Chouteau County has 786 wells in the MBOGC well file — 98 of them producing today (0 oil, 98 gas), 0 permitted, 0 spudded but not yet completed, and 656 plugged and abandoned. The most active operator by well count is Northwestern Corporation. Figures come from the 2026-09-29 MBOGC bulk file; production runs through 2026-08.
| Operator | Wells |
|---|---|
| Northwestern Corporation | 127 |
| Montana Power Company | 70 |
| Sohio Petroleum Company | 53 |
| Elenburg Exploration, INC. | 34 |
| Brown, J. Burns Operating Company | 31 |
| Bond, Roland, Etal. | 23 |
| Conoco INC. | 21 |
| Klabzuba Oil & Gas, INC. | 19 |
| Fuel Resources Development Co | 18 |
| El Paso Production Oil & Gas Company | 16 |
| Field | Wells |
|---|---|
| Bullwacker | 95 |
| Sherard, Area | 35 |
| Wildcat Chouteau | 29 |
| Little Creek | 17 |
| Hardpan | 14 |
| Sherard | 11 |
| Buffalo Flat | 9 |
| Coal Mine Coulee | 7 |