| 1 | Badger Oil Company | Midland, TX 79701 | Oil & Gas Operator | Jun 1996 |
| 2 | Badger Oil Corporation | Lafayette, LA 70505 | Oil & Gas Operator | Nov 2011 |
| 3 | Bam Permian Operating, LLC | Midland, TX 79707 | Oil & Gas Operator | Dec 2025 |
| 4 | Barnett Energy, Inc. | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 5 | Basic Energy Services, L.P. | Fort Worth, TX 76102 | Oil Operator | Dec 2025 |
| 6 | Baxter, Kelly H. | Austin, TX 78767 | Oil & Gas Operator | Mar 2008 |
| 7 | Bay Rock Operating Company | San Antonio, TX 78212 | Oil & Gas Operator | Dec 2025 |
| 8 | Baylor Operating, LLC | San Antonio, TX 78217 | Oil & Gas Operator | Dec 2025 |
| 9 | Baytech Inc | Midland, TX 79702 | Oil & Gas Operator | Aug 2003 |
| 10 | BC Operating, Inc. | Midland, TX 79710 | Oil & Gas Operator | Dec 2025 |
| 11 | BCP Resources, LLC | Midland, TX 79705 | Oil & Gas Operator | Dec 2025 |
| 12 | Beach Exploration, Inc. | Midland, TX 79701 | Oil & Gas Operator | Dec 2025 |
| 13 | Belco Energy Corp. | Dallas, TX 75231 | Oil & Gas Operator | Mar 2015 |
| 14 | Bell, Cody, Jr. | Midland, TX 79702 | Oil & Gas Operator | Dec 2025 |
| 15 | Belvan Corp. | Midland, TX 79701 | Oil & Gas Operator | Jun 1998 |
| 16 | Berry Oil Comp. | Houston, TX 77002 | Oil & Gas Operator | Jul 2014 |
| 17 | Bettis, Boyle & Stovall | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 18 | BHP Petroleum (Americas) Inc | Houston, TX 77056 | Oil & Gas Operator | Mar 2015 |
| 19 | Big D Energy Company | New Braunfels, TX 78132 | Oil & Gas Operator | Dec 2025 |
| 20 | Big Star Oil & Gas, LLC | Midland, TX 79710 | Oil & Gas Operator | Sep 2017 |
| 21 | Bishop, D. L. | Midland, TX 79702 | Oil & Gas Operator | Mar 2012 |
| 22 | BJG Operating Company | Midland, TX 79702 | Oil Operator | Dec 2025 |
| 23 | Black Arrow Operating, LLC | Dennis, TX 76439 | Oil & Gas Operator | Dec 2025 |
| 24 | Black Gold Energy LLC | Jenks, OK 74037 | Oil Operator | Jun 2024 |
| 25 | Black Resources, Inc. | Granbury, TX 76049 | Oil & Gas Operator | Mar 2008 |
| 26 | Bluestem Energy Holdings, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Jun 2015 |
| 27 | Boaz Energy II Operating, LLC | Midland, TX 79705 | Oil & Gas Operator | Dec 2025 |
| 28 | Bold Operating, LLC | The Woodlands, TX 77381 | Oil & Gas Operator | May 2019 |
| 29 | Bomar Operating Co., LC | Bellaire, TX 77401 | Oil & Gas Operator | Dec 2025 |
| 30 | Boyd & McWilliams Energy Group | Midland, TX 79701 | Oil & Gas Operator | Dec 2025 |
| 31 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Aug 2025 |
| 32 | Braman, D. H., Jr. | Victoria, TX 77901 | Oil & Gas Operator | Dec 2008 |
| 33 | Brazos Petroleum, Inc. | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 34 | Breck Operating Corp. | Breckenridge, TX 76424 | Oil & Gas Operator | Aug 2025 |
| 35 | Breitburn Operating LP | Keithville, LA 71047 | Oil & Gas Operator | Dec 2025 |
| 36 | Bridwell Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Dec 2025 |
| 37 | Bright & Company | The Colony, TX 75056 | Oil & Gas Operator | May 2015 |
| 38 | Broken Horse, LLC | Rankin, TX 79778 | Oil & Gas Operator | Dec 2025 |
| 39 | Brotherton Production Co. | Spokane, WA 99216 | Oil & Gas Operator | Dec 2025 |
| 40 | Brown Tom Inc | Dallas, TX 75240 | Oil & Gas Operator | Mar 2015 |
| 41 | Brown, George R. Partnership,The | Houston, TX 77002 | Oil & Gas Operator | May 2006 |
| 42 | Brown, H. L., Jr. | Midland, TX 79702 | Oil & Gas Operator | May 2002 |
| 43 | Bta Oil Producers | Midland, TX 79701 | Oil & Gas Operator | Sep 2009 |
| 44 | Bta Oil Producers, LLC | Midland, TX 79701 | Oil & Gas Operator | Dec 2025 |
| 45 | Burk Royalty Co., LTD. | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 2025 |
| 46 | Burk Royalty Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Jan 2002 |
| 47 | Burlington Res O & G Co-McCamey | Midland, TX 79702 | Oil Operator | Mar 2002 |
| 48 | Burlington Resources Oil & Gas Company LP | Houston, TX 77252 | Oil & Gas Operator | Dec 2025 |
| 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 | Dec 2025 |
| 51 | Bustamante Resources LLC | Midland, TX 79710 | Oil & Gas Operator | Dec 2025 |
| 52 | Buttram Energies Inc | Oklahoma City, OK 73112-7235 | Oil & Gas Operator | Nov 2021 |
| 53 | Bynum Oil Company, Inc. | Midland, TX 79702 | Oil & Gas Operator | Jul 2003 |
| 54 | Byrd Operating Company | Midland, TX 79702 | Oil & Gas Operator | Dec 2025 |