Illinois Oil
Operator of record for 36 catalogued wells across 1 state. Every well below links to its full registry page.
Filed as: Illinois Oil Co., Inc. · Illinois Oil Company · Illinois Oil Company, LLC
At a glance
Illinois Oil is the operator of record for 36 catalogued U.S. oil & gas wells in 1 state. 13 (36%) are active, 21 (58%) plugged & abandoned. Its largest concentration is in Illinois, with 36 wells (100% of its portfolio).
Wells operated
36
Active
13
Plugged
21
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Illinois | 36 |
Well mix
- Oil wells
- 21
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 36%
Is this your company?
Claim Illinois Oil to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Illinois Oil operate?
Illinois Oil's catalogued wells are spread across 1 state: Illinois (36). Its 36 Illinois wells are 0.0% 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 Illinois Oil’s wells are active, plugged or orphaned?
36% of Illinois Oil's catalogued wells are active, 7 percentage points above the national share of 29%. 58% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Illinois Oil operate?
By product class, 21 (58%) 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 Dueker, Donnie 1 in Clay, IL at 2,890 ft. The wells listed below sit in Clay (IL), Marion (IL), Lawrence (IL), Wabash (IL) and Christian (IL). 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 Illinois Oil
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Dueker, Donnie 1 | 12-025-28888 | Active | Oil | Clay, IL | Illinois Oil Company, LLC | 2,890 ft |
| Dueker, Donnie 3 | 12-025-03827 | Active | Oil | Clay, IL | Illinois Oil Company, LLC | 2,866 ft |
| Dueker, Donnie 2 | 12-025-29028 | Active | Oil | Clay, IL | Illinois Oil Company, LLC | 2,517 ft |
| Hargis Trust 1 | 12-121-28181 | Active | Oil | Marion, IL | Illinois Oil Company, LLC | 2,450 ft |
| McCroskey Heirs O-1 | 12-101-00976 | Active | Oil | Lawrence, IL | Illinois Oil Co., Inc. | 2,325 ft |
| Smith-Nigh Community 3 | 12-185-02485 | Plugged & abandoned | Other type | Wabash, IL | Illinois Oil Co., Inc. | 2,040 ft |
| Hargis 2-A | 12-121-03033 | Active | Oil | Marion, IL | Illinois Oil Company, LLC | 2,020 ft |
| Pon-Lay-Mac Farms 2 | 12-021-25196 | Active | Oil | Christian, IL | Illinois Oil Company, LLC | 1,980 ft |
| Spidel, E. O-8 | 12-101-01583 | Plugged & abandoned | Oil | Lawrence, IL | Illinois Oil Co., Inc. | 1,970 ft |
| Spidel, E. O-4 | 12-101-01386 | Plugged & abandoned | Injection | Lawrence, IL | Illinois Oil Co., Inc. | 1,956 ft |
| Spidel, G. 0-6 | 12-101-01538 | Plugged & abandoned | Injection | Lawrence, IL | Illinois Oil Co., Inc. | 1,955 ft |
| Trotters Mfg, Inc. 1 | 12-021-25203 | Plugged & abandoned | Other type | Christian, IL | Illinois Oil Company, LLC | 1,920 ft |
Deepest first where depth is published. See all 36 wells →
Frequently asked questions
How many wells does Illinois Oil operate?
Illinois Oil is the operator of record for 36 catalogued oil & gas wells, with the largest concentration in Illinois (36). Only wells in states WellCensus has ingested are counted.
How many of Illinois Oil's wells are still active?
13 of Illinois Oil's catalogued wells are active; 21 are plugged & abandoned.
In which states does Illinois Oil operate wells?
Illinois Oil is the operator of record for wells in Illinois (36).
Does Illinois Oil operate mostly oil or gas wells?
21 of Illinois Oil's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Illinois Oil's deepest well?
Among wells with a published depth, Dueker, Donnie 1 in Clay, IL is the deepest at 2,890 ft.
Where Illinois 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, “Illinois Oil — well portfolio”, https://wellcensus.com/operators/illinois-oil-92297 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).