| 1 | B & B Operating Company | Odessa, TX 79760 | Oil & Gas Operator | Oct 2025 |
| 2 | Badger Oil Company | Midland, TX 79701 | Oil & Gas Operator | Jun 1996 |
| 3 | Baker Operating, Inc. | Odessa, TX 79764 | Oil & Gas Operator | Oct 2025 |
| 4 | Bam Permian Operating, LLC | Midland, TX 79707 | Oil & Gas Operator | Oct 2025 |
| 5 | Banam Corporation | Midland, TX 79702 | Oil & Gas Operator | Nov 2013 |
| 6 | Banks, R. C. | Midland, TX 79702 | Oil & Gas Operator | Apr 2016 |
| 7 | Bargo Energy Company | Houston, TX 77010 | Oil & Gas Operator | May 2001 |
| 8 | Basic Energy Services, L.P. | Fort Worth, TX 76102 | Oil Operator | Oct 2025 |
| 9 | Basin Well Service Of Odessa,Inc | Odessa, TX 79768 | Oil & Gas Operator | Oct 2025 |
| 10 | Bass Enterprises Production Co | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2006 |
| 11 | Baxter, D. B. Inc. | Midland, TX 79708 | Oil & Gas Operator | Oct 2025 |
| 12 | Baxter, Kelly H. | Austin, TX 78767 | Oil & Gas Operator | Mar 2008 |
| 13 | Baylor Operating, LLC | San Antonio, TX 78217 | Oil & Gas Operator | Oct 2025 |
| 14 | BC Operating, Inc. | Midland, TX 79710 | Oil & Gas Operator | Oct 2025 |
| 15 | Beach Exploration, Inc. | Midland, TX 79701 | Oil & Gas Operator | Oct 2025 |
| 16 | Beck Resources Incorporated | Hennessey, OK 73742 | Oil & Gas Operator | Jun 2025 |
| 17 | Belco Energy Corp. | Dallas, TX 75231 | Oil & Gas Operator | Mar 2015 |
| 18 | Bepco, L.P. | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2008 |
| 19 | Beren Corporation | Wichita, KS 67206 | Oil & Gas Operator | Oct 2025 |
| 20 | Berry Petroleum Company | Denver, CO 80202 | Oil & Gas Operator | Feb 2014 |
| 21 | Berry, O. H. | Midland, TX 79702 | Oil & Gas Operator | Dec 1993 |
| 22 | Besto Oil & Gas, Inc. | Odessa, TX 79768 | Oil & Gas Operator | Oct 2018 |
| 23 | Bettis, Boyle & Stovall | Graham, TX 76450 | Oil & Gas Operator | Oct 2025 |
| 24 | Big D Energy Company | New Braunfels, TX 78132 | Oil & Gas Operator | Oct 2025 |
| 25 | Big Star Oil & Gas, LLC | Midland, TX 79710 | Oil & Gas Operator | Sep 2017 |
| 26 | Black Dome Energy Corporation | Golden, CO 80401 | Oil & Gas Operator | Dec 2019 |
| 27 | Blackbeard Operating, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Oct 2025 |
| 28 | Blake Oil & Gas Corporation | Midland, TX 79701 | Oil & Gas Operator | May 2004 |
| 29 | Blazer Energy Corp. | Alexandria, VA 22314 | Oil & Gas Operator | Dec 2014 |
| 30 | Bluestem Energy Holdings, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Jun 2015 |
| 31 | Boaz Energy II Operating, LLC | Midland, TX 79705 | Oil & Gas Operator | Oct 2025 |
| 32 | Bopco, L.P. | Midland, TX 79701 | Oil & Gas Operator | Oct 2025 |
| 33 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Jun 2025 |
| 34 | BP Prod. Corp. | Richardson, TX 75083 | Oil & Gas Operator | Oct 2025 |
| 35 | Breck Operating Corp. | Breckenridge, TX 76424 | Oil & Gas Operator | Jun 2025 |
| 36 | Bridwell Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Oct 2025 |
| 37 | Bright & Company | The Colony, TX 75056 | Oil & Gas Operator | May 2015 |
| 38 | Britnic Oil & Gas, Inc. | College Sta, TX 77845 | Oil & Gas Operator | Oct 2025 |
| 39 | Brown Tom Inc | Dallas, TX 75240 | Oil & Gas Operator | Mar 2015 |
| 40 | Brown, H. L., Jr. | Midland, TX 79702 | Oil & Gas Operator | May 2002 |
| 41 | Brown, H.L. Operating, L.L.C. | Midland, TX 79702 | Oil & Gas Operator | Oct 2025 |
| 42 | Bta Oil Producers, LLC | Midland, TX 79701 | Oil & Gas Operator | Oct 2025 |
| 43 | Bugington Energy, LLC | Odessa, TX 79768 | Oil & Gas Operator | Apr 2018 |
| 44 | Burk Royalty Co., LTD. | Wichita Falls, TX 76308 | Oil & Gas Operator | Oct 2025 |
| 45 | Burleson Petroleum, Inc. | Midland, TX 79702 | Oil & Gas Operator | Oct 2025 |
| 46 | Burleson, Lewis B. Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2010 |
| 47 | Burlington Res O & G Co-McCamey | Midland, TX 79702 | Oil Operator | Mar 2002 |
| 48 | Burlington Res O & G Co-Midland | Houston, TX 77252 | Oil & Gas Operator | Mar 2020 |
| 49 | Burlington Resources Oil & Gas Company LP | Houston, TX 77252 | Oil & Gas Operator | Oct 2025 |
| 50 | Burlington Resources Oil And Gas Co. | Houston, TX 77210 | Oil & Gas Operator | Mar 2023 |
| 51 | Burnett Oil Co Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Oct 2025 |
| 52 | Bustamante Oil Company | Midland, TX 79710 | Oil & Gas Operator | Oct 2025 |
| 53 | Byrd Operating Company | Midland, TX 79702 | Oil & Gas Operator | Oct 2025 |
| 54 | Byrne Oil Company | Lubbock, TX 79424 | Oil & Gas Operator | Oct 2025 |
| 55 | Byrne, Robert E. | Lubbock, TX 79416 | Oil & Gas Operator | Jan 2005 |