AsOf

Marathon Petroleum · founded1887

unverified: One source so far: shown on the record, not asserted, until a second source or a primary one confirms it.

What the statuses mean

Unverified: one source, not a primary one. Asserted once a primary source or a second independent domain confirms it.

Valid from
1887-01-01
Valid until
still holds
Published
no source on record carries a date
Recorded by AsOf
2026-11-11
Checked
2026-11-11 · its source page states the value and the date
Confidence
0.60

Sources

“Founded in 1887 as the Ohio Oil Company, Marathon has a long history of growth”— what the page says, read 2026-11-11

Cite this claim

Each form names the value, its as-of date (1887-01-01), 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 The URL never changes: a superseded claim stays at the same address.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 founded: 1887", as of 1887-01-01. Claim clm_D7BEC2297F44, https://asof.is/claim/clm_D7BEC2297F44, accessed 2026-11-12. Source: https://www.ebsco.com/research-starters/history/marathon-petroleum-corporation/.
APA
AsOf. (1887). Marathon Petroleum founded: 1887 (as of 1887-01-01) [Record clm_D7BEC2297F44]. Retrieved November 12, 2026, from https://asof.is/claim/clm_D7BEC2297F44 (source: https://www.ebsco.com/research-starters/history/marathon-petroleum-corporation/)
BibTeX
@misc{asof_clm_D7BEC2297F44,
  author = {AsOf},
  title = {Marathon Petroleum founded: 1887},
  year = {1887},
  howpublished = {\url{https://asof.is/claim/clm_D7BEC2297F44}},
  note = {Claim clm\_D7BEC2297F44, as of 1887-01-01; source: https://www.ebsco.com/research-starters/history/marathon-petroleum-corporation/},
  urldate = {2026-11-12}
}

On the record

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