Custer County has 3 wells in the ECMC well file — 0 of them producing today (0 oil, 0 gas), 0 permitted, 0 spudded but not yet completed, and 3 plugged and abandoned. The most active operator by well count is Unknown. Figures come from the 2026-09-29 ECMC bulk file; production runs through 2026-08.
| Operator | Wells |
|---|---|
| Unknown | 2 |
| Able Oil & Gas Co INC | 1 |
| Field | Wells |
|---|---|
| Wildcat | 3 |