Operations from Coast to Coast

Operations Map
Refining
  • 16
    Refineries
  • Largest
    U.S. refiner
    13
    states
    3 million+
    barrels per day
    REFining Capacity
Midstream
  • 2
    High-growth mlps

    MPLX LP anD

    Andeavor Logistics LP
  • 13,000+ Miles
    Pipelines
    ~120
    Terminals
    10+ Billion
    Cubic/Ft Day
    Processing Capacity
Retail
  • 3
    strong brands: speedway®,  marathon® and Arco®
  • ~3,900
    company owned and operated
    ~6,800
    branded locations
    ~1,000
    Direct Dealer Locations, primarily in California

Refineries

We operate the nation's largest refining system, with more than 3 million barrels per day of crude oil capacity across 16 refineries. Our refineries are integrated with each other via pipelines, terminals and barges to maximize operating efficiency.

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Midstream

Our Midstream segment primarily includes the operations of MPLX LP and Andeavor Logistics LP, Marathon Petroleum's sponsored master limited partnerships, which transport, store, distribute and market crude oil and refined products via refining logistics assets, pipelines, terminals, towboats and barges; gather, process and transport natural gas; and gather, transport, fractionate, store and market natural gas liquids. 

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Retail: Gas Stations

Marathon brand and ARCO gas stations and Speedway convenience stores are across the U.S. and Northern Mexico so that you can stay fueled and on the road to where you're going. 

DISCOVER OUR RETAIL GAS STATIONS

Refining

We operate the nation's largest refining system with more than 3 million barrels per day of crude oil capacity across 16 refineries.

LEARN MORE ABOUT OUR REFINERIES

Industrial Products

We offer a variety of industrial petroleum-based products. From asphalt to petrochemicals, we have everything you need to fuel your business.

Explore our Industrial Products