| 1 | C.J. Oil Company | Iowa Park, TX 76367 | Oil Operator | Jan 2025 |
| 2 | Canan Operating, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Feb 2026 |
| 3 | Cantrell Oil Co. | Elbert, TX 76359 | Oil & Gas Operator | Aug 2003 |
| 4 | Canyon Reef Brine LLC | Snyder, TX 79550 | Oil Operator | Feb 2026 |
| 5 | Capco Resources Of Texas, Inc | Irving, TX 75063 | Oil & Gas Operator | Jun 2003 |
| 6 | Carburante Exploration Co, LTD. | Granbury, TX 76048 | Oil & Gas Operator | Feb 2026 |
| 7 | Carloran Production Corp | Windthorst, TX 76389 | Oil & Gas Operator | Feb 2026 |
| 8 | Carrizo Oil & Gas, Inc. | Houston, TX 77002 | Oil & Gas Operator | Feb 2026 |
| 9 | Casador Oil & Gas Co. | Keller, TX 76248 | Gas Operator | Aug 2003 |
| 10 | Case Oil | Burkburnett, TX 76354 | Oil & Gas Operator | Feb 2026 |
| 11 | Case, C. W. | Wichita Falls, TX 76308 | Oil & Gas Operator | Feb 2026 |
| 12 | Cassity Company | Wichita Falls, TX 76309 | Oil & Gas Operator | Jul 2013 |
| 13 | Catlin, Randy | Iowa Park, TX 76367 | Oil Operator | Feb 2026 |
| 14 | CD Consulting & Operating Co. | Bridgeport, TX 76426 | Oil & Gas Operator | Feb 2026 |
| 15 | Cegx Of Texas LLC | Eastland, TX 76448 | Oil Operator | Mar 2018 |
| 16 | Century Resources, Inc. | Houston, TX 77056 | Oil & Gas Operator | Feb 2026 |
| 17 | Chan West Oil Corporation | Irving, TX 75016 | Oil & Gas Operator | Feb 2026 |
| 18 | Chance Oil Co., Inc. | Vernon, TX 76385 | Oil & Gas Operator | Nov 2025 |
| 19 | Chardonnay Operating, Inc. | Olney, TX 76374 | Oil & Gas Operator | Dec 1996 |
| 20 | Chasla Energy, LLC | Iowa Park, TX 76367 | Oil Operator | Feb 2026 |
| 21 | Cheatham, W. C. | Olney, TX 76374 | Oil & Gas Operator | Feb 2002 |
| 22 | Chek Oil Co. | Midland, TX 79708 | Oil & Gas Operator | May 2019 |
| 23 | Chek Oil Co., LLC | Midland, TX 79704 | Oil Operator | Feb 2026 |
| 24 | Chesapeake Operating, Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Sep 2025 |
| 25 | Chesher Oil Company | Holliday, TX 76366 | Oil Operator | Feb 2026 |
| 26 | Chesher, Robert | Holliday, TX 76366 | Oil & Gas Operator | Dec 1995 |
| 27 | Chital Petroleum Corp. | Wichita Falls, TX 76308 | Oil & Gas Operator | Feb 2000 |
| 28 | Cholla Petroleum Inc | Dallas, TX 75225 | Oil & Gas Operator | Feb 2026 |
| 29 | Christie, C. B., Jr. | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 2014 |
| 30 | Citori Oil Company, LLC | Wichita Falls, TX 76308 | Oil & Gas Operator | May 2014 |
| 31 | CK Operating Company, LLC | Wichita Falls, TX 76308 | Oil Operator | Feb 2026 |
| 32 | Clark Operating | Wichita Falls, TX 76308 | Oil & Gas Operator | Aug 2003 |
| 33 | Clark Operating Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Feb 2026 |
| 34 | Cleo Oil, Inc. | Olney, TX 76374 | Oil & Gas Operator | May 1997 |
| 35 | Cleveland Oil & Gas | Wichita Falls, TX 76308 | Oil Operator | Feb 2026 |
| 36 | Clifton, B.W. | Graham, TX 76450 | Oil & Gas Operator | Mar 2000 |
| 37 | CLM Operating | Graham, TX 76450 | Oil & Gas Operator | Aug 2017 |
| 38 | Cobra Oil & Gas Corporation | Wichita Falls, TX 76307 | Oil & Gas Operator | Feb 2026 |
| 39 | Coker, Tom | Seymour, TX 76380 | Oil & Gas Operator | Sep 2006 |
| 40 | Cole, Frank W Engineering | Dallas, TX 75254 | Oil & Gas Operator | Mar 2006 |
| 41 | Collier Oil Field Services Inc | Iowa Park, TX 76367 | Oil & Gas Operator | Feb 2026 |
| 42 | Collier, Scott Inc. | Holliday, TX 76366 | Oil Operator | May 2003 |
| 43 | Colotex Operating, LLC | Aurora, CO 80015 | Oil & Gas Operator | Feb 2026 |
| 44 | Comanche Well Service Corp. | Plano, TX 75093 | Oil & Gas Operator | Feb 2026 |
| 45 | Comstock Energy, LLC | Wichita Falls, TX 76301 | Oil & Gas Operator | Feb 2026 |
| 46 | Concord Operating Incorporated | Horseshoe Bay, TX 78657 | Oil & Gas Operator | Dec 2008 |
| 47 | Cook D L | Holliday, TX 76366 | Oil & Gas Operator | Dec 2008 |
| 48 | Cooper Oil & Gas, Inc. | Fort Worth, TX 76102 | Oil & Gas Operator | May 2010 |
| 49 | Cooper Oil & Gas, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Feb 2026 |
| 50 | Cooper Operating | Olney, TX 76374 | Oil Operator | Apr 2007 |
| 51 | Corda Corporation | Wichita Falls, TX 76308 | Oil & Gas Operator | Feb 2026 |
| 52 | Cottonwood Petroleum Co. | Abilene, TX 79603 | Oil & Gas Operator | Jun 2009 |
| 53 | Covenant Oil Company | Houma, LA 70360 | Oil & Gas Operator | Dec 2015 |
| 54 | Cox Operating Co. | Wichita Falls, TX 76310 | Oil & Gas Operator | Jun 2000 |
| 55 | Cox, H. L. | Wichita Falls, TX 76307 | Oil & Gas Operator | Jan 2011 |
| 56 | Craft Resources, Inc. | Weston, TX 75097 | Oil & Gas Operator | Aug 2003 |
| 57 | Craig, Bob | Olney, TX 76374 | Oil & Gas Operator | Feb 2026 |
| 58 | Craig, Carl | Olney, TX 76374 | Oil & Gas Operator | Feb 2026 |
| 59 | Craig, Robert A. | Olney, TX 76374 | Oil Operator | Feb 2026 |
| 60 | Crampton, Freddie | Holliday, TX 76366 | Oil & Gas Operator | Feb 2026 |
| 61 | Crenshaw, K. M. | Wichita Falls, TX 76308 | Oil & Gas Operator | Aug 2018 |
| 62 | Creswell, Chris | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 63 | Crocker Oil Company | Windthorst, TX 76389 | Oil & Gas Operator | Aug 1999 |
| 64 | Croker, Danny | Wichita Falls, TX 76302 | Oil & Gas Operator | Feb 2026 |
| 65 | Crutcher Oil Properties | Wichita Falls, TX 76301 | Oil & Gas Operator | Feb 2026 |
| 66 | Cso Consulting | Bridgeport, TX 76426 | Oil & Gas Operator | Mar 2020 |
| 67 | Cuba, John H. | Olney, TX 76374 | Oil Operator | Feb 2026 |
| 68 | Cumming Company, Inc. The | Fort Worth, TX 76116 | Oil & Gas Operator | Feb 2026 |
| 69 | CVS Operating, LLC. | Plano, TX 75074 | Oil & Gas Operator | Feb 2026 |
| 70 | CWD Resources, LLC | Kilgore, TX 75663 | Oil Operator | Feb 2026 |