Knolhoff, H.W. 1
Status not reported Oil well
| API number | 12-027-00651 |
|---|---|
| Operator | D. O. Ross Drilling Company |
| County | Clinton, Illinois |
| Completed | 1940-01-01 |
| Depth | 1,336 ft |
| Surface location | 38.544170, -89.291103 · 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.