Grand County has 2,325 wells in the DOGM well file — 213 of them producing today (30 oil, 183 gas), 10 permitted, 0 spudded but not yet completed, and 1,280 plugged and abandoned. The most active operator by well count is Star Oil Operating Company, LLC. Figures come from the 2026-09-29 DOGM bulk file; production runs through 2026-08.
| Operator | Wells |
|---|---|
| Star Oil Operating Company, LLC | 136 |
| Arb Energy Utah, LLC | 124 |
| Orphan-No Responsible Operator | 84 |
| Running Foxes Petroleum, INC | 82 |
| Broadhead, Walter | 65 |
| Utah Gas Op Ltd | 60 |
| Wesco Operating, INC | 57 |
| Ambra Oil & Gas Company | 46 |
| Anschutz Corporation, The | 45 |
| National Fuel Corporation | 42 |
| Field | Wells |
|---|---|
| Greater Cisco | 1,169 |
| Wildcat | 389 |
| San Arroyo | 170 |
| Undesignated | 137 |
| Big Flat | 67 |
| Bryson Canyon | 61 |
| Bar X | 60 |
| Westwater | 46 |
1 wells went to a rig in Grand County in the last twelve months per DOGM; 1 in the last 45 days. The statewide list is on the drilling activity page.