| 1 | Bachtell Oil & Gas, LTD. | Longview, TX 75605 | Oil & Gas Operator | Mar 2025 |
| 2 | Bachtell, Charles Ray | Longview, TX 75605 | Oil & Gas Operator | Feb 2004 |
| 3 | Banner Oil & Gas LLC | Oklahoma City, OK 73159 | Oil & Gas Operator | Nov 2024 |
| 4 | Barrow-Shaver Resources Co. | Tyler, TX 75703 | Oil & Gas Operator | Mar 2025 |
| 5 | Basa Resources, Inc. | Dallas, TX 75254 | Oil & Gas Operator | Mar 2025 |
| 6 | Basic Energy Services, L.P. | Fort Worth, TX 76102 | Oil Operator | Mar 2025 |
| 7 | Bass Enterprises Production Co | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2006 |
| 8 | Beckville Disp Operations, LLC | Henderson, TX 75652 | Oil Operator | Mar 2025 |
| 9 | Bevo Production Co. | Amarillo, TX 79101 | Oil & Gas Operator | Dec 2014 |
| 10 | Big Run Production Company | Kilgore, TX 75663 | Oil & Gas Operator | Mar 2025 |
| 11 | Bigfoot Energy Services LLC | Carthage, TX 75633 | Oil & Gas Operator | Aug 2024 |
| 12 | Bison Energy Partners, Inc. | Houston, TX 77060 | Oil & Gas Operator | Sep 2001 |
| 13 | Bison Energy Partners, LTD. | Houston, TX 77060 | Oil & Gas Operator | Apr 2002 |
| 14 | Black Gold Energy LLC | Jenks, OK 74037 | Oil Operator | Jun 2024 |
| 15 | Black Horse Resources, LLC | Oklahoma City, OK 73112 | Oil & Gas Operator | Sep 2024 |
| 16 | Block "T" Petroleum, Inc. | Tyler, TX 75707 | Oil & Gas Operator | Mar 2025 |
| 17 | Blue Dome Operating, LLC | Tulsa, OK 74119 | Gas Operator | Mar 2025 |
| 18 | Bowerman Energy Company | Arlington, TX 76004 | Oil & Gas Operator | Dec 2006 |
| 19 | Bowles Energy, Inc. | Longview, TX 75601 | Oil & Gas Operator | Mar 2025 |
| 20 | Bowles Properties, Inc. | Longview, TX 75606 | Oil & Gas Operator | Dec 1998 |
| 21 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Nov 2024 |
| 22 | BP Prod. Corp. | Richardson, TX 75083 | Oil & Gas Operator | Mar 2025 |
| 23 | BPX Operating Company | Denver, CO 80202 | Oil & Gas Operator | Mar 2025 |
| 24 | Bracken Production Company | Midland, TX 79702 | Oil & Gas Operator | Oct 1995 |
| 25 | Brammer Engineering, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Mar 2025 |
| 26 | Brammer Petroleum, Inc. | Gainesville, TX 76241 | Oil & Gas Operator | Mar 2025 |
| 27 | Brammer-Keystone Energy, L.L.C. | Shreveport, LA 71101 | Oil & Gas Operator | Mar 2000 |
| 28 | Brandon Energy, Inc. | Bullard, TX 75757 | Oil & Gas Operator | Nov 2007 |
| 29 | Brangus Energy LLC | Kilgore, TX 75663 | Oil & Gas Operator | Mar 2025 |
| 30 | Breitburn Operating LP | Houston, TX 77002 | Oil & Gas Operator | Mar 2025 |
| 31 | BRG Petroleum, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Nov 2020 |
| 32 | Bristol Resources Corporation | Tulsa, OK 74170 | Oil & Gas Operator | Feb 2022 |
| 33 | Brock Oil & Gas Corporation | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2019 |
| 34 | Brookston Energy, Inc. | Tyler, TX 75702 | Oil & Gas Operator | Mar 2025 |
| 35 | Brothers Production Company Inc. | Midland, TX 79708 | Oil & Gas Operator | Mar 2025 |
| 36 | Brothers Resources, Inc. | Marshall, TX 75671 | Oil & Gas Operator | Jan 2004 |
| 37 | Brower Oil & Gas Co., Inc. | Graham, TX 76450 | Oil & Gas Operator | Mar 2025 |
| 38 | Brown Tom Inc | Dallas, TX 75240 | Oil & Gas Operator | Mar 2015 |
| 39 | Buckhorn Operating LLC | MT Enterprise, TX 75681 | Oil & Gas Operator | Mar 2025 |
| 40 | Buffco Production, Inc. | Longview, TX 75606 | Oil & Gas Operator | Mar 2025 |
| 41 | Burk Royalty Co., LTD. | Wichita Falls, TX 76308 | Oil & Gas Operator | Mar 2025 |
| 42 | Burk Royalty Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Jan 2002 |
| 43 | Burlington Resources Oil And Gas Co. | Houston, TX 77210 | Oil & Gas Operator | Mar 2023 |
| 44 | Byng Energy Group Inc | Enid, OK 73703 | Oil & Gas Operator | Mar 2025 |