Cowan Jl
Operator of record for 15 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Cowan Jl is the operator of record for 15 catalogued U.S. oil & gas wells in 1 state. 2 (13%) are active, 12 (80%) plugged & abandoned. Its largest concentration is in Illinois, with 15 wells (100% of its portfolio).
Wells operated
15
Active
2
Plugged
12
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Illinois | 15 |
Well mix
- Oil wells
- 7
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 13%
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Claim Cowan Jl to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Cowan Jl operate?
Cowan Jl's catalogued wells are spread across 1 state: Illinois (15). Its 15 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 Cowan Jl’s wells are active, plugged or orphaned?
13% of Cowan Jl's catalogued wells are active, 16 percentage points below the national share of 29%. 80% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Cowan Jl operate?
By product class, 7 (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 Lowe 1-A in Wayne, IL at 3,178 ft. The wells listed below sit in Wayne (IL), Clay (IL), Cumberland (IL) and Clark (IL).
Notable wells operated by Cowan Jl
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Lowe 1-A | 12-191-05723 | Plugged & abandoned | Other type | Wayne, IL | Cowan, J. L. | 3,178 ft |
| Hollman 1 | 12-025-01087 | Plugged & abandoned | Oil | Clay, IL | Cowan, J. L. | 2,960 ft |
| Gill 1 | 12-025-01107 | Plugged & abandoned | Oil | Clay, IL | Cowan, J. L. | 2,915 ft |
| Hollman - Gill Comm. 1 | 12-025-01113 | Plugged & abandoned | Oil | Clay, IL | Cowan, J. L. | 2,907 ft |
| McLain 1 | 12-035-00032 | Plugged & abandoned | Other type | Cumberland, IL | Cowan, J. L. | 2,530 ft |
| Tolch, C. F. 1 | 12-035-00091 | Plugged & abandoned | Other type | Cumberland, IL | Cowan, J. L. | 2,500 ft |
| Shaw, Vera 1 | 12-023-03091 | Plugged & abandoned | Other type | Clark, IL | Cowan, J. L. | 1,038 ft |
| Shaw 3 | 12-023-03169 | Plugged & abandoned | Injection | Clark, IL | Cowan, J. L. | 365 ft |
| Shaw 2 | 12-023-03147 | Other status | Oil | Clark, IL | Cowan, J. L. | 355 ft |
| Shaw 10 | 12-023-00569 | Active | Oil | Clark, IL | Cowan, J. L. | 355 ft |
| Shaw WI-2 | 12-023-03254 | Plugged & abandoned | Injection | Clark, IL | Cowan, J. L. | 353 ft |
| Shaw 4 | 12-023-03251 | Plugged & abandoned | Oil | Clark, IL | Cowan, J. L. | 353 ft |
Deepest first where depth is published. See all 15 wells →
Frequently asked questions
How many wells does Cowan Jl operate?
Cowan Jl is the operator of record for 15 catalogued oil & gas wells, with the largest concentration in Illinois (15). Only wells in states WellCensus has ingested are counted.
How many of Cowan Jl's wells are still active?
2 of Cowan Jl's catalogued wells are active; 12 are plugged & abandoned.
In which states does Cowan Jl operate wells?
Cowan Jl is the operator of record for wells in Illinois (15).
Does Cowan Jl operate mostly oil or gas wells?
7 of Cowan Jl's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Cowan Jl's deepest well?
Among wells with a published depth, Lowe 1-A in Wayne, IL is the deepest at 3,178 ft.
Where Cowan Jl'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, “Cowan Jl — well portfolio”, https://wellcensus.com/operators/cowan-jl-66116 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).