| 1 | B D Production Co., Inc. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Mar 2025 |
| 2 | Bailey, L. J. | Pleasanton, TX 78064 | Oil & Gas Operator | Jul 2003 |
| 3 | Bar V Energy LLC | Poteet, TX 78065 | Oil Operator | Mar 2025 |
| 4 | Bass Enterprises Production Co | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2006 |
| 5 | Bay Rock Operating Company | San Antonio, TX 78212 | Oil & Gas Operator | Mar 2025 |
| 6 | Baylor Operating, LLC | Austin, TX 78766 | Oil & Gas Operator | Mar 2025 |
| 7 | Bayshore Operating Co. | Ingleside, TX 78362 | Oil & Gas Operator | Mar 2009 |
| 8 | Bayshore Operating Corp., L.L.C. | Luling, TX 78648 | Oil Operator | Mar 2025 |
| 9 | Baytex USA Development, LLC | Houston, TX 77056 | Oil & Gas Operator | Sep 2017 |
| 10 | BB-Southtex, LLC | San Antonio, TX 78259 | Oil & Gas Operator | Oct 2024 |
| 11 | Bellows Operating Co., L. C. | Goliad, TX 77963 | Oil & Gas Operator | Mar 2025 |
| 12 | Bellows, Dewey Oper. Co., LTD. | Refugio, TX 78377 | Oil & Gas Operator | Jul 2013 |
| 13 | Bering Operating Company, Inc. | Tyler, TX 75701 | Oil & Gas Operator | May 2001 |
| 14 | Beta Oil Corporation | San Antonio, TX 78232 | Oil & Gas Operator | Mar 2025 |
| 15 | Bigfoot Oil LLC | Denver, CO 80206 | Oil Operator | Mar 2025 |
| 16 | Bishop Petroleum Inc. | Houston, TX 77007 | Oil & Gas Operator | Mar 2025 |
| 17 | Black Jack Services, L.L.C. | Bastrop, TX 78602 | Oil & Gas Operator | Mar 2025 |
| 18 | Black Jack Well Service, Inc. | Somerset, TX 78069 | Oil & Gas Operator | Aug 2003 |
| 19 | Black Sable Energy, LLC | San Antonio, TX 78209 | Oil Operator | Jan 2018 |
| 20 | Blackbrush O & G, Inc. | San Antonio, TX 78258 | Oil & Gas Operator | Apr 2012 |
| 21 | Blackbrush O & G, LLC | San Antonio, TX 78259 | Oil & Gas Operator | Mar 2025 |
| 22 | Blackjack Operating L. L. C. | Schertz, TX 78154 | Oil & Gas Operator | Mar 2025 |
| 23 | Blair, Jack N. | Midland, TX 79702 | Oil & Gas Operator | May 1996 |
| 24 | Bledsoe, R.K. Trust Oil Operator | Jourdanton, TX 78026 | Oil & Gas Operator | Mar 2025 |
| 25 | Blue Quail Oil Co. | Midland, TX 79706 | Oil & Gas Operator | Mar 2025 |
| 26 | Blue Star Energy, Inc. | Shawnee, OK 74802 | Oil & Gas Operator | Mar 2025 |
| 27 | Bodden Production | Poth, TX 78147 | Oil & Gas Operator | Mar 2025 |
| 28 | Bommer Engineering Co. | San Antonio, TX 78260 | Oil & Gas Operator | Mar 2025 |
| 29 | BP Products North America Inc | Chicago, IL 60606 | Gas Operator | Jan 2017 |
| 30 | Brayton Oil Corp. | Corpus Chrsti, TX 78476 | Oil & Gas Operator | Dec 1994 |
| 31 | Bright & Company | The Colony, TX 75056 | Oil & Gas Operator | May 2015 |
| 32 | Bristol Resources Corporation | Tulsa, OK 74170 | Oil & Gas Operator | Feb 2022 |
| 33 | Britanco, L.L.C. | Falls City, TX 78113 | Oil & Gas Operator | Mar 2025 |
| 34 | Brothers Production Company Inc. | Midland, TX 79708 | Oil & Gas Operator | Mar 2025 |
| 35 | Brymer Contracting Incorporated | Pleasanton, TX 78064 | Oil & Gas Operator | Mar 2025 |
| 36 | Brymer, Jack Contr. Serv. | George West, TX 78022 | Oil Operator | Mar 2025 |
| 37 | Buccaneer Operating LLC | Kilgore, TX 75663 | Oil & Gas Operator | Mar 2025 |
| 38 | Burk Royalty Co., LTD. | Wichita Falls, TX 76308 | Oil & Gas Operator | Mar 2025 |
| 39 | Burk Royalty Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Jan 2002 |
| 40 | Burlington Resources Oil & Gas Company LP | Houston, TX 77252 | Oil & Gas Operator | Mar 2025 |
| 41 | Burnett Oil Co Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Mar 2025 |
| 42 | Butler, Kevin O. | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 43 | Butler, Kevin O. & Assoc., Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2025 |