Marathon Petroleum Corporation (MPC) is an American company providing petroleum refining, marketing and transportation services in the Midwest, Northeast, East Coast, Southeast and Gulf Coast regions of the U.S. The company has 45,440 employees and accounts for approximately 9.9 percent of the total U.S. refining capacity. MPC is the third-largest independent U.S. refiner. Marathon Petroleum Corporation was formed in 2009 as a subsidiary of Marathon Oil, itself founded in 1887. The company’s headquarters are located in Findlay, Ohio, U.S.