MARATHON PETROLEUM CORPORATION, also called Marathon Petroleum, is an independent company, which engages in refining, marketing, and transportation of petroleum products in the United States. Itoperates through the following segments: Refining and Marketing; Retail; and Midstream. Read More The Refining and Marketing segment refines crude oil and other feedstocks at its refineries in the Gulf Coast and Midwest regions of the United States; purchases ethanol and refined products for resale and distributes refined products through various means, including barges, terminals, and trucks that the company owns or operates. The Retail segment sells transportation fuels and convenience products in the retail market across the United States through company-owned and operated convenience stores, primarily under the Speedway brand, and long-term fuel supply contracts with direct dealers who operate locations mainly under the ARCO brand. The Midstream segment transports, stores, distributes and markets crude oil and refined products principally for the Refining and Marketing segment via refining logistics assets, pipelines, terminals, towboats and barges. It also gathers, processes, and transports natural gas; and gathers, transports, fractionates, stores, and markets NGLs. The company was founded in 1887 and is headquartered in Findlay, OH.