| 1 | B & W Southern Petroleum | The Woodlands, TX 77381 | Oil & Gas Operator | Aug 2009 |
| 2 | Baber Well Servicing Co. | Hobbs, NM 88240 | Oil & Gas Operator | May 1995 |
| 3 | Ballard Exploration Company,Inc. | Houston, TX 77002 | Oil & Gas Operator | Oct 2025 |
| 4 | Bam Permian Operating, LLC | Midland, TX 79707 | Oil & Gas Operator | Oct 2025 |
| 5 | Bargo Energy Company | Houston, TX 77010 | Oil & Gas Operator | May 2001 |
| 6 | Barj Oil Co. | Brownfield, TX 79316 | Oil & Gas Operator | Oct 2025 |
| 7 | Barnett Energy, Inc. | The Colony, TX 75056 | Oil & Gas Operator | Oct 2025 |
| 8 | Basic Energy Services, L.P. | Fort Worth, TX 76102 | Oil Operator | Oct 2025 |
| 9 | Baytech Inc | Midland, TX 79702 | Oil & Gas Operator | Aug 2003 |
| 10 | BC Operating, Inc. | Midland, TX 79710 | Oil & Gas Operator | Oct 2025 |
| 11 | BCP Resources, LLC | Midland, TX 79705 | Oil & Gas Operator | Oct 2025 |
| 12 | Beach Exploration, Inc. | Midland, TX 79701 | Oil & Gas Operator | Oct 2025 |
| 13 | Beard Oil Company | Oklahoma City, OK 73102 | Oil & Gas Operator | Aug 2013 |
| 14 | Beaver Oil & Gas Operating, LLC | Austin, TX 78746 | Oil & Gas Operator | Oct 2025 |
| 15 | Beekay Company | Dallas, TX 75219 | Oil & Gas Operator | Dec 1996 |
| 16 | Belco Energy Corp. | Dallas, TX 75231 | Oil & Gas Operator | Mar 2015 |
| 17 | Benchmark Production, LLC | Midland, TX 79701 | Oil Operator | May 2006 |
| 18 | Bexco Operating, Inc. | College Sta, TX 77845 | Oil & Gas Operator | Oct 2025 |
| 19 | BHP Petroleum (Americas) Inc | Houston, TX 77056 | Oil & Gas Operator | Mar 2015 |
| 20 | Black Bayou Operating, LLC | Fort Worth, TX 76116 | Oil & Gas Operator | Jan 2025 |
| 21 | Blackrock Operating, LLC | Tuscola, TX 79562 | Oil & Gas Operator | Oct 2025 |
| 22 | Blake Oil & Gas Corporation | Midland, TX 79701 | Oil & Gas Operator | May 2004 |
| 23 | Blanco Oil Co. | San Antonio, TX 78230 | Oil & Gas Operator | Feb 2004 |
| 24 | Bledsoe Partners, Inc. | Oklahoma City, OK 73120 | Oil & Gas Operator | Mar 1995 |
| 25 | Blue Ridge Resources, LLC | Midland, TX 79710 | Oil & Gas Operator | Oct 2025 |
| 26 | Bommer Engineering Co. | San Antonio, TX 78260 | Oil & Gas Operator | Oct 2025 |
| 27 | Bonanza Oil Company | Dallas, TX 75201 | Oil & Gas Operator | Apr 2000 |
| 28 | Boyd & McWilliams Operating, LLC | Midland, TX 79701 | Oil & Gas Operator | Oct 2025 |
| 29 | Boyd, D. K. Oil And Gas Co.,Inc. | Midland, TX 79703 | Oil & Gas Operator | Oct 2025 |
| 30 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Jun 2025 |
| 31 | Brady, W. Production, Inc. | Midland, TX 79708 | Oil & Gas Operator | Oct 2025 |
| 32 | Brahaney Drilling Co. | Midland, TX 79702 | Oil & Gas Operator | Feb 2014 |
| 33 | Brahaney Drilling Company, LTD. | Midland, TX 79702 | Oil & Gas Operator | Oct 2015 |
| 34 | Brazos Petroleum, Inc. | Graham, TX 76450 | Oil & Gas Operator | Oct 2025 |
| 35 | Breck Operating Corp. | Breckenridge, TX 76424 | Oil & Gas Operator | Jun 2025 |
| 36 | Breitburn Operating LP | Houston, TX 77002 | Oil & Gas Operator | Oct 2025 |
| 37 | Bridwell Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Oct 2025 |
| 38 | Bridwell Oil Management, LLC | Wichita Falls, TX 76307 | Oil & Gas Operator | Oct 2025 |
| 39 | Bright & Company | The Colony, TX 75056 | Oil & Gas Operator | May 2015 |
| 40 | Bristol Resources Corporation | Tulsa, OK 74170 | Oil & Gas Operator | Feb 2022 |
| 41 | Broman Oil & Gas LP | Fort Worth, TX 76102 | Oil & Gas Operator | May 2017 |
| 42 | Brooks, E. B., Jr. | Dallas, TX 75206 | Oil & Gas Operator | May 2018 |
| 43 | Brown Tom Inc | Dallas, TX 75240 | Oil & Gas Operator | Mar 2015 |
| 44 | Brown, George R. Partnership,The | Houston, TX 77002 | Oil & Gas Operator | May 2006 |
| 45 | Browning Oil Company, Inc. | Dallas, TX 75251 | Oil & Gas Operator | Oct 2025 |
| 46 | Bta Oil Producers | Midland, TX 79701 | Oil & Gas Operator | Sep 2009 |
| 47 | Bta Oil Producers, LLC | Midland, TX 79701 | Oil & Gas Operator | Oct 2025 |
| 48 | Bullin, R. E. Operating Inc. | Levelland, TX 79336 | Oil & Gas Operator | Oct 2025 |
| 49 | Burgess, W. E. | Fort Worth, TX 76147 | Oil & Gas Operator | Oct 2025 |
| 50 | Burk Royalty Co., LTD. | Wichita Falls, TX 76308 | Oil & Gas Operator | Oct 2025 |
| 51 | Bustamante Resources LLC | Midland, TX 79710 | Oil & Gas Operator | Oct 2025 |
| 52 | Butler, Kevin O. & Assoc., Inc. | Midland, TX 79702 | Oil & Gas Operator | Oct 2025 |
| 53 | BXP Operating, LLC | Houston, TX 77079 | Oil & Gas Operator | Oct 2025 |
| 54 | Byrd Operating Company | Midland, TX 79702 | Oil & Gas Operator | Oct 2025 |