Marathon Petroleum
Runs the largest US oil refining system, 13 plants processing about 3 million barrels a day.
Physical scale and pipeline ownership keep this business intact for now, with labor talks and California rules the things to watch.
Marathon Petroleum buys crude oil and turns it into gasoline, diesel, and other fuels at 13 large refineries across the US. It is very hard to knock off because the US has not built a new refinery in nearly 50 years due to strict government permits, and no company has the money or will to try. The main long-term threat is electric vehicles reducing the need for gasoline over many years, but that is a decade or more away. In the near term, watch whether Marathon's profits swing wildly based on oil prices (normal for the business), whether workers strike over a new contract, and whether California forces refineries to close one by one, which could shrink Marathon's business but leave fewer competitors fighting for what remains.
El Paso refinery air-permit contested-case hearing outcome. Would show whether state-level regulation can force costly changes at core assets.
Whether California-style closures (like Valero Benicia, Phillips 66 LA) spread to other states. Would show regulatory attrition expanding beyond West Coast, shrinking industry capacity.
- 13 refineries, ~3.0 million bpd capacity
- Q1 2026 revenue $34.20B, up 8.5% YoY
- Market cap ~$91-92B
- USW national contract expired Jan 31 2026, strike risk with AI job security as bargaining issue.
- California-style regulatory pressure could spread and force West Coast refinery closures.
- Crack spread cyclicality means current record margins could reverse within quarters.
- Multiple active litigations including environmental tort and contested El Paso air permit.
| Rival | Direction | Evidence |
|---|---|---|
| Valero Energy | contesting | Both stocks up over 80 percent YTD on crack spreads as of July 15, 2026 |
| Phillips 66 | contesting | Phillips 66 closed its LA refinery while MPC held its West Coast footprint, per Dec 2025 report |
| HF Sinclair | contesting | HF Sinclair also gained over 80 percent YTD alongside MPC by July 15, 2026 |
- Is Marathon Petroleum profitable in 2026?
- Yes. Marathon Petroleum reported Q1 2026 net income of 511 million dollars and adjusted EBITDA of 2.8 billion dollars, up from 2.0 billion a year earlier, per results released May 4, 2026. Q4 2025 net income was 1.5 billion dollars, versus 371 million in Q4 2024.
- Who owns Marathon Petroleum?
- Marathon Petroleum is an independent public company, NYSE: MPC, with no parent. Institutional and hedge fund holders own roughly 76.77 percent of shares per 13F filings as of July 20, 2026. MPC itself majority owns midstream partnership MPLX, holding about a 64 percent unit interest as of July 19, 2026.
- Who is Marathon Petroleum's biggest competitor?
- Valero Energy, Phillips 66, and HF Sinclair are its closest independent refining peers. All three, along with MPC, saw shares gain over 80 percent year to date by mid July 2026 on wide crack spreads, so no single rival is currently taking share from MPC.
- Is it a good time to join Marathon Petroleum?
- Headcount is growing modestly, about 18,500 employees as of December 31, 2025, up 1.09 percent year over year per Macrotrends. However the USW national labor contract, covering two thirds of US refining capacity, expired January 31, 2026, with AI job security as an active bargaining issue, creating near term strike risk.
- Will Marathon Petroleum close more refineries like its California peers?
- MPC already idled its Martinez, California refinery in 2023. Valero is closing Benicia by spring 2026 and Phillips 66 already shut its LA refinery, showing a California-specific pattern. MPC is also contesting a Texas hearing order over its El Paso refinery's air permit renewal as of July 17, 2026.
- What is Marathon Petroleum's market value?
- Marathon Petroleum's market capitalization was approximately 91 to 92 billion dollars as of July 20, 2026, after the stock reached a new one year high driven by strong crack spreads and sector wide refining margins.
- 2026-07-20MPC market cap reaches roughly 91 to 92 billion dollars, new one year high
- 2026-07-17MPC contests Texas hearing order over El Paso refinery air permit renewal
- 2026-07-15MPC, Valero, HF Sinclair shares each up over 80 percent YTD on wide crack spreads
- 2026-07-01Dutch Girl Plaza LLC files environmental tort suit against MPC in N.D. Cal.
- 2026-05-04Q1 2026 results: revenue 34.20 billion dollars, adjusted EPS 1.65 dollars beats consensus
- 2026-02-02Q4 and full year 2025 results: net income 1.5 billion dollars, up from 371 million
- 2026-01-31USW national refining labor contract expires, AI job security a bargaining issue
- 2026-01-01Maryann T. Mannen becomes Chairman and CEO, replacing retiring Michael J. Hennigan
- 2023Martinez, California refinery permanently idled and converted
- Marathon Petroleum Corp. Reports First-Quarter 2026 Results (2026-05-04)
- Marathon Petroleum Corp. Reports Fourth-Quarter and Full-Year 2025 Results (2026-02-02)
- This 1 Refining Number Explains Why These Energy Stocks are on Fire (2026-07-15)
- Marathon Petroleum (MPC) Revenue 2009-2026
- Marathon Petroleum: AI Margin Pressure Analysis (2026-01-21)
- This Boring Pipeline Dividend MLP Returned 2X the QQQ's Gains (2026-07-19)
- Marathon Petroleum Corporation Organizational Structure (2026-03-31)
- Marathon Petroleum Reaches New 1-Year High (2026-07-20)
- Marathon Petroleum Corp. Announces Quarterly Dividend (2026-04-28)
- Marathon Petroleum: Number of Employees
- Marathon Petroleum Number of Employees 2026 (2026-06-29)
- Headcount, Funding & Open Jobs (2026-07-06)