Heyer, Minnie(Core Hole 21) 1
Plugged Other well
| API number | 12-117-01312 |
|---|---|
| Operator | Sun Production Co (Sun Oil) |
| County | Macoupin, Illinois |
| Completed | 1947-07-22 |
| Depth | 764 ft |
| Surface location | 39.190071, -89.738467 · 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.