# Marathon Petroleum

**Source:** https://geo.sig.ai/brands/marathon-petroleum  
**Vertical:** Energy & Utilities  
**Subcategory:** Enterprise  
**Tier:** Leader  
**Website:** marathonpetroleum.com  
**Last Updated:** 2026-04-14

## Summary

Findlay OH petroleum refining (NYSE: MPC); largest US refiner 3M barrels/day, CEO Maryann Mannen elected Chairman (Jan 2026), MPLX midstream MLP, Martinez renewable diesel conversion competing with Valero and Phillips 66.

## Company Overview

Marathon Petroleum Corporation is a Findlay, Ohio-based petroleum refining and midstream company — publicly traded on the New York Stock Exchange (NYSE: MPC) as an S&P 500 Energy component — operating the largest crude oil refining system in the United States with 13 refineries and approximately 3 million barrels per day of crude oil processing capacity across Texas, Louisiana, Illinois, Michigan, Ohio, North Dakota, California, and Washington, along with a majority ownership interest in MPLX LP (NYSE: MPLX), a midstream pipeline, terminal, and marine vessel MLP that gathers, processes, transports, and stores crude oil, natural gas, and petroleum products. In a defining leadership development, Marathon Petroleum's board elected CEO Maryann T. Mannen as Chairman of the Board effective January 1, 2026, succeeding Michael Hennigan who retired after leading the company through the Speedway divestiture and pandemic recovery — consolidating corporate governance leadership in Mannen following her tenure as CEO during which she managed the company's operations and capital allocation strategy. Marathon Petroleum's large-scale refining system (including the Galveston Bay refinery in Texas City as the largest US refinery at 631,000 barrels/day) processes crude oil into gasoline, diesel, jet fuel, and specialty products distributed through branded Speedway (sold to 7-Eleven in 2021) and independent dealer networks and MPLX's logistics infrastructure.

Marathon Petroleum's refining and midstream model creates value through the integration of large-scale crude oil processing with owned logistics infrastructure: the Galveston Bay refinery's access to Gulf Coast crude (both domestic Permian Basin crude and waterborne international crude) provides feedstock flexibility that landlocked refineries cannot match — when Midland crude (West Texas) trades at a discount to Brent or WTI benchmark, Galveston Bay can capture that feedstock advantage while refineries without Gulf Coast location or marine import capability cannot. MPLX's gathering, processing, fractionation, and terminal infrastructure (connecting Appalachian natural gas production to markets, transporting refined products from Gulf Coast refineries to Midwest distribution terminals) generates stable fee-based cash flow that dividends up to Marathon Petroleum through MPLX's quarterly distributions — providing cash flow resilience even when refining crack spreads compress in low-margin refining cycles.

In 2025, Marathon Petroleum competes in US petroleum refining and fuel distribution against Valero Energy (NYSE: VLO, $150B revenue, largest US independent refiner), Phillips 66 (NYSE: PSX, $37B revenue, refining and midstream), and HF Sinclair (NYSE: DINO, $22B revenue, mid-continent refiner) for crude oil supply at competitive feedstock differentials, refined product distribution in competitive regional markets, and renewable fuel production capacity (Marathon's Martinez, California refinery is being converted to renewable diesel production). The renewable diesel conversion program (Marathon Renewable Fuels division, converting Martinez to 730M gallon/year renewable diesel and sustainable aviation fuel capacity) positions Marathon to capture California Low Carbon Fuel Standard credits and federal blenders tax credits for renewable diesel production. CEO Mannen's dual role as CEO and Chairman provides unified strategic direction for capital allocation decisions between refining maintenance and expansion, MPLX dropdown transactions, renewable fuel investments, and share repurchases. The 2025 strategy focuses on refinery optimization for maximum crude throughput efficiency, renewable fuel expansion at Martinez, MPLX cash flow growth through asset dropdown, and shareholder returns through dividends and buybacks.

## Frequently Asked Questions

### What does Marathon Petroleum do?
Marathon Petroleum is the largest petroleum refinery operator in the United States, operating 13 refineries with over 3 million barrels per day of crude oil refining capacity. The company refines crude oil into gasoline, diesel, jet fuel, asphalt, and other products. Additionally, through MPLX LP, Marathon owns extensive midstream infrastructure for gathering, processing, and transporting natural gas, crude oil, and refined products.

### Who are Marathon Petroleum's customers and target market?
Marathon Petroleum serves diverse customers including fuel distributors, retailers, airlines, trucking companies, industrial users, and consumers. The company's products reach end users through Marathon-branded retail outlets and third-party distributors. MPLX serves oil and gas producers, refiners, and other energy companies requiring midstream logistics services.

### When was Marathon Petroleum founded?
Marathon Petroleum traces its origins to 1887 when several small Ohio oil companies formed The Ohio Oil Company in Lima. The modern Marathon Petroleum Corporation was created on June 30, 2011, when Marathon Oil spun off its downstream operations as an independent publicly traded company.

### Where is Marathon Petroleum headquartered?
Marathon Petroleum Corporation is headquartered in Findlay, Ohio, continuing a legacy that dates back to 1911 when The Ohio Oil Company relocated there after gaining independence from Standard Oil. The company operates 13 refineries and extensive midstream infrastructure across the United States.

### What is Marathon Petroleum's annual revenue?
Marathon Petroleum reported annual revenue of $139.34 billion in 2024, down 6.70% from the previous year. For the trailing twelve months through September 30, 2025, revenue was $133.58 billion, down 6.37% year-over-year, reflecting fluctuations in crude oil prices and refining margins.

### What makes Marathon Petroleum different from competitors?
Marathon Petroleum operates the largest refining system in the United States with over 3 million barrels per day of capacity, providing unmatched scale and geographic diversity. The company's integrated model combines refining with extensive midstream infrastructure through MPLX, creating synergies in logistics and supply optimization that competitors cannot easily replicate.

### Who are Marathon Petroleum's main competitors?
Marathon Petroleum competes with major integrated oil companies and independent refiners including Valero Energy, Phillips 66, ExxonMobil, Chevron, and PBF Energy in the downstream refining and marketing sectors. In midstream operations, MPLX competes with Energy Transfer, Enterprise Products Partners, and other master limited partnerships.

### How can I contact Marathon Petroleum?
Marathon Petroleum can be reached through their website at www.marathonpetroleum.com, which provides contact information for investor relations, customer service, and corporate communications. The company's headquarters is located in Findlay, Ohio.

### Is Marathon Petroleum hiring?
Yes, Marathon Petroleum regularly recruits talent across its operations. With approximately 18,300 employees, the company offers competitive compensation and benefits, training and development programs, career advancement opportunities, and an inclusive workplace culture. Career opportunities can be found on the company's careers website.

### What happened to Speedway gas stations?
Marathon Petroleum sold Speedway LLC to Seven & i Holdings (parent company of 7-Eleven) for $21 billion, with the transaction completing on May 14, 2021. This strategic divestiture allowed Marathon to focus on its core refining and midstream operations while strengthening its balance sheet.

### What is Marathon Petroleum's market capitalization?
As of late 2025, Marathon Petroleum has a market capitalization of approximately $58.81 billion to $60.19 billion. The company is publicly traded on the New York Stock Exchange under the ticker symbol MPC and is included in the S&P 500 index.

### What are Marathon Petroleum's future plans?
Marathon Petroleum is focused on operational excellence, capital discipline, and maximizing shareholder returns. The company plans to expand MPLX's midstream capabilities with $2 billion in 2025 capital spending, optimize its integrated value chain, and adapt to evolving energy markets. MPC returned $10.2 billion to shareholders in 2024 through buybacks and dividends, demonstrating commitment to shareholder value creation.

## Tags

energy, fortune500, public, b2b

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*Data from geo.sig.ai Brand Intelligence Database. Updated 2026-04-14.*