| Rank | County | Production Period | Oil Production |
|---|---|---|---|
| #1 | Richland County, MT | Apr 2025 | 1.4M BBLs |
| #2 | Roosevelt County, MT | Apr 2025 | 359k BBLs |
| #3 | Fallon County, MT | Apr 2025 | 178.2k BBLs |
| #4 | Powder River County, MT | Apr 2025 | 84.6k BBLs |
| #5 | Sheridan County, MT | Apr 2025 | 33.7k BBLs |
| #6 | Dawson County, MT | Apr 2025 | 30.6k BBLs |
| #7 | Wibaux County, MT | Apr 2025 | 21.2k BBLs |
| #8 | Blaine County, MT | Apr 2025 | 21k BBLs |
| #9 | Carbon County, MT | Apr 2025 | 19.5k BBLs |
| #10 | Toole County, MT | Apr 2025 | 10.4k BBLs |
| #11 | Glacier County, MT | Apr 2025 | 9.2k BBLs |
| #12 | Valley County, MT | Apr 2025 | 4.8k BBLs |
| Rank | County | Production Period | Gas Production |
|---|---|---|---|
| #1 | Powder River County, MT | Apr 2025 | 5.4M MCF |
| #2 | Richland County, MT | Apr 2025 | 2.0M MCF |
| #3 | Roosevelt County, MT | Apr 2025 | 520.4k MCF |
| #4 | Phillips County, MT | Apr 2025 | 457.8k MCF |
| #5 | Fallon County, MT | Apr 2025 | 318.9k MCF |
| #6 | Blaine County, MT | Apr 2025 | 182.6k MCF |
| #7 | Hill County, MT | Apr 2025 | 161.2k MCF |
| #8 | Toole County, MT | Apr 2025 | 110.2k MCF |
| #9 | Carbon County, MT | Apr 2025 | 74.1k MCF |
| #10 | Glacier County, MT | Apr 2025 | 67k MCF |
| #11 | Valley County, MT | Apr 2025 | 44.9k MCF |
| #12 | Chouteau County, MT | Apr 2025 | 32.6k MCF |