Marathon Petroleum Corporation (MPC) is one of the largest petroleum refiners, marketers and transporters in the United States.Headquartered in Findlay, Ohio, Marathon Petroleum Corporation (MPC), together with its subsidiaries, including Marathon Petroleum Company LP and Speedway LLC, is one of the largest petroleum product refiners, marketers and transporters in the United States.  MPC is the nation’s fourth-largest refiner and the largest refiner in the Midwest. MPC’s refining, marketing and transportation operations are concentrated primarily in the Midwest, Gulf Coast and Southeast regions of the U.S.  MPC operations are strategically located to serve major markets. They include a seven-plant refining network, a comprehensive terminal and transportation system, and extensive wholesale and retail marketing operations. This includes both the Marathon brand and MPC’s wholly-owned retail marketing subsidiary, Speedway LLC, the nation’s fourth-largest chain of company-owned and -operated retail gasoline and convenience stores.

MPC operations are strategically located to serve major markets. They include a seven-plant refining network, a comprehensive terminal and transportation system, and extensive wholesale and retail marketing operations. This includes both the Marathon brand and MPC’s wholly owned retail marketing subsidiary, Speedway LLC, the nation’s second-largest chain of company-owned and operated retail gasoline and convenience stores.Supplier Relations :  When it comes to the suppliers who provide the materials, goods and services it takes to conduct our business, Marathon Petroleum Corporation (MPC) searches for the right relationship, right product, at the right value. Relationships with suppliers are managed by a world-class Global Procurement organization headquartered in Findlay, Ohio. Procurement personnel are also located at each of our refining locations to provide onsite procurement and contracting support.