Company facts
- Industry
- Petroleum Refining
- Headquarters
- Findlay, Ohio
- Most recent report
- 10-Q, filed Nov 3, 2026
- Incorporated
- Delaware
- Filings on record
- 1,010+ filings
- On EDGAR
- CIK 1510295
- Fiscal year ends
- December
- Filer status
- Large accelerated filer
Financials 8 of 36
News 8 of 124
Prospectuses and Registrations 8 of 24
- S-3ASR Automatic shelf registration May 6, 2026
- 424B5 Prospectus supplement for an offering Feb 7, 2025
- FWP Free writing prospectus Feb 6, 2025
- 424B5 Prospectus supplement for an offering Feb 6, 2025
- S-3ASR Automatic shelf registration May 12, 2023
- S-8 Registration statement for an employee plan Apr 28, 2021
- S-8 Registration statement for an employee plan Aug 19, 2020
- S-3ASR Automatic shelf registration Apr 27, 2020
Proxies 8 of 47
- DEFA14A Extra proxy material Mar 16, 2026
- DEF 14A Proxy statement for a shareholder vote Mar 16, 2026
- PRE 14A Preliminary proxy statement Mar 6, 2026
- DEFA14A Extra proxy material Mar 17, 2025
- DEF 14A Proxy statement for a shareholder vote Mar 17, 2025
- PRE 14A Preliminary proxy statement Mar 7, 2025
- DEFA14A Extra proxy material Mar 14, 2024
- DEF 14A Proxy statement for a shareholder vote Mar 14, 2024
Ownership 8 of 708
- SCHEDULE 13G/A Large holder reported a passive stake, amended Oct 27, 2026
- 4 Insider reported a trade Sep 1, 2026
- 144 Notice of a proposed sale of restricted stock Aug 31, 2026
- 4 Insider reported a trade Aug 31, 2026
- 144 Notice of a proposed sale of restricted stock Aug 28, 2026
- 144 Notice of a proposed sale of restricted stock Aug 27, 2026
- 144 Notice of a proposed sale of restricted stock Aug 24, 2026
- 144 Notice of a proposed sale of restricted stock Aug 20, 2026
Other 8 of 71
- 11-K Employee stock plan report Jun 25, 2026
- ARS Annual report sent to shareholders Mar 16, 2026
- 11-K Employee stock plan report Jun 23, 2025
- ARS Annual report sent to shareholders Mar 17, 2025
- 11-K Employee stock plan report Jun 27, 2024
- ARS Annual report sent to shareholders Mar 14, 2024
- 11-K Employee stock plan report Jun 23, 2023
- ARS Annual report sent to shareholders Mar 13, 2023
What to read: Sep 2026 10-Q
SECSift found 3 of 11 sections worth reading, with 1 positive, 13 notable, and 0 negative flags.
Financial Statements (Item 1)
Financial statements and notes show massive earnings swing, debt moves, and a pending refinery sale.Notable- MPC owns about 64% of MPLX common units as of Sep 2026; MPLX had $970M remaining under its $1B buyback.
- MPLX acquired Northwind Midstream for $2.4B in Aug 2025, adding sour gas gathering in Permian; $360M goodwill.
- MPC sold its 49.9% interest in ethanol JV TAMH for $427M in Jul 2025, recording a $254M gain.
- MPLX acquired BANGL for $703M cash plus up to $275M earnout; recorded $484M gain on remeasurement and $731M goodwill.
- MPC's long-term debt rose to $32.89B at Sep 2026 from $30.51B at Dec 2025; fair value was $29.5B vs carrying $32.6B.
- Derivative liabilities from SPR crude return obligation totaled $1.9B at Sep 2026, with 26M barrels due Apr 2027–Jul 2029.
- MPC redeemed $749M of 5.125% senior notes due Dec 2026 in Sep 2026.
- MPC and MPLX entered new $5B and $2.5B revolving credit facilities in Apr 2026, maturing Apr 2031.
- On Nov 2, 2026, MPC agreed to sell St. Paul Park and Mandan refineries for $4.2B cash; net assets were $1.8B.
- MPC's board approved an additional $5.0B share repurchase authorization on Nov 3, 2026, no expiration.
Management's Discussion (Item 2)
Massive profit surge, $4.2B refinery sale, $5B buyback, SPR deal, and tax/legal charges.Market Risk (Item 3)
Large realized derivative loss of $966M vs $59M; $29.8B fixed-rate debt with $2.4B fair-value sensitivity.
What changed: Sep 2026 vs. Jun 2026
About 8% of MPC's Sep 2026 10-Q is new information. 40 paragraphs were added, 222 changed, and 35 removed. Below are the most important lines SECSift identified.
Changed
- Additional $5.0 billion buyback authorization added Nov 3, 2026; remaining authorization fell to $3.12 billion from $6.13 billion.
- Crude oil sensitivity to a 10% price increase rose to $172M from $81M as of Sep 30, 2026 vs Jun 30, 2026.
- MPLX distribution rose to $1.2111 per unit from $1.0765; MPC's portion rose to $784 million from $697 million.
- MPLX intercompany loan capacity increased to $2.5 billion from $1.5 billion; term extended to Oct 2031 from Jul 2029.
- Changed 'Except as described below' to 'other than as disclosed in our Quarterly Report on Form 10-Q for the second quarter of 2026'.
- Updated cross-reference from Note 22 to Note 23 for legal proceedings details.
Removed
- Dropped reference to 'Dakota Access Pipeline' from the list of notes to see.
- Exhibits 10.1, 10.2, 10.3, and 10.4 (credit agreements and loan documents) were removed from the filing.
- Prior filing disclosed Molly R. Benson's trading plan for 17,196 shares; current filing has no such disclosure.
- Prior filing disclosed director Abdulaziz F. Alkhayyal's death and board reclassification; current filing has no such disclosure.
- Removed paragraph about Galveston Bay Refinery consent decree and EPA penalty demand.
Everything here comes from Marathon Petroleum Corp's own filings on SEC EDGAR. The filing list is rechecked every hour. SECSift analysis was completed on Nov 3, 2026, from the 10-Q for Sep 2026.