Oil & gas wells in Cook County, IL
525 catalogued wells in Cook County, Illinois, from the state regulator registry and the federal orphaned-well inventory.
Dataset updated . Derived from public data sources.
At a glance
Cook County, Illinois has 525 catalogued oil & gas wells: 0 active (0%), 1 plugged & abandoned (0.2%) and 0 documented orphans. It ranks 50th of the 98 Illinois counties WellCensus profiles by well count and holds 0.3% of the state's 174,478 catalogued wells.
Catalogued wells
525
Active
0
Plugged
1
Documented orphans
0
What is the status of oil and gas wells in Cook County?
0% of Cook County's wells are active, 19 percentage points below the Illinois share of 19%. 0.2% are plugged & abandoned, against 61% statewide and 47% nationally. No documented orphaned wells are recorded in Cook County; Illinois as a whole has 3,986. The remaining 524 carry status codes outside those classes, such as permitted or cancelled locations.
What kinds of wells are in Cook County?
By product class, 0 of the county's wells (0%) are oil wells, 0 (0%) gas wells and 0 (0%) injection wells. Statewide the oil share is 40% and the gas share 1%. The deepest total depth published for a Cook County well is 2,050 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 Cook County compare with other Illinois counties?
Cook County has the 50th-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 Cook County?
47 distinct operators of record are linked to wells in Cook County. 59% 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 Cook County
🔒 Create a free account to export CSV| Well | API # / state ID | Status | Type | Operator |
|---|---|---|---|---|
| Lex-Paul Corporation 1 | 12-031-00123 | Other status | Other type | — |
| Ford 2 | 12-031-00153 | Other status | Other type | Geiger, S. B. |
| Glenview Country Club TH-1 | 12-031-00213 | Other status | Other type | Miller, J. P. Art. Well |
| Glenview Country Clu TH-2 | 12-031-00214 | Other status | Other type | Miller, J. P. Art. Well |
| Glenview Country Clu TH-3 | 12-031-00215 | Other status | Other type | Miller, J. P. Art. Well |
| Sisters Holy Family Of Nazareth 1 | 12-031-00293 | Other status | Other type | Schneller, M.P. & Assoc. |
| Northern Illinois Gas Co. 147-1 | 12-031-00294 | Other status | Other type | Northern Illinois Gas Co. |
| Northeastern Ill Metro Plan 23 | 12-031-00366 | Other status | Other type | Layne Western Co., Inc. |
| Northeastern Ill Metro Comm 19 | 12-031-00367 | Other status | Other type | Layne Western Co., Inc. |
| Northern Illinois Gas Co. 147-2 | 12-031-00389 | Other status | Other type | Northern Illinois Gas Co. |
| Northern Illinois Gas Co. 147-3 | 12-031-00392 | Other status | Other type | Northern Illinois Gas Co. |
| Northern Illinois Gas Co. 147-4 | 12-031-00393 | Other status | Other type | Northern Illinois Gas Co. |
| Northern Illinois Gas Co. 147-5 | 12-031-00395 | Other status | Other type | Northern Illinois Gas Co. |
| Northern Illinois Gas Co. 147-6 | 12-031-00396 | Other status | Other type | Northern Illinois Gas Co. |
| Northern Illinois Gas Co. 147-7 | 12-031-00397 | Other status | Other type | Northern Illinois Gas Co. |
| Northern Illinois Gas Co. 147-8 | 12-031-00398 | Other status | Other type | Northern Illinois Gas Co. |
| Northern Illinois Gas Co. 9 | 12-031-00399 | Other status | Other type | Northern Illinois Gas Co. |
| Northern Illinois Gas Co. 147-10 | 12-031-00400 | Other status | Other type | Northern Illinois Gas Co. |
| Northern Illinois Gas Co. 147-11 | 12-031-00401 | Other status | Other type | Northern Illinois Gas Co. |
| Northern Illinois Gas Co. 12 | 12-031-00402 | Other status | Other type | Northern Illinois Gas Co. |
| Northern Illinois Gas Co. 147-13 | 12-031-00403 | Other status | Other type | Northern Illinois Gas Co. |
| Northern Illinois Gas Co. 147-14 | 12-031-00404 | Other status | Other type | Northern Illinois Gas Co. |
| St. Vincent DePaul Seminary 1 | 12-031-00451 | Other status | Other type | Milaeger Well Drlg. |
| MSD Chicago-Deep Tunnel Sys SW-4 | 12-031-00765 | Other status | Other type | Layne-Western Co. |
| MSD Chicago-Deep Tunnel Sys SW-2 | 12-031-00901 | Other status | Other type | Layne-Western Co. |
A sample of the county’s wells — every catalogued well has its own page. Browse all 525 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 Cook County, IL?
Cook County, Illinois has 525 catalogued oil & gas wells: 0 active, 1 plugged and 0 documented orphans.
How many orphaned wells are in Cook County?
No documented orphaned wells are currently recorded in Cook County, Illinois.
What share of wells in Cook County are plugged?
1 of Cook County's 525 catalogued wells (0.2%) 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); Cook County ranks 50th with 525.
How many companies operate wells in Cook County?
47 distinct operators of record are linked to catalogued wells in Cook 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 Cook County, Illinois”, https://wellcensus.com/wells/illinois/cook (data as of October 10, 2026).