Yellowstone County has 448 wells in the MBOGC well file — 24 of them producing today (24 oil, 0 gas), 0 permitted, 0 spudded but not yet completed, and 384 plugged and abandoned. The most active operator by well count is Clay's Consulting, LLC. Figures come from the 2026-09-29 MBOGC bulk file; production runs through 2026-08.
| Operator | Wells |
|---|---|
| Clay's Consulting, LLC | 45 |
| Calburn Energy Corporation | 24 |
| Equitable Resources Energy Co, Western Region | 15 |
| Carter Oil Co. | 14 |
| Basso, Westwood, Lindberg, Wolf | 13 |
| Big Snowy Resources LP | 11 |
| Beartooth Oil & Gas Company | 10 |
| Integrity Oil & Gas Company | 10 |
| Hodges, A.j. Industries, INC. | 8 |
| R & J Production, INC. | 8 |
| Field | Wells |
|---|---|
| Mosser Dome | 44 |
| Wolf Springs | 27 |
| Laurel | 25 |
| Wildcat Yellowstone, N | 24 |
| Wolf Springs, South | 11 |
| Weed Creek | 6 |
| Crooked Creek | 3 |
| Wildcat Yellowstone, S | 1 |