| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Ballard Petroleum LLC | Billings, MT 59102-5406 | Oil & Gas Operator | Apr 2014 |
| 2 | Basin Exploration Inc | Denver, CO 80202 | Oil & Gas Operator | Sep 2004 |
| 3 | Bayless Producer LLC* Robert L | Oil & Gas Operator | Jul 2025 | |
| 4 | Beartooth Oil & Gas Company | Billings, MT 59103 | Oil & Gas Operator | Aug 2025 |
| 5 | Beeman Oil & Gas LLC | Oil & Gas Operator | Aug 2025 | |
| 6 | Booco'S Contract Services Inc | Oil & Gas Operator | Jan 2021 | |
| 7 | Bta Oil Producers | Midland, TX 79701 | Oil & Gas Operator | Sep 2009 |