| 1 | B.R.H. Investments, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Apr 1998 |
| 2 | Barbee, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Mar 2008 |
| 3 | Baron Energy Inc. | San Marcos, TX 78666 | Oil & Gas Operator | Oct 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 | Bayou Operating Company, Inc. | Abilene, TX 79602 | Oil & Gas Operator | Oct 2025 |
| 7 | Bayridge Texas Corp. | Big Spring, TX 79720 | Oil & Gas Operator | Jul 2004 |
| 8 | Beaird, R.A. Oil Operating Co. | Merkel, TX 79536 | Oil & Gas Operator | Oct 2025 |
| 9 | Beasley Well Service Inc. | Tuscola, TX 79562 | Oil Operator | Oct 2025 |
| 10 | Beeda Oil Company | Merkel, TX 79536 | Oil & Gas Operator | Oct 2025 |
| 11 | Bell, Johnny Inc. | Abilene, TX 79604 | Oil & Gas Operator | Oct 2025 |
| 12 | Bell, O. M. | Merkel, TX 79536 | Oil & Gas Operator | Mar 2008 |
| 13 | Benson & Schoen Oil Co., Inc. | Abilene, TX 79602 | Oil & Gas Operator | Apr 2012 |
| 14 | Bent Oak Energy Interests, LLC | Houston, TX 77024 | Oil Operator | Oct 2014 |
| 15 | Berry Energy Companies | Abilene, TX 79608 | Oil & Gas Operator | Oct 2025 |
| 16 | Beta-Tex, An Oklahoma Corp. | Oklahoma City, OK 73157 | Oil & Gas Operator | Aug 2024 |
| 17 | Bettis, Boyle & Stovall | Graham, TX 76450 | Oil & Gas Operator | Oct 2025 |
| 18 | Bishop, E.J. | Winters, TX 79567 | Oil & Gas Operator | May 1997 |
| 19 | Blackrock Drilling, LLC | Abilene, TX 79606 | Oil Operator | Oct 2025 |
| 20 | Blackshear, Charley | Winters, TX 79567 | Oil & Gas Operator | Oct 1998 |
| 21 | Blue Ridge Resources, LLC | Midland, TX 79710 | Oil & Gas Operator | Oct 2025 |
| 22 | Bluff Creek Petroleum, LLC | Abilene, TX 79603 | Oil & Gas Operator | Oct 2025 |
| 23 | Bo Dunagin Operating, LLC | Merkel, TX 79536 | Oil Operator | Mar 2019 |
| 24 | Bob Hughes Oil Company, LLC | San Angelo, TX 76901 | Oil & Gas Operator | Oct 2025 |
| 25 | Bohanan Oil Co. | Gordonville, TX 76245 | Oil & Gas Operator | Oct 2025 |
| 26 | Bomar Oil & Gas, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Dec 2020 |
| 27 | Boondocks Solutions LLC | Tomball, TX 77375 | Oil & Gas Operator | Oct 2025 |
| 28 | Borden, Roland Inc. | Abilene, TX 79608 | Oil & Gas Operator | Oct 2025 |
| 29 | Borders, Delbert L. Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Feb 2019 |
| 30 | BP Prod. Corp. | Richardson, TX 75083 | Oil & Gas Operator | Oct 2025 |
| 31 | Brammer Supply Inc | Gainesville, TX 76240 | Oil & Gas Operator | Nov 2014 |
| 32 | Branch Productions | Graham, TX 76450 | Oil & Gas Operator | May 2019 |
| 33 | Brandt, Bodie | Iowa Park, TX 76367 | Oil & Gas Operator | Oct 2025 |
| 34 | Breck Operating Corp. | Breckenridge, TX 76424 | Oil & Gas Operator | Jun 2025 |
| 35 | Breitling Operating Corporation | Dallas, TX 75201 | Oil & Gas Operator | Aug 2016 |
| 36 | Bridwell Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Oct 2025 |
| 37 | Bristol Resources Corporation | Tulsa, OK 74170 | Oil & Gas Operator | Feb 2022 |
| 38 | Brittany Drilling Co. | Abilene, TX 79604 | Oil & Gas Operator | Dec 2000 |
| 39 | Brock Oil & Gas Corporation | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2019 |
| 40 | Brock Resources, Inc. | New Orleans, LA 70112 | Oil & Gas Operator | Nov 1998 |
| 41 | Bullet Development, LLC | Abilene, TX 79601 | Oil & Gas Operator | Oct 2025 |
| 42 | Burger, F.W. Inc. | Abilene, TX 79604 | Oil & Gas Operator | Mar 2008 |
| 43 | Burk Royalty Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Jan 2002 |
| 44 | Burnett Oil Co Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Oct 2025 |
| 45 | Burns, P. C. Oil Producers Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 2000 |
| 46 | Bustamante Oil Company | Midland, TX 79710 | Oil & Gas Operator | Oct 2025 |
| 47 | Bustamante Resources LLC | Midland, TX 79710 | Oil & Gas Operator | Oct 2025 |
| 48 | Byrne Oil Company | Lubbock, TX 79424 | Oil & Gas Operator | Oct 2025 |