Marathon Petroleum Corporation is a downstream and midstream energy company operating America's largest refining system, plus fuel marketing and MPLX LP infrastructure.
Marathon Petroleum Corporation is an integrated downstream and midstream energy company that operates the largest refining system in the United States. Its 13 refineries have a combined crude oil processing capacity of approximately 3 million barrels per day. The company is headquartered in Findlay, Ohio, and traces its origins to 1887, when it was founded as The Ohio Oil Company in Lima, Ohio.
Alongside refining, Marathon Petroleum runs marketing and midstream operations. The Marathon brand supplies a network of retail outlets across the United States. Midstream assets - including gathering, processing and pipeline transportation infrastructure - are held through MPLX LP, in which Marathon Petroleum owns the general partner and a majority limited partner interest.
Technical work spans oil refining, gathering and processing, pipeline transportation, and fuel marketing and retail. The workforce is national in scope, covering refineries, terminals, pipelines and offices. The company states core values of integrity, diversity, health and safety, environmental stewardship and corporate citizenship, and describes its mission as powering daily life responsibly.
