Rio Arriba County has 12,861 wells in the OCD well file — 8,310 of them producing today (785 oil, 7,525 gas), 128 permitted, 28 spudded but not yet completed, and 3,101 plugged and abandoned. The most active operator by well count is Hilcorp Energy Company. Figures come from the 2026-09-29 OCD bulk file; production runs through 2026-08.
| Operator | Wells |
|---|---|
| Hilcorp Energy Company | 4,776 |
| Pre-Ongard Well Operator | 1,578 |
| Logos Operating, LLC | 992 |
| Burlington Resources Oil & Gas Company LP | 532 |
| Enduring Resources, LLC | 527 |
| Morningstar Operating LLC | 491 |
| High River Resources Operating, LLC | 371 |
| Conocophillips Company | 328 |
| Djr Operating, LLC | 271 |
| Black Hills Gas Resources, INC. | 255 |
| Field | Wells |
|---|---|
| Blanco-Mesaverde (Prorated Gas) | 2,577 |
| Basin Dakota (Prorated Gas) | 2,495 |
| Blanco P. C. South (Prorated Gas) | 1,440 |
| Basin Fruitland Coal (Gas) | 1,374 |
| Ballard Pictured Cliffs (Gas) | 493 |
| Lindrith Gallup-Dakota,west | 487 |
| Tapacito Pictured Cliffs (Pro Gas) | 337 |
| Basin Mancos | 253 |