Oil & gas wells in Hamilton County, IL
4,662 catalogued wells in Hamilton County, Illinois, from the state regulator registry and the federal orphaned-well inventory.
Dataset updated . Derived from public data sources.
At a glance
Hamilton County, Illinois has 4,662 catalogued oil & gas wells: 438 active (9%), 3,658 plugged & abandoned (78%) and 366 documented orphans. It ranks 10th of the 98 Illinois counties WellCensus profiles by well count and holds 3% of the state's 174,478 catalogued wells.
Catalogued wells
4,662
Active
438
Plugged
3,658
Documented orphans
366
What is the status of oil and gas wells in Hamilton County?
9% of Hamilton County's wells are active, 10 percentage points below the Illinois share of 19%. 78% are plugged & abandoned, against 61% statewide and 47% nationally. 16 wells (0.3%) are shut-in — unplugged but idle. 366 wells (8%) are documented orphans with no operator able to plug them, compared with 2% across Illinois and 4% nationally. The remaining 184 carry status codes outside those classes, such as permitted or cancelled locations.
What kinds of wells are in Hamilton County?
By product class, 1,986 of the county's wells (43%) are oil wells, 8 (0.2%) gas wells and 817 (18%) injection wells. Statewide the oil share is 40% and the gas share 1%. The deepest total depth published for a Hamilton County well is 13,051 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 Hamilton County compare with other Illinois counties?
Hamilton County has the 10th-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. By documented orphans it ranks 3rd in Illinois.
Who operates wells in Hamilton County?
750 distinct operators of record are linked to wells in Hamilton 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 Hamilton County
🔒 Create a free account to export CSV| Well | API # / state ID | Status | Type | Operator |
|---|---|---|---|---|
| Well API 12-035-03043 | 12-035-03043 | Orphaned | Unknown | — |
| Schultz Cabbage | 12-065-00002 | Other status | Other type | Alco Oil & Gas Corp. |
| Bennett S H 1 | 12-065-00007 | Other status | Other type | Rotrammel T O |
| Pittman, Fred 1 | 12-065-00010 | Plugged & abandoned | Other type | Morrison, C. A. |
| Well API 12-065-00020 | 12-065-00020 | Other status | Other type | Brant, C. E. |
| Clark 1-A | 12-065-00025 | Plugged & abandoned | Other type | Carpenter, A. H., Etal |
| Clark E F 1 | 12-065-00035 | Plugged & abandoned | Other type | Carpenter, A. H., Etal |
| Knapp, Grover 1 | 12-065-00041 | Plugged & abandoned | Other type | Seaboard Oil Co. of Delaware |
| Kiefer Xavier 1 | 12-065-00042 | Plugged & abandoned | Other type | Seaboard Oil Co. of Delaware |
| Rubin, Janet S 1 | 12-065-00043 | Plugged & abandoned | Other type | Mid-Continent Petrol |
| Gardner, R. E. 3 | 12-065-00044 | Plugged & abandoned | Injection | Cherry, Kidd & Sloan |
| Rawls 1 | 12-065-00045 | Plugged & abandoned | Oil | Calvert Drilling, Inc. |
| Echols W C 1 | 12-065-00046 | Plugged & abandoned | Other type | Wiser Oil Co., The |
| Minton, S. (TRACT 11) 1 | 12-065-00047 | Plugged & abandoned | Injection | The Texas Company |
| McDonald, E. 6 | 12-065-00048 | Plugged & abandoned | Oil | Texaco, Inc. |
| Kern J C 1 | 12-065-00049 | Orphaned | Oil | Shell Oil Company |
| Moore, M C 6 | 12-065-00050 | Plugged & abandoned | Other type | Ohio Oil Company |
| Johnson, C. 5 | 12-065-00051 | Orphaned | Injection | Texaco, Inc. |
| Lee John R 3 | 12-065-00052 | Plugged & abandoned | Oil | Perrine & Pearson |
| Hall Minnie F 4 | 12-065-00053 | Plugged & abandoned | Oil | Sinclair Wyoming Oil & Gas |
| Hall Minnie F 5 | 12-065-00054 | Plugged & abandoned | Oil | Sinclair Wyoming Oil & Gas |
| Hall Minnie F 6 | 12-065-00055 | Plugged & abandoned | Oil | Sinclair Wyoming Oil & Gas |
| Hall Minnie F 7 | 12-065-00056 | Plugged & abandoned | Oil | Sinclair Wyoming Oil & Gas |
| Hall Minnie F 8 | 12-065-00057 | Plugged & abandoned | Oil | Sinclair Wyoming Oil & Gas |
| Hall, Minnie F. 9 | 12-065-00058 | Plugged & abandoned | Injection | Sinclair Wyoming Oil Co. |
A sample of the county’s wells — every catalogued well has its own page. Browse all 4,662 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 Hamilton County, IL?
Hamilton County, Illinois has 4,662 catalogued oil & gas wells: 438 active, 3,658 plugged and 366 documented orphans.
How many orphaned wells are in Hamilton County?
366 wells in Hamilton County, Illinois are documented orphans — unplugged with no solvent operator of record, the 3rd-highest count among Illinois counties.
What share of wells in Hamilton County are plugged?
3,658 of Hamilton County's 4,662 catalogued wells (78%) 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); Hamilton County ranks 10th with 4,662.
How many companies operate wells in Hamilton County?
750 distinct operators of record are linked to catalogued wells in Hamilton 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 Hamilton County, Illinois”, https://wellcensus.com/wells/illinois/hamilton (data as of October 10, 2026).