & Marketing projects include the conversion of the Martinez facility from refining petroleum to manufacturing renewable fuels and the South Texas Asset Repositioning (“STAR”) project intended to optimize operations and reduce costs at our Galveston Bay refinery, in addition to other projects that we expect will help us reduce future operating costs.
Major Midstream projects include increasing processing capacity at a gas processing plant in the Marcellus region, which was placed in service, the Whistler natural gas pipeline, which began full commercial service, the Wink to Webster crude oil pipeline and the reversal of the Capline crude pipeline.
Other Capital Requirements
During the six months ended June 30, 2021, we contributed $226 million to our funded pension plans. We may choose to make additional contributions to our pension plans.
On July 28, 2021, our board of directors approved a dividend of $0.58 per share on common stock. The dividend is payable September 10, 2021, to shareholders of record as of the close of business on August 18, 2021.
As of June 30, 2021, $77 million of restructuring expenses were accrued as restructuring reserves in our consolidated balance sheet. We expect cash payments for the remaining exit and disposal costs reserve to occur through 2024.
We may, from time to time, repurchase our senior notes in the open market, in tender offers, in privately-negotiated transactions or otherwise in such volumes, at such prices and upon such other terms as we deem appropriate.
Share Repurchases
In connection with the Speedway sale, our board of directors approved an additional $7.1 billion share repurchase authorization bringing total share repurchase authorizations to $10.0 billion prior to the June tender of shares discussed below.
On June 15, 2021, MPC completed a modified Dutch auction tender offer, purchasing 15,573,365 shares of its common stock at a purchase price of $63.00 per share, for an aggregate purchase price of approximately $981 million, excluding fees and expenses related to the tender offer. As of June 30, 2021, MPC has $9.02 billion remaining under its share repurchase authorization.
Since January 1, 2012, our board of directors has approved $25.05 billion in total share repurchase authorizations and we have repurchased a total of $16.03 billion of our common stock.
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During the six months ended June 30, 2021, 11,929,998 MPLX common units were repurchased at an average cost per unit of $26.02. Total cash paid for units repurchased during the six months ended June 30, 2021 was $310 million. As of June 30, 2021, MPLX had agreements to acquire 126,293 additional common units for $4 million, which settled in early July 2021. As of June 30, 2021, $657 million remained available under the authorization for future unit repurchases.
We may utilize various methods to effect the repurchases, which could include open market repurchases, negotiated block transactions, tender offers, accelerated share repurchases or open market solicitations for shares, some of which may be effected through Rule 10b5-1 plans. The timing and amount of future repurchases, if any, will depend upon several factors, including market and business conditions, and such repurchases may be discontinued at any time.
Contractual Cash Obligations
As of June 30, 2021, our contractual cash obligations included long-term debt, capital and operating lease obligations, purchase obligations and other long-term liabilities. During the first six months of 2021, our long-term debt commitments decreased approximately $3.97 billion primarily due to the repayment of $1.3 billion of MPC senior notes, net repayment of $1.0 billion under the MPC commercial paper program, the redemption of $750 million of MPLX senior notes and net repayment of $175 million under the MPLX revolving credit facility.
During the quarter, we terminated a transportation services agreement with a total commitment of approximately $560 million through the year 2028. There were no other material changes to our contractual cash obligations outside the ordinary course of business since December 31, 2020.
Off-Balance Sheet Arrangements
Off-balance sheet arrangements comprise those arrangements that may potentially impact our liquidity, capital resources and results of operations, even though such arrangements are not recorded as liabilities under U.S. GAAP. Our off-balance sheet arrangements are limited to indemnities and guarantees that are described below. Although these arrangements serve a variety of our business purposes, we are not dependent on them to maintain our liquidity and capital resources, and we are not aware of any circumstances that are reasonably likely to cause the off-balance sheet arrangements to have a material adverse effect on our liquidity and capital resources.
We have provided various guarantees related to equity method investees. These arrangements are described in Note 24 to the unaudited consolidated financial statements.
ENVIRONMENTAL MATTERS AND COMPLIANCE COSTS
We have incurred and may continue to incur substantial capital, operating and maintenance, and remediation expenditures as a result of environmental laws and regulations. If these expenditures, as with all costs, are not ultimately reflected in the prices of our products and services, our operating results will be adversely affected. We believe that substantially all of our competitors must comply with similar environmental laws and regulations. However, the specific impact on each competitor may vary depending on a number of factors, including the age and location of its operating facilities, marketing areas, production processes and whether it is also engaged in the petrochemical business or the marine transportation of crude oil and refined products.
There have been no significant changes to our environmental matters and compliance costs during the six months ended June 30, 2021.
CRITICAL ACCOUNTING ESTIMATES
As of June 30, 2021, there have been no significant changes to our critical accounting estimates since our Annual Report on Form 10-K for the year ended December 31, 2020.
ACCOUNTING STANDARDS NOT YET ADOPTED
We have not identified any recent accounting pronouncements that are expected to have a material impact on our financial condition, results of operations or cash flows upon adoption.
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ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
For a detailed discussion of our risk management strategies and our derivative instruments, see Item 7A. Quantitative and Qualitative Disclosures about Market Risk in our Annual Report on Form 10-K for the year ended December 31, 2020.
See Notes 17 and 18 to the unaudited consolidated financial statements for more information about the fair value measurement of our derivatives, as well as the amounts recorded in our consolidated balance sheets and statements of income. We do not designate any of our commodity derivative instruments as hedges for accounting purposes.
The following table includes the composition of net gains and losses on our commodity derivative positions as of June 30, 2021 and 2020, respectively.
 Six Months Ended 
June 30,
(In millions)20212020
Realized gain (loss) on settled derivative positions$(172)$147 
Unrealized loss on open net derivative positions(76)(44)
Net gain (loss)$(248)$103 
See Note 18 to the unaudited consolidated financial statements for additional information on our open derivative positions at June 30, 2021.
Sensitivity analysis of the effects on income from operations (“IFO”) of hypothetical 10 percent and 25 percent increases and decreases in commodity prices for open commodity derivative instruments as of June 30, 2021 is provided in the following table.
 Change in IFO from a
Hypothetical Price
Increase of
Change in IFO from a
Hypothetical Price
Decrease of
(In millions)10%25%10%25%
As of June 30, 2021
Crude$(29)$(74)$30 $74 
Refined products(33)(82)33 82 
Blending products(15)(37)15 37 
Soybean oil(19)(47)19 47 
Embedded derivatives(10)(25)10 25 
We remain at risk for possible changes in the market value of commodity derivative instruments; however, such risk should be mitigated by price changes in the underlying physical commodity. Effects of these offsets are not reflected in the above sensitivity analysis.
We evaluate our portfolio of commodity derivative instruments on an ongoing basis and add or revise strategies in anticipation of changes in market conditions and in risk profiles. Changes to the portfolio after June 30, 2021 would cause future IFO effects to differ from those presented above.
Sensitivity analysis of the effect of a hypothetical 100-basis-point change in interest rates on long-term debt, including the portion classified as current and excluding finance leases, as of June 30, 2021 is provided in the following table. Fair value of cash and cash equivalents, receivables, accounts payable and accrued interest approximate carrying value and are relatively insensitive to changes in interest rates due to the short-term maturity of the instruments. Accordingly, these instruments are excluded from the table.
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(In millions)
Fair Value as of June 30, 2021(a)
Change in
Fair Value
(b)
Change in Net Income for the Six Months Ended
June 30, 2021(c)
Long-term debt
Fixed-rate$30,782 
 
$2,784 n/a
Variable-rate1,000 12 14 
(a)Fair value was based on market prices, where available, or current borrowing rates for financings with similar terms and maturities.
(b)Assumes a 100-basis-point decrease in the weighted average yield-to-maturity at June 30, 2021.
(c)Assumes a 100-basis-point change in interest rates. The change to net income was based on the weighted average balance of debt outstanding for the six months ended June 30, 2021.
At June 30, 2021, our portfolio of long-term debt was comprised of fixed-rate and variable-rate instruments. The fair value of our fixed-rate debt is relatively sensitive to interest rate fluctuations. Our sensitivity to interest rate declines and corresponding increases in the fair value of our debt portfolio unfavorably affects our results of operations and cash flows only when we elect to repurchase or otherwise retire fixed-rate debt at prices above carrying value. Interest rate fluctuations generally do not impact the fair value of borrowings under our variable-rate debt, but may affect our results of operations and cash flows.
See Note 17 to the unaudited consolidated financial statements for additional information on the fair value of our debt.
ITEM 4. CONTROLS AND PROCEDURES
Disclosure Controls and Procedures
An evaluation of the effectiveness of the design and operation of our disclosure controls and procedures (as defined in Rule 13a-15(e) under the Securities Exchange Act of 1934, as amended) was carried out under the supervision and with the participation of our management, including our chief executive officer and chief financial officer. Based upon that evaluation, the chief executive officer and chief financial officer concluded that the design and operation of these disclosure controls and procedures were effective as of June 30, 2021, the end of the period covered by this report.
Changes in Internal Control over Financial Reporting
During the quarter ended June 30, 2021, there were no changes in our internal control over financial reporting that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.
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PART II – OTHER INFORMATION
ITEM 1. LEGAL PROCEEDINGS
We are the subject of, or a party to, a number of pending or threatened legal actions, contingencies and commitments involving a variety of matters, including laws and regulations relating to the environment. While it is possible that an adverse result in one or more of the lawsuits or proceedings in which we are a defendant could be material to us, based upon current information and our experience as a defendant in other matters, we believe that these lawsuits and proceedings, individually or in the aggregate, will not have a material adverse effect on our consolidated results of operations, financial position or cash flows.
Item 103 of Regulation S-K promulgated by the SEC requires disclosure of certain environmental matters when a governmental authority is a party to the proceedings and such proceedings involve potential monetary sanctions, unless we reasonably believe that the matter will result in no monetary sanctions, or in monetary sanctions, exclusive of interest and costs, of less than $300,000.
Except as described below, there have been no material changes to the matters previously disclosed in our Annual Report on Form 10-K, as updated in our Quarterly Report on Form 10-Q for the quarter ended March 31, 2021.
Dakota Access Pipeline
In connection with MPLX’s 9.19 percent indirect interest in a joint venture (“Dakota Access”) that owns and operates the Dakota Access Pipeline and Energy Transfer Crude Oil Pipeline projects, collectively referred to as the Bakken Pipeline system, MPLX entered into a Contingent Equity Contribution Agreement. MPLX, along with the other joint venture owners in the Bakken Pipeline system, has agreed to make equity contributions to the joint venture upon certain events occurring to allow the entities that own and operate the Bakken Pipeline system to satisfy their senior note payment obligations. The senior notes were issued to repay amounts owed by the pipeline companies to fund the cost of construction of the Bakken Pipeline system.
In March 2020, the U.S. District Court for the District of Columbia (the “D.D.C.”) ordered the U.S. Army Corps of Engineers (“Army Corps”), which granted permits and an easement for the Bakken Pipeline system, to conduct a full environmental impact statement (“EIS”), and further requested briefing on whether an easement necessary for the operation of the Bakken Pipeline system should be vacated while the EIS is being prepared.
On July 6, 2020, the D.D.C. ordered vacatur of the easement to cross Lake Oahe during the pendency of an EIS and further ordered a shut down of the pipeline by August 5, 2020. The D.D.C. denied a motion to stay that order. Dakota Access and the Army Corps appealed the D.D.C.’s orders to the U.S. Court of Appeals for the District of Columbia Circuit (the “Court of Appeals”). On July 14, 2020, the Court of Appeals issued an administrative stay while the court considered Dakota Access and the Army Corps’ emergency motion for stay pending appeal. On August 5, 2020, the Court of Appeals stayed the D.D.C.’s injunction that required the pipeline be shutdown and emptied of oil by August 5, 2020. The Court of Appeals denied a stay of the D.D.C.’s March order, which required the EIS, and further denied a stay of the D.D.C.’s July order, which vacated the easement. On January 26, 2021, the Court of Appeals upheld the D.D.C.’s order vacating the easement while the Army Corps prepares the EIS. The Court of Appeals reversed the D.D.C.’s order to the extent it directed that the pipeline be shutdown and emptied of oil. On May 21, 2021, the D.D.C. denied a renewed request for an injunction. On June 22, 2021, the D.D.C. issued an order dismissing without prejudice the tribes’ claims against Dakota Access. The judge noted that the plaintiffs may move to reopen the case in the event of a violation of the court’s prior orders. The pipeline remains operational.
If the pipeline is temporarily shut down pending completion of the EIS, MPLX would have to contribute its 9.19 percent pro rata share of funds required to pay interest accruing on the notes and any portion of the principal that matures while the pipeline is shutdown. It is expected that MPLX would contribute its 9.19 percent pro rata share of any costs to remediate any deficiencies to reinstate the permit and/or return the pipeline into operation. If the vacatur of the easement permit results in a permanent shutdown of the pipeline, MPLX would have to contribute its 9.19 percent pro rata share of the cost to redeem the bonds (including the one percent redemption premium required pursuant to the indenture governing the notes) and any accrued and unpaid interest. As of June 30, 2021, our maximum potential undiscounted payments under the Contingent Equity Contribution Agreement were approximately $230 million.
ITEM 1A. RISK FACTORS
There have been no material changes from the risk factors previously disclosed in our Annual Report on Form 10-K for the year ended December 31, 2020.
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ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS
The following table sets forth a summary of our purchases during the quarter ended June 30, 2021, of equity securities that are registered by MPC pursuant to Section 12 of the Securities Exchange Act of 1934, as amended.
Period
Total Number
of Shares
Purchased
(a)
Average
Price
Paid per
Share
(b)
Total Number of
Shares Purchased as
Part of Publicly
Announced Plans
or Programs
Maximum Dollar
Value of Shares that
May Yet Be Purchased
Under the Plans or
Programs
(c)(d)
04/01/2021-04/30/202184,085 $54.66 — $2,954,604,016 
05/01/2021-05/31/20216,562 59.32 — $10,000,000,000 
06/01/2021-06/30/202115,573,870 63.00 15,573,365 $9,018,878,009 
Total15,664,517 62.95 15,573,365 
(a)The amounts in this column include 84,085, 6,562 and 505 shares of our common stock delivered by employees to MPC, upon vesting of restricted stock, to satisfy tax withholding requirements in April, May and June, respectively.
(b)Amounts in this column reflect the weighted average price paid for shares repurchased under our share repurchase authorizations and for shares tendered to us in satisfaction of employee tax withholding obligations upon the vesting of restricted stock granted under our stock plans.
(c)On April 30, 2018, we announced that our board of directors had approved a $5 billion share repurchase authorization in addition to the remaining authorization pursuant to the May 31, 2017 announcement. On May 14, 2021, we announced that our board of directors had approved an additional $7.1 billion share repurchase authorization. These share purchase authorizations have no expiration date.
(d)In the second quarter of 2021, we used cash on hand to repurchase 15,573,365 shares of common stock under the modified Dutch auction tender offer for a total cost of $981 million, excluding fees and expenses.


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ITEM 6. EXHIBITS
   Incorporated by ReferenceFiled
Herewith
Furnished
Herewith
Exhibit
Number
Exhibit DescriptionFormExhibitFiling
Date
SEC File
No.
2.1† 8-K2.15/8/2019001-35054
2.2† 8-K2.18/3/2020001-35054
2.310-K2.72/26/2021001-35054
2.4† 8-K2.35/14/2021001-35054
3.18-K3.210/1/2018001-35054
3.28-K3.18/2/2021001-35054
10.18-K10.15/4/2021001-35054
31.1X
31.2X
32.1X
32.2X
101.INSInline XBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded with the Inline XBRL document.
101.SCHInline XBRL Taxonomy Extension Schema Document.X
101.PREInline XBRL Taxonomy Extension Presentation Linkbase Document.X
101.CALInline XBRL Taxonomy Extension Calculation Linkbase Document.X
101.DEFInline XBRL Taxonomy Extension Definition Linkbase Document.X
101.LABInline XBRL Taxonomy Extension Label Linkbase Document.X
104Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101).
†    The exhibits and schedules have been omitted pursuant to Item 601(b)(2) of Regulation S-K and will be provided to the Securities and Exchange Commission upon request.

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SIGNATURES
Pursuant to the requirements 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.
 
August 4, 2021MARATHON PETROLEUM CORPORATION
By:/s/ John J. Quaid
John J. Quaid
Senior Vice President and Controller

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