| 1 | Bannon Energy Inc | Houston, TX 77068 | Oil & Gas Operator | Jun 1998 |
| 2 | Basin Minerals Inc | Farmington, NM 87402 | Oil & Gas Operator | Mar 2005 |
| 3 | Basin Minerals LTD | Farmington, NM 87402 | Oil & Gas Operator | Feb 2005 |
| 4 | Basin Minerals Operating Company | Dripping Springs, TX 78620 | Oil & Gas Operator | Oct 2017 |
| 5 | Basin Oil & Gas Operating, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Apr 2026 |
| 6 | Bco Inc | Santa Fe, NM BADADDR | Oil & Gas Operator | Jan 1995 |
| 7 | Beartooth Oil & Gas Company | Billings, MT 59103 | Oil & Gas Operator | Feb 2026 |
| 8 | Benson-Montin-Greer DRLG Corp | Farmington, NM 87402 | Oil & Gas Operator | Mar 2026 |
| 9 | Berenergy Corporation | Denver, CO 80217 | Oil & Gas Operator | Mar 2026 |
| 10 | Billco Energy Inc | La Plata, NM 87418 | Oil & Gas Operator | Sep 2003 |
| 11 | Biya Operators Inc. | Littleton, CO 80160 | Oil Operator | Apr 2019 |
| 12 | BK Petroleum Inc | Farmington, NM 87499 | Oil & Gas Operator | Jun 1998 |
| 13 | Blackwood & Nichols LTD PTR | Oklahoma City, OK 73102 | Oil & Gas Operator | Aug 1996 |
| 14 | Bledsoe Petro Corporation | Dallas, TX 75201 | Oil & Gas Operator | Dec 2000 |
| 15 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Feb 2026 |
| 16 | Breck Operating Corp. | Breckenridge, TX 76424 | Oil & Gas Operator | Feb 2026 |
| 17 | Bridgecreek Resources (Colorado), LLC | Littleton, CO 80120 | Oil & Gas Operator | Feb 2026 |
| 18 | Bristol Resources Corporation | Tulsa, OK 74170 | Oil & Gas Operator | Feb 2022 |
| 19 | Burlington Resources Oil & Gas Company LP | Houston, TX 77252 | Oil & Gas Operator | Apr 2026 |