Who are Marathon Petroleum's decision-makers?
Marathon Petroleum's top decision-makers include Maryann T. Mannen, John J. Quaid, Michael J. Hennigan, Raymond L. Brooks. Buying decisions depend on the business unit, asset base, regulatory exposure, plant or field impact, cybersecurity requirements, and finance/procurement review.
- CEO
- Maryann T. Mannen
- CFO/key exec
- John J. Quaid
- Founded
- 2009
- Employees
- 18,200
- HQ
- Findlay, OH
- Notable
- Refining and Marketing
- Maryann T. MannenPresident and Chief Executive OfficerCEO since 2024Leads refining, marketing, and MPLX-linked capital strategy.
- John J. QuaidExecutive Vice President and Chief Financial OfficerCFO since 2021Leads finance, treasury, and investor communications.
- Michael J. HenniganExecutive ChairmanExecutive chairman after CEO serviceSupports strategy and MPLX-related governance.
- Raymond L. BrooksExecutive Vice President, RefiningSenior executive leadershipLeads refining operations and reliability priorities.
Who leads Marathon Petroleum?
Marathon Petroleum is led by Maryann T. Mannen as President and Chief Executive Officer. The broader executive group includes finance, operations, legal, technology, segment, and commercial leaders who control priorities across Refining and Marketing, Midstream via MPLX, Renewable diesel, Brand marketing, Logistics.
Who actually makes buying decisions at Marathon Petroleum?
Large purchases usually need a business sponsor plus procurement, finance, legal, security, risk, and the relevant asset or operations leader. For plant, field, grid, mine, or refinery systems, operational leadership and engineering matter as much as corporate IT.
How is Marathon Petroleum organized as it scales?
Marathon Petroleum is organized around operating segments, corporate functions, and asset-level teams. Sellers should map the budget owner first, then identify technical approvers, security reviewers, procurement process owners, and executives accountable for the metric the project improves.
As of June 2026.Sources:Marathon Petroleum leadershipMarathon Petroleum annual reports
Marathon Petroleum — frequently asked questions
