Cap Oil
Operator of record for 87 catalogued wells across 2 states. Every well below links to its full registry page.
Filed as: CAP OIL COMPANY · Cap Oil Co.
At a glance
Cap Oil is the operator of record for 87 catalogued U.S. oil & gas wells in 2 states. 81 (93%) are active, 5 (6%) plugged & abandoned. Its largest concentration is in Oklahoma, with 86 wells (99% of its portfolio).
Wells operated
87
Active
81
Plugged
5
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Oklahoma | 86 |
| Illinois | 1 |
Well mix
- Oil wells
- 70
- Gas wells
- 3
- Shut-in
- 0
- Active share
- 93%
Is this your company?
Claim Cap Oil to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Cap Oil operate?
Cap Oil's catalogued wells are spread across 2 states: Oklahoma (86) and Illinois (1). Its 86 Oklahoma wells are 0.0% of the 456,595 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 Cap Oil’s wells are active, plugged or orphaned?
93% of Cap Oil's catalogued wells are active, 64 percentage points above the national share of 29%. 6% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Cap Oil operate?
By product class, 70 (80%) are oil wells and 3 (3%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is Johnson 1 in Menard, IL at 1,100 ft. The wells listed below sit in Menard (IL), Seminole (OK) and Pontotoc (OK). 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 Cap Oil
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Johnson 1 | 12-129-20170 | Plugged & abandoned | Other type | Menard, IL | Cap Oil Co. | 1,100 ft |
| Rooke #3 | 35-133-23120 | Active | Oil | Seminole, OK | Cap Oil Company | — |
| P.G. Parks #2 | 35-133-23952 | Active | Other type | Seminole, OK | Cap Oil Company | — |
| Parks P G #1 | 35-133-04074 | Plugged & abandoned | Oil | Seminole, OK | Cap Oil Company | — |
| Case #2 | 35-133-22194 | Active | Oil | Seminole, OK | Cap Oil Company | — |
| Huff #7 | 35-133-22405 | Active | Oil | Seminole, OK | Cap Oil Company | — |
| Welch #1 | 35-133-04067 | Active | Other type | Seminole, OK | Cap Oil Company | — |
| Sallee W A #1 | 35-123-03015 | Active | Oil | Pontotoc, OK | Cap Oil Company | — |
| Lain #4 | 35-123-04671 | Active | Oil | Pontotoc, OK | Cap Oil Company | — |
| Lain #5 | 35-123-04670 | Active | Other type | Pontotoc, OK | Cap Oil Company | — |
| Charty #1 | 35-133-04300 | Active | Oil | Seminole, OK | Cap Oil Company | — |
| Wilma Keeton #1 | 35-133-00805 | Active | Oil | Seminole, OK | Cap Oil Company | — |
Deepest first where depth is published. See all 87 wells →
Frequently asked questions
How many wells does Cap Oil operate?
Cap Oil is the operator of record for 87 catalogued oil & gas wells, with the largest concentration in Oklahoma (86). Only wells in states WellCensus has ingested are counted.
How many of Cap Oil's wells are still active?
81 of Cap Oil's catalogued wells are active; 5 are plugged & abandoned.
In which states does Cap Oil operate wells?
Cap Oil is the operator of record for wells in Oklahoma (86) and Illinois (1).
Does Cap Oil operate mostly oil or gas wells?
70 of Cap Oil's catalogued wells are oil wells and 3 are gas wells; the rest are injection, service or unclassified wells.
What is Cap Oil's deepest well?
Among wells with a published depth, Johnson 1 in Menard, IL is the deepest at 1,100 ft.
Where Cap Oil'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, “Cap Oil — well portfolio”, https://wellcensus.com/operators/cap-oil-4193 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).