| 1 | C6 Operating, L.L.C. | Keatchie, LA 71046 | Oil & Gas Operator | Dec 2024 |
| 2 | Cbmoncrief Operating, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2024 |
| 3 | Cci Gulf Coast Upstream LLC | Teague, TX 75860 | Oil & Gas Operator | Mar 2021 |
| 4 | CD Consulting & Operating Co. | Bridgeport, TX 76426 | Oil & Gas Operator | Dec 2024 |
| 5 | Cemco Oil | Corsicana, TX 75110 | Oil & Gas Operator | Dec 2024 |
| 6 | CH4 Energy II LLC | Fort Worth, TX 76109 | Oil & Gas Operator | Apr 2018 |
| 7 | CH4 Energy LLC | Fort Worth, TX 76102 | Oil & Gas Operator | May 2006 |
| 8 | CH4 Energy Six, LLC | Fort Worth, TX 76109 | Oil & Gas Operator | Dec 2024 |
| 9 | Chase Energy, Inc. | Austin, TX 78763 | Oil & Gas Operator | Oct 2001 |
| 10 | Chesapeake Operating, Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Aug 2024 |
| 11 | Chesapeake Operating, LLC | Oklahoma City, OK 73154 | Oil & Gas Operator | Dec 2024 |
| 12 | Chevron USA Inc | Midland, TX 79706 | Oil & Gas Operator | Dec 2024 |
| 13 | China Star Oil Co., LLC | Woodway, TX 76712 | Oil & Gas Operator | Jun 2010 |
| 14 | Circle-S Energy, LLC | McKinney, TX 75071 | Oil & Gas Operator | Dec 2024 |
| 15 | CL&F Operating LLC | Spring, TX 77389 | Oil & Gas Operator | Dec 2022 |
| 16 | Clay Exploration, Inc. | Spring, TX 77387 | Oil & Gas Operator | Jun 2019 |
| 17 | Cobalt Energy LLC | Wichita, KS 67202 | Oil & Gas Operator | Aug 2024 |
| 18 | Comstock Oil & Gas, Inc. | Frisco, TX 75034 | Oil & Gas Operator | Dec 2012 |
| 19 | Comstock Oil & Gas, LLC | Frisco, TX 75034 | Oil & Gas Operator | Dec 2024 |
| 20 | Comstock Oil & Gas, LP | Frisco, TX 75034 | Oil & Gas Operator | Aug 2019 |
| 21 | ConocoPhillips Company | Midland, TX 79701 | Oil & Gas Operator | Dec 2024 |
| 22 | Consolidated Oil & Gas Inc | Wichita, KS 67202 | Oil & Gas Operator | Dec 2012 |
| 23 | Costilla Energy Inc | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 24 | Costilla Petroleum Corporation | Midland, TX 79702 | Oil & Gas Operator | Mar 2015 |
| 25 | Cotton Valley Resources, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Dec 2024 |
| 26 | Craton Operating LLC | Bellaire, TX 77401 | Oil & Gas Operator | Dec 2024 |
| 27 | Crescent Pass Energy, LLC | Houston, TX 77070 | Oil & Gas Operator | Dec 2024 |
| 28 | Cross Timbers Operating Co | Fort Worth, TX 76102 | Oil & Gas Operator | Aug 2024 |
| 29 | Crow, David | Shreveport, LA 71106 | Oil & Gas Operator | May 2001 |
| 30 | Culver & Cain Production LLC | Tyler, TX 75711 | Oil & Gas Operator | Dec 2024 |