| 1 | Barbee, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Mar 2008 |
| 2 | Barnett Operating, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Mar 1999 |
| 3 | Basic Energy Services, L.P. | Fort Worth, TX 76102 | Oil Operator | Feb 2026 |
| 4 | Bass Enterprises Production Co | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2006 |
| 5 | Baxter, Kelly H. Oil And Gas Co. | Austin, TX 78767 | Oil & Gas Operator | Nov 2010 |
| 6 | Bbe Production Co. | Haskell, TX 79521 | Oil & Gas Operator | May 1997 |
| 7 | Bbe Production, LLC | Haskell, TX 79521 | Oil Operator | Feb 2026 |
| 8 | Belco Energy Corp. | Dallas, TX 75231 | Oil & Gas Operator | Mar 2015 |
| 9 | Benson & Schoen Oil Co., Inc. | Abilene, TX 79602 | Oil & Gas Operator | Apr 2012 |
| 10 | Benson Mineral Group, Inc. | Denver, CO 80202 | Oil & Gas Operator | Apr 2022 |
| 11 | Best Petroleum Explorations,Inc. | Jacksboro, TX 76458 | Oil & Gas Operator | Feb 2026 |
| 12 | Bettis, Boyle & Stovall | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 13 | Big Sandy Oil Inc. | Manchaca, TX 78652 | Oil & Gas Operator | Aug 2003 |
| 14 | Bitter Creek Petroleum Co. | Knox City, TX 79529 | Oil & Gas Operator | Feb 2026 |
| 15 | Bloomer & Associates, Inc. | Lago VIsta, TX 78645 | Oil & Gas Operator | Jul 2002 |
| 16 | BMBD Enterprises, LLC | Iowa Park, TX 76367 | Oil & Gas Operator | Feb 2026 |
| 17 | Borderline Operating Corp. | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 18 | Borders, Delbert L. Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Feb 2019 |
| 19 | Bowerman Oil & Gas, Inc. | Arlington, TX 76003 | Oil & Gas Operator | Feb 2026 |
| 20 | Boyd & McWilliams Energy Group | Midland, TX 79701 | Oil & Gas Operator | Feb 2026 |
| 21 | Boyd, Foy Management Corp. | Midland, TX 79702 | Oil & Gas Operator | Dec 2004 |
| 22 | Breck Operating Corp. | Breckenridge, TX 76424 | Oil & Gas Operator | Nov 2025 |
| 23 | Bridwell Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Feb 2026 |
| 24 | Bright & Company | The Colony, TX 75056 | Oil & Gas Operator | May 2015 |
| 25 | Brooks, E. B., Jr. | Dallas, TX 75206 | Oil & Gas Operator | May 2018 |
| 26 | Brower Oil & Gas Co., Inc. | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 27 | Brown Tom Inc | Dallas, TX 75240 | Oil & Gas Operator | Mar 2015 |
| 28 | Bullet Development, LLC | Abilene, TX 79601 | Oil & Gas Operator | Feb 2026 |
| 29 | Burk Royalty Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Jan 2002 |
| 30 | Burns Operating | Wichita Falls, TX 76307 | Oil & Gas Operator | Sep 2002 |