Marathon Ashland Petroleum
Operator of record for 13 catalogued wells across 1 state. Every well below links to its full registry page.
Filed as: MARATHON ASHLAND PETROLEUM · MARATHON ASHLAND PETROLEUM LLC
At a glance
Marathon Ashland Petroleum is the operator of record for 13 catalogued U.S. oil & gas wells in 1 state. None is listed as active, 13 (100%) are plugged & abandoned. Its largest concentration is in Ohio, with 13 wells (100% of its portfolio).
Wells operated
13
Active
0
Plugged
13
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Ohio | 13 |
Well mix
- Oil wells
- 4
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 0%
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Claim Marathon Ashland Petroleum to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Marathon Ashland Petroleum operate?
Marathon Ashland Petroleum's catalogued wells are spread across 1 state: Ohio (13). Its 13 Ohio wells are 0.0% of the 242,052 catalogued in that state — its largest share of any state. Counts cover only states whose registries WellCensus has ingested with operator names; wells in Nebraska and Texas (location indexes) and in states without a registry ingest are not yet attributed to any operator.
How many of Marathon Ashland Petroleum’s wells are active, plugged or orphaned?
0% of Marathon Ashland Petroleum's catalogued wells are active, 29 percentage points below the national share of 29%. 100% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Marathon Ashland Petroleum operate?
By product class, 4 (31%) are oil wells and 0 (0%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is State Of Ohio Osu 1 in Allen, OH at 1,400 ft. The wells listed below sit in Allen (OH), Wyandot (OH), Wood (OH) and Cuyahoga (OH). State filings spell the name 2 ways; WellCensus merges exact-normalized spellings only, so subsidiaries and affiliates keep their own pages.
Notable wells operated by Marathon Ashland Petroleum
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| State Of Ohio Osu 1 | 34-003-60760 | Plugged & abandoned | Other type | Allen, OH | Marathon Ashland Petroleum | 1,400 ft |
| State Of Ohio Osu 7 | 34-003-61049 | Plugged & abandoned | Other type | Allen, OH | Marathon Ashland Petroleum | 1,400 ft |
| State Of Ohio Osu 9 | 34-003-61055 | Plugged & abandoned | Other type | Allen, OH | Marathon Ashland Petroleum | 1,400 ft |
| State Of Ohio Osu 3 | 34-003-61056 | Plugged & abandoned | Other type | Allen, OH | Marathon Ashland Petroleum | 1,400 ft |
| State Of Ohio Osu 10 | 34-003-61057 | Plugged & abandoned | Other type | Allen, OH | Marathon Ashland Petroleum | 1,400 ft |
| State Of Ohio Osu 11 | 34-003-61058 | Plugged & abandoned | Other type | Allen, OH | Marathon Ashland Petroleum | 1,400 ft |
| State Of Ohio Osu 6 | 34-003-61060 | Plugged & abandoned | Other type | Allen, OH | Marathon Ashland Petroleum | 1,400 ft |
| State Of Ohio Osu 4 | 34-003-61062 | Plugged & abandoned | Other type | Allen, OH | Marathon Ashland Petroleum | 1,400 ft |
| State Of Ohio Osu 5 | 34-003-61063 | Plugged & abandoned | Other type | Allen, OH | Marathon Ashland Petroleum | 1,400 ft |
| Chaffee C C 7 | 34-175-60012 | Plugged & abandoned | Oil | Wyandot, OH | Marathon Ashland Petroleum LLC | 1,300 ft |
| Mcdonald A C 4 | 34-173-61244 | Plugged & abandoned | Oil | Wood, OH | Marathon Ashland Petroleum LLC | 1,200 ft |
| Marathon Oil 1 | 34-035-20523 | Plugged & abandoned | Oil | Cuyahoga, OH | Marathon Ashland Petroleum LLC | 800 ft |
Deepest first where depth is published. See all 13 wells →
Frequently asked questions
How many wells does Marathon Ashland Petroleum operate?
Marathon Ashland Petroleum is the operator of record for 13 catalogued oil & gas wells, with the largest concentration in Ohio (13). Only wells in states WellCensus has ingested are counted.
How many of Marathon Ashland Petroleum's wells are still active?
0 of Marathon Ashland Petroleum's catalogued wells are active; 13 are plugged & abandoned.
In which states does Marathon Ashland Petroleum operate wells?
Marathon Ashland Petroleum is the operator of record for wells in Ohio (13).
Does Marathon Ashland Petroleum operate mostly oil or gas wells?
4 of Marathon Ashland Petroleum's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Marathon Ashland Petroleum's deepest well?
Among wells with a published depth, State Of Ohio Osu 1 in Allen, OH is the deepest at 1,400 ft.
Where Marathon Ashland Petroleum's wells are
About this data
Source: State oil & gas regulator registries (operator of record as filed, exact-normalized across states) plus the USGS United States Documented Orphaned Well Database (2026), as published October 10, 2026 — WellCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: WellCensus, “Marathon Ashland Petroleum — well portfolio”, https://wellcensus.com/operators/marathon-ashland-petroleum-75615 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).