AsOf

Marathon Petroleum · PresidentMaryann T. Mannen

valid: Two independent sources agree, or a primary source states it: the record asserts this claim, unless it is a post, is marked for review or carries a confidence below 0.5.asserted

What the statuses mean

Valid from
2024-01-01
Valid until
still holds
Published
2023-12-21
Recorded by AsOf
2026-11-12
Checked
2026-11-12 · its source page states the value and the date
Confidence
0.95

Sources

“On December 21, 2023, Marathon Petroleum Corporation (the “Company”) announced the appointment of Maryann T. Mannen to serve as President, effective January 1, 2024.”— what the page says, read 2026-11-12

Cite this claim

Each form names the value, its as-of date (2024-01-01), the day you read it (2026-11-12), the claim's stable URL and id and its primary source. The URL never changes: a superseded claim stays at the same address.

Plain text
AsOf. "Marathon Petroleum president: Maryann T. Mannen", as of 2024-01-01. Claim clm_5E97614FAAC8, https://asof.is/claim/clm_5E97614FAAC8, accessed 2026-11-12. Source: https://www.sec.gov/Archives/edgar/data/1510295/000151029523000080/0001510295-23-000080-index.htm.
APA
AsOf. (2024). Marathon Petroleum president: Maryann T. Mannen (as of 2024-01-01) [Record clm_5E97614FAAC8]. Retrieved November 12, 2026, from https://asof.is/claim/clm_5E97614FAAC8 (source: https://www.sec.gov/Archives/edgar/data/1510295/000151029523000080/0001510295-23-000080-index.htm)
BibTeX
@misc{asof_clm_5E97614FAAC8,
  author = {AsOf},
  title = {Marathon Petroleum president: Maryann T. Mannen},
  year = {2024},
  howpublished = {\url{https://asof.is/claim/clm_5E97614FAAC8}},
  note = {Claim clm\_5E97614FAAC8, as of 2024-01-01; source: https://www.sec.gov/Archives/edgar/data/1510295/000151029523000080/0001510295-23-000080-index.htm},
  urldate = {2026-11-12}
}

On the record

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