Warren Oil
Operator of record for 7 catalogued wells across 3 states. Every well below links to its full registry page.
Filed as: WARREN OIL · WARREN OIL CO · Warren Oil Co.
At a glance
Warren Oil is the operator of record for 7 catalogued U.S. oil & gas wells in 3 states. 1 (14%) are active, 4 (57%) plugged & abandoned. Its largest concentration is in Illinois, with 4 wells (57% of its portfolio).
Wells operated
7
Active
1
Plugged
4
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Illinois | 4 |
| Michigan | 2 |
| Wyoming | 1 |
Well mix
- Oil wells
- 3
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 14%
Is this your company?
Claim Warren Oil to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Warren Oil operate?
Warren Oil's catalogued wells are spread across 3 states: Illinois (4), Michigan (2) and Wyoming (1). Its 2 Michigan wells are 0.0% of the 85,673 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 Warren Oil’s wells are active, plugged or orphaned?
14% of Warren Oil's catalogued wells are active, 15 percentage points below the national share of 29%. 57% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Warren 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 Hemrich 1 in Jasper, IL at 3,342 ft. The wells listed below sit in Jasper (IL), Richland (IL), Montcalm (MI), Wayne (IL), Edwards (IL) and Carbon (WY). 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 Warren Oil
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Hemrich 1 | 12-079-02249 | Active | Oil | Jasper, IL | Warren Oil Co. | 3,342 ft |
| Groff D 1 | 12-159-03087 | Plugged & abandoned | Other type | Richland, IL | Warren Oil Co. | 3,270 ft |
| Warren, M. Estate 2 | 21-117-03361 | Other status | Other type | Montcalm, MI | Warren Oil Co | 3,255 ft |
| Burkett-Yohe 1 | 12-191-07886 | Plugged & abandoned | Other type | Wayne, IL | Warren Oil Co. | 3,250 ft |
| Warren, M. Estate 1 | 21-117-02694 | Other status | Other type | Montcalm, MI | Warren Oil Co | 3,247 ft |
| Seigle Glen 1 | 12-047-02025 | Plugged & abandoned | Oil | Edwards, IL | Warren Oil Co. | 3,106 ft |
| 1 | 49-007-05554 | Plugged & abandoned | Oil | Carbon, WY | Warren Oil | 50 ft |
Deepest first where depth is published. See all 7 wells →
Frequently asked questions
How many wells does Warren Oil operate?
Warren Oil is the operator of record for 7 catalogued oil & gas wells, with the largest concentration in Illinois (4). Only wells in states WellCensus has ingested are counted.
How many of Warren Oil's wells are still active?
1 of Warren Oil's catalogued wells are active; 4 are plugged & abandoned.
In which states does Warren Oil operate wells?
Warren Oil is the operator of record for wells in Illinois (4), Michigan (2) and Wyoming (1).
Does Warren Oil operate mostly oil or gas wells?
3 of Warren Oil's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Warren Oil's deepest well?
Among wells with a published depth, Hemrich 1 in Jasper, IL is the deepest at 3,342 ft.
Where Warren 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, “Warren Oil — well portfolio”, https://wellcensus.com/operators/warren-oil-24502 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).