| Rank | County | Production Period | Oil Production |
|---|---|---|---|
| #6 | Blaine County, MT | Jan 2026 | 18.1k BBLs |
| #7 | Fallon County, MT | Jan 2026 | 17.8k BBLs |
| #8 | Glacier County, MT | Jan 2026 | 16.8k BBLs |
| #9 | Toole County, MT | Jan 2026 | 8.6k BBLs |
| #10 | Valley County, MT | Jan 2026 | 4.2k BBLs |
| #11 | Big Horn County, MT | Jan 2026 | 3.2k BBLs |
| #12 | Rosebud County, MT | Jan 2026 | 2.7k BBLs |
| #13 | Musselshell County, MT | Jan 2026 | 2.0k BBLs |
| #14 | Pondera County, MT | Jan 2026 | 1.8k BBLs |
| #15 | Petroleum County, MT | Jan 2026 | 1.5k BBLs |
| #16 | Dawson County, MT | Jan 2026 | 1.3k BBLs |
| #17 | Teton County, MT | Jan 2026 | 1.2k BBLs |
| Rank | County | Production Period | Gas Production |
|---|---|---|---|
| #6 | Hill County, MT | Jan 2026 | 148k MCF |
| #7 | Toole County, MT | Jan 2026 | 94k MCF |
| #8 | Carbon County, MT | Jan 2026 | 92.7k MCF |
| #9 | Glacier County, MT | Jan 2026 | 73.3k MCF |
| #10 | Valley County, MT | Jan 2026 | 39.9k MCF |
| #11 | Chouteau County, MT | Jan 2026 | 33.5k MCF |
| #12 | Liberty County, MT | Jan 2026 | 26.3k MCF |
| #13 | Sheridan County, MT | Jan 2026 | 11.1k MCF |
| #14 | Rosebud County, MT | Jan 2026 | 1.0k MCF |
| #15 | Fergus County, MT | Jan 2026 | 551 MCF |
| #16 | Dawson County, MT | Jan 2026 | 445 MCF |
| #17 | Teton County, MT | Jan 2026 | 433 MCF |