| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Banks Operating Company | Oil & Gas Operator | Jul 1989 | |
| 2 | Bass Enterprises Production Co | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2006 |
| 3 | Beartooth Oil & Gas Company | Billings, MT 59103 | Oil & Gas Operator | Feb 2024 |
| 4 | Big Chief Exploration | Palisades, CO 81526 | Oil & Gas Operator | Oct 1993 |
| 5 | Big Wells Energy Corp | Katy, TX 77494 | Oil & Gas Operator | Sep 2019 |
| 6 | Black Hills Exploration & Production Inc | Newcastle, WY 82701 | Oil & Gas Operator | May 2018 |
| 7 | Bower Properties LLC | Worland, WY 82401 | Oil & Gas Operator | Aug 2005 |
| 8 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Jan 2024 |
| 9 | Breitburn Operating, LP | Houston, TX 77002 | Oil & Gas Operator | Apr 2024 |
| 10 | Brent Exploration | Oil & Gas Operator | Dec 1993 |