Oil & gas wells in Union County, IL
85 catalogued wells in Union County, Illinois, from the state regulator registry and the federal orphaned-well inventory.
Dataset updated . Derived from public data sources.
At a glance
Union County, Illinois has 85 catalogued oil & gas wells: 4 active (5%), 22 plugged & abandoned (26%) and 0 documented orphans. It ranks 83rd of the 98 Illinois counties WellCensus profiles by well count and holds 0.0% of the state's 174,478 catalogued wells.
Catalogued wells
85
Active
4
Plugged
22
Documented orphans
0
What is the status of oil and gas wells in Union County?
5% of Union County's wells are active, 15 percentage points below the Illinois share of 19%. 26% are plugged & abandoned, against 61% statewide and 47% nationally. No documented orphaned wells are recorded in Union County; Illinois as a whole has 3,986. The remaining 59 carry status codes outside those classes, such as permitted or cancelled locations.
What kinds of wells are in Union County?
By product class, 0 of the county's wells (0%) are oil wells, 1 (1%) gas wells and 3 (4%) injection wells. Statewide the oil share is 40% and the gas share 1%. The deepest total depth published for a Union County well is 8,492 ft, against 29,864 ft for Illinois as a whole. 100% of the county's wells carry coordinates and appear on the map.
How does Union County compare with other Illinois counties?
Union County has the 83rd-most catalogued wells of the 98 Illinois counties with at least 25. The median Illinois county on WellCensus has 525 wells. The largest, Crawford County, has 22,961.
Who operates wells in Union County?
37 distinct operators of record are linked to wells in Union County. 100% of the county's wells carry a link to a canonical operator profile; the rest list no operator or a name not yet resolved. Each well's page names its operator where the state publishes one.
Wells in Union County
🔒 Create a free account to export CSV| Well | API # / state ID | Status | Type | Operator |
|---|---|---|---|---|
| Clyde E. Brewer 1 | 12-181-00002 | Plugged & abandoned | Other type | Skiles Oil Corporation |
| Fly, Madeline 1 | 12-181-00005 | Plugged & abandoned | Other type | Mitchell C A |
| Cast, S. M. | 12-181-00010 | Other status | Other type | Finley D T |
| Cobden Water Supply | 12-181-00011 | Other status | Other type | Haverstick Chas |
| Medlin, A. J. 1 | 12-181-00026 | Plugged & abandoned | Other type | Amiano Oil |
| Anna Cty Well A-2 | 12-181-00033 | Other status | Other type | Sewell Well Co |
| Dillow, Fred 1 | 12-181-00065 | Plugged & abandoned | Other type | Landers Drlg |
| Potashnick, R.B. 1 | 12-181-00073 | Plugged & abandoned | Other type | Mims A S |
| Hill, Katie R. 1 | 12-181-00081 | Plugged & abandoned | Other type | Davis, E. H. |
| Pickel, James F. 1 | 12-181-00106 | Plugged & abandoned | Other type | Humble Oil & Refining Company |
| Dossett 1 | 12-181-00133 | Plugged & abandoned | Other type | Sherman Oil |
| Osman, W. 1 | 12-181-00134 | Plugged & abandoned | Other type | Maloney, Clarence L. |
| Fenix & Scisson, Inc. 3 | 12-181-00205 | Other status | Other type | Fenix & Scisson, Inc. |
| Fenix & Scisson, Inc. 4 | 12-181-00206 | Other status | Other type | Fenix & Scisson, Inc. |
| Fenix & Scisson, Inc. 1 | 12-181-00207 | Other status | Other type | Fenix & Scisson, Inc. |
| Fenix & Scisson, Inc. 2 | 12-181-00208 | Other status | Other type | Fenix & Scisson, Inc. |
| Main Shaft 1 | 12-181-00255 | Active | Injection | Fenix & Scisson, Inc. |
| Auxlry Hole 1 | 12-181-00256 | Active | Injection | Fenix & Scisson, Inc. |
| Auxlry Hole 2 | 12-181-00257 | Active | Injection | Fenix & Scisson, Inc. |
| Collin Boyd | 12-181-20410 | Other status | Other type | Beanland, John R. |
| Chamness, Terri | 12-181-20740 | Other status | Other type | Beanland, John R. |
| Cogeomap Cb-1 | 12-181-20852 | Other status | Other type | IL State Geological Survey |
| Cogeomap Wl-1 | 12-181-20945 | Other status | Other type | IL State Geological Survey |
| Cogeomap Wl-1a | 12-181-20946 | Other status | Other type | IL State Geological Survey |
| Shawnee National Forest 98Il1 | 12-181-21410 | Other status | Other type | U S Dept Agriculture |
A sample of the county’s wells — every catalogued well has its own page. Browse all 85 in search → (filter by operator, status and type, then export), or find a specific well on the live map.
Frequently asked questions
How many oil and gas wells are in Union County, IL?
Union County, Illinois has 85 catalogued oil & gas wells: 4 active, 22 plugged and 0 documented orphans.
How many orphaned wells are in Union County?
No documented orphaned wells are currently recorded in Union County, Illinois.
What share of wells in Union County are plugged?
22 of Union County's 85 catalogued wells (26%) are plugged & abandoned, compared with 61% across Illinois.
Which Illinois county has the most oil and gas wells?
Crawford County has the most catalogued wells of any Illinois county on WellCensus (22,961); Union County ranks 83rd with 85.
How many companies operate wells in Union County?
37 distinct operators of record are linked to catalogued wells in Union County, Illinois.
Nearby in the Illinois rankings
About this data
Source: Illinois State Geological Survey well registry, plus the USGS United States Documented Orphaned Well Database (2026, doi 10.5066/P13FHBYG), as published October 10, 2026 — WellCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: WellCensus, “Oil & gas wells in Union County, Illinois”, https://wellcensus.com/wells/illinois/union (data as of October 10, 2026).