Oil & gas wells in Winnebago County, IL
176 catalogued wells in Winnebago County, Illinois, from the state regulator registry and the federal orphaned-well inventory.
Dataset updated . Derived from public data sources.
At a glance
Winnebago County, Illinois has 176 catalogued oil & gas wells: 14 active (8%), 2 plugged & abandoned (1%) and 0 documented orphans. It ranks 71st of the 98 Illinois counties WellCensus profiles by well count and holds 0.1% of the state's 174,478 catalogued wells.
Catalogued wells
176
Active
14
Plugged
2
Documented orphans
0
What is the status of oil and gas wells in Winnebago County?
8% of Winnebago County's wells are active, 12 percentage points below the Illinois share of 19%. 1% are plugged & abandoned, against 61% statewide and 47% nationally. No documented orphaned wells are recorded in Winnebago County; Illinois as a whole has 3,986. The remaining 160 carry status codes outside those classes, such as permitted or cancelled locations.
What kinds of wells are in Winnebago County?
By product class, 0 of the county's wells (0%) are oil wells, 0 (0%) gas wells and 14 (8%) injection wells. Statewide the oil share is 40% and the gas share 1%. The deepest total depth published for a Winnebago County well is 3,150 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 Winnebago County compare with other Illinois counties?
Winnebago County has the 71st-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 Winnebago County?
26 distinct operators of record are linked to wells in Winnebago County. 99% 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 Winnebago County
🔒 Create a free account to export CSV| Well | API # / state ID | Status | Type | Operator |
|---|---|---|---|---|
| First Baptist Church | 12-201-00004 | Other status | Other type | Layne Western Co., Inc. |
| Redline B T | 12-201-00006 | Other status | Other type | McMann, Allan |
| Winnebago School | 12-201-00014 | Other status | Other type | Millis P E |
| Newberg Carl | 12-201-00022 | Other status | Other type | McMann, Allan |
| Anderson C | 12-201-00023 | Other status | Other type | McMan, Allan |
| Scott Charlie | 12-201-00025 | Other status | Other type | McMann, Allan |
| Swenson | 12-201-00041 | Other status | Other type | Peterson |
| Arnold Mrs | 12-201-00077 | Other status | Other type | Millis P E |
| Barrett E A | 12-201-00078 | Other status | Other type | Millis P E |
| McGregor Filling Sta | 12-201-00079 | Other status | Other type | Millis P E |
| Koch A I | 12-201-00134 | Other status | Other type | Dougherty B J |
| Hall Roy | 12-201-00136 | Other status | Other type | Dougherty Bros |
| Reubsamen Robt | 12-201-00243 | Other status | Other type | Dougherty |
| Allen Ice Cream | 12-201-00247 | Other status | Other type | Alco Oil & Gas Corp. |
| Rockford Well 1C | 12-201-00252 | Other status | Other type | Alco Oil & Gas Corp. |
| Rockford City Well 2C | 12-201-00253 | Other status | Other type | Alco Oil & Gas Corp. |
| Rockford City Well 3C | 12-201-00254 | Other status | Other type | Alco Oil & Gas Corp. |
| Rockford City Well 4C | 12-201-00255 | Other status | Other type | Alco Oil & Gas Corp. |
| Roxo Ice Cream | 12-201-00259 | Other status | Other type | Alco Oil & Gas Corp. |
| Rockford Well 4-B | 12-201-00261 | Other status | Other type | Alco Oil & Gas Corp. |
| Rockford City Well | 12-201-00263 | Other status | Other type | Varner Well Drilling |
| Rockford Paper Box C | 12-201-00274 | Other status | Other type | Little W B |
| Rockford Fiber Cont | 12-201-00276 | Other status | Other type | Null Bruce |
| Home Laundry Co | 12-201-00306 | Other status | Other type | Varner C W |
| Mattison Steel | 12-201-00308 | Other status | Other type | Alco Oil & Gas Corp. |
A sample of the county’s wells — every catalogued well has its own page. Browse all 176 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 Winnebago County, IL?
Winnebago County, Illinois has 176 catalogued oil & gas wells: 14 active, 2 plugged and 0 documented orphans.
How many orphaned wells are in Winnebago County?
No documented orphaned wells are currently recorded in Winnebago County, Illinois.
What share of wells in Winnebago County are plugged?
2 of Winnebago County's 176 catalogued wells (1%) 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); Winnebago County ranks 71st with 176.
How many companies operate wells in Winnebago County?
26 distinct operators of record are linked to catalogued wells in Winnebago 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 Winnebago County, Illinois”, https://wellcensus.com/wells/illinois/winnebago (data as of October 10, 2026).