Marathon Petroleum Corporation is the largest independent petroleum product refining, marketing, and midstream company in the United States, headquartered in Findlay, Ohio, that generated $135.2 billion in total revenues and other income for fiscal year 2025. The company operates 16 refineries with approximately 3.0 million barrels per day of crude oil refining capacity, making it the largest refiner in the US and a top-five refiner globally. Founded in 1887 as The Ohio Oil Company, Marathon Petroleum has survived 138 years of industry transformation—from the Standard Oil monopoly to the energy transition—and trades on the NYSE under ticker MPC with a market capitalization of approximately $74.6 billion.
Marathon Petroleum Corporation: Key Facts
- Founded: 1887 (as The Ohio Oil Company in Lima, Ohio)
- Headquarters: Findlay, Ohio, United States
- CEO: Maryann T. Mannen (appointed 2024)
- Revenue (FY2025): $135.2 billion (total revenues and other income)
- Employees: Approximately 21,000
- Primary Business: Petroleum refining, marketing, midstream logistics, and renewable fuels
- Stock Ticker: MPC (NYSE)
- Market Cap: Approximately $74.6 billion (mid-2026)
- Refining Capacity: ~3.0 million barrels per day across 16 refineries
How Does Marathon Petroleum Make Money?
Marathon Petroleum generates revenue through three integrated business segments. The Refining & Marketing segment is the core, refining crude oil at 16 US refineries and selling gasoline, distillates, NGLs, asphalt, and other products to wholesale customers, retailers, and export markets. In 2024, the segment processed 2,714 thousand barrels per day of crude oil and sold 3,585 thousand barrels per day of refined products. Gasoline accounted for 1,922 mbpd of sales and distillates for 1,187 mbpd. The segment generated adjusted EBITDA of $5.7 billion in 2024, down from $13.7 billion in 2023 as crack spreads normalized.
The Midstream segment, conducted primarily through MPLX LP in which MPC holds a majority stake, owns approximately 21,000 miles of pipeline, 40 million barrels of terminal storage, and extensive gathering, processing, and fractionation assets. MPLX generated $6.5 billion in segment adjusted EBITDA in 2024, up 6% from 2023, and delivered $2.27 billion in distributions to MPC. The annualized distribution is expected to reach $2.5 billion. The Renewable Diesel segment includes the Martinez Renewables joint venture with Neste, which reached full production of 730 million gallons per year in late 2024, plus biodiesel and ethanol facilities. The company produced nearly 600 million gallons of renewable fuels in 2024 and delivered approximately 2.8 billion gallons to market.
Who Founded Marathon Petroleum and When?
Marathon Petroleum traces its origins to 1887, when several small oil companies banded together to form The Ohio Oil Company in Lima, Ohio. In 1889, the company was purchased by John D. Rockefeller's Standard Oil Trust and operated as a subsidiary until the Supreme Court broke up Standard Oil in 1911 under the Sherman Antitrust Act, restoring the company's independence. The company adopted the Marathon brand name in 1930 through the acquisition of Transcontinental Oil Company, which brought the Pheidippides Greek runner trademark and the 'Best in the Long Run' slogan. The name was officially changed to Marathon Oil Company in 1962.
In 1982, Marathon Oil was acquired by U.S. Steel Corporation. In 2001, USX split into United States Steel and Marathon Oil Corporation. On June 30, 2011, Marathon Petroleum Corporation was spun off from Marathon Oil as a pure downstream company, with stockholders receiving one MPC share for every two Marathon Oil shares. The newly independent company, headquartered in Findlay, Ohio, inherited a refining and marketing business with roots stretching back to 1887.
What Is Marathon Petroleum's Competitive Advantage?
Marathon Petroleum's single most defensible competitive advantage is the scale, complexity, and geographic diversification of its refining system combined with the structural cash flow floor provided by its majority ownership of MPLX. The company operates 16 refineries with 3.0 million barrels per day of capacity, making it the largest independent refiner in the United States. Its high-complexity units can process cheaper heavy sour crude grades into higher-value products, capturing margin from crude differentials that simple refiners cannot access.
The company's 99% commercial capture rate in 2024 and 105% in 2025 demonstrate that this complexity translates into realized margins. The integrated midstream ownership through MPLX provides a second distinct advantage: while pure refining peers must pay market rates for logistics services, Marathon captures these margins internally and receives $2.27 billion annually in distributions that are largely insulated from refining volatility. Management has stated that MPLX's growing distribution, expected to reach $2.5 billion annualized, will more than fund MPC's dividend and standalone capital expenditures—a structural advantage no competitor can replicate.
How Has Marathon Petroleum's Revenue Grown Over Time?
Marathon Petroleum's revenue trajectory reflects the extreme cyclicality of the refining industry and the company's strategic transformations. Total revenues and other income peaked at $177.5 billion in 2022 during elevated refined product prices following Russia's invasion of Ukraine, then declined to $150.3 billion in 2023, $140.4 billion in 2024, and $135.2 billion in 2025 as prices normalized. The 2018 Andeavor acquisition approximately doubled the company's revenue base by adding 10 refineries and a West Coast marketing platform.
The company's earnings have been even more volatile than revenue. Net income attributable to MPC was $14.5 billion in 2022, $9.7 billion in 2023, $3.4 billion in 2024, and $4.0 billion in 2025. The Refining & Marketing segment adjusted EBITDA collapsed from $19.3 billion in 2022 to $5.7 billion in 2024—a 70.5% decline—while the Midstream segment grew from $6.2 billion to $6.5 billion, demonstrating the earnings stabilization value of integration.
Marathon Petroleum Business Model Explained
Marathon Petroleum operates as a fully integrated downstream energy company, capturing value across the petroleum value chain from crude oil acquisition to refined product delivery. The company's business model is built on three pillars: high-complexity refining that maximizes margin capture from crude differentials, integrated midstream logistics that reduce costs and create switching costs, and branded marketing that provides market access and customer loyalty.
The refining business generates revenue through the sale of refined products at prices tied to market benchmarks, with profitability driven by the margin between product prices and crude costs. Marathon Petroleum's 94% utilization rate and 105% capture rate in 2025 demonstrate operational excellence. The midstream business generates fee-based revenue from pipeline transportation, storage, and processing services, providing stable cash flows that are largely independent of commodity prices. The marketing business generates margin from the sale of branded and unbranded fuels through approximately 8,900 locations. Capital allocation prioritizes maintaining an investment-grade credit profile, funding sustaining and growth capital, and returning at least 50% of discretionary free cash flow to shareholders.
Marathon Petroleum Key Acquisitions
Marathon Petroleum's most transformative acquisition was the 2018 purchase of Andeavor for $23.3 billion in equity and $35.6 billion in enterprise value. The transaction created the largest independent refiner in the United States, adding 10 refineries, the ARCO retail brand, and Andeavor Logistics. The combined company became the No. 1 US refiner by capacity with a coast-to-coast refining, marketing, and midstream platform. Management expected up to $1.4 billion in gross run-rate synergies by the end of 2021.
In 2012, Marathon Petroleum acquired BP's Texas City refinery and related assets, adding significant Gulf Coast capacity. In 2014, it acquired Hess Corporation's retail operations, expanding the East Coast marketing footprint. The 2020 sale of Speedway to 7-Eleven for $21 billion, while a divestiture rather than an acquisition, was strategically significant—removing a non-core retail business to focus on the integrated refining-midstream model and strengthen the balance sheet.
What Are the Biggest Risks Facing Marathon Petroleum?
The most significant risk facing Marathon Petroleum is the structural compression of refining margins from the record levels of 2022. The Refining & Marketing segment adjusted EBITDA collapsed 70.5% from $19.3 billion in 2022 to $5.7 billion in 2024, and net income declined 72.1% from $14.5 billion to $4.0 billion over the same period. With total debt of $28.7 billion and a debt-to-equity ratio of 103.48%, the company has limited balance sheet flexibility to absorb a prolonged downturn.
The energy transition poses a long-term existential threat. As electric vehicle adoption increases and renewable energy displaces fossil fuels, gasoline and diesel demand will peak and decline, reducing the addressable market for Marathon's core business. The Renewable Fuel Standard creates ongoing compliance costs and regulatory uncertainty. Competition from Valero, Phillips 66, PBF Energy, and HF Sinclair is intense across all markets. The 2020 Speedway sale removed a stable earnings stream and increased exposure to refining margin volatility.
Bottom Line
Marathon Petroleum is positioned for measured stability in a challenging refining margin environment. The company is not growing revenue—total revenues declined from $177.5 billion in 2022 to $135.2 billion in 2025—but it is maintaining operational excellence with 94% utilization and 105% margin capture. Net income of $4.0 billion, adjusted EBITDA of $12.0 billion, and $8.3 billion in cash from operations demonstrate the resilience of the integrated model. The Midstream segment's growth and MPLX's $2.5 billion expected annual distribution provide a cash flow floor that pure refining peers lack. The company returned $4.5 billion to shareholders in 2025 and maintains its investment-grade credit profile. With the Martinez Renewables facility at full production and multiyear refinery investments underway, Marathon Petroleum is executing a strategy of operational excellence and disciplined capital allocation. The key question is whether refining margins will stabilize or compress further, and whether the company's renewable fuels and midstream businesses can grow fast enough to offset long-term declines in fossil fuel demand.
