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Marathon Petroleum Corp

For the period ended Jun 30, 2026. Filed Aug 4, 2026.

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A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Jun 30, 2026 · Filed Aug 4, 2026

MPC$389.55-0.1%Stored close · as of Nov 10, 2026

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21. Pension and Other Postretirement Benefits

  1. 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,
(Millions of dollars)2026202520262025
Pension Benefits
Service cost$62$57$124$112
Interest cost38357772
Expected return on plan assets(39)(35)(78)(72)
Amortization of prior service credit(2)(2)(4)(4)
Amortization of actuarial loss5498
Settlement loss—1—1
Net periodic pension benefit cost$64$60$128$117
Other Benefits
Service cost$5$5$10$10
Interest cost981717
Amortization of prior service credit(6)(5)(11)(11)
Net periodic other benefit cost$8$8$16$16

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, 2026, we madeno contributions to our funded pension plans. Benefit payments related to unfunded pension and other postretirement benefit plans were $8 million and $28 million, respectively, during the six months ended June 30, 2026.

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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.