Marathon Petroleum Corp — Investor Relations & Filings

Marathon Petroleum Corporation (MPC) is an integrated downstream and midstream energy company focused on petroleum refining, marketing, and transportation. The company operates the largest refining system in the nation, with a crude oil capacity of approximately 3 million barrels per day across 13 refineries. Its midstream operations, conducted primarily through its master limited partnership MPLX LP, provide logistics services, including the gathering, processing, and transportation of natural gas, crude oil, and refined products. MPC markets petroleum products, such as gasoline and diesel, through a large retail network featuring brands like Marathon and ARCO. The company also produces renewable fuels, including renewable diesel, to meet evolving energy demands.