Dunbar Drilling
Operator of record for 3 catalogued wells across 3 states. Every well below links to its full registry page.
Filed as: DUNBAR DRILLING COMPANY · Dunbar Drilling Co
At a glance
Dunbar Drilling is the operator of record for 3 catalogued U.S. oil & gas wells in 3 states. None is listed as active, 3 (100%) are plugged & abandoned. Its largest concentration is in Colorado, with 1 wells (33% of its portfolio).
Wells operated
3
Active
0
Plugged
3
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Colorado | 1 |
| Illinois | 1 |
| Wyoming | 1 |
Well mix
- Oil wells
- 1
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 0%
Is this your company?
Claim Dunbar Drilling to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Dunbar Drilling operate?
Dunbar Drilling's catalogued wells are spread across 3 states: Colorado (1), Illinois (1) and Wyoming (1). Its 1 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 Dunbar Drilling’s wells are active, plugged or orphaned?
0% of Dunbar Drilling'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 Dunbar Drilling operate?
By product class, 1 (33%) 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 Simmons 1 in Weston, WY at 6,781 ft. The wells listed below sit in Weston (WY), Arapahoe (CO) and Effingham (IL). 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 Dunbar Drilling
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Simmons 1 | 49-045-05833 | Plugged & abandoned | Oil | Weston, WY | Dunbar Drilling Company | 6,781 ft |
| 1 Gould | 05-005-05042 | Plugged & abandoned | Other type | Arapahoe, CO | Dunbar Drilling Company | 6,128 ft |
| Cremer 1 | 12-049-00483 | Plugged & abandoned | Other type | Effingham, IL | Dunbar Drilling Co | 2,802 ft |
Deepest first where depth is published. See all 3 wells →
Frequently asked questions
How many wells does Dunbar Drilling operate?
Dunbar Drilling is the operator of record for 3 catalogued oil & gas wells, with the largest concentration in Colorado (1). Only wells in states WellCensus has ingested are counted.
How many of Dunbar Drilling's wells are still active?
0 of Dunbar Drilling's catalogued wells are active; 3 are plugged & abandoned.
In which states does Dunbar Drilling operate wells?
Dunbar Drilling is the operator of record for wells in Colorado (1), Illinois (1) and Wyoming (1).
Does Dunbar Drilling operate mostly oil or gas wells?
1 of Dunbar Drilling's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Dunbar Drilling's deepest well?
Among wells with a published depth, Simmons 1 in Weston, WY is the deepest at 6,781 ft.
Where Dunbar Drilling'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, “Dunbar Drilling — well portfolio”, https://wellcensus.com/operators/dunbar-drilling-19536 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).