Cimarron Oil
Operator of record for 24 catalogued wells across 3 states. Every well below links to its full registry page.
Filed as: CIMARRON OIL CO INC · CIMARRON OIL COMPANY · Cimarron Oil Corp.
At a glance
Cimarron Oil is the operator of record for 24 catalogued U.S. oil & gas wells in 3 states. None is listed as active, 22 (92%) are plugged & abandoned and 1 flagged as orphaned. Its largest concentration is in Colorado, with 17 wells (71% of its portfolio).
Wells operated
24
Active
0
Plugged
22
Orphaned
1
Portfolio by state
| State | Wells |
|---|---|
| Colorado | 17 |
| Illinois | 4 |
| Oklahoma | 3 |
Well mix
- Oil wells
- 5
- Gas wells
- 1
- Shut-in
- 0
- Active share
- 0%
Is this your company?
Claim Cimarron Oil to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Cimarron Oil operate?
Cimarron Oil's catalogued wells are spread across 3 states: Colorado (17), Illinois (4) and Oklahoma (3). Its 17 Colorado wells are 0.0% of the 124,327 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 Cimarron Oil’s wells are active, plugged or orphaned?
0% of Cimarron Oil's catalogued wells are active, 29 percentage points below the national share of 29%. 92% are plugged & abandoned, against 47% nationally. 1 wells filed under this name are flagged as orphaned — unplugged, with no operator able to plug them.
What kinds of wells does Cimarron Oil operate?
By product class, 5 (21%) are oil wells and 1 (4%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is 2 Cimarron-Penrod in Adams, CO at 8,020 ft. The wells listed below sit in Adams (CO), Morgan (CO) and Washington (CO). State filings spell the name 3 ways; WellCensus merges exact-normalized spellings only, so subsidiaries and affiliates keep their own pages.
Notable wells operated by Cimarron Oil
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| 2 Cimarron-Penrod | 05-001-08830 | Plugged & abandoned | Other type | Adams, CO | Cimarron Oil Co Inc | 8,020 ft |
| 2 Helzer | 05-001-08796 | Plugged & abandoned | Other type | Adams, CO | Cimarron Oil Co Inc | 7,460 ft |
| 5 Dumler | 05-001-07261 | Plugged & abandoned | Oil | Adams, CO | Cimarron Oil Co Inc | 7,150 ft |
| 43-13 Rake | 05-087-07940 | Plugged & abandoned | Other type | Morgan, CO | Cimarron Oil Co Inc | 6,302 ft |
| 11-18 State | 05-087-07964 | Plugged & abandoned | Other type | Morgan, CO | Cimarron Oil Co Inc | 6,300 ft |
| 41-12 Danford | 05-087-07969 | Plugged & abandoned | Oil | Morgan, CO | Cimarron Oil Co Inc | 6,080 ft |
| 1 Green | 05-087-05847 | Plugged & abandoned | Other type | Morgan, CO | Cimarron Oil Co Inc | 6,065 ft |
| 1 Harris | 05-087-06034 | Plugged & abandoned | Other type | Morgan, CO | Cimarron Oil Co Inc | 5,955 ft |
| 1 Reed | 05-087-06074 | Plugged & abandoned | Other type | Morgan, CO | Cimarron Oil Co Inc | 5,928 ft |
| 1 Hanley | 05-121-05588 | Plugged & abandoned | Other type | Washington, CO | Cimarron Oil Co Inc | 5,270 ft |
| 1 Miller | 05-087-05953 | Plugged & abandoned | Other type | Morgan, CO | Cimarron Oil Co Inc | 5,263 ft |
| 1 Painter | 05-087-05506 | Plugged & abandoned | Oil | Morgan, CO | Cimarron Oil Co Inc | 5,160 ft |
Deepest first where depth is published. See all 24 wells →
Frequently asked questions
How many wells does Cimarron Oil operate?
Cimarron Oil is the operator of record for 24 catalogued oil & gas wells, with the largest concentration in Colorado (17). Only wells in states WellCensus has ingested are counted.
How many of Cimarron Oil's wells are still active?
0 of Cimarron Oil's catalogued wells are active; 22 are plugged & abandoned and 1 are flagged as orphaned.
In which states does Cimarron Oil operate wells?
Cimarron Oil is the operator of record for wells in Colorado (17), Illinois (4) and Oklahoma (3).
Does Cimarron Oil operate mostly oil or gas wells?
5 of Cimarron Oil's catalogued wells are oil wells and 1 are gas wells; the rest are injection, service or unclassified wells.
What is Cimarron Oil's deepest well?
Among wells with a published depth, 2 Cimarron-Penrod in Adams, CO is the deepest at 8,020 ft.
Where Cimarron 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, “Cimarron Oil — well portfolio”, https://wellcensus.com/operators/cimarron-oil-5371 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).