Union County has 536 wells in the OCD well file — 0 of them producing today (0 oil, 0 gas), 0 permitted, 0 spudded but not yet completed, and 146 plugged and abandoned. The most active operator by well count is Oxy Usa INC. Figures come from the 2026-09-29 OCD bulk file; production runs through 2026-08.
| Operator | Wells |
|---|---|
| Oxy Usa INC | 413 |
| Pre-Ongard Well Operator | 77 |
| Bp America Production Company | 42 |
| Kodiak Petroleum (Montana), INC. | 4 |
| Field | Wells |
|---|---|
| Bravo Dome Carbon Dioxide Gas 640 | 430 |
| Dry & Abandoned | 3 |
| Swd | 3 |
| Wildcat | 2 |