| 1 | B & M Oil & Gas LLC | Bartlesville, OK 74006-5702 | Oil Operator | May 2026 |
| 2 | Baber, Bill M. | Petrolia, TX 76377 | Oil & Gas Operator | Sep 2026 |
| 3 | Bam Permian Operating, LLC | Midland, TX 79707 | Oil & Gas Operator | Sep 2026 |
| 4 | Barnett Energy, Inc. | Graham, TX 76450 | Oil & Gas Operator | Sep 2026 |
| 5 | Basic Energy Services, L.P. | Fort Worth, TX 76102 | Oil Operator | Sep 2026 |
| 6 | Bass Enterprises Production Co | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2006 |
| 7 | Baxter, Murphy H. | Houston, TX 77002 | Oil & Gas Operator | Sep 1998 |
| 8 | Bayridge Texas Corp. | Big Spring, TX 79720 | Oil & Gas Operator | Jul 2004 |
| 9 | Baytech Inc | Midland, TX 79702 | Oil & Gas Operator | Aug 2003 |
| 10 | BC Operating, Inc. | Midland, TX 79710 | Oil & Gas Operator | Sep 2026 |
| 11 | Beach Exploration, Inc. | Midland, TX 79701 | Oil & Gas Operator | Sep 2026 |
| 12 | Bear Creek Energy, LLC | Sealy, TX 77474 | Oil Operator | Sep 2026 |
| 13 | Bedrock Production, LLC | Fort Worth, TX 76106 | Oil & Gas Operator | May 2026 |
| 14 | Belco Energy Corp. | Dallas, TX 75231 | Oil & Gas Operator | Mar 2015 |
| 15 | Bellows Operating Co., L. C. | Goliad, TX 77963 | Oil & Gas Operator | Sep 2026 |
| 16 | Berkshire Operating, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Sep 2026 |
| 17 | Berry Oil Comp. | Houston, TX 77002 | Oil & Gas Operator | Jul 2014 |
| 18 | Bettis, Boyle & Stovall | Graham, TX 76450 | Oil & Gas Operator | Sep 2026 |
| 19 | Big Star Oil & Gas, LLC | Midland, TX 79710 | Oil & Gas Operator | Sep 2017 |
| 20 | Birch Operations, Inc. | Houston, TX 77010 | Oil & Gas Operator | Sep 2026 |
| 21 | Black Arrow Operating, LLC | Dennis, TX 76439 | Oil & Gas Operator | Sep 2026 |
| 22 | Black Gold Energy LLC | Jenks, OK 74037 | Oil Operator | Jun 2024 |
| 23 | Black Swan Operating, LLC | Denver, CO 80202 | Oil & Gas Operator | May 2023 |
| 24 | Blair Exploration, Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 2011 |
| 25 | Blair, Jack N. | Midland, TX 79702 | Oil & Gas Operator | May 1996 |
| 26 | Bledsoe Partners, Inc. | Oklahoma City, OK 73120 | Oil & Gas Operator | Mar 1995 |
| 27 | Blue Darter Energy, LLC | Sunnyvale, TX 75182 | Oil & Gas Operator | Aug 2019 |
| 28 | Blue Ridge Resources, LLC | Midland, TX 79710 | Oil & Gas Operator | Sep 2026 |
| 29 | Bommer Engineering Co. | San Antonio, TX 78260 | Oil & Gas Operator | Sep 2026 |
| 30 | Bosque Texas Oil LLC | Midland, TX 79701 | Oil & Gas Operator | Sep 2026 |
| 31 | Boyd & McWilliams Energy Group | Midland, TX 79701 | Oil & Gas Operator | Sep 2026 |
| 32 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Jun 2026 |
| 33 | Brady, W. Production, Inc. | Midland, TX 79708 | Oil & Gas Operator | Sep 2026 |
| 34 | Brammer Engineering, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Sep 2026 |
| 35 | Brammer Supply Inc | Gainesville, TX 76240 | Oil & Gas Operator | Nov 2014 |
| 36 | Brazos Petroleum, Inc. | Graham, TX 76450 | Oil & Gas Operator | Sep 2026 |
| 37 | Breck Operating Corp. | Breckenridge, TX 76424 | Oil & Gas Operator | Jun 2026 |
| 38 | Breitburn Operating LP | Keithville, LA 71047 | Oil & Gas Operator | Sep 2026 |
| 39 | Brigham Oil & Gas, L.P. | Austin, TX 78730 | Oil & Gas Operator | Oct 2015 |
| 40 | Brock, J. | Midland, TX 79702 | Oil & Gas Operator | Sep 2026 |
| 41 | Brothers Production Company Inc. | Midland, TX 79708 | Oil & Gas Operator | Sep 2026 |
| 42 | Brown Tom Inc | Dallas, TX 75240 | Oil & Gas Operator | Mar 2015 |
| 43 | Brown, H. L., Jr. | Midland, TX 79702 | Oil & Gas Operator | May 2002 |
| 44 | Brown, H.L. Operating, L.L.C. | Midland, TX 79702 | Oil & Gas Operator | Sep 2026 |
| 45 | Bta Oil Producers | Midland, TX 79701 | Oil & Gas Operator | Sep 2009 |
| 46 | Bulldog Operating Company | Artesia, NM 88211 | Oil & Gas Operator | Sep 2026 |
| 47 | Burleson Petroleum, Inc. | Midland, TX 79702 | Oil & Gas Operator | Sep 2026 |
| 48 | Burlington Resources Oil & Gas Company LP | Houston, TX 77252 | Oil & Gas Operator | Sep 2026 |
| 49 | Burlington Resources Oil And Gas Co. | Houston, TX 77210 | Oil & Gas Operator | Mar 2023 |
| 50 | Bustamante Oil Company | Midland, TX 79710 | Oil & Gas Operator | Sep 2026 |
| 51 | Butler, Kevin O. | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 52 | Butler, Kevin O. & Assoc., Inc. | Midland, TX 79702 | Oil & Gas Operator | Sep 2026 |