| 1 | Barnett Energy, Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2024 |
| 2 | Baxter, Kelly H. | Austin, TX 78767 | Oil & Gas Operator | Mar 2008 |
| 3 | Bay Rock Operating Company | San Antonio, TX 78212 | Oil & Gas Operator | Apr 2024 |
| 4 | Beachtex Oil Company, LLC | San Antonio, TX 78257 | Oil & Gas Operator | Apr 2024 |
| 5 | Bennett, R. C., Company | Midland, TX 79702 | Oil & Gas Operator | Dec 2019 |
| 6 | Berenergy Corporation | Denver, CO 80217 | Oil & Gas Operator | Feb 2024 |
| 7 | BHP Billiton Pet(Txla Op) Co | Denver, CO 80202 | Oil & Gas Operator | Jul 2019 |
| 8 | Blackbrush O & G, LLC | San Antonio, TX 78259 | Oil & Gas Operator | Apr 2024 |
| 9 | Blue Star Energy, Inc. | Shawnee, OK 74802 | Oil & Gas Operator | Apr 2024 |
| 10 | Blue Star Operating Company | Kilgore, TX 75663 | Oil & Gas Operator | Apr 2024 |
| 11 | Bollinger Drilling Co. | Del Rio, TX 78840 | Oil Operator | Apr 2024 |
| 12 | Bommer Engineering Co. | San Antonio, TX 78260 | Oil & Gas Operator | Apr 2024 |
| 13 | Botasch Operating, LLC | Dilley, TX 78017 | Oil & Gas Operator | Apr 2024 |
| 14 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Dec 2023 |
| 15 | BP Prod. Corp. | Richardson, TX 75083 | Oil & Gas Operator | Apr 2024 |
| 16 | BP Products North America Inc | Houston, TX 77094 | Gas Operator | Jan 2017 |
| 17 | BPX Operating Company | Denver, CO 80202 | Oil & Gas Operator | Apr 2024 |
| 18 | Brazos Petroleum, Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2024 |
| 19 | Bridger Oil Inc. | Richmond, TX 77406 | Oil & Gas Operator | Apr 2024 |
| 20 | Brooks, E. B., Jr. | Dallas, TX 75206 | Oil & Gas Operator | May 2018 |
| 21 | Brown, C. Douglas, LLC | Dallas, TX 75209 | Oil & Gas Operator | Dec 2005 |
| 22 | Brown, John Oil Co. | Eagle Pass, TX 78852 | Oil & Gas Operator | Apr 2024 |
| 23 | Brymer Contracting Incorporated | Pleasanton, TX 78064 | Oil & Gas Operator | Apr 2024 |
| 24 | Brymer, Jack Contr. Serv. | George West, TX 78022 | Oil Operator | Apr 2024 |
| 25 | Buffco Production, Inc. | Longview, TX 75606 | Oil & Gas Operator | Apr 2024 |
| 26 | Burk Royalty Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Jan 2002 |
| 27 | BXP Operating, LLC | Houston, TX 77079 | Oil & Gas Operator | Apr 2024 |