Wark Oil
Operator of record for 32 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Wark Oil is the operator of record for 32 catalogued U.S. oil & gas wells in 1 state. 8 (25%) are active, 14 (44%) plugged & abandoned. Its largest concentration is in Illinois, with 32 wells (100% of its portfolio).
Wells operated
32
Active
8
Plugged
14
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Illinois | 32 |
Well mix
- Oil wells
- 21
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 25%
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Claim Wark Oil to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Wark Oil operate?
Wark Oil's catalogued wells are spread across 1 state: Illinois (32). Its 32 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 Wark Oil’s wells are active, plugged or orphaned?
25% of Wark Oil's catalogued wells are active, 4 percentage points below the national share of 29%. 44% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Wark Oil operate?
By product class, 21 (66%) 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 Lingenfelter 6 in Lawrence, IL at 1,705 ft. The wells listed below sit in Lawrence (IL) and Crawford (IL).
Notable wells operated by Wark Oil
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Lingenfelter 6 | 12-101-07689 | Other status | Other type | Lawrence, IL | Wark Oil Company | 1,705 ft |
| Lingenfelter 7 | 12-101-07690 | Other status | Other type | Lawrence, IL | Wark Oil Company | 1,699 ft |
| Lingenfelter 1 | 12-101-07684 | Other status | Other type | Lawrence, IL | Wark Oil Company | 1,622 ft |
| Lingenfelter 8 | 12-101-07691 | Other status | Other type | Lawrence, IL | Wark Oil Company | 1,612 ft |
| Lingenfelter 2 | 12-101-07685 | Other status | Other type | Lawrence, IL | Wark Oil Company | 1,601 ft |
| Lingenfelter 4 | 12-101-07687 | Other status | Other type | Lawrence, IL | Wark Oil Company | 1,580 ft |
| Dennis, Amanda 3 | 12-033-07288 | Plugged & abandoned | Oil | Crawford, IL | Wark Oil Company | 1,025 ft |
| Dennis, J. W. 1 | 12-033-05226 | Plugged & abandoned | Oil | Crawford, IL | Wark Oil Company | 1,010 ft |
| Dennis, J. W. 3 | 12-033-09438 | Plugged & abandoned | Oil | Crawford, IL | Wark Oil Company | 1,008 ft |
| Dennis, J. W. 12 | 12-033-03124 | Plugged & abandoned | Oil | Crawford, IL | Wark Oil Company | 1,006 ft |
| Dennis, J. W. 6 | 12-033-13465 | Plugged & abandoned | Oil | Crawford, IL | Wark Oil Company | 998 ft |
| Dennis 4 | 12-033-13129 | Active | Oil | Crawford, IL | Wark Oil Company | 964 ft |
Deepest first where depth is published. See all 32 wells →
Frequently asked questions
How many wells does Wark Oil operate?
Wark Oil is the operator of record for 32 catalogued oil & gas wells, with the largest concentration in Illinois (32). Only wells in states WellCensus has ingested are counted.
How many of Wark Oil's wells are still active?
8 of Wark Oil's catalogued wells are active; 14 are plugged & abandoned.
In which states does Wark Oil operate wells?
Wark Oil is the operator of record for wells in Illinois (32).
Does Wark Oil operate mostly oil or gas wells?
21 of Wark Oil's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Wark Oil's deepest well?
Among wells with a published depth, Lingenfelter 6 in Lawrence, IL is the deepest at 1,705 ft.
Where Wark 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, “Wark Oil — well portfolio”, https://wellcensus.com/operators/wark-oil-95760 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).