| 1 | B & B Farm Industries, Inc. | Spearman, TX 79081 | Oil & Gas Operator | Apr 2002 |
| 2 | B And G Production, Inc. | Woodward, OK 73801 | Oil & Gas Operator | Apr 2025 |
| 3 | B J Resources, L.L.C. | Athens, TX 75751 | Oil & Gas Operator | Apr 2025 |
| 4 | Bannon Energy Inc | Houston, TX 77068 | Oil & Gas Operator | Jun 1998 |
| 5 | Barrett Resources Corporation | Denver, CO 80202 | Oil & Gas Operator | Sep 2004 |
| 6 | Batton Oil & Gas, LLC | Spearman, TX 79081 | Oil & Gas Operator | Apr 2025 |
| 7 | Baytide Petr. Inc. | Tulsa, OK 74103 | Oil & Gas Operator | Dec 1997 |
| 8 | Bce-Mach II LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Apr 2025 |
| 9 | Bce-Mach III LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Apr 2025 |
| 10 | Be Anadarko II, LLC | Austin, TX 78731 | Oil & Gas Operator | Apr 2025 |
| 11 | Beach Exploration, Inc. | Midland, TX 79701 | Oil & Gas Operator | Apr 2025 |
| 12 | Beard Oil Company | Oklahoma City, OK 73102 | Oil & Gas Operator | Aug 2013 |
| 13 | Beck Resources Incorporated | Hennessey, OK 73742 | Oil & Gas Operator | Jan 2025 |
| 14 | Bison Petroleum Corporation | Amarillo, TX 79121 | Oil & Gas Operator | Mar 1996 |
| 15 | Blackbeard Operating, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Apr 2025 |
| 16 | Blue Dolphin Production LLC | Oklahoma City, OK 73142 | Oil & Gas Operator | Feb 2025 |
| 17 | Bluegrass Energy Inc | Houston, TX 77057 | Oil & Gas Operator | Feb 2025 |
| 18 | Borderline Operating Corp. | Graham, TX 76450 | Oil & Gas Operator | Apr 2025 |
| 19 | Bowman, Fred Inc. | Dallas, TX 75225 | Oil & Gas Operator | Feb 2014 |
| 20 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Jan 2025 |
| 21 | BP Operating Company, LLC | Dallas, TX 75225 | Oil & Gas Operator | Jul 2022 |
| 22 | Bracken Operating, L.L.C. | Perryton, TX 79070 | Oil & Gas Operator | Apr 2025 |
| 23 | Bravo Natural Gas, LLC | Tulsa, OK 74136 | Oil & Gas Operator | Aug 2012 |
| 24 | Brazos Petroleum, Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2025 |
| 25 | Breck Operating Corp. | Breckenridge, TX 76424 | Oil & Gas Operator | Jan 2025 |
| 26 | BRG Lone Star LTD. | Tulsa, OK 74136 | Oil & Gas Operator | Apr 2025 |
| 27 | Brighton Energy LLC | Tulsa, OK 74170 | Oil & Gas Operator | Mar 2015 |
| 28 | Bristol Resources Corporation | Tulsa, OK 74170 | Oil & Gas Operator | Feb 2022 |
| 29 | Buffco Production, Inc. | Longview, TX 75606 | Oil & Gas Operator | Apr 2025 |
| 30 | Burlington Resources Oil & Gas Company LP | Houston, TX 77252 | Oil & Gas Operator | Apr 2025 |
| 31 | Burlington Resources Oil And Gas Co. | Houston, TX 77210 | Oil & Gas Operator | Mar 2023 |