| 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 | Mar 2025 |
| 3 | Baker, Brent Oil & Gas, Inc. | Oklahoma City, OK 73149 | Oil & Gas Operator | Mar 2025 |
| 4 | Barker Production Co. | Shamrock, TX 79079 | Oil & Gas Operator | Mar 2010 |
| 5 | Barker Production Co., LP | San Angelo, TX 76904 | Oil & Gas Operator | Mar 2025 |
| 6 | Barker, Rodney | Shamrock, TX 79079 | Oil & Gas Operator | Aug 2012 |
| 7 | Barrett Resources Corporation | Denver, CO 80202 | Oil & Gas Operator | Sep 2004 |
| 8 | Basa Resources, Inc. | Dallas, TX 75254 | Oil & Gas Operator | Mar 2025 |
| 9 | Batton Oil & Gas, LLC | Spearman, TX 79081 | Oil & Gas Operator | Mar 2025 |
| 10 | BC Operating, Inc. | Midland, TX 79710 | Oil & Gas Operator | Mar 2025 |
| 11 | Bce-Mach II LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Mar 2025 |
| 12 | Bce-Mach III LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Mar 2025 |
| 13 | Beaver Oil Company Inc | New Matamoras, OH 45767 | Oil & Gas Operator | Dec 2020 |
| 14 | Benson-McCown & Company | Amarillo, TX 79114 | Oil & Gas Operator | Jul 2016 |
| 15 | Bevo Production Co. | Amarillo, TX 79101 | Oil & Gas Operator | Dec 2014 |
| 16 | Bison Petroleum Corporation | Amarillo, TX 79121 | Oil & Gas Operator | Mar 1996 |
| 17 | Blackbeard Operating, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Mar 2025 |
| 18 | Blackjack Oil & Gas, Inc. | Hennessey, OK 73742 | Oil & Gas Operator | Mar 2025 |
| 19 | Blakemore, Inc. | Richardson, TX 75080 | Oil & Gas Operator | Dec 2012 |
| 20 | Blue Dolphin Production LLC | Oklahoma City, OK 73142 | Oil & Gas Operator | Jan 2025 |
| 21 | Bluemark Energy LLC | Tulsa, OK 74120 | Oil & Gas Operator | Dec 2024 |
| 22 | Bowman, Fred Inc. | Dallas, TX 75225 | Oil & Gas Operator | Feb 2014 |
| 23 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Dec 2024 |
| 24 | Bracken Energy Company | Oklahoma City, OK 73118 | Oil & Gas Operator | Mar 2015 |
| 25 | Bracken Operating, L.L.C. | Perryton, TX 79070 | Oil & Gas Operator | Mar 2025 |
| 26 | Bravo Natural Resources, Inc | Oklahoma City, OK 73154 | Oil & Gas Operator | Jun 2009 |
| 27 | Breck Operating Corp. | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2024 |
| 28 | Bridge Oil Company LP | Midland, TX 79702 | Oil & Gas Operator | May 1999 |
| 29 | Brigham Oil & Gas, L.P. | Austin, TX 78730 | Oil & Gas Operator | Oct 2015 |
| 30 | Bristol Resources Corporation | Tulsa, OK 74170 | Oil & Gas Operator | Feb 2022 |
| 31 | Bronco Oil Company | San Angelo, TX 76904 | Oil & Gas Operator | Dec 2024 |
| 32 | Brown, H. L., Jr. | Midland, TX 79702 | Oil & Gas Operator | May 2002 |
| 33 | Brown, H.L. Operating, L.L.C. | Midland, TX 79702 | Oil & Gas Operator | Mar 2025 |
| 34 | Burk Royalty Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Jan 2002 |
| 35 | Burlington Resources Oil & Gas Company LP | Houston, TX 77252 | Oil & Gas Operator | Mar 2025 |
| 36 | Burlington Resources Oil And Gas Co. | Houston, TX 77210 | Oil & Gas Operator | Mar 2023 |
| 37 | Buttram Energies Inc | Oklahoma City, OK 73112-7235 | Oil & Gas Operator | Nov 2021 |