Ostertag 1
Plugged Oil well
| API number | 12-163-01538-0100 |
|---|---|
| Operator | Marlen Enterprises |
| County | St. Clair, Illinois |
| Permitted | 1977-07-25 |
| Completed | 1978-12-05 |
| Depth | 729 ft |
| Surface location | 38.498378, -90.206564 · 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.