Where is Marathon Petroleum headquartered?
Marathon Petroleum is headquartered in Findlay, OH. The main corporate address used here is 539 South Main Street, Findlay, OH 45840, while major buyers also sit near operating, regional, plant, field, mine, refinery, store, or project locations.
- HQ
- Findlay, OH
- HQ address
- 539 South Main Street, Findlay, OH 45840
- Offices
- HQ + operating network
- Founded
- 2009
- Employees
- 18,200
- Largest hub
- Findlay, OH
Marathon Petroleum office locations
Marathon Petroleum is anchored by its Findlay, OH headquarters and supported by operating locations tied to refining, marketing, and midstream.
- Findlay, OH - headquarters· Headquarters
- San Antonio, TX - Andeavor legacy operations· Office
- Garyville, LA - refinery· Office
- Galveston Bay, TX - refinery· Office
- MPLX pipeline and terminal network· Office
Sources:Marathon Petroleum locations/contactMarathon Petroleum annual reports
Where is Marathon Petroleum's headquarters?
Marathon Petroleum's headquarters is in Findlay, OH; the public headquarters address used for this profile is 539 South Main Street, Findlay, OH 45840. Headquarters is the best starting point for executive, finance, legal, investor, strategy, procurement, and corporate technology stakeholders.
What other offices does Marathon Petroleum have?
Marathon Petroleum also has a distributed operating footprint: San Antonio, TX - Andeavor legacy operations; Garyville, LA - refinery; Galveston Bay, TX - refinery; MPLX pipeline and terminal network. Public location lists for industrial companies often combine offices, plants, service districts, mines, refineries, stores, and project sites, so sellers should separate corporate buyers from site-level buyers.
What Marathon Petroleum's office footprint means for territory planning
Use Findlay, OH for executive and corporate account planning, but run field events and account mapping around the operating hubs where the use case lives. For operational technology, reliability, safety, supply chain, and engineering deals, local asset leadership can be the real path to budget.
As of June 2026.Sources:Marathon Petroleum locations/contactMarathon Petroleum careers
Marathon Petroleum — frequently asked questions
