Marathon Petroleum Corp
Public company- Headquarters
- FINDLAY, Ohio
- Ticker
- MPC
- CIK
- 0001510295
WARN notices since 2024
Workers affected since 2024
Executive changes, last 12 months
Last event
Workers affected over time
Cumulative workers in WARN notices since 2024
Not enough notices to chart yet.
Leadership
| Role and person | Since | Change |
|---|---|---|
| directorDavid E. Constable | Oct 29, 2026 | Appointed |
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- Executive appointment
director appointed: David E. Constable
David E. Constable was named director of Marathon Petroleum Corp, effective March 1, 2027. The company reported the change in an 8-K that cites Item 5.02.
Source: SEC 8-K, filed Oct 29, 2026Role: director
layoffs from Oct 5, 2020
WARN noticeWARN notice: Martinez, CA
Marathon Petroleum Company LP filed a WARN notice with the California WARN list on Aug 3, 2020 covering 702 workers in Martinez. The layoffs take effect on Oct 5, 2020.
Source: California WARN list, filed Aug 3, 2020Site: Martinez, CA
Workers affected: 702
Last verified Nov 8, 2026