Oslager John J
Operator of record for 36 catalogued wells across 2 states. Every well below links to its full registry page.
Filed as: OSLAGER, JOHN J · Oslager, John J.
At a glance
Oslager John J is the operator of record for 36 catalogued U.S. oil & gas wells in 2 states. 2 (6%) are active, 23 (64%) plugged & abandoned and 11 flagged as orphaned. Its largest concentration is in Illinois, with 35 wells (97% of its portfolio).
Wells operated
36
Active
2
Plugged
23
Orphaned
11
Portfolio by state
| State | Wells |
|---|---|
| Illinois | 35 |
| Kentucky | 1 |
Well mix
- Oil wells
- 25
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 6%
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Claim your operator profileWhere does Oslager John J operate?
Oslager John J's catalogued wells are spread across 2 states: Illinois (35) and Kentucky (1). Its 35 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 Oslager John J’s wells are active, plugged or orphaned?
6% of Oslager John J's catalogued wells are active, 23 percentage points below the national share of 29%. 64% are plugged & abandoned, against 47% nationally. 11 wells filed under this name are flagged as orphaned — unplugged, with no operator able to plug them.
What kinds of wells does Oslager John J operate?
By product class, 25 (69%) 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 Hunley 1 in Wayne, IL at 3,537 ft. The wells listed below sit in Wayne (IL), Edwards (IL), White (IL) and Hamilton (IL). State filings spell the name 2 ways; WellCensus merges exact-normalized spellings only, so subsidiaries and affiliates keep their own pages.
Notable wells operated by Oslager John J
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Hunley 1 | 12-191-03805 | Plugged & abandoned | Oil | Wayne, IL | Oslager, John J. | 3,537 ft |
| Hunley & Taylor 1 | 12-191-03806 | Plugged & abandoned | Injection | Wayne, IL | Oslager, John J. | 3,523 ft |
| Adams, Belangee etal 1 | 12-191-03803 | Plugged & abandoned | Oil | Wayne, IL | Oslager, John J. | 3,470 ft |
| Bowers Chester 1-A | 12-047-00709 | Plugged & abandoned | Other type | Edwards, IL | Oslager, John J. | 3,420 ft |
| P Potter 1 | 12-047-00703 | Plugged & abandoned | Oil | Edwards, IL | Oslager, John J. | 3,384 ft |
| Hunley 2 | 12-191-03804 | Plugged & abandoned | Oil | Wayne, IL | Oslager, John J. | 3,374 ft |
| Floyd-Clark-Bowers 1 | 12-047-00768 | Plugged & abandoned | Oil | Edwards, IL | Oslager, John J. | 3,371 ft |
| Reed 1 | 12-193-02915 | Plugged & abandoned | Oil | White, IL | Oslager, John J. | 3,368 ft |
| Hunt 2 | 12-065-02322 | Orphaned | Oil | Hamilton, IL | Oslager, John J. | 3,356 ft |
| Harrelson, Nova 2-A | 12-065-01443 | Orphaned | Oil | Hamilton, IL | Oslager, John J. | 3,335 ft |
| Foster 1 | 12-065-03269 | Orphaned | Oil | Hamilton, IL | Oslager, John J. | 3,332 ft |
| Reeves 1 | 12-065-03255 | Plugged & abandoned | Oil | Hamilton, IL | Oslager, John J. | 3,273 ft |
Deepest first where depth is published. See all 36 wells →
Frequently asked questions
How many wells does Oslager John J operate?
Oslager John J is the operator of record for 36 catalogued oil & gas wells, with the largest concentration in Illinois (35). Only wells in states WellCensus has ingested are counted.
How many of Oslager John J's wells are still active?
2 of Oslager John J's catalogued wells are active; 23 are plugged & abandoned and 11 are flagged as orphaned.
In which states does Oslager John J operate wells?
Oslager John J is the operator of record for wells in Illinois (35) and Kentucky (1).
Does Oslager John J operate mostly oil or gas wells?
25 of Oslager John J's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Oslager John J's deepest well?
Among wells with a published depth, Hunley 1 in Wayne, IL is the deepest at 3,537 ft.
Where Oslager John J'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, “Oslager John J — well portfolio”, https://wellcensus.com/operators/oslager-john-j-66699 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).