Sefton 1
Plugged Dry hole well
| API number | 12-025-26818 |
|---|---|
| Operator | Crest Oil Co., Inc. |
| County | Clay, Illinois |
| Permitted | 1981-12-24 |
| Completed | 1982-01-09 |
| Depth | 3,030 ft |
| Surface location | 38.679327, -88.601121 · 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.