| 2401 | Covenant Oil Corp | Broken Arrow, OK 74014 | Oil & Gas Operator | May 2013 |
| 2402 | Covenant Operating, LLC | Wichita Falls, TX 76308 | Oil Operator | Apr 2025 |
| 2403 | Covenant Production Co., L.C. | Midland, TX 79702 | Oil & Gas Operator | Nov 2002 |
| 2404 | Covered H Energy, LLC | Lubbock, TX 79423 | Oil Operator | Apr 2025 |
| 2405 | Covert, Christopher P. | Geneva, NY 14456 | Gas Operator | Dec 2023 |
| 2406 | Covey Energy, Inc. | | Oil & Gas Operator | Jun 1998 |
| 2407 | Covey Park Gas LLC | | Oil & Gas Operator | Aug 2019 |
| 2408 | Covey Park Operating LLC | Dallas, TX 75225 | Oil & Gas Operator | Aug 2019 |
| 2409 | Covey Park Resources LLC | Frisco, TX 75034 | Oil & Gas Operator | Aug 2019 |
| 2410 | Covington Oil Company Inc | Nichols Hills, OK 73116 | Oil & Gas Operator | Feb 2025 |
| 2411 | Cow Creek Resources Inc | Ponca City, OK 74601-7815 | Oil & Gas Operator | Jan 2025 |
| 2412 | Cow Run LTD Liability Company | Davidson, NC 28036 | Oil & Gas Operator | Nov 2018 |
| 2413 | Cowan Oil Company | | Oil Operator | Sep 1990 |
| 2414 | Cowboy Clean Fuels LLC | Laramie, WY 82072 | Gas Operator | Feb 2025 |
| 2415 | Cowboy Oil & Gas | Bristow, OK 74010-0057 | Oil & Gas Operator | Jul 2018 |
| 2416 | Cowboy Operating LLC | Oklahoma City, OK 73120 | Oil Operator | Feb 2025 |
| 2417 | Cowboys Resources Corp. | New Braunfels, TX 78132 | Oil Operator | Jan 2008 |
| 2418 | Cowden SR Lester L | Oklahoma City, OK 73118-4011 | Oil & Gas Operator | Sep 1999 |
| 2419 | Cowen Michael T | | Oil & Gas Operator | Dec 2009 |
| 2420 | Cowles James C | Muskogee, OK 74401-5262 | Oil Operator | Jan 2025 |
| 2421 | Cowley Energy Associates, LLC | Plano, TX 75093 | Gas Operator | Dec 2009 |
| 2422 | Cowrie Energy LLC | Austin, TX 78703 | Oil & Gas Operator | Apr 2025 |
| 2423 | Cowry Enterprises, LTD. | Littleton, CO 80161-3310 | Oil & Gas Operator | Mar 2022 |
| 2424 | Cox & Perkins Exploration, Inc. | Houston, TX 77057 | Oil & Gas Operator | Apr 2025 |
| 2425 | Cox Bros Oil Co | Hominy, OK 74035 | Oil Operator | Mar 2022 |
| 2426 | Cox Edwin L & Be | | Oil & Gas Operator | Nov 1989 |
| 2427 | Cox Edwin L & Berry R | | Oil & Gas Operator | Oct 1987 |
| 2428 | Cox Edwin L & R Berry | Dallas, TX 75202 | Oil & Gas Operator | Apr 2015 |
| 2429 | Cox Elmer N | Irving, TX 75181 | Oil Operator | Aug 2013 |
| 2430 | Cox Engineering, LLC | Abilene, TX 79605 | Oil Operator | Mar 2006 |
| 2431 | Cox Exploration, Inc. | Dallas, TX 75201 | Oil & Gas Operator | Nov 1999 |
| 2432 | Cox Gas Corporation | Dallas, TX 75201-7306 | Oil & Gas Operator | Apr 2015 |
| 2433 | Cox Kendall Jay | Recluse, WY 28775 | Oil & Gas Operator | Aug 2016 |
| 2434 | Cox Linda | Bristow, OK 74010-0808 | Oil & Gas Operator | Jan 2018 |
| 2435 | Cox Oil & Gas, Inc. | Dallas, TX 75201 | Oil & Gas Operator | Mar 2014 |
| 2436 | Cox Operating Co. | Wichita Falls, TX 76310 | Oil & Gas Operator | Jun 2000 |
| 2437 | Cox Operating, L.L.C. | | Oil & Gas Operator | Jan 2024 |
| 2438 | Cox P D Inc | Bristow, OK 74010 | Oil & Gas Operator | May 1993 |
| 2439 | Cox Resources Corporation | Dallas, TX 75244 | Oil & Gas Operator | Mar 2015 |
| 2440 | Cox Robert L | Blackwell, OK 74631 | Oil & Gas Operator | Dec 2024 |
| 2441 | Cox, H. L. | Wichita Falls, TX 76307 | Oil & Gas Operator | Jan 2011 |
| 2442 | Cox, John L. | Midland, TX 79702 | Oil & Gas Operator | Mar 2015 |
| 2443 | Cox, Lee Investments Inc. | Mineral Wells, TX 76067 | Oil & Gas Operator | Apr 2025 |
| 2444 | Cox, Martin Regan | Irving, TX 75014 | Oil & Gas Operator | Apr 2025 |
| 2445 | Cox, Rex Allen | | Oil & Gas Operator | Dec 2021 |
| 2446 | Cox, Robert G. & Associates,Inc. | Dallas, TX 75225 | Oil & Gas Operator | Feb 1994 |
| 2447 | Cox, Wayne D. | Eureka, KS 67045 | Oil Operator | Sep 1991 |
| 2448 | Coy W. Hale | | Oil Operator | Nov 2024 |
| 2449 | Coyote Oil Company | Lufkin, TX 75915 | Oil & Gas Operator | Sep 1996 |
| 2450 | Coyote Oil Company. LTD. | | Oil & Gas Operator | Dec 1997 |
| 2451 | Coyote Oil LLC | | Oil Operator | Jan 2018 |
| 2452 | Coyote Oil, Inc. | Snyder, TX 79550 | Oil & Gas Operator | Apr 2025 |
| 2453 | Coyote Services, Inc. | Coleman, TX 76834 | Oil & Gas Operator | Mar 2002 |
| 2454 | Cozart Producers | | Oil Operator | Dec 2023 |
| 2455 | CP Energy LLC | Edmond, OK 73034 | Oil Operator | Feb 2025 |
| 2456 | CP Exploration III Operating,LLC | Lafayette, LA 70505 | Oil & Gas Operator | Sep 2023 |
| 2457 | CP Exploration TX Operating LLC | Jacksboro, TX 76458 | Oil & Gas Operator | Apr 2017 |
| 2458 | CPBG, LLC | | Oil Operator | Oct 2019 |
| 2459 | Cpi 5, L.L.C | | Oil Operator | Dec 2023 |
| 2460 | Cpi Operating Co. | | Oil & Gas Operator | Mar 2003 |
| 2461 | Cpi Operating Company, LLC | | Oil Operator | Jan 2025 |
| 2462 | Cpmak Investments, Inc. | Cross Plains, TX 76443 | Oil Operator | Apr 2025 |
| 2463 | CPRC Inc | Tulsa, OK 74103-5037 | Oil & Gas Operator | Apr 1997 |
| 2464 | CPRP Services LLC | Oklahoma City, OK 73102-5804 | Oil & Gas Operator | Jan 2025 |
| 2465 | CPX Energy Operating, LLC | Dallas, TX 75225 | Oil & Gas Operator | Apr 2025 |
| 2466 | CPX Piceance Holdings LLC | | Oil & Gas Operator | Jul 2024 |
| 2467 | CR Energy | | Oil & Gas Operator | Dec 1992 |
| 2468 | CR Reed Production, Inc. | Gainesville, TX 76241 | Oil Operator | Apr 2025 |
| 2469 | CR2 Energy LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2025 |
| 2470 | CR3 Operating Company, L.L.C. | Houston, TX 77251 | Oil & Gas Operator | Apr 2025 |
| 2471 | Cra International, LTD | | Oil & Gas Operator | Mar 1983 |
| 2472 | Crab Run Gas Company | | Oil & Gas Operator | Feb 1982 |
| 2473 | Crabtree And Brown, Inc. | Kermit, TX 79745 | Oil & Gas Operator | Feb 1995 |
| 2474 | Crabtree Barbara T | Forney, TX 75126-5818 | Oil & Gas Operator | Oct 2024 |
| 2475 | Cracker Oil & Gas Co | | Gas Operator | Dec 2013 |
| 2476 | Craddock, Roy H Dba Craddock Oil & Gas | Chapmanville, WV 25508 | Gas Operator | Dec 2021 |
| 2477 | Craft & Craft Oil Company | Monahans, TX 79756 | Oil Operator | Dec 2024 |
| 2478 | Craft & Craft Productions LLC | Wagoner, OK 74467 | Oil Operator | Jan 2025 |
| 2479 | Craft Operating NM LLC | Houston, TX 77057 | Oil Operator | Apr 2024 |
| 2480 | Craft Petroleum Company, Inc. Et Al | | Oil & Gas Operator | Mar 1997 |
| 2481 | Craft Resources, Inc. | Weston, TX 75097 | Oil & Gas Operator | Aug 2003 |
| 2482 | Craig Elder Oil And Gas LLC | Edmond, OK 73013 | Oil & Gas Operator | Jan 2025 |
| 2483 | Craig Oil Compan | | Oil Operator | Jul 1996 |
| 2484 | Craig Oil Company | | Oil Operator | Dec 2019 |
| 2485 | Craig, Bob | Olney, TX 76374 | Oil & Gas Operator | Apr 2025 |
| 2486 | Craig, Carl | Olney, TX 76374 | Oil & Gas Operator | Apr 2025 |
| 2487 | Craig, J. E. G. Estate | Kilgore, TX 75663 | Oil & Gas Operator | Apr 2025 |
| 2488 | Craig, Robert A. | Olney, TX 76374 | Oil Operator | Apr 2025 |
| 2489 | Craig, Wood B Or Monroe, Dianne | Canyon, TX 79015 | Gas Operator | Apr 2025 |
| 2490 | Craig, Wood B. & Bettie | Sunray, TX 79086 | Oil & Gas Operator | Aug 2005 |
| 2491 | Craig-Stephfield | | Oil & Gas Operator | Jan 1994 |
| 2492 | Craig/Stephfield Oil & Gas, Inc. | Ponca City, OK 74602 | Oil & Gas Operator | Apr 2001 |
| 2493 | Craighead, Ray | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 1998 |
| 2494 | Craighead, Ray Well Service Inc | Wichita Falls, TX 76308 | Oil Operator | Apr 2019 |
| 2495 | Craighead, Robert A. | Electra, TX 76360 | Oil & Gas Operator | Mar 2017 |
| 2496 | Crain & Deisenroth | Tulsa, OK 74103-4433 | Oil & Gas Operator | Mar 2015 |
| 2497 | Crain & Deisenroth LLC | Tulsa, OK 74104-6511 | Oil & Gas Operator | Apr 2014 |
| 2498 | Crain & Dore Production Co Inc | | Oil & Gas Operator | Oct 1990 |
| 2499 | Crain & Dore' | | Oil & Gas Operator | May 1986 |
| 2500 | Crain & Griffith DRL Co | | Oil Operator | Jun 1963 |