Triangle Oil
Operator of record for 150 catalogued wells across 5 states. Every well below links to its full registry page.
Filed as: TRIANGLE OIL CO · TRIANGLE OIL COMPANY · Triangle Oil · Triangle Oil Co. · …
At a glance
Triangle Oil is the operator of record for 150 catalogued U.S. oil & gas wells in 5 states. 27 (18%) are active, 89 (59%) plugged & abandoned and 5 flagged as orphaned. Its largest concentration is in Illinois, with 96 wells (64% of its portfolio).
Wells operated
150
Active
27
Plugged
89
Orphaned
5
Portfolio by state
| State | Wells |
|---|---|
| Illinois | 96 |
| Kentucky | 48 |
| Oklahoma | 4 |
| California | 1 |
| Montana | 1 |
Well mix
- Oil wells
- 71
- Gas wells
- 0
- Shut-in
- 1
- Active share
- 18%
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Claim your operator profileWhere does Triangle Oil operate?
Triangle Oil's catalogued wells are spread across 5 states: Illinois (96), Kentucky (48), Oklahoma (4), California (1) and Montana (1). Its 96 Illinois wells are 0.1% of the 174,478 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 Triangle Oil’s wells are active, plugged or orphaned?
18% of Triangle Oil's catalogued wells are active, 11 percentage points below the national share of 29%. 59% are plugged & abandoned, against 47% nationally. 1 wells (0.7%) are shut-in — unplugged but idle. 5 wells filed under this name are flagged as orphaned — unplugged, with no operator able to plug them.
What kinds of wells does Triangle Oil operate?
By product class, 71 (47%) 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 Cash 2 in Clay, IL at 4,856 ft. The wells listed below sit in Clay (IL), Knox (KY), Richland (IL), Wayne (IL), Hamilton (IL) and White (IL) and other counties. State filings spell the name 6 ways; WellCensus merges exact-normalized spellings only, so subsidiaries and affiliates keep their own pages.
Notable wells operated by Triangle Oil
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Cash 2 | 12-025-28694 | Plugged & abandoned | Other type | Clay, IL | Triangle Oil Co., Inc. | 4,856 ft |
| Stafford, J 1 | KGS record 11346 | Plugged & abandoned | Other type | Knox, KY | Triangle Oil Co | 4,502 ft |
| Bunn Sam 2 | 12-159-03077 | Plugged & abandoned | Oil | Richland, IL | Triangle Oil Co., Inc. | 3,653 ft |
| Snively L 1 | 12-159-02883 | Plugged & abandoned | Other type | Richland, IL | Triangle Oil Co., Inc. | 3,533 ft |
| Triangle Oil 1 | 12-191-03208 | Plugged & abandoned | Other type | Wayne, IL | Triangle Oil Co., Inc. | 3,506 ft |
| Moore 1 | 12-065-01126 | Plugged & abandoned | Other type | Hamilton, IL | Triangle Oil Co., Inc. | 3,432 ft |
| Miller W-1 | 12-193-01190 | Plugged & abandoned | Injection | White, IL | Triangle Oil Company | 3,425 ft |
| Hughes Carrie 1 | 12-193-02654 | Plugged & abandoned | Oil | White, IL | Triangle Oil Co., Inc. | 3,414 ft |
| McKinzie J 1 | 12-047-02054 | Plugged & abandoned | Oil | Edwards, IL | Triangle Oil Co., Inc. | 3,404 ft |
| Carrell, Ethel 1 | 12-065-02403 | Plugged & abandoned | Oil | Hamilton, IL | Triangle Oil Co., Inc. | 3,385 ft |
| Williams P 1 | 12-159-03090 | Plugged & abandoned | Other type | Richland, IL | Triangle Oil Co., Inc. | 3,373 ft |
| Bowen C 1 | 12-159-03075 | Plugged & abandoned | Oil | Richland, IL | Triangle Oil Co., Inc. | 3,370 ft |
Deepest first where depth is published. See all 150 wells →
Frequently asked questions
How many wells does Triangle Oil operate?
Triangle Oil is the operator of record for 150 catalogued oil & gas wells, with the largest concentration in Illinois (96). Only wells in states WellCensus has ingested are counted.
How many of Triangle Oil's wells are still active?
27 of Triangle Oil's catalogued wells are active; 89 are plugged & abandoned and 5 are flagged as orphaned.
In which states does Triangle Oil operate wells?
Triangle Oil is the operator of record for wells in Illinois (96), Kentucky (48), Oklahoma (4), California (1) and Montana (1).
Does Triangle Oil operate mostly oil or gas wells?
71 of Triangle Oil's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Triangle Oil's deepest well?
Among wells with a published depth, Cash 2 in Clay, IL is the deepest at 4,856 ft.
Where Triangle Oil's wells are
- Oil & gas wells in Illinois· 96 operated by Triangle Oil
- Oil & gas wells in Kentucky· 48 operated by Triangle Oil
- Oil & gas wells in Oklahoma· 4 operated by Triangle Oil
- Oil & gas wells in California· 1 operated by Triangle Oil
- Oil & gas wells in Montana· 1 operated by Triangle 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, “Triangle Oil — well portfolio”, https://wellcensus.com/operators/triangle-oil-12152 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).