| 1 | C & M Exploration LLC | Tulsa, OK 74159-1331 | Oil & Gas Operator | Jun 2014 |
| 2 | Cambrian Management LTD | McCaulley, TX 79534 | Oil & Gas Operator | May 2024 |
| 3 | Caraway Operating Co. | San Angelo, TX 76902 | Oil & Gas Operator | May 2024 |
| 4 | Cardwell Oil Corporation | Midland, TX 79710 | Oil & Gas Operator | May 2024 |
| 5 | Cass Energy Corp | Dallas, TX 75225 | Oil & Gas Operator | Aug 2003 |
| 6 | Cedar Oil Company | Midland, TX 79707 | Oil & Gas Operator | May 2024 |
| 7 | Central Texas Operating, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | May 2024 |
| 8 | Chaparral Energy, L.L.C. | Oklahoma City, OK 73142 | Oil & Gas Operator | May 2024 |
| 9 | Chesapeake Operating, Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Jan 2024 |
| 10 | Chevron Midcontinent, L.P. | Midland, TX 79706 | Oil & Gas Operator | May 2024 |
| 11 | Cimarex Energy Co. Of Colorado | Midland, TX 79706 | Oil & Gas Operator | May 2024 |
| 12 | Clear Water Inc. | Midland, TX 79710 | Oil & Gas Operator | May 2024 |
| 13 | Coastal Oil & Gas Corporation | Houston, TX 77252 | Oil & Gas Operator | Dec 2009 |
| 14 | Cobra Oil & Gas Corporation | Wichita Falls, TX 76307 | Oil & Gas Operator | May 2024 |
| 15 | Coda Energy, Inc. | Dallas, TX 75231 | Oil & Gas Operator | Aug 1998 |
| 16 | COG Operating LLC | Midland, TX 79701 | Oil & Gas Operator | May 2024 |
| 17 | Collins & Ware, Inc. | Midland, TX 79701 | Oil & Gas Operator | Aug 2003 |
| 18 | Compass Energy Operating, LLC | Tulsa, OK 74136 | Oil & Gas Operator | May 2024 |
| 19 | Comstock Energy, LLC | Wichita Falls, TX 76301 | Oil & Gas Operator | May 2024 |
| 20 | Comstock Oil & Gas, Inc. | Frisco, TX 75034 | Oil & Gas Operator | Dec 2012 |
| 21 | Comstock Oil & Gas, LP | Frisco, TX 75034 | Oil & Gas Operator | Aug 2019 |
| 22 | Concho Exploration Inc | Oklahoma City, OK 73154 | Oil & Gas Operator | Mar 2015 |
| 23 | Concho Oilfield Serv & Oper Co. | Eden, TX 76837 | Oil & Gas Operator | May 2024 |
| 24 | Concho Resources Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Mar 2004 |
| 25 | Conoco Inc. | Houston, TX 77252 | Oil & Gas Operator | Mar 2015 |
| 26 | ConocoPhillips Company | Midland, TX 79701 | Oil & Gas Operator | May 2024 |
| 27 | Consolidated Oil & Gas Inc | Wichita, KS 67202 | Oil & Gas Operator | Dec 2012 |
| 28 | Coppertop | San Angelo, TX 76904 | Oil & Gas Operator | May 2024 |
| 29 | Core E & P Corp. | Victoria, TX 77902 | Oil & Gas Operator | May 2024 |
| 30 | Core Petro, LLC | Abilene, TX 79608 | Oil & Gas Operator | May 2024 |
| 31 | Costilla Energy Inc | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 32 | Costilla Petroleum Corporation | Midland, TX 79702 | Oil & Gas Operator | Mar 2015 |
| 33 | Cox, John L. | Midland, TX 79702 | Oil & Gas Operator | Mar 2015 |
| 34 | Custer & Wright Operating, Inc. | Midland, TX 79702 | Oil & Gas Operator | May 2024 |