Marathon Petroleum is the largest oil refiner in the United States, operating 13 refineries with roughly 3 million barrels per day of crude capacity across the Gulf Coast, Midwest, and West Coast, including the nation's largest refinery in Galveston Bay, Texas. It markets fuels through a nationwide wholesale network and supplies approximately 7,000 Marathon-branded stations, having sold its Speedway retail chain to 7-Eleven for $21 billion in 2021. Through its majority-owned master limited partnership MPLX, Marathon controls extensive midstream infrastructure including pipelines, terminals, and gathering and processing assets whose distributions fund a large share of the parent's dividend. The company also produces renewable diesel at converted facilities. Spun off from Marathon Oil in 2011, MPC is headquartered in Findlay, Ohio.

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Marathon Petroleum Corp