| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Bass Enterprises Production Co | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2006 |
| 2 | Bear Oil And Gas Inc | Las Vegas, NV 89107 | Oil & Gas Operator | Jul 2016 |
| 3 | Berenergy Corporation | Denver, CO 80217 | Oil & Gas Operator | Oct 2025 |
| 4 | Bill Barrett Corporation | Denver, CO 80202 | Oil & Gas Operator | Dec 2017 |
| 5 | Bison IV Operating LLC | Oil & Gas Operator | Oct 2025 | |
| 6 | Borchert R V | Sidney, NE 69162 | Oil Operator | Apr 2009 |
| 7 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Aug 2025 |
| 8 | BP Production Company LLC | Evergreen, CO 80439 | Oil Operator | Jul 2001 |
| 9 | Braden Oil | Oil & Gas Operator | Mar 2007 | |
| 10 | Buchanan Wayman W | San Antonio, TX 78212 | Oil & Gas Operator | Sep 1990 |
| 11 | Burlington Resources Oil & Gas Company L | Gillette, WY 82718 | Oil & Gas Operator | Jan 2022 |