Item 1. Financial Statements

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Item 1. Financial Statements

Marathon Petroleum Corporation

Consolidated Statements of Income (Unaudited)

Three Months Ended September 30,Nine Months Ended September 30,
(In millions, except per share data)2024202320242023
Revenues and other income:
Sales and other operating revenues$35,107$40,917$105,727$112,124
Income from equity method investments219215796547
Net gain (loss) on disposal of assets(2)11017126
Other income49341406687
Total revenues and other income35,37341,583106,946113,484
Costs and expenses:
Cost of revenues (excludes items below)32,14434,92895,68295,984
Depreciation and amortization8468452,5112,479
Selling, general and administrative expenses8158242,4172,219
Other taxes219233681683
Total costs and expenses34,02436,830101,291101,365
Income from operations1,3494,7535,65512,119
Net interest and other financial costs221118594414
Income before income taxes1,1284,6355,06111,705
Provision for income taxes1131,0047792,410
Net income1,0153,6314,2829,295
Less net income attributable to:
Redeemable noncontrolling interest6252171
Noncontrolling interests3873261,187994
Net income attributable to MPC$622$3,280$3,074$8,230
Per share data (See Note 7)
Basic:
Net income attributable to MPC per share$1.88$8.31$8.85$19.66
Weighted average shares outstanding331394347418
Diluted:
Net income attributable to MPC per share$1.87$8.28$8.83$19.57
Weighted average shares outstanding332396348420

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 September 30,Nine Months Ended September 30,
(Millions of dollars)2024202320242023
Net income$1,015$3,631$4,282$9,295
Defined benefit plans:
Actuarial changes, net of tax of $1, $(2), $2 and $(3), respectively2(6)5(10)
Prior service, net of tax of $(3), $(5), $(10) and $(13), respectively(10)(13)(31)(38)
Other, net of tax of $1, $—, $— and $(1), respectively2—(1)(3)
Other comprehensive loss(6)(19)(27)(51)
Comprehensive income1,0093,6124,2559,244
Less comprehensive income attributable to:
Redeemable noncontrolling interest6252171
Noncontrolling interests3873261,187994
Comprehensive income attributable to MPC$616$3,261$3,047$8,179

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)September 30, 2024December 31, 2023
Assets
Cash and cash equivalents$4,002$5,443
Short-term investments1,1414,781
Receivables, less allowance for doubtful accounts of $72 and $44, respectively10,18012,187
Inventories9,8869,317
Other current assets740403
Total current assets25,94932,131
Equity method investments6,9766,260
Property, plant and equipment, net34,54235,112
Goodwill8,2448,244
Right of use assets1,1921,233
Other noncurrent assets2,9303,007
Total assets$79,833$85,987
Liabilities
Accounts payable$12,763$13,761
Payroll and benefits payable9671,115
Accrued taxes1,3021,221
Debt due within one year4,1671,954
Operating lease liabilities485454
Other current liabilities1,3841,645
Total current liabilities21,06820,150
Long-term debt24,05325,329
Deferred income taxes5,7665,834
Defined benefit postretirement plan obligations1,1911,102
Long-term operating lease liabilities691764
Deferred credits and other liabilities1,3521,409
Total liabilities54,12154,588
Commitments and contingencies (see Note 23)
Redeemable noncontrolling interest203895
Equity
Preferred stock, no shares issued and outstanding (par value $0.01 per share, 30 million shares authorized)——
Common stock:
Issued – 994 million and 993 million shares (par value $0.01 per share, 2 billion shares authorized)1010
Held in treasury, at cost – 669 million and 625 million shares(51,320)(43,502)
Additional paid-in capital33,63033,465
Retained earnings36,77134,562
Accumulated other comprehensive loss(158)(131)
Total MPC stockholders’ equity18,93324,404
Noncontrolling interests6,5766,100
Total equity25,50930,504
Total liabilities, redeemable noncontrolling interest and equity$79,833$85,987

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)

Nine Months Ended September 30,
(Millions of dollars)20242023
Operating activities:
Net income$4,282$9,295
Adjustments to reconcile net income to net cash provided by operating activities:
Amortization of deferred financing costs and debt discount(44)(51)
Depreciation and amortization2,5112,479
Pension and other postretirement benefits, net18(210)
Deferred income taxes(132)(64)
Net gain on disposal of assets(17)(126)
Income from equity method investments(796)(547)
Distributions from equity method investments882686
Changes in the fair value of derivative instruments4740
Changes in:
Current receivables2,0611,533
Inventories(588)(1,313)
Current liabilities and other current assets(1,546)1,636
Right of use assets and operating lease liabilities, net(1)(3)
All other, net(219)(361)
Net cash provided by operating activities6,45812,994
Investing activities:
Additions to property, plant and equipment(1,723)(1,358)
Acquisitions, net of cash acquired(622)—
Disposal of assets433
Investments – acquisitions and contributions(450)(362)
– redemptions, repayments, return of capital and sales proceeds141270
Purchases of short-term investments(2,949)(7,137)
Sales of short-term investments2,2951,874
Maturities of short-term investments4,3843,901
All other, net147648
Net cash provided by (used in) investing activities1,227(2,131)
Financing activities:
Long-term debt – borrowings1,6311,589
– repayments(811)(1,062)
Debt issuance costs(15)(15)
Issuance of common stock1960
Common stock repurchased(7,815)(9,067)
Dividends paid(862)(950)
Distributions to noncontrolling interests(1,005)(943)
Repurchases of noncontrolling interests(226)—
Redemption of noncontrolling interests - preferred units—(600)
All other, net(43)(50)
Net cash used in financing activities(9,127)(11,038)
Net change in cash, cash equivalents and restricted cash(1,442)(175)
Cash, cash equivalents and restricted cash at beginning of period(a)5,4468,631
Cash, cash equivalents and restricted cash at end of period(a)$4,004$8,456

(a)Restricted cash is included in other current assets 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 Redeemable 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, 2023993$10(625)$(43,502)$33,465$34,562$(131)$6,100$30,504$895
Net income—————937—3651,30210
Dividends declared on common stock ($0.825 per share)—————(299)——(299)—
Distributions to noncontrolling interests———————(314)(314)(23)
Other comprehensive loss——————(12)—(12)—
Shares repurchased——(13)(2,172)————(2,172)—
Share-based compensation————(7)(1)—(1)(9)—
Equity transactions of MPLX————72——138210(321)
Balance as of March 31, 2024993$10(638)$(45,674)$33,530$35,199$(143)$6,288$29,210$561
Net income—————1,515—4351,9505
Dividends declared on common stock ($0.825 per share)—————(290)——(290)—
Distributions to noncontrolling interests———————(325)(325)(10)
Other comprehensive loss——————(9)—(9)—
Shares repurchased——(15)(2,918)————(2,918)—
Share-based compensation1———26(1)—429—
Equity transactions of MPLX————79——160239(354)
Balance as of June 30, 2024994$10(653)$(48,592)$33,635$36,423$(152)$6,562$27,886$202
Net income—————622—3871,0096
Dividends declared on common stock ($0.825 per share)—————(273)——(273)—
Distributions to noncontrolling interests———————(328)(328)(5)
Other comprehensive loss——————(6)—(6)—
Shares repurchased——(16)(2,728)————(2,728)—
Share-based compensation————15(1)—317—
Equity transactions of MPLX————(20)——(48)(68)—
Balance as of September 30, 2024994$10(669)$(51,320)$33,630$36,771$(158)$6,576$25,509$203

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

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Marathon Petroleum Corporation

Consolidated Statements of Equity and Redeemable 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, 2022990$10(536)$(31,841)$33,402$26,142$2$6,404$34,119$968
Net income—————2,724—3373,06123
Dividends declared on common stock ($0.75 per share)—————(336)——(336)—
Distributions to noncontrolling interests———————(306)(306)(23)
Other comprehensive loss——————(11)—(11)—
Shares repurchased——(25)(3,238)————(3,238)—
Share-based compensation1———3———3—
Equity transactions of MPLX————3(2)—(598)(597)—
Balance as of March 31, 2023991$10(561)$(35,079)$33,408$28,528$(9)$5,837$32,695$968
Net income—————2,226—3312,55723
Dividends declared on common stock ($0.75 per share)—————(312)——(312)—
Distributions to noncontrolling interests———————(283)(283)(23)
Other comprehensive loss——————(21)—(21)—
Shares repurchased——(26)(3,040)————(3,040)—
Share-based compensation1———3——14—
Equity transactions of MPLX——————————
Balance as of June 30, 2023992$10(587)$(38,119)$33,411$30,442$(30)$5,886$31,600$968
Net income—————3,280—3263,60625
Dividends declared on common stock ($0.75 per share)—————(297)——(297)—
Distributions to noncontrolling interests———————(285)(285)(23)
Other comprehensive loss——————(19)—(19)—
Shares repurchased——(20)(2,830)————(2,830)—
Share-based compensation1———44(1)—144—
Equity transactions of MPLX————(29)——389—
Balance as of September 30, 2023993$10(607)$(40,949)$33,426$33,424$(49)$5,966$31,828$970

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. See Note 4.

Basis of Presentation

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. Certain information and disclosures derived from our audited annual financial statements, prepared in accordance with GAAP, have been condensed or omitted from these interim 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, 2023. The results of operations for the three and nine months ended September 30, 2024 are not necessarily indicative of the results to be expected for the full year.

These consolidated financial statements include the accounts of our majority-owned, controlled subsidiaries, including MPLX. All significant intercompany transactions and accounts have been eliminated. Due to our ownership of the general partner interest of MPLX, we have determined that we control MPLX and therefore we consolidate MPLX and record a noncontrolling interest for the interest owned by the public. Changes in ownership interest in consolidated subsidiaries that do not result in a change in control are recorded as equity transactions. Investments in entities over which we have significant influence, but not control, are accounted for using the equity method of accounting. This includes entities in which we hold majority ownership but the minority shareholders have substantive participating rights.

Certain prior period financial statement amounts have been reclassified to conform to current period presentation.

2. Accounting Standards and Disclosure Rules

Recently Adopted

During the first quarter of 2024, we adopted ASU 2023-01, Leases (Topic 842): Common Control Arrangements. The adoption of this ASU did not have a material impact on our financial statements or disclosures.

Not Yet Adopted

ASU 2024-03, Income Statement – Reporting Comprehensive Income – Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses

In November 2024, the FASB issued an ASU to require more detailed information about specified categories of expenses (purchases of inventory, employee compensation, depreciation, amortization, and depletion) included in certain expense captions presented on the face of the income statement. This ASU is effective for fiscal years beginning after December 15, 2026, and for interim periods within fiscal years beginning after December 15, 2027. Early adoption is permitted. The amendments may be applied either (1) prospectively to financial statements issued for reporting periods after the effective date of this ASU or (2) retrospectively to all prior periods presented in the financial statements. We are currently evaluating the impact this ASU will have on our disclosures.

SEC Release No. 33-11275, The Enhancement and Standardization of Climate-Related Disclosures for Investors

In March 2024, the SEC adopted rules under SEC Release No. 33-11275, The Enhancement and Standardization of Climate-Related Disclosures for Investors, which requires registrants to provide certain climate-related information in their annual reports. As part of the disclosures, material impacts from severe weather events and other natural conditions will be required in the audited financial statements. In April 2024, the SEC voluntarily stayed the rules pending judicial review. Pending the results of the judicial review, the disclosure requirements are effective for the Company’s Annual Report on Form 10-K for the fiscal year

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ending December 31, 2025. We are evaluating the impact these rules will have on our disclosures and monitoring the status of the judicial review.

ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures

In December 2023, the FASB issued an ASU to update income tax disclosure requirements to provide consistent categories and greater disaggregation of information in the rate reconciliation and to disaggregate income taxes paid by jurisdiction. This ASU is effective for fiscal years beginning after December 15, 2024. Early adoption is permitted. The amendments should be applied on a prospective basis, but retrospective application is permitted. This standard will have no impact on the consolidated financial statements but will result in additional disclosure.

ASU 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures

In November 2023, the FASB issued an ASU to update reportable segment disclosure requirements primarily by requiring enhanced disclosures about significant segment expenses. This ASU is effective for fiscal years beginning after December 15, 2023, and for interim periods within fiscal years beginning after December 15, 2024. Early adoption is permitted. The amendments should be applied retrospectively to all prior periods presented in the financial statements. This standard will have no impact on the consolidated financial statements but will result in additional disclosure.

3. Short-Term Investments

Investments Components

The components of investments were as follows:

September 30, 2024
(Millions of dollars)Fair Value LevelAmortized CostUnrealized GainsUnrealized LossesFair ValueCash and Cash EquivalentsShort-term Investments
Available-for-sale debt securities
Commercial paperLevel 2$813$—$—$813$64$749
Certificates of deposit and time depositsLevel 21,284——1,2841,000284
U.S. government securitiesLevel 189——89—89
Corporate notes and bondsLevel 219——19—19
Total available-for-sale debt securities$2,205$—$—$2,205$1,064$1,141
Cash2,9382,938—
Total$5,143$4,002$1,141
December 31, 2023
(Millions of dollars)Fair Value LevelAmortized CostUnrealized GainsUnrealized LossesFair ValueCash and Cash EquivalentsShort-term Investments
Available-for-sale debt securities
Commercial paperLevel 2$3,154$2$—$3,156$281$2,875
Certificates of deposit and time depositsLevel 21,8361—1,8378001,037
U.S. government securitiesLevel 1785—(1)784—784
Corporate notes and bondsLevel 285——85—85
Total available-for-sale debt securities$5,860$3$(1)$5,862$1,081$4,781
Cash4,3624,362—
Total$10,224$5,443$4,781

Our investment policy includes concentration limits and credit rating requirements, which limit our investments to high quality, short term and highly liquid securities.

Realized gains/losses were not material. All of our available-for-sale debt securities held as of September 30, 2024 mature within one year or less or are readily available for use.

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4**.** 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 September 30, 2024, we owned approximately 64 percent of the outstanding MPLX common units compared to 65 percent as of December 31, 2023. Our ownership was impacted by changes in the redeemable non-controlling interest and unit repurchases.

Unit Repurchase Program

On August 2, 2022, MPLX announced its board of directors approved a $1.0 billion unit repurchase authorization. This unit repurchase authorization has no expiration date. MPLX may utilize various methods to effect the repurchases, which could include open market repurchases, negotiated block transactions, accelerated unit repurchases, tender offers or open market solicitations for units, 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 suspended, discontinued or restarted at any time.

Total unit repurchases were as follows for the respective periods:

Three Months Ended September 30,Nine Months Ended September 30,
(In millions, except per unit data)2024202320242023
Number of common units repurchased2—6—
Cash paid for common units repurchased$76$—$226$—
Average cost per unit$42.89$—$41.32$—

As of September 30, 2024, MPLX had approximately $620 million remaining under its unit repurchase authorization.

Redemption of the Series B Preferred Units

On February 15, 2023, MPLX exercised its right to redeem all of its 600,000 outstanding preferred units (the “Series B preferred units”). MPLX paid unitholders the Series B preferred unit redemption price of $1,000 per unit. The final semi-annual distribution on the Series B preferred units was paid on February 15, 2023 in the usual manner.

The excess of the total redemption price of $600 million paid to Series B preferred unitholders over the carrying value of the Series B preferred units on the redemption date resulted in a $2 million net reduction to retained earnings.

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 corporate and our Midstream segment.

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:

Three Months Ended September 30,Nine Months Ended September 30,
(Millions of dollars)2024202320242023
Increase (decrease) due to change in ownership$(29)$(38)$198$(37)
Tax impact99(67)11
Increase (decrease) in MPC's additional paid-in capital, net of tax$(20)$(29)$131$(26)

5**.** 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

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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 23 for more information. The assets of MPLX can only be used to settle its own obligations and its creditors have no recourse to our assets, except as noted earlier.

The following table presents balance sheet information for the assets and liabilities of MPLX, which are included in our consolidated balance sheets.

(Millions of dollars)September 30, 2024December 31, 2023
Assets
Cash and cash equivalents$2,426$1,048
Receivables, less allowance for doubtful accounts757836
Inventories171159
Other current assets3733
Equity method investments4,5583,743
Property, plant and equipment, net19,15319,264
Goodwill7,6457,645
Right of use assets271264
Other noncurrent assets1,5361,644
Liabilities
Accounts payable$648$723
Accrued taxes10579
Debt due within one year2,8361,135
Operating lease liabilities4945
Other current liabilities343336
Long-term debt19,25019,296
Deferred income taxes1616
Long-term operating lease liabilities217211
Deferred credits and other liabilities467476

6**.** Related Party Transactions

Transactions with related parties were as follows:

Three Months Ended September 30,Nine Months Ended September 30,
(Millions of dollars)2024202320242023
Sales to related parties$213$206$711$658
Purchases from related parties6244841,7781,275

Sales to related parties, which are included in sales and other operating revenues, consist primarily of refined product sales and renewable feedstock 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 and renewable fuels from certain of our equity affiliates.

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7**.** Earnings Per Share

We compute basic earnings per share by dividing net income 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 per share using the two-class method. Diluted income per share assumes exercise of certain share-based compensation awards, provided the effect is not anti-dilutive.

Three Months Ended September 30,Nine Months Ended September 30,
(In millions, except per share data)2024202320242023
Net income$1,015$3,631$4,282$9,295
Net income attributable to noncontrolling interest(393)(351)(1,208)(1,065)
Net income allocated to participating securities—(2)(2)(5)
Redemption of preferred units———(2)
Income available to common stockholders$622$3,278$3,072$8,223
Weighted average common shares outstanding:
Basic331394347418
Effect of dilutive securities1212
Diluted332396348420
Income available to common stockholders per share:
Basic:
Net income attributable to MPC per share$1.88$8.31$8.85$19.66
Diluted:
Net income attributable to MPC per share$1.87$8.28$8.83$19.57

Potential common shares that were anti-dilutive and, therefore, omitted from the diluted share calculation, were immaterial for all periods.

8. Equity

On April 30, 2024, MPC announced that our board of directors approved a $5.0 billion share repurchase authorization. As of September 30, 2024, $4.04 billion remained available for repurchase under the share repurchase authorization. This share repurchase authorization has no expiration date.

We may utilize various methods to effect the repurchases, which could include open market repurchases, negotiated block transactions, accelerated share repurchases, tender offers 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 suspended, discontinued or restarted at any time.

Total share repurchases were as follows for the respective periods:

Three Months Ended September 30,Nine Months Ended September 30,
(In millions, except per share data)2024202320242023
Number of shares repurchased16204471
Cash paid for shares repurchased$2,701$2,819$7,815$9,067
Average cost per share(a)$170.99$139.84$175.20$127.09

(a) The average cost per share includes excise tax on share repurchases resulting from the Inflation Reduction Act of 2022, but the excise tax does not reduce the remaining share repurchase authorization.

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9**.** 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, including renewable 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, including renewable diesel, 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, to independent entrepreneurs who operate primarily Marathon® branded outlets and through long-term fuel supply contracts with direct dealers who operate locations mainly under the ARCO® brand.

  • Midstream – gathers, transports, stores and distributes crude oil, refined products, including renewable diesel, and other hydrocarbon-based products principally for the Refining & Marketing segment via refining logistics assets, pipelines, terminals, towboats and barges; gathers, processes and transports natural gas; and transports, fractionates, stores and markets NGLs. The Midstream segment primarily reflects the results of MPLX.

Our chief operating decision maker (“CODM”) evaluates the performance of our segments using segment adjusted EBITDA. Our CODM is the chief executive officer. Amounts included in income before income taxes and excluded from segment adjusted EBITDA include: (i) depreciation and amortization; (ii) net interest and other financial costs; (iii) turnaround expenses; and (iv) other adjustments as deemed necessary. These items are either: (i) believed to be non-recurring in nature; (ii) not believed to be allocable or controlled by the segment; or (iii) not tied to the operational performance of the segment. 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.

Three Months Ended September 30,Nine Months Ended September 30,
(Millions of dollars)2024202320242023
Segment adjusted EBITDA for reportable segments
Refining & Marketing$1,053$4,373$4,899$11,389
Midstream1,6281,5394,8374,601
Total reportable segments$2,681$5,912$9,736$15,990
Reconciliation of segment adjusted EBITDA for reportable segments to income before income taxes
Total reportable segments$2,681$5,912$9,736$15,990
Corporate(196)(204)(600)(533)
Refining planned turnaround costs(290)(153)(1,121)(902)
Garyville incident response costs—(63)—(63)
Gain on sale of assets(a)—106151106
Depreciation and amortization(846)(845)(2,511)(2,479)
Net interest and other financial costs(221)(118)(594)(414)
Income before income taxes$1,128$4,635$5,061$11,705

(a)The first nine months of 2024 includes the gain from the Whistler Joint Venture Transaction (as defined in Note 13). 2023 includes the gain on the sale of our interest in South Texas Gateway Terminal LLC. See Note 13 for additional information.

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Three Months Ended September 30,Nine Months Ended September 30,
(Millions of dollars)2024202320242023
Sales and other operating revenues
Refining & Marketing
Revenues from external customers(a)$33,775$39,625$101,914$108,455
Intersegment revenues363010778
Refining & Marketing segment revenues33,81139,655102,021108,533
Midstream
Revenues from external customers(a)1,3321,2923,8133,669
Intersegment revenues1,4681,4344,3194,143
Midstream segment revenues2,8002,7268,1327,812
Total segment revenues36,61142,381110,153116,345
Less: intersegment revenues1,5041,4644,4264,221
Consolidated sales and other operating revenues(a)$35,107$40,917$105,727$112,124

(a) Includes sales to related parties. See Note 6 for additional information.

Three Months Ended September 30,Nine Months Ended September 30,
(Millions of dollars)2024202320242023
Income from equity method investments
Refining & Marketing$43$24$85$5
Midstream176191560542
Total segment income from equity method investments219215645547
Corporate(a)——151—
Consolidated income from equity method investments$219$215$796$547
Depreciation and amortization
Refining & Marketing4654631,3951,411
Midstream3533401,041988
Total segment depreciation and amortization8188032,4362,399
Corporate28427580
Consolidated depreciation and amortization$846$845$2,511$2,479
Capital expenditures
Refining & Marketing$372$255$967$919
Midstream5572341,125748
Total segment capital expenditures and investments9294892,0921,667
Less investments in equity method investees27166450362
Plus:
Corporate7242564
Capitalized interest1493843
Consolidated capital expenditures(b)$679$456$1,705$1,412

(a)2024 represents the gain from the Whistler Joint Venture Transaction. See Note 13 for additional information.

(b)Includes changes in capital expenditure accruals. See Note 19 for a reconciliation of total capital expenditures to additions to property, plant and equipment for the nine months ended September 30, 2024 and 2023 as reported in the consolidated statements of cash flows.

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10**.** Net Interest and Other Financial Costs

Net interest and other financial costs were as follows:

Three Months Ended September 30,Nine Months Ended September 30,
(Millions of dollars)2024202320242023
Interest income$(102)$(141)$(308)$(381)
Interest expense3523311,034994
Interest capitalized(15)(11)(40)(47)
Pension and other postretirement non-service costs(a)(8)(20)(30)(68)
Loss on extinguishment of debt———9
Investments - net premium (discount) amortization(20)(41)(90)(100)
Other financial costs14—287
Net interest and other financial costs$221$118$594$414

(a)See Note 22.

11. Income Taxes

We recorded a combined federal, state and foreign income tax provision of $113 million and $779 million for the three and nine months ended September 30, 2024, respectively, which was lower than the U.S. statutory rate primarily due to permanent tax benefits related to net income attributable to noncontrolling interests offset by state taxes.

We recorded a combined federal, state and foreign income tax provision of $1.0 billion for the three months ended September 30, 2023, which was higher than the U.S. statutory rate primarily due to state taxes offset by permanent tax benefits related to net income attributable to noncontrolling interests and foreign derived intangible income. We recorded a combined federal, state and foreign income tax provision of $2.41 billion for the nine months ended September 30, 2023, which was lower than the U.S. statutory rate primarily due to permanent tax benefits related to net income attributable to noncontrolling interests, a benefit related to foreign derived intangible income, offset by state taxes.

12. Inventories

(Millions of dollars)September 30, 2024December 31, 2023
Crude oil$3,449$3,211
Refined products5,2404,940
Materials and supplies1,1971,166
Total$9,886$9,317

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.

13**.** Equity Method Investments

BANGL, LLC Acquisition

On July 31, 2024, MPLX exercised its right of first offer under the BANGL, LLC joint venture agreement to purchase an additional 20 percent ownership interest in BANGL, LLC for $210 million cash, increasing total ownership interest to 45 percent (the “BANGL Transaction”). BANGL is a natural gas liquids pipeline system connecting the Delaware and Midland basins to the fractionation market in Sweeny, Texas. The purchase price of the additional 20 percent ownership interest in BANGL, LLC exceeded our portion of the underlying net assets of the joint venture by approximately $156 million.This basis difference is being amortized into net income over the remaining estimated useful lives of the underlying net assets. Following the BANGL Transaction, our investment in BANGL, LLC continues to be accounted for as an equity method investment.

Whistler Joint Venture Transaction

On May 29, 2024, MPLX and its joint venture partner contributed their respective membership interest in Whistler Pipeline, LLC to a newly formed joint venture, WPC Parent, LLC, and issued a 19 percent voting interest in WPC Parent, LLC to an affiliate of Enbridge Inc. in exchange for the contribution of cash and the Rio Bravo Pipeline project (collectively the “Whistler Joint Venture

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Transaction”). As a result of the transaction, MPLX’s voting interest in the joint venture was reduced from 37.5 percent to 30.4 percent. MPLX recognized a gain of $151 million at closing and received a cash distribution of $134 million, recorded as a return of capital, related to the dilution of the ownership interest. The gain is included in income from equity method investments on the accompanying consolidated statements of income and the return of capital is included in investments - redemptions, repayments, return of capital and sales proceeds within the investing section of the accompanying consolidated statements of cash flows.

Midstream Acquisition

On March 22, 2024, MPLX used $625 million of cash on hand to purchase additional ownership interest in existing joint ventures and gathering assets, which will enhance MPLX’s position in the Utica basin. Prior to the acquisition, MPLX owned an indirect interest in Ohio Gathering Company, L.L.C. (“OGC”) and a direct interest in Ohio Condensate Company, L.L.C. (“OCC”) and now owns a combined 73 percent interest in OGC and a 100 percent interest in OCC, and a dry gas gathering system in the Utica basin. OGC continues to be accounted for as an equity method investment as MPLX did not obtain control of OGC as a result of the transaction. OGC is considered a VIE and MPLX is not deemed to be the primary beneficiary due to voting rights on significant matters. The acquisition date fair value of our investment in OGC exceeded our portion of the underlying net assets of the joint venture by approximately $86 million. This basis difference is being amortized into net income over the remaining estimated useful lives of the underlying net assets. OCC was previously accounted for as an equity method investment, and it is now consolidated and included in our consolidated financial results.

The acquisition was accounted for as a business combination requiring all the acquired assets and liabilities to be remeasured to fair value resulting in a consolidated fair value of net assets and liabilities of $625 million. The fair value includes $518 million related to acquired interests in the joint ventures and the remaining balance related to other acquired assets and liabilities. The revaluation of MPLX’s existing 62 percent equity method investment in OCC resulted in a $20 million gain, which is included in net gain on disposal of assets on the accompanying consolidated statements of income. The fair value of equity method investments was based on a discounted cash flow model.

South Texas Gateway Terminal LLC

On August 1, 2023, MPC sold its 25 percent interest in South Texas Gateway Terminal LLC (“South Texas Gateway”) to an affiliate of Gibson Energy Inc. (“Gibson Energy”). Gibson Energy paid $1.1 billion in cash to acquire 100 percent of the membership interests of South Texas Gateway from MPC and its other members. South Texas Gateway owns an oil export facility in the U.S. Gulf Coast. MPC’s proceeds were $270 million, resulting in a gain of $106 million, which is included in net gain on disposal of assets on the accompanying consolidated statements of income.

LF Bioenergy Acquisition

On March 8, 2023, MPC announced the acquisition of a 49.9 percent interest in LF Bioenergy, an emerging producer of renewable natural gas (“RNG”) in the U.S., for approximately $56 million, which included funding for on-going operations and project development. LF Bioenergy has been focused on developing and growing a portfolio of dairy farm-based, low carbon intensity RNG projects.

LF Bioenergy is a VIE since it is unable to fund its operations without financial support from its equity owners. We are not the primary beneficiary of this VIE because we do not have the ability to control the activities that significantly influence the economic outcomes of the entity and, therefore, do not consolidate the entity. MPC accounts for our ownership interest in LF Bioenergy as an equity method investment.

14**.** Property, Plant and Equipment (PP&E)

September 30, 2024December 31, 2023
(Millions of dollars)Gross PP&EAccumulated DepreciationNet PP&EGross PP&EAccumulated DepreciationNet PP&E
Refining & Marketing$33,103$18,990$14,113$32,496$17,992$14,504
Midstream30,39010,49519,89529,6209,58920,031
Corporate1,6571,1235341,6321,055577
Total$65,150$30,608$34,542$63,748$28,636$35,112

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15**.** Fair Value Measurements

Fair Values—Recurring

The following tables present assets and liabilities accounted for at fair value on a recurring basis as of September 30, 2024 and December 31, 2023 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.

September 30, 2024
Fair Value Hierarchy
(Millions of dollars)Level 1Level 2Level 3Netting and Collateral(a)Net Carrying Value on Balance Sheet(b)Collateral Pledged Not Offset
Assets:
Commodity contracts$302$1$—$(282)$21$36
Liabilities:
Commodity contracts$295$—$—$(295)$—$—
Embedded derivatives in commodity contracts——69—69—
December 31, 2023
Fair Value Hierarchy
(Millions of dollars)Level 1Level 2Level 3Netting and Collateral(a)Net Carrying Value on Balance Sheet(b)Collateral Pledged Not Offset
Assets:
Commodity contracts$244$—$—$(220)$24$73
Liabilities:
Commodity contracts$249$—$—$(249)$—$—
Embedded derivatives in commodity contracts——61—61—

(a)Represents the impact of netting assets, liabilities and cash collateral when a legal right of offset exists. As of September 30, 2024, cash collateral of $13 million was netted with mark-to-market derivative liabilities. As of December 31, 2023, cash collateral of $29 million was netted with mark-to-market derivative liabilities.

(b)We have no derivative contracts which are subject to master netting arrangements reflected gross on the balance sheet.

Level 2 instruments include over-the-counter fixed swaps to mitigate the price risks from MPLX’s sale of propane under certain percent-of-proceeds and keep-whole arrangements. The swap valuations are based on observable inputs in the form of forward prices based on Mount Belvieu propane forward spot prices and contain no significant unobservable inputs.

Level 3 instruments relate to an embedded derivative liability for a natural gas purchase commitment embedded in a keep‑whole processing agreement. The fair value calculation for these Level 3 instruments at September 30, 2024 used significant unobservable inputs including: (1) NGL prices interpolated and extrapolated due to inactive markets ranging from $0.67 to $1.45 per gallon with a weighted average of $0.85 per gallon and (2) a 100 percent probability of renewal for the five-year term of the natural gas purchase commitment and 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.

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 September 30,Nine Months Ended September 30,
(Millions of dollars)2024202320242023
Beginning balance$69$53$61$61
Unrealized and realized loss included in net income(a)310187
Settlements of derivative instruments(3)(3)(10)(8)
Ending balance$69$60$69$60
The amount of total loss for the period included in earnings attributable to the change in unrealized loss relating to liabilities still held at the end of period(a):$3$9$15$6

(a) The loss is included in cost of revenues on the consolidated statements of income.

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Fair Values – Non-recurring

Non-recurring fair value measurements and disclosures in 2024 relate to acquisitions and other transactions as discussed in Note 13.

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 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 $26.9 billion at September 30, 2024, respectively, and approximately $27.0 billion and $25.5 billion at December 31, 2023, respectively. These carrying and fair values of our debt exclude the unamortized issuance costs, which are netted against our total debt.

16**.** Derivatives

For further information regarding the fair value measurement of derivative instruments, including any effect of master netting agreements or collateral, see Note 15. 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, (7) the purchase of soybean oil and (8) the sale of propane under certain percent-of-proceeds and keep-whole arrangements.

The following table presents the fair value of derivative instruments as of September 30, 2024 and December 31, 2023 and the line items in the consolidated 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.

(Millions of dollars)September 30, 2024December 31, 2023
Balance Sheet LocationAssetLiabilityAssetLiability
Commodity derivatives
Other current assets$303$295$244$249
Other current liabilities(a)—10—11
Deferred credits and other liabilities(a)—59—50

(a) Includes embedded derivatives.

The table below summarizes open commodity derivative contracts for crude oil, refined products, blending products, soybean oil and propane as of September 30, 2024.

Percentage of contracts that expire next quarterPosition
(Units in thousands of barrels)LongShort
Exchange-traded(a)
Crude oil77.5%51,34056,381
Refined products95.0%19,42120,765
Blending products82.5%5,6527,953
Soybean oil99.6%2,2612,530
Over-the-counter
Propane100.0%—344

(a) Included in exchange-traded are spread contracts in thousands of barrels: Crude oil - 13,138 long and 12,968 short; Refined products - 517 long and 156 short. There are no spread contracts for blending products or soybean oil.

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The following table summarizes the effect of all commodity derivative instruments in our consolidated statements of income:

Gain (Loss)
(Millions of dollars)Three Months Ended September 30,Nine Months Ended September 30,
Income Statement Location2024202320242023
Sales and other operating revenues$4$(4)$2$6
Cost of revenues38(172)(82)(61)
Other income(1)(3)(2)(2)
Total$41$(179)$(82)$(57)

17**.** Debt

Our outstanding borrowings at September 30, 2024 and December 31, 2023 consisted of the following:

(Millions of dollars)September 30, 2024December 31, 2023
Marathon Petroleum Corporation:
Senior notes$5,699$6,449
Notes payable—1
Finance lease obligations494464
Total6,1936,914
MPLX LP:
Senior notes22,35020,700
Finance lease obligations66
Total22,35620,706
Total debt28,54927,620
Unamortized debt issuance costs(146)(141)
Unamortized discount, net of unamortized premium(183)(196)
Amounts due within one year(4,167)(1,954)
Total long-term debt due after one year$24,053$25,329

MPC Senior Notes

On September 16, 2024, we repaid the $750 million outstanding principal amount of 3.625 percent senior notes due September 2024 at maturity using cash on hand.

MPLX Senior Notes

On May 20, 2024, MPLX issued $1.65 billion aggregate principal amount of 5.50 percent senior notes due June 2034 (the “2034 Senior Notes”) in an underwritten public offering. MPLX intends to use the net proceeds from the issuance of the 2034 Senior Notes to repay, redeem or otherwise retire some or all of (i) MPLX's outstanding $1,149 million aggregate principal amount of 4.875 percent senior notes due December 2024, (ii) MarkWest's outstanding $1 million aggregate principal amount of 4.875 percent senior notes due December 2024 and (iii) MPLX's outstanding $500 million aggregate principal amount of 4.000 percent senior notes due February 2025, and in the interim may use such net proceeds for general partnership purposes.

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Available Capacity under our Credit Facilities as of September 30, 2024

(Millions of dollars)Total CapacityOutstanding BorrowingsOutstanding Letters of CreditAvailable CapacityWeighted Average Interest RateExpiration
MPC, excluding MPLX
MPC bank revolving credit facility$5,000$—$1$4,999—%July 2027
MPC trade receivables securitization facility(a)100——100—%September 2027
MPLX
MPLX bank revolving credit facility2,000——2,000—%July 2027

(a) The committed borrowing and letter of credit issuance capacity under the trade receivables securitization facility is $100 million. In addition, the facility allows for the issuance of letters of credit in excess of the committed capacity at the discretion of the issuing banks.

18**.** Revenue

The following table presents our revenues from external customers disaggregated by segment and product line.

Three Months Ended September 30,Nine Months Ended September 30,
(Millions of dollars)2024202320242023
Refining & Marketing
Refined products$31,462$36,971$94,803$101,758
Crude oil1,8262,1885,7135,393
Services and other4874661,3981,304
Total revenues from external customers33,77539,625101,914108,455
Midstream
Refined products4314771,1971,274
Services and other9018152,6162,395
Total revenues from external customers1,3321,2923,8133,669
Sales and other operating revenues$35,107$40,917$105,727$112,124

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 September 30, 2024, 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 September 30, 2024 include matching buy/sell receivables of $4.05 billion.

19**.** Supplemental Cash Flow Information

Nine Months Ended September 30,
(Millions of dollars)20242023
Net cash provided by operating activities included:
Interest paid (net of amounts capitalized)$959$952
Net income taxes paid to (received from) taxing authorities(a)6131,881

(a) 2024 includes $439 million paid to third parties for transferable tax credits.

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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:

Nine Months Ended September 30,
(Millions of dollars)20242023
Additions to property, plant and equipment per the consolidated statements of cash flows$1,723$1,358
Increase (decrease) in capital accruals(18)54
Total capital expenditures$1,705$1,412

20. Other Current Liabilities

The following summarizes the components of other current liabilities:

(Millions of dollars)September 30, 2024December 31, 2023
Environmental credits liability$716$778
Accrued interest payable290316
Other current liabilities378551
Total other current liabilities$1,384$1,645

21**.** Accumulated Other Comprehensive Income (Loss)

The following table shows the changes in accumulated other comprehensive income (loss) by component. Amounts in parentheses indicate debits.

(Millions of dollars)Pension BenefitsOther BenefitsOtherTotal
Balance as of December 31, 2022$(163)$165$—$2
Other comprehensive gain (loss) before reclassifications, net of tax of $(2)(9)3(2)(8)
Amounts reclassified from accumulated other comprehensive loss:
Amortization of prior service credit(a)(34)(16)—(50)
Amortization of actuarial gain(a)(4)——(4)
Settlement gain(a)(2)——(2)
Other——(1)(1)
Tax effect104—14
Other comprehensive loss(39)(9)(3)(51)
Balance as of September 30, 2023$(202)$156$(3)$(49)
(Millions of dollars)Pension BenefitsOther BenefitsOtherTotal
Balance as of December 31, 2023$(261)$129$1$(131)
Other comprehensive gain (loss) before reclassifications, net of tax of $12(1)(1)—
Amounts reclassified from accumulated other comprehensive loss:
Amortization of prior service credit(a)(25)(16)—(41)
Amortization of actuarial loss(a)5——5
Tax effect54—9
Other comprehensive loss(13)(13)(1)(27)
Balance as of September 30, 2024$(274)$116$—$(158)

(a)These accumulated other comprehensive loss components are included in the computation of net periodic benefit cost. See Note 22.

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22**.** Pension and Other Postretirement Benefits

The following summarizes the components of net periodic benefit costs:

Three Months Ended September 30,Nine Months Ended September 30,
(Millions of dollars)2024202320242023
Pension Benefits
Service cost$63$53$170$150
Interest cost31299287
Expected return on plan assets(36)(38)(110)(122)
Amortization of prior service credit(9)(12)(25)(34)
Amortization of actuarial (gain) loss3(1)5(4)
Settlement gain———(2)
Net periodic pension benefit cost$52$31$132$75
Other Benefits
Service cost$5$4$15$14
Interest cost872423
Amortization of prior service credit(5)(5)(16)(16)
Net periodic other benefit cost$8$6$23$21

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 nine months ended September 30, 2024, we made contributions of $92 million to our funded pension plans. Benefit payments related to unfunded pension and other postretirement benefit plans were $8 million and $37 million, respectively, during the nine months ended September 30, 2024.

23**.** 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 September 30, 2024 and December 31, 2023, accrued liabilities for remediation totaled $361 million and $387 million, respectively. 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 $5 million at September 30, 2024 and December 31, 2023, respectively.

Governmental and other entities in various states have filed climate-related lawsuits against a number of energy companies, including MPC. Although each suit is separate and unique, the lawsuits generally allege defendants made knowing misrepresentations about knowingly concealing, or failing to warn of the impacts of their petroleum products which led to increased demand and worsened climate change. Plaintiffs are seeking unspecified damages and abatement under various tort theories, as well as breaches of consumer protection and unfair trade statutes. We are currently subject to such proceedings in federal or state courts in California, Delaware, Maryland, Hawaii, Rhode Island, South Carolina and Oregon. Similar lawsuits may be filed in other jurisdictions. At this early stage, the ultimate outcome of these matters remains 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 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 demanded the immediate cessation of pipeline operations and assessed trespass damages of approximately $187 million. After subsequent appeal proceedings and in compliance with a new order issued by the BIA, in December 2020, THPP paid approximately $4 million in assessed trespass damages and ceased use of the portion of the pipeline that crosses the property at issue. In March 2021, the BIA issued an order purporting to vacate the BIA’s prior orders related to THPP’s alleged trespass and direct the Regional Director of the BIA to reconsider the issue of THPP’s alleged trespass and issue a new order. In April 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 (collectively, the “U.S. Government Parties”) challenging the March 2021 order purporting to vacate all previous orders related to THPP’s alleged trespass. On February 8, 2022, the U.S. Government Parties filed their answer and counterclaims to THPP’s suit claiming THPP is in continued trespass with respect to the pipeline and seek disgorgement of pipeline profits from June 1, 2013 to present, removal of the pipeline and remediation. On November 8, 2023, the District Court of North Dakota granted THPP’s motion to sever and stay the U.S. Government Parties’ counterclaims. The case will proceed on the merits of THPP’s challenge to the March 2021 order purporting to vacate all previous orders related to THPP’s alleged trespass. THPP continues not to operate that portion of the pipeline that crosses the property at issue.

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, individually or collectively, 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 tend to follow the terms of the underlying debt, which extend through 2040. Our maximum potential undiscounted payments under these agreements for the debt principal totaled $222 million as of September 30, 2024.

Dakota Access Pipeline

MPLX holds a 9.19 percent indirect interest in a joint venture (“Dakota Access”), which owns and operates the Dakota Access Pipeline and Energy Transfer Crude Oil Pipeline projects (collectively, the “Bakken Pipeline system”). In 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 prepare an environmental impact statement (“EIS”) relating to an easement under Lake Oahe in North Dakota. The D.D.C. later vacated the easement. The Army Corps issued a draft EIS in September 2023 detailing various options for the easement going forward, including denying the easement, approving the easement with additional measures, rerouting the easement, or approving the easement with no changes. The Army Corps has not selected a preferred alternative, but will make a decision in its final review, after considering input from the public and other agencies. The pipeline remains operational while the Army Corps finalizes its decision which will follow the issuance of the final EIS. According to public statements from Army Corps officials, the EIS is now expected to be issued in 2025.

MPLX has entered into a Contingent Equity Contribution Agreement whereby it, 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. If the vacatur of the easement results in a temporary shutdown of the pipeline, 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 shut down. MPLX also expects to contribute its 9.19 percent pro rata share of any costs to remediate any deficiencies to reinstate the easement and/or return the pipeline into operation. If the vacatur of the easement results in a permanent shutdown

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of the pipeline, MPLX would have to contribute its 9.19 percent pro rata share of the cost to redeem the bonds (including the 1 percent redemption premium required pursuant to the indenture governing the notes) and any accrued and unpaid interest. As of September 30, 2024, our maximum potential undiscounted payments under the Contingent Equity Contribution Agreement were approximately $78 million.

Crowley Blue Water Partners LLC

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. The terms of the underlying debt extend through 2038. As of September 30, 2024, our maximum potential undiscounted payments under this arrangement were $87 million.

Other guarantees

We have entered into other guarantees with maximum potential undiscounted payments totaling $192 million as of September 30, 2024, which primarily consist of a commitment to indemnify a joint venture member for our pro rata share of any payments made under a performance guarantee for construction of a pipeline by an equity method investee, a commitment to contribute cash to an equity method investee for certain catastrophic events in lieu of procuring insurance coverage, a commitment to pay a termination fee on a supply agreement if terminated during the initial term, 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

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.

24. Subsequent Events

Additional $5 Billion Share Repurchase Authorization

On November 5, 2024, we announced that our board of directors approved an additional $5.0 billion share repurchase authorization. The authorization has no expiration date. We may utilize various methods to effect the repurchases, which could include open market repurchases, negotiated block transactions, accelerated share repurchases, tender offers or open market solicitations for shares, some of which may be effected through Rule 10b5-1 plans. The timing of repurchases will depend upon several factors, including market and business conditions, and repurchases may be suspended, discontinued or restarted at any time.

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