O'Neal A-1
Status not reported Unknown well
| API number | 12-081-24078 |
|---|---|
| Operator | Downen Production Co. |
| County | Jefferson, Illinois |
| Completed | 1983-10-26 |
| Depth | 3,859 ft |
| Surface location | 38.297890, -88.750051 · 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.