| 1 | Bagley, Roy | Magnolia, TX 77354 | Oil & Gas Operator | Oct 2025 |
| 2 | Ballard Exploration Company,Inc. | Houston, TX 77002 | Oil & Gas Operator | Oct 2025 |
| 3 | Bataa Oil Inc | Arvada, CO 80005 | Oil & Gas Operator | Aug 2025 |
| 4 | Baxter, Kelly H. | Austin, TX 78767 | Oil & Gas Operator | Mar 2008 |
| 5 | Baxter, Kelly H. Oil And Gas Co. | Austin, TX 78767 | Oil & Gas Operator | Nov 2010 |
| 6 | BDH Technology, Inc. | Conroe, TX 77304 | Oil & Gas Operator | Mar 2001 |
| 7 | Beck Resources Incorporated | Hennessey, OK 73742 | Oil & Gas Operator | Jun 2025 |
| 8 | Benchmark Oil & Gas Co. | Houston, TX 77282 | Oil & Gas Operator | Oct 2025 |
| 9 | Bettis, Boyle & Stovall | Graham, TX 76450 | Oil & Gas Operator | Oct 2025 |
| 10 | BHP Petroleum (Americas) Inc | Houston, TX 77056 | Oil & Gas Operator | Mar 2015 |
| 11 | Big Easy Operating Company | Houston, TX 77056 | Oil & Gas Operator | Aug 2003 |
| 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 | Block "T" Petroleum, Inc. | Tyler, TX 75707 | Oil & Gas Operator | Oct 2025 |
| 15 | Bomco USA, Inc. | Sugar Land, TX 77496 | Oil Operator | Oct 2025 |
| 16 | Bommer Engineering Co. | San Antonio, TX 78260 | Oil & Gas Operator | Oct 2025 |
| 17 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Jun 2025 |
| 18 | Brammer Engineering, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Oct 2025 |
| 19 | Brazos Petroleum, Inc. | Graham, TX 76450 | Oil & Gas Operator | Oct 2025 |
| 20 | Bridge Oil Company LP | Midland, TX 79702 | Oil & Gas Operator | May 1999 |
| 21 | Bridge Oil Production Co., Inc. | Midland, TX 79702 | Oil & Gas Operator | Jun 1993 |
| 22 | Brooklyn Union Explor. Co., Inc. | Houston, TX 77010 | Oil & Gas Operator | Jan 1994 |
| 23 | Buffco Production, Inc. | Longview, TX 75606 | Oil & Gas Operator | Oct 2025 |
| 24 | Burk Royalty Co., LTD. | Wichita Falls, TX 76308 | Oil & Gas Operator | Oct 2025 |
| 25 | Burlington Resources O&G | Midland, TX 79710-1810 | Oil & Gas Operator | Mar 1997 |
| 26 | Buttes Resources Company | Houston, TX 77056 | Oil & Gas Operator | May 2007 |