| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Bannon Energy Inc | Houston, TX 77068 | Oil & Gas Operator | Jun 1998 |
| 2 | Beartooth Oil & Gas Company | Billings, MT 59103 | Oil & Gas Operator | Oct 2024 |
| 3 | Belco Energy Corp. | Dallas, TX 75231 | Oil & Gas Operator | Mar 2015 |
| 4 | Berco Resources LLC | Denver, CO 80206 | Oil & Gas Operator | Sep 2009 |
| 5 | Bill Barrett Corporation | Denver, CO 80202 | Oil & Gas Operator | Dec 2017 |
| 6 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Oct 2024 |
| 7 | Breitburn Operating LP | Houston, TX 77002 | Oil & Gas Operator | Dec 2024 |
| 8 | Brown Tom Inc | Dallas, TX 75240 | Oil & Gas Operator | Mar 2015 |
| 9 | Burlington Resources Oil & Gas Company L | Gillette, WY 82718 | Oil & Gas Operator | Jan 2022 |