Duff Heirs 3-A
Plugged Oil well
| API number | 12-025-04530 |
|---|---|
| Operator | Joe Simpkins Oil Developments |
| County | Clay, Illinois |
| Permitted | 1967-11-30 |
| Completed | 1968-04-15 |
| Depth | 3,125 ft |
| Surface location | 38.676134, -88.373590 · 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.