| 2601 | Cougar Oil & Gas Co., Inc. | Houston, TX 77269 | Oil & Gas Operator | Mar 2008 |
| 2602 | Cougar Oil, Inc. | Henderson, TX 75653 | Oil & Gas Operator | Jun 2009 |
| 2603 | County Management, Inc. | Houston, TX 77055 | Oil & Gas Operator | Apr 1993 |
| 2604 | Couroil, Inc. | Perryton, TX 79070 | Oil & Gas Operator | Sep 2000 |
| 2605 | Courson Oil & Gas, Inc. | Perryton, TX 79070 | Oil & Gas Operator | Feb 2026 |
| 2606 | Courson, Harold D. | Perryton, TX 79070 | Oil & Gas Operator | Aug 1998 |
| 2607 | Cove Petroleum Corporation | Shreveport, LA 71101 | Oil & Gas Operator | Jun 2020 |
| 2608 | Covenant Oil & Gas, L.P. | Houston, TX 77057 | Oil & Gas Operator | Dec 2006 |
| 2609 | Covenant Oil Company | Houma, LA 70360 | Oil & Gas Operator | Dec 2015 |
| 2610 | Covenant Operating, LLC | Wichita Falls, TX 76308 | Oil Operator | Feb 2026 |
| 2611 | Covenant Production Co., L.C. | Midland, TX 79702 | Oil & Gas Operator | Nov 2002 |
| 2612 | Covey Park Operating LLC | Dallas, TX 75225 | Oil & Gas Operator | Aug 2019 |
| 2613 | Covey Park Resources LLC | Frisco, TX 75034 | Oil & Gas Operator | Aug 2019 |
| 2614 | Cowboys Resources Corp. | New Braunfels, TX 78132 | Oil Operator | Jan 2008 |
| 2615 | Cowrie Energy LLC | Austin, TX 78703 | Oil & Gas Operator | Feb 2026 |
| 2616 | Cox & Perkins Exploration, Inc. | Houston, TX 77057 | Oil & Gas Operator | Feb 2026 |
| 2617 | Cox Engineering, LLC | Abilene, TX 79605 | Oil Operator | Mar 2006 |
| 2618 | Cox Exploration, Inc. | Dallas, TX 75201 | Oil & Gas Operator | Nov 1999 |
| 2619 | Cox Operating Co. | Wichita Falls, TX 76310 | Oil & Gas Operator | Jun 2000 |
| 2620 | Cox Resources Corporation | Dallas, TX 75244 | Oil & Gas Operator | Mar 2015 |
| 2621 | Cox, H. L. | Wichita Falls, TX 76307 | Oil & Gas Operator | Jan 2011 |
| 2622 | Cox, John L. | Midland, TX 79702 | Oil & Gas Operator | Mar 2015 |
| 2623 | Cox, Lee Investments Inc. | Mineral Wells, TX 76067 | Oil & Gas Operator | Feb 2026 |
| 2624 | Cox, Martin Regan | Irving, TX 75014 | Oil & Gas Operator | Feb 2026 |
| 2625 | Cox, Robert G. & Associates,Inc. | Dallas, TX 75225 | Oil & Gas Operator | Feb 1994 |
| 2626 | Coyote Oil Company | Lufkin, TX 75915 | Oil & Gas Operator | Sep 1996 |
| 2627 | Coyote Oil, Inc. | Snyder, TX 79550 | Oil & Gas Operator | Feb 2026 |
| 2628 | Coyote Operating, LLC | Graham, TX 76450 | Oil Operator | Feb 2026 |
| 2629 | Coyote Services, Inc. | Coleman, TX 76834 | Oil & Gas Operator | Mar 2002 |
| 2630 | CP Energy, LLC | Edmond, OK 73034 | Oil Operator | Jul 2025 |
| 2631 | CP Exploration III Operating,LLC | Lafayette, LA 70505 | Oil & Gas Operator | Sep 2023 |
| 2632 | CP Exploration TX Operating LLC | Jacksboro, TX 76458 | Oil & Gas Operator | Apr 2017 |
| 2633 | Cpmak Investments, Inc. | Cross Plains, TX 76443 | Oil Operator | Feb 2026 |
| 2634 | CPX Energy Operating, LLC | Fort Worth, TX 76147 | Oil & Gas Operator | Feb 2026 |
| 2635 | CR Reed Production, Inc. | Gainesville, TX 76241 | Oil Operator | Feb 2026 |
| 2636 | CR2 Energy LLC | Houston, TX 77002 | Oil & Gas Operator | Feb 2026 |
| 2637 | CR3 Operating Company, L.L.C. | Houston, TX 77251 | Oil & Gas Operator | Feb 2026 |
| 2638 | Cra-Gro Crop Service, Inc. | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 2639 | Crabtree And Brown, Inc. | Kermit, TX 79745 | Oil & Gas Operator | Feb 1995 |
| 2640 | Craft Resources, Inc. | Weston, TX 75097 | Oil & Gas Operator | Aug 2003 |
| 2641 | Craig Oil, Inc. | Olney, TX 76374 | Oil Operator | Feb 2026 |
| 2642 | Craig, Bob | Olney, TX 76374 | Oil & Gas Operator | Feb 2026 |
| 2643 | Craig, Carl | Olney, TX 76374 | Oil & Gas Operator | Feb 2026 |
| 2644 | Craig, J. E. G. Estate | Kilgore, TX 75663 | Oil & Gas Operator | Feb 2026 |
| 2645 | Craig, Robert A. | Olney, TX 76374 | Oil Operator | Feb 2026 |
| 2646 | Craig, Wood B Or Monroe, Dianne | Canyon, TX 79015 | Gas Operator | Feb 2026 |
| 2647 | Craig, Wood B. & Bettie | Sunray, TX 79086 | Oil & Gas Operator | Aug 2005 |
| 2648 | Craighead, Ray | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 1998 |
| 2649 | Craighead, Ray Well Service Inc | Wichita Falls, TX 76308 | Oil Operator | Apr 2019 |
| 2650 | Craighead, Robert A. | Electra, TX 76360 | Oil & Gas Operator | Mar 2017 |
| 2651 | Crain Minerals LLC | Oklahoma City, OK 73120-1004 | Oil & Gas Operator | Aug 2014 |
| 2652 | Crampton, Freddie | Holliday, TX 76366 | Oil & Gas Operator | Feb 2026 |
| 2653 | Cranford, Wayne | Electra, TX 76360 | Oil & Gas Operator | Dec 2019 |
| 2654 | Craruth Energy Corporation | Abilene, TX 79602 | Oil & Gas Operator | Feb 2026 |
| 2655 | Craton Energy Company II LLC | Oklahoma City, OK 73154 | Oil & Gas Operator | Dec 2006 |
| 2656 | Craton Energy Corporation | Oklahoma City, OK 73154 | Oil & Gas Operator | Jun 2005 |
| 2657 | Craton Energy Holdings III, LP | Houston, TX 77002 | Oil & Gas Operator | Jul 2009 |
| 2658 | Craton Operating LLC | Bellaire, TX 77401 | Oil & Gas Operator | Feb 2026 |
| 2659 | Cravey, W. H. | Hobbs, NM 88240 | Oil & Gas Operator | Jan 2012 |
| 2660 | Crawford And Cameron Group | Houston, TX 77074 | Oil & Gas Operator | May 1997 |
| 2661 | Crawford Energy Operating Co | Houston, TX 77056 | Oil & Gas Operator | Aug 2008 |
| 2662 | Crawford Energy, Incorporated | Houston, TX 77056 | Oil & Gas Operator | Mar 2008 |
| 2663 | Crawford Hughes Operating Co. | The Woodlands, TX 77380 | Oil & Gas Operator | Feb 2026 |
| 2664 | Crawford Oil Company | Iowa Park, TX 76367 | Oil & Gas Operator | Jul 2001 |
| 2665 | Crawford, Linda | Alice, TX 78332 | Oil Operator | Feb 2026 |
| 2666 | Crawley Petroleum Corporation | Oklahoma City, OK 73102 | Oil & Gas Operator | Feb 2026 |
| 2667 | Crazy Horse Operating LLC | Austin, TX 78731 | Oil & Gas Operator | Feb 2026 |
| 2668 | CRD Operating, LLC | Fort Worth, TX 76116 | Oil & Gas Operator | Feb 2021 |
| 2669 | Creager And Creager Production | Midland, TX 79708 | Oil & Gas Operator | Aug 2003 |
| 2670 | Creamer, Donald R., Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2006 |
| 2671 | Creative Oil & Gas Operating,LLC | Giddings, TX 78942 | Oil & Gas Operator | May 2024 |
| 2672 | Creative Oil And Gas Op II, LLC | Santa Anna, TX 76878 | Oil Operator | Feb 2026 |
| 2673 | Crebbs Oil Company | Batson, TX 77519 | Oil & Gas Operator | Jun 2024 |
| 2674 | Credo Petroleum Corporation | Denver, CO 80202 | Oil & Gas Operator | Jan 2013 |
| 2675 | Creed Operating Co., LLC | Wichita Falls, TX 76301 | Oil & Gas Operator | Feb 2026 |
| 2676 | Creek Energy, Inc. | Brownwood, TX 76804 | Oil & Gas Operator | Feb 2026 |
| 2677 | Creek Operating Company, Inc. | Dallas, TX 75205 | Oil & Gas Operator | Sep 1998 |
| 2678 | Crego Exploration | Dallas, TX 75243 | Oil & Gas Operator | Feb 2026 |
| 2679 | Cremson Oil & Gas | Coleman, TX 76834 | Oil & Gas Operator | Feb 2026 |
| 2680 | Crenshaw Oil | Wichita Falls, TX 76302 | Oil & Gas Operator | Feb 2026 |
| 2681 | Crenshaw, Joe R. | Wichita Falls, TX 76301 | Oil & Gas Operator | Aug 2003 |
| 2682 | Crenshaw, K. M. | Wichita Falls, TX 76308 | Oil & Gas Operator | Aug 2018 |
| 2683 | Crescendo Resources, L.P. | Amarillo, TX 79188 | Oil & Gas Operator | Nov 2025 |
| 2684 | Crescent Energy Operating, LLC | Houston, TX 77002 | Oil & Gas Operator | Feb 2026 |
| 2685 | Crescent Exploration Company | Austin, TX 78767 | Oil & Gas Operator | Aug 1995 |
| 2686 | Crescent Exploration, LLC | Edmond, OK 73013 | Oil & Gas Operator | Mar 2015 |
| 2687 | Crescent Pass Energy, LLC | Houston, TX 77070 | Oil & Gas Operator | Feb 2026 |
| 2688 | Crest Operating Company | Houston, TX 77042 | Oil & Gas Operator | Feb 2026 |
| 2689 | Crest Petroleum, LLC | Wichita Falls, TX 76301 | Oil & Gas Operator | Feb 2026 |
| 2690 | Crest Resources & Expl. Corp. | Houston, TX 77079 | Oil & Gas Operator | Dec 1998 |
| 2691 | Crest Resources Inc | Tulsa, OK 74103 | Oil & Gas Operator | Feb 2026 |
| 2692 | Crestmont Operating LLC | New York, NY 10151 | Oil Operator | Feb 2026 |
| 2693 | Creston Petroleum Corp. | Dallas, TX 75380 | Oil & Gas Operator | Feb 2026 |
| 2694 | Crestridge DRLG. & Prod.Co.,LLC | Midland, TX 79702 | Oil & Gas Operator | Sep 2023 |
| 2695 | Creswell, Chris | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 2696 | Creswell, R.G. | Graham, TX 76450 | Oil & Gas Operator | Feb 2013 |
| 2697 | Crey Oil & Gas LLC | Sundown, TX 79372 | Oil Operator | Feb 2026 |
| 2698 | Crimson Energy Company, LC | Fort Worth, TX 76102 | Oil & Gas Operator | Mar 2004 |
| 2699 | Crimson Energy Partners IV, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Jun 2023 |
| 2700 | Crimson Energy Partners, L.P. | Fort Worth, TX 76102 | Oil & Gas Operator | Jun 2009 |