SuperAmerica was a chain of gasoline stations and convenience stores in the Upper Midwest, based in Woodbury, Minnesota. It was owned by Marathon Petroleum. The first convenience store opened in the 1960s. SuperAmerica had 278 stores with 271 in Minnesota, 11 in Wisconsin and 2 in South Dakota.

Marathon Petroleum Corporation is an American petroleum refining, marketing, and transportation company headquartered in Findlay, Ohio. The company was a wholly owned subsidiary of Marathon Oil until a corporate spin-off in 2011.