Knolhoff, H. 7
Status not reported Oil well
| API number | 12-027-02392 |
|---|---|
| Operator | Duncan, Dick |
| County | Clinton, Illinois |
| Permitted | 1940-09-04 |
| Completed | 1940-08-01 |
| Depth | 1,326 ft |
| Surface location | 38.548787, -89.288667 · 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.