Delfern Oil
Operator of record for 7 catalogued wells across 3 states. Every well below links to its full registry page.
Filed as: DELFERN OIL CO · DELFERN OIL COMPANY · Delfern Oil
At a glance
Delfern Oil is the operator of record for 7 catalogued U.S. oil & gas wells in 3 states. None is listed as active, 7 (100%) are plugged & abandoned. Its largest concentration is in Colorado, with 5 wells (71% of its portfolio).
Wells operated
7
Active
0
Plugged
7
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Colorado | 5 |
| Montana | 1 |
| Wyoming | 1 |
Well mix
- Oil wells
- 3
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 0%
Is this your company?
Claim Delfern Oil to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Delfern Oil operate?
Delfern Oil's catalogued wells are spread across 3 states: Colorado (5), Montana (1) and Wyoming (1). Its 5 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 Delfern Oil’s wells are active, plugged or orphaned?
0% of Delfern Oil'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 Delfern Oil operate?
By product class, 3 (43%) 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 Dixon 1 in Weston, WY at 6,995 ft. The wells listed below sit in Weston (WY), Logan (CO) and Liberty (MT). 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 Delfern Oil
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Dixon 1 | 49-045-05136 | Plugged & abandoned | Oil | Weston, WY | Delfern Oil Company | 6,995 ft |
| 3 Uprr Peavy | 05-075-07304 | Plugged & abandoned | Other type | Logan, CO | Delfern Oil Co | 6,262 ft |
| 1 Uprr-Peavy | 05-075-07296 | Plugged & abandoned | Oil | Logan, CO | Delfern Oil Co | 6,243 ft |
| 1 Shell -Bonham | 05-075-07281 | Plugged & abandoned | Other type | Logan, CO | Delfern Oil Co | 6,226 ft |
| 2 Uprr Peavy | 05-075-07318 | Plugged & abandoned | Oil | Logan, CO | Delfern Oil Co | 6,220 ft |
| 1 State | 05-075-06843 | Plugged & abandoned | Other type | Logan, CO | Delfern Oil Co | 5,076 ft |
| State 7-7 | 25-051-05325 | Plugged & abandoned | Other type | Liberty, MT | Delfern Oil | 2,955 ft |
Deepest first where depth is published. See all 7 wells →
Frequently asked questions
How many wells does Delfern Oil operate?
Delfern Oil is the operator of record for 7 catalogued oil & gas wells, with the largest concentration in Colorado (5). Only wells in states WellCensus has ingested are counted.
How many of Delfern Oil's wells are still active?
0 of Delfern Oil's catalogued wells are active; 7 are plugged & abandoned.
In which states does Delfern Oil operate wells?
Delfern Oil is the operator of record for wells in Colorado (5), Montana (1) and Wyoming (1).
Does Delfern Oil operate mostly oil or gas wells?
3 of Delfern Oil's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Delfern Oil's deepest well?
Among wells with a published depth, Dixon 1 in Weston, WY is the deepest at 6,995 ft.
Where Delfern 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, “Delfern Oil — well portfolio”, https://wellcensus.com/operators/delfern-oil-7596 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).