| 1 | C. W. Resources, Inc. | Longview, TX 75604 | Oil & Gas Operator | Oct 2025 |
| 2 | Cabana Oil Corp. | Abilene, TX 79608 | Oil & Gas Operator | Feb 2006 |
| 3 | Calhoun & Ellison Oil Co. | San Antonio, TX 78248 | Oil & Gas Operator | Dec 1997 |
| 4 | Caminar Oil & Gas, LLC | Abilene, TX 79602 | Oil & Gas Operator | Aug 2024 |
| 5 | Can-Tex Energy Corp. | Dallas, TX 75231 | Oil & Gas Operator | Nov 2003 |
| 6 | Cannon Operating Company LLC | Garland, TX 75043 | Oil Operator | Oct 2025 |
| 7 | Cardinal Producing Co. | Abilene, TX 79606 | Oil & Gas Operator | Aug 2003 |
| 8 | Carl Oil & Gas Co. | Bakersfield, CA 93309 | Oil & Gas Operator | Dec 1995 |
| 9 | Carr Exploration Corp. | Dallas, TX 75225 | Oil & Gas Operator | Aug 2003 |
| 10 | Carrland Oil & Gas Inc. | Prosper, TX 75078 | Oil & Gas Operator | Oct 2025 |
| 11 | Carroll Operating, LLC | Abilene, TX 79608 | Oil & Gas Operator | Feb 2022 |
| 12 | CD Consulting & Operating Co. | Bridgeport, TX 76426 | Oil & Gas Operator | Oct 2025 |
| 13 | CDJ Oil Co. | Albany, TX 76430 | Oil & Gas Operator | Oct 2025 |
| 14 | Cedar Oil Company | Midland, TX 79707 | Oil & Gas Operator | Oct 2025 |
| 15 | Cedar Ridge Energy, Inc. | Coleman, TX 76834 | Oil & Gas Operator | Oct 2025 |
| 16 | Centaur Petroleum Corporation | Fort Worth, TX 76101 | Oil & Gas Operator | Oct 2025 |
| 17 | Central Basin Oil Inv. Inc. | Southlake, TX 76092 | Oil & Gas Operator | Oct 2025 |
| 18 | Chalmers Exploration Company | Abilene, TX 79608 | Oil & Gas Operator | Apr 1997 |
| 19 | Chambers, R. H. | Abilene, TX 79606 | Oil & Gas Operator | Apr 2006 |
| 20 | Chan West Oil Corporation | Irving, TX 75016 | Oil & Gas Operator | Oct 2025 |
| 21 | Chancellor, Earl Sales Co., Inc. | Sweetwater, TX 79556 | Oil & Gas Operator | Oct 2025 |
| 22 | Chestnut Mountain Energy, LLC | Fort Worth, TX 76101 | Oil & Gas Operator | Oct 2025 |
| 23 | Chisholm Exploration | Abilene, TX 79604 | Oil & Gas Operator | Oct 2025 |
| 24 | Chisholm Operating, Inc. | Abilene, TX 79606 | Oil & Gas Operator | Oct 2025 |
| 25 | Cholla Petroleum Inc | Dallas, TX 75225 | Oil & Gas Operator | Oct 2025 |
| 26 | Cico Oil & Gas Company | Houston, TX 77057 | Oil & Gas Operator | Aug 2019 |
| 27 | Circle Ridge Production, Inc. | Graham, TX 76450 | Oil & Gas Operator | Oct 2025 |
| 28 | Clear Fork, Incorporated | Abilene, TX 79604 | Oil & Gas Operator | Oct 2025 |
| 29 | Co Energy | Benbrook, TX 76126 | Oil & Gas Operator | Oct 2025 |
| 30 | Coda Energy, Inc. | Dallas, TX 75231 | Oil & Gas Operator | Aug 1998 |
| 31 | Coleman & Johnson Oil Company | Brownwood, TX 76801 | Oil & Gas Operator | Oct 2025 |
| 32 | Colo Construction Co., Inc. | Abilene, TX 79602 | Oil Operator | Apr 2004 |
| 33 | Colo Exploration Company, Inc. | Benbrook, TX 76126 | Oil & Gas Operator | Oct 2025 |
| 34 | Colt Oil & Gas Co. | Abilene, TX 79601 | Oil Operator | Apr 2004 |
| 35 | Concho Oilfield Service, Inc. | Albany, TX 76430 | Oil & Gas Operator | Apr 2013 |
| 36 | Continual Oil & Gas, Inc. | Abilene, TX 79602 | Oil & Gas Operator | Oct 2025 |
| 37 | Cooper Oil & Gas, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Oct 2025 |
| 38 | Coral E&P, LLC | Adkins, TX 78101 | Oil & Gas Operator | Oct 2025 |
| 39 | Cottonwood Petroleum Co. | Abilene, TX 79603 | Oil & Gas Operator | Jun 2009 |
| 40 | Couch Oil & Gas, Inc. | Dallas, TX 75229 | Oil & Gas Operator | Oct 2025 |
| 41 | Cox Engineering, LLC | Abilene, TX 79605 | Oil Operator | Mar 2006 |
| 42 | Crego Exploration | Dallas, TX 75243 | Oil & Gas Operator | Oct 2025 |
| 43 | Crescent Exploration Company | Austin, TX 78767 | Oil & Gas Operator | Aug 1995 |
| 44 | Crosstex Services, L.L.C. | Tuscola, TX 79562 | Oil Operator | Oct 2025 |
| 45 | Crown Equipment Co. | Weatherford, TX 76086 | Oil & Gas Operator | Oct 2025 |
| 46 | CRT'S, Inc. | Abilene, TX 79605 | Oil & Gas Operator | Aug 2008 |
| 47 | Cuatro Oil And Gas Corporation | Abilene, TX 79603 | Oil & Gas Operator | Oct 2025 |
| 48 | Cwic, Inc. | Granbury, TX 76049 | Oil & Gas Operator | Oct 2025 |
| 49 | Cwo Energy, LLC | Midland, TX 79705 | Oil Operator | Oct 2025 |