| 1 | B & D Enterprises | Breckenridge, TX 76424 | Oil & Gas Operator | Mar 2014 |
| 2 | B-Tech. Pet., Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Jan 2005 |
| 3 | B.O.L.D. Oil And Gas, LLC | Graham, TX 76450 | Oil & Gas Operator | Jul 2025 |
| 4 | B.R.H. Investments, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Apr 1998 |
| 5 | Bacon Energy | Cisco, TX 76437 | Oil & Gas Operator | Jul 2025 |
| 6 | Ball Producing Co. | Eastland, TX 76448 | Oil & Gas Operator | Jul 2025 |
| 7 | Ballou Enterprises, Inc. | Horseshoe Bay, TX 78657 | Oil & Gas Operator | Jan 1997 |
| 8 | Bam Operating, Inc. | Eastland, TX 76448 | Oil & Gas Operator | Nov 2014 |
| 9 | Bandera Petroleum, Inc. | Abilene, TX 79606 | Oil & Gas Operator | Nov 2018 |
| 10 | Bankhead E & P LLC | Farmers BRNCH, TX 75234 | Oil & Gas Operator | Jul 2025 |
| 11 | Bankhead Operating Corp. | Wichita Falls, TX 76307 | Oil & Gas Operator | Jul 2025 |
| 12 | Bara Corporation | Flower Mound, TX 75027 | Oil & Gas Operator | Apr 2004 |
| 13 | Barron Petroleum LLC | San Antonio, TX 78205 | Oil & Gas Operator | Jul 2025 |
| 14 | Basa Resources, Inc. | Dallas, TX 75254 | Oil & Gas Operator | Jul 2025 |
| 15 | Baseline Oil & Gas Corp. | Houston, TX 77267 | Oil & Gas Operator | Oct 2010 |
| 16 | Bass Operating Co., Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 1999 |
| 17 | Belco Energy Corp. | Dallas, TX 75231 | Oil & Gas Operator | Mar 2015 |
| 18 | Belcor Inc. | Irvine, CA 92714 | Oil & Gas Operator | Nov 2000 |
| 19 | Bendorf Services & Supply Co | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2000 |
| 20 | Bendorf, Otto Trust | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2000 |
| 21 | Bentley Oil & Gas Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Jul 2025 |
| 22 | Bettis, Boyle & Stovall | Graham, TX 76450 | Oil & Gas Operator | Jul 2025 |
| 23 | Bilmac Oil Co., Inc. | Abilene, TX 79601 | Oil & Gas Operator | Jul 2025 |
| 24 | Black Bandana LLC | Santo, TX 76472 | Oil & Gas Operator | Jul 2025 |
| 25 | Black Star Oil Company | Plano, TX 75094 | Oil & Gas Operator | Jul 2025 |
| 26 | Bloxom, John Tom | Breckenridge, TX 76424 | Oil & Gas Operator | Sep 2007 |
| 27 | Blue Wing Energy, Inc. | Portland, TX 78374 | Oil & Gas Operator | Jul 2025 |
| 28 | Boo-Row Pipe & Supply, Inc. | Albany, TX 76430 | Oil & Gas Operator | Jan 2007 |
| 29 | Boondocks Solutions LLC | Tomball, TX 77375 | Oil & Gas Operator | Jul 2025 |
| 30 | Borderline Operating Corp. | Graham, TX 76450 | Oil & Gas Operator | Jul 2025 |
| 31 | BP Prod. Corp. | Richardson, TX 75083 | Oil & Gas Operator | Jul 2025 |
| 32 | Braka Operating, L.L.C. | Ranger, TX 76470 | Oil & Gas Operator | Jul 2025 |
| 33 | Brazos River Exploration LLC | Houston, TX 77008 | Oil & Gas Operator | Oct 2024 |
| 34 | Breck Operating Corp. | Breckenridge, TX 76424 | Oil & Gas Operator | Apr 2025 |
| 35 | Brico Oil, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 2025 |
| 36 | Bridwell Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Jul 2025 |
| 37 | Brightman, Tom | Graham, TX 76450 | Oil & Gas Operator | Jul 2025 |
| 38 | Brighton Energy LLC | Tulsa, OK 74170 | Oil & Gas Operator | Mar 2015 |
| 39 | Bristol Resources Corporation | Tulsa, OK 74170 | Oil & Gas Operator | Feb 2022 |
| 40 | Brittany Drilling Co. | Abilene, TX 79604 | Oil & Gas Operator | Dec 2000 |
| 41 | Britton Operating, Inc. | Aledo, TX 76008 | Oil & Gas Operator | Jul 2025 |
| 42 | Brogdon, Gary | Graham, TX 76450 | Oil & Gas Operator | Dec 2009 |
| 43 | Brower Oil & Gas Co., Inc. | Graham, TX 76450 | Oil & Gas Operator | Jul 2025 |
| 44 | Brower, Robert C. | Fort Worth, TX 76116 | Oil & Gas Operator | Jul 2025 |
| 45 | Brown, Edmond | Loving, TX 76460 | Oil & Gas Operator | Dec 2017 |
| 46 | Brown-Wiley Producing | Breckenridge, TX 76424 | Oil & Gas Operator | Jan 2008 |
| 47 | Bruce Operating Account | Graham, TX 76450 | Oil & Gas Operator | Aug 2003 |
| 48 | Buck Wheat Resources, L.P. | Eastland, TX 76448 | Oil & Gas Operator | Jul 2025 |
| 49 | Bud Oil, Inc. | Duncan, OK 73534 | Oil & Gas Operator | Jul 2025 |
| 50 | Bulwark Oil & Gas, LLC | Graham, TX 76450 | Oil & Gas Operator | Jul 2025 |
| 51 | Burgess Energy, Inc. | South Bend, TX 76481 | Oil & Gas Operator | Jul 2025 |
| 52 | Burgess, Sim E. | Graham, TX 76450 | Oil & Gas Operator | Jul 2025 |
| 53 | Burgess, W. E. | Fort Worth, TX 76147 | Oil & Gas Operator | Jul 2025 |
| 54 | Burk Royalty Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Jan 2002 |
| 55 | Burnett Oil Co Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Jul 2025 |
| 56 | Burton Services, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 2025 |
| 57 | Bustamante Resources LLC | Midland, TX 79710 | Oil & Gas Operator | Jul 2025 |
| 58 | Byrne, Robert E. | Lubbock, TX 79416 | Oil & Gas Operator | Jan 2005 |