Leffner 1
Status not reported Oil well
| API number | 12-081-23870-0100 |
|---|---|
| Operator | Greater Mid-West Oil Co., Inc. |
| County | Jefferson, Illinois |
| Completed | 1984-05-15 |
| Depth | 3,546 ft |
| Surface location | 38.222353, -88.968827 · wells within 1 mile |
| State record | Illinois State Geological Survey ↗ |
| Data as of | 2026-10-17 |
From Illinois State Geological Survey public records. Verify with the state before relying on this information.