Il Oil Dev
Operator of record for 37 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Il Oil Dev is the operator of record for 37 catalogued U.S. oil & gas wells in 1 state. 8 (22%) are active, 28 (76%) plugged & abandoned. Its largest concentration is in Illinois, with 37 wells (100% of its portfolio).
Wells operated
37
Active
8
Plugged
28
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Illinois | 37 |
Well mix
- Oil wells
- 17
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 22%
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Claim Il Oil Dev to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Il Oil Dev operate?
Il Oil Dev's catalogued wells are spread across 1 state: Illinois (37). Its 37 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 Il Oil Dev’s wells are active, plugged or orphaned?
22% of Il Oil Dev's catalogued wells are active, 7 percentage points below the national share of 29%. 76% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Il Oil Dev operate?
By product class, 17 (46%) 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 Putnam S R 4 in Lawrence, IL at 2,010 ft. The wells listed below sit in Lawrence (IL) and Marion (IL).
Notable wells operated by Il Oil Dev
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Putnam S R 4 | 12-101-03301 | Active | Oil | Lawrence, IL | IL Oil Dev. Co. | 2,010 ft |
| Allison Etal 1 | 12-101-07093 | Plugged & abandoned | Oil | Lawrence, IL | IL Oil Dev. Co. | 1,919 ft |
| Buchanan L A 0-1 | 12-101-01380 | Active | Oil | Lawrence, IL | IL Oil Dev. Co. | 1,911 ft |
| Douglas, Stanley 0-3 | 12-101-02908 | Plugged & abandoned | Other type | Lawrence, IL | IL Oil Dev. Co. | 1,910 ft |
| Leighty, O. 13-0 | 12-101-02748 | Other status | Oil | Lawrence, IL | IL Oil Dev. Co. | 1,895 ft |
| Vandermark E K 0-1 | 12-101-05239 | Plugged & abandoned | Oil | Lawrence, IL | IL Oil Dev. Co. | 1,884 ft |
| Leighty, Oscar 15-0 | 12-101-02626 | Plugged & abandoned | Other type | Lawrence, IL | IL Oil Dev. Co. | 1,867 ft |
| Potts 5 | 12-101-00839 | Plugged & abandoned | Oil | Lawrence, IL | IL Oil Dev. Co. | 1,855 ft |
| Lyons 6 | 12-101-00801 | Plugged & abandoned | Oil | Lawrence, IL | IL Oil Dev. Co. | 1,852 ft |
| Frazier 1 | 12-121-00882 | Plugged & abandoned | Other type | Marion, IL | IL Oil Dev. Co. | 1,845 ft |
| Buchanan J W 0-3 | 12-101-01509 | Plugged & abandoned | Other type | Lawrence, IL | IL Oil Dev. Co. | 1,825 ft |
| Spidel 0-5 | 12-101-01376 | Plugged & abandoned | Oil | Lawrence, IL | IL Oil Dev. Co. | 1,812 ft |
Deepest first where depth is published. See all 37 wells →
Frequently asked questions
How many wells does Il Oil Dev operate?
Il Oil Dev is the operator of record for 37 catalogued oil & gas wells, with the largest concentration in Illinois (37). Only wells in states WellCensus has ingested are counted.
How many of Il Oil Dev's wells are still active?
8 of Il Oil Dev's catalogued wells are active; 28 are plugged & abandoned.
In which states does Il Oil Dev operate wells?
Il Oil Dev is the operator of record for wells in Illinois (37).
Does Il Oil Dev operate mostly oil or gas wells?
17 of Il Oil Dev's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Il Oil Dev's deepest well?
Among wells with a published depth, Putnam S R 4 in Lawrence, IL is the deepest at 2,010 ft.
Where Il Oil Dev'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, “Il Oil Dev — well portfolio”, https://wellcensus.com/operators/il-oil-dev-66831 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).