Marathon Petroleum has a long running commitment to its customers. The subsidiary of Marathon Oil Corporation operates six refineries with the capacity to process about 1.1 million barrels of crude oil a day. Marathon Petroleum sells refined products at some 4,600 Marathon-branded gas stations, and through retail subsidiary Speedway SuperAmerica's 1,360 outlets. It also holds stakes in 9,600 miles of pipeline, and is one of the largest asphalt and light oil product terminal operators in the US. It distributes petroleum products wholesale to private brand marketers and to large commercial and industrial consumers, as well as to the spot market. The company has operations in almost 20 US states.