Mckinley County has 1,499 wells in the OCD well file — 107 of them producing today (101 oil, 6 gas), 5 permitted, 4 spudded but not yet completed, and 1,124 plugged and abandoned. The most active operator by well count is Pre-Ongard Well Operator. Figures come from the 2026-09-29 OCD bulk file; production runs through 2026-08.
| Operator | Wells |
|---|---|
| Pre-Ongard Well Operator | 966 |
| Dominion Production Company, LLC | 173 |
| Robert L Bayless | 57 |
| Enerdyne, LLC | 43 |
| Geo Engineering INC | 36 |
| Bc & D Operating INC. | 35 |
| Mountain States Petroleum Corp | 25 |
| Sg Interests I Ltd | 24 |
| Merrion Oil & Gas Corp | 15 |
| Nerdlihc Co INC | 13 |
| Field | Wells |
|---|---|
| Wc D3 | 426 |
| Hospah Lower Sand, South | 104 |
| Chaco Wash Mesaverde | 95 |
| Hospah Upper Sand | 92 |
| Hospah Upper Sand, South | 67 |
| Miguel Creek Gallup | 63 |
| Red Mountain Mesa Verde | 55 |
| Arena Blanca Entrada, Southeast | 55 |