Allen Oil
Operator of record for 175 catalogued wells across 6 states. Every well below links to its full registry page.
Filed as: ALLEN OIL · ALLEN OIL CO · ALLEN OIL COMPANY · ALLEN OIL CORP · …
At a glance
Allen Oil is the operator of record for 175 catalogued U.S. oil & gas wells in 6 states. 12 (7%) are active, 159 (91%) plugged & abandoned and 2 flagged as orphaned. Its largest concentration is in Pennsylvania, with 102 wells (58% of its portfolio).
Wells operated
175
Active
12
Plugged
159
Orphaned
2
Portfolio by state
| State | Wells |
|---|---|
| Pennsylvania | 102 |
| Wyoming | 46 |
| Oklahoma | 14 |
| Montana | 6 |
| Kentucky | 4 |
| Illinois | 3 |
Well mix
- Oil wells
- 150
- Gas wells
- 1
- Shut-in
- 1
- Active share
- 7%
Is this your company?
Claim Allen Oil to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Allen Oil operate?
Allen Oil's catalogued wells are spread across 6 states: Pennsylvania (102), Wyoming (46), Oklahoma (14), Montana (6) and Kentucky (4) and 1 more. Its 102 Pennsylvania wells are 0.0% of the 224,189 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 Allen Oil’s wells are active, plugged or orphaned?
7% of Allen Oil's catalogued wells are active, 22 percentage points below the national share of 29%. 91% are plugged & abandoned, against 47% nationally. 1 wells (0.6%) are shut-in — unplugged but idle. 2 wells filed under this name are flagged as orphaned — unplugged, with no operator able to plug them.
What kinds of wells does Allen Oil operate?
By product class, 150 (86%) are oil wells and 1 (0.6%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is Mann 1 in Cascade, MT at 3,428 ft. The wells listed below sit in Cascade (MT), Teton (MT), Natrona (WY), Big Horn (MT), Park (WY) and Big Horn (WY) and other counties. State filings spell the name 5 ways; WellCensus merges exact-normalized spellings only, so subsidiaries and affiliates keep their own pages.
Notable wells operated by Allen Oil
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Mann 1 | 25-013-05054 | Plugged & abandoned | Other type | Cascade, MT | Allen Oil Co. | 3,428 ft |
| Rainbow Syndicate 1 | 25-099-05009 | Plugged & abandoned | Other type | Teton, MT | Allen Oil Co. | 3,200 ft |
| Govt 1 | 49-025-08087 | Plugged & abandoned | Oil | Natrona, WY | Allen Oil | 2,990 ft |
| Ellington 1 | 25-003-05196 | Plugged & abandoned | Other type | Big Horn, MT | Allen Oil Co. | 2,750 ft |
| Govt 1 | 49-029-05986 | Plugged & abandoned | Oil | Park, WY | Allen Oil | 2,525 ft |
| Govt 28 | 49-003-06088 | Plugged & abandoned | Oil | Big Horn, WY | Allen Oil | 2,000 ft |
| Well 14 | 49-003-06144 | Plugged & abandoned | Oil | Big Horn, WY | Allen Oil | 1,905 ft |
| Brown 2 | 49-003-05951 | Plugged & abandoned | Oil | Big Horn, WY | Allen Oil | 1,885 ft |
| Brown 1 | 49-029-07022 | Plugged & abandoned | Oil | Park, WY | Allen Oil | 1,722 ft |
| Govt 28 | 49-003-06182 | Plugged & abandoned | Gas | Big Horn, WY | Allen Oil | 1,720 ft |
| 1 | 49-027-05639 | Plugged & abandoned | Oil | Niobrara, WY | Allen Oil | 1,500 ft |
| Hargis, H. S. 21-C | 12-033-07535 | Plugged & abandoned | Other type | Crawford, IL | Allen Oil Co. | 1,475 ft |
Deepest first where depth is published. See all 175 wells →
Frequently asked questions
How many wells does Allen Oil operate?
Allen Oil is the operator of record for 175 catalogued oil & gas wells, with the largest concentration in Pennsylvania (102). Only wells in states WellCensus has ingested are counted.
How many of Allen Oil's wells are still active?
12 of Allen Oil's catalogued wells are active; 159 are plugged & abandoned and 2 are flagged as orphaned.
In which states does Allen Oil operate wells?
Allen Oil is the operator of record for wells in Pennsylvania (102), Wyoming (46), Oklahoma (14), Montana (6), Kentucky (4) and Illinois (3).
Does Allen Oil operate mostly oil or gas wells?
150 of Allen Oil's catalogued wells are oil wells and 1 are gas wells; the rest are injection, service or unclassified wells.
What is Allen Oil's deepest well?
Among wells with a published depth, Mann 1 in Cascade, MT is the deepest at 3,428 ft.
Where Allen Oil's wells are
- Oil & gas wells in Pennsylvania· 102 operated by Allen Oil
- Oil & gas wells in Wyoming· 46 operated by Allen Oil
- Oil & gas wells in Oklahoma· 14 operated by Allen Oil
- Oil & gas wells in Montana· 6 operated by Allen Oil
- Oil & gas wells in Kentucky· 4 operated by Allen Oil
- Oil & gas wells in Illinois· 3 operated by Allen Oil
- Largest U.S. well operators
- All well operators
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, “Allen Oil — well portfolio”, https://wellcensus.com/operators/allen-oil-6950 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).