San Juan County has 3,618 wells in the DOGM well file — 462 of them producing today (453 oil, 9 gas), 16 permitted, 0 spudded but not yet completed, and 1,940 plugged and abandoned. The most active operator by well count is Elk Operating Services, LLC. Figures come from the 2026-09-29 DOGM bulk file; production runs through 2026-08.
| Operator | Wells |
|---|---|
| Elk Operating Services, LLC | 832 |
| Wesgra Corporation | 191 |
| Harken Southwest Corp | 121 |
| Superior Oil Company | 97 |
| Mobil Explor & Prod | 87 |
| Us Oil & Gas INC | 80 |
| Texaco INC | 77 |
| American Helium Operating, LLC | 64 |
| Nnogc Exploration & Production, LLC | 63 |
| Orphan-No Responsible Operator | 52 |
| Field | Wells |
|---|---|
| Greater Aneth | 1,272 |
| Wildcat | 880 |
| Mexican Hat | 348 |
| Undesignated | 288 |
| Ismay | 61 |
| Lisbon | 60 |
| Boundary Butte | 55 |
| Tohonadla | 52 |