Oil & gas wells in Lasalle County, IL
833 catalogued wells in Lasalle County, Illinois, from the state regulator registry and the federal orphaned-well inventory.
Dataset updated . Derived from public data sources.
At a glance
Lasalle County, Illinois has 833 catalogued oil & gas wells: 139 active (17%), 93 plugged & abandoned (11%) and 2 documented orphans. It ranks 38th of the 98 Illinois counties WellCensus profiles by well count and holds 0.5% of the state's 174,478 catalogued wells.
Catalogued wells
833
Active
139
Plugged
93
Documented orphans
2
What is the status of oil and gas wells in Lasalle County?
17% of Lasalle County's wells are active, 3 percentage points below the Illinois share of 19%. 11% are plugged & abandoned, against 61% statewide and 47% nationally. 1 wells (0.1%) are shut-in — unplugged but idle. 2 wells (0.2%) are documented orphans with no operator able to plug them, compared with 2% across Illinois and 4% nationally. The remaining 598 carry status codes outside those classes, such as permitted or cancelled locations.
What kinds of wells are in Lasalle County?
By product class, 1 of the county's wells (0.1%) are oil wells, 4 (0.5%) gas wells and 135 (16%) injection wells. Statewide the oil share is 40% and the gas share 1%. The deepest total depth published for a Lasalle County well is 5,800 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 Lasalle County compare with other Illinois counties?
Lasalle County has the 38th-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 45th in Illinois.
Who operates wells in Lasalle County?
60 distinct operators of record are linked to wells in Lasalle County. 94% 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 Lasalle County
🔒 Create a free account to export CSV| Well | API # / state ID | Status | Type | Operator |
|---|---|---|---|---|
| Marseilles Dam 5 | 12-099-00012 | Other status | Other type | U S War Department L |
| Clegg Howard | 12-099-00026 | Active | Gas | Bolliger, John & Sons |
| Peru Beer Co 8 | 12-099-00040 | Other status | Other type | Peru Beer Co |
| South Farm Well | 12-099-00047 | Other status | Other type | Deer Park |
| 9 | 12-099-00101 | Other status | Other type | LaSalle Cnty. Carb-Coal |
| Dzincioel | 12-099-00102 | Plugged & abandoned | Other type | Alco Oil & Gas Corp. |
| Ill Zinc Co Well | 12-099-00105 | Other status | Other type | IL Zinc Co. |
| Strawn G B | 12-099-00119 | Other status | Other type | Schomas J C Co |
| Entis 2 | 12-099-00123 | Other status | Other type | Truax Traer Coal Co. |
| Watts W A | 12-099-00126 | Other status | Other type | Alco Oil & Gas Corp. |
| U S Engineers 2 | 12-099-00152 | Other status | Other type | Cater William |
| Well API 12-099-00157 | 12-099-00157 | Other status | Other type | St. Paul & Bracville |
| 10 | 12-099-00165 | Other status | Other type | Breit, Fred D. |
| Well API 12-099-00182 | 12-099-00182 | Other status | Other type | — |
| Well API 12-099-00189 | 12-099-00189 | Other status | Other type | — |
| Well API 12-099-00192 | 12-099-00192 | Other status | Other type | — |
| Well API 12-099-00193 | 12-099-00193 | Other status | Other type | — |
| Well API 12-099-00194 | 12-099-00194 | Other status | Other type | — |
| Well API 12-099-00195 | 12-099-00195 | Other status | Other type | — |
| Well API 12-099-00196 | 12-099-00196 | Other status | Other type | — |
| Well API 12-099-00197 | 12-099-00197 | Other status | Other type | — |
| Well API 12-099-00198 | 12-099-00198 | Other status | Other type | — |
| Well API 12-099-00199 | 12-099-00199 | Other status | Other type | — |
| Well API 12-099-00200 | 12-099-00200 | Other status | Other type | — |
| Well API 12-099-00202 | 12-099-00202 | Other status | Other type | — |
A sample of the county’s wells — every catalogued well has its own page. Browse all 833 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 Lasalle County, IL?
Lasalle County, Illinois has 833 catalogued oil & gas wells: 139 active, 93 plugged and 2 documented orphans.
How many orphaned wells are in Lasalle County?
2 wells in Lasalle County, Illinois are documented orphans — unplugged with no solvent operator of record, the 45th-highest count among Illinois counties.
What share of wells in Lasalle County are plugged?
93 of Lasalle County's 833 catalogued wells (11%) 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); Lasalle County ranks 38th with 833.
How many companies operate wells in Lasalle County?
60 distinct operators of record are linked to catalogued wells in Lasalle 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 Lasalle County, Illinois”, https://wellcensus.com/wells/illinois/lasalle (data as of October 10, 2026).