Pfeffer Unit 4
Status not reported Oil well
| API number | 12-121-05127-0100 |
|---|---|
| Operator | Pfeffer, William J. |
| County | Marion, Illinois |
| Permitted | 1968-11-07 |
| Completed | 1968-11-12 |
| Depth | 897 ft |
| Surface location | 38.543520, -89.118004 · 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.