| 5401 | Chandler & Associates, Inc. | Denver, CO 80202 | Oil & Gas Operator | May 1997 |
| 5402 | Chandler DJ Basin LLC | | Oil & Gas Operator | Jul 2012 |
| 5403 | Chandler Energy LLC | Denver, CO 80202 | Oil & Gas Operator | Jan 2009 |
| 5404 | Chandler Oil & Gas, LLC | Beeville, TX 78102 | Oil & Gas Operator | Oct 2025 |
| 5405 | Chaney & Cogburn Roustabout Well Serv | Cement, OK 73017-0267 | Oil & Gas Operator | Mar 2015 |
| 5406 | Chaney Oil Company | Andrews, TX 79714 | Oil & Gas Operator | Oct 2025 |
| 5407 | Channa Operating, LLC | Houston, TX 77063 | Oil & Gas Operator | Jul 2021 |
| 5408 | Channel Exploration Company | | Oil & Gas Operator | Feb 1997 |
| 5409 | Channel Production Company | Marshall, TX 75670 | Oil & Gas Operator | Oct 2025 |
| 5410 | Chanse Energy Corporation | Shreveport, LA 71165-1572 | Oil & Gas Operator | Sep 2021 |
| 5411 | Chanse Petroleum Corporation | New York, NY 10165-1134 | Oil & Gas Operator | Feb 2015 |
| 5412 | Chantrey Corporation | Midland, TX 79707 | Gas Operator | Feb 2003 |
| 5413 | Chanze Oil Co., Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Oct 2025 |
| 5414 | Chap Operating, Inc. | Knox City, TX 79529 | Oil & Gas Operator | Oct 2025 |
| 5415 | Chaparosa Production Company,Inc | Freer, TX 78357 | Oil & Gas Operator | Oct 2025 |
| 5416 | Chaparral (USA) Energy, Inc. | Oklahoma City, OK 73114 | Oil & Gas Operator | Sep 2002 |
| 5417 | Chaparral Energy, Inc. | Oklahoma City, OK 73114 | Oil & Gas Operator | Dec 2009 |
| 5418 | Chaparral Energy, L.L.C. | Oklahoma City, OK 73142 | Oil & Gas Operator | Oct 2025 |
| 5419 | Chaparral Expl & C L Morris In | | Oil & Gas Operator | Nov 1994 |
| 5420 | Chaparral Exploration, Inc. | | Oil & Gas Operator | Jun 2000 |
| 5421 | Chaparral Natural Resources,Inc. | Austin, TX 78746 | Oil & Gas Operator | Oct 2025 |
| 5422 | Chaparral Oil & Gas Co | Aztec, NM 87410 | Gas Operator | Jul 2025 |
| 5423 | Chaparral Operating, Inc. | Shreveport, LA 71166 | Oil & Gas Operator | Oct 2025 |
| 5424 | Chaparral Petroleum Inc. | | Oil Operator | Jul 2025 |
| 5425 | Chaparral Resources Inc | Denver, CO 80293 | Oil & Gas Operator | Jan 1996 |
| 5426 | Chaparral SWD | Eunice, NM 88231 | Oil Operator | Dec 1995 |
| 5427 | Chapco, Inc. | Benavides, TX 78341 | Oil & Gas Operator | Oct 2025 |
| 5428 | Chapel Operating LLC | Lone Grove, OK 73443 | Oil Operator | Jun 2025 |
| 5429 | Chapman Elise P Estate | | Oil & Gas Operator | Mar 2020 |
| 5430 | Chapman Energy O | | Oil & Gas Operator | Jun 1993 |
| 5431 | Chapman Energy Oklahoma, Inc. | Dallas, TX 75231 | Oil & Gas Operator | Mar 2015 |
| 5432 | Chapman Explorat | | Oil Operator | Feb 1988 |
| 5433 | Chapman Exploration Inc | Tulsa, OK 74136 | Oil & Gas Operator | Aug 2013 |
| 5434 | Chapman Gary W | MT Perry, OH 43760 | Oil Operator | Dec 2024 |
| 5435 | Chapman Jim | Bristow, OK 74010-1173 | Oil Operator | Apr 2021 |
| 5436 | Chapman Oil Company | Midland, TX 79702 | Oil & Gas Operator | Jun 2025 |
| 5437 | Chapman Resources Corporation | Dallas, TX 75231 | Oil & Gas Operator | May 1999 |
| 5438 | Chapman, Ford Operating, Inc. | Midland, TX 79702 | Oil & Gas Operator | Jan 1996 |
| 5439 | Chapparal Operating Co. | Fort Worth, TX 76121 | Oil & Gas Operator | Oct 2025 |
| 5440 | Chapter Petroleum | Borger, TX 79008 | Oil & Gas Operator | Mar 1997 |
| 5441 | Chapter Petroleum, Inc. | Borger, TX 79008 | Oil & Gas Operator | Mar 2001 |
| 5442 | Chardonnay Operating, Inc. | Olney, TX 76374 | Oil & Gas Operator | Dec 1996 |
| 5443 | Charger Oil & Gas, LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2014 |
| 5444 | Charger Resources, LLC | Hurst, TX 76054 | Oil & Gas Operator | Aug 2015 |
| 5445 | Charger Shale Oil Operating, LLC | Austin, TX 78704 | Oil & Gas Operator | Sep 2021 |
| 5446 | Charing Cross Properties | | Oil Operator | Aug 1995 |
| 5447 | Charis Energy Inc | Kerrville, TX 78029-0469 | Oil & Gas Operator | Dec 2015 |
| 5448 | Charis Energy LLC | Kerrville, TX 78029 | Oil & Gas Operator | Dec 2005 |
| 5449 | Charis Oil & Gas, LLC | Addison, TX 75001 | Oil & Gas Operator | Oct 2025 |
| 5450 | Charity Gas, Inc. | Salem, WV 26426-5554 | Oil & Gas Operator | Dec 2021 |
| 5451 | Charles A. Bird, Estate | Midland, TX 79702 | Oil & Gas Operator | Feb 2015 |
| 5452 | Charles A. O'Niell, Jr. | | Oil & Gas Operator | Apr 2001 |
| 5453 | Charles B Gillespie Jr | Midland, TX 79701 | Oil & Gas Operator | Jun 2001 |
| 5454 | Charles B. Bice | | Oil & Gas Operator | Jul 1983 |
| 5455 | Charles D. Self Operating, LLC | Jacksboro, TX 76458 | Oil Operator | Oct 2025 |
| 5456 | Charles E. Mayfield | | Oil & Gas Operator | Mar 2001 |
| 5457 | Charles F. Word & Associates | | Oil Operator | Dec 1978 |
| 5458 | Charles G. Dannelly | | Oil & Gas Operator | Mar 1998 |
| 5459 | Charles Holston, Inc. | | Oil Operator | Jan 2025 |
| 5460 | Charles Holston, Inc. Dba GTTS | | Oil Operator | Apr 2009 |
| 5461 | Charles J Kittrell | Hobbs, NM 88241 | Oil & Gas Operator | Oct 1997 |
| 5462 | Charles M. Nolan | | Oil Operator | Aug 1984 |
| 5463 | Charles P Dunning LLC | | Oil & Gas Operator | Apr 2025 |
| 5464 | Charles T Giewont | Edinboro, PA 16412-5415 | Gas Operator | Dec 2009 |
| 5465 | Charles W Kemp | Hobbs, NM 88240 | Oil & Gas Operator | Mar 2000 |
| 5466 | Charles W. Hinesley | | Oil & Gas Operator | Dec 1991 |
| 5467 | Charleston Oil & Gas, Inc. | | Oil & Gas Operator | Mar 1997 |
| 5468 | Charmane Oil Corp | | Oil Operator | Dec 2014 |
| 5469 | Charoil Co., J. Norm And Charlotte Sibley Dba | Roundup, MT 59072 | Oil Operator | Oct 2002 |
| 5470 | Charolais Energy, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Oct 2025 |
| 5471 | Charro Operating, L.L.C. | Englewood, CO 80112 | Oil & Gas Operator | Oct 2025 |
| 5472 | Charter Energy, Inc. | Great Bend, KS 67530 | Oil Operator | Jun 2025 |
| 5473 | Charter Oak Production Co LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Oct 2025 |
| 5474 | Charter Petroleum Company | Abilene, TX 79605 | Oil & Gas Operator | Oct 2025 |
| 5475 | Charter Producti | | Oil & Gas Operator | Jun 1994 |
| 5476 | Charter Production Company | Wichita, KS 67202 | Oil & Gas Operator | Feb 2018 |
| 5477 | Charter Services LLC | Cushing, OK 74023 | Oil Operator | Jul 2025 |
| 5478 | Chartex Petroleum Company | Houston, TX 77070 | Oil & Gas Operator | Aug 2000 |
| 5479 | Chase Avenue Corporation, The | Dallas, TX 75219 | Oil & Gas Operator | Jun 2003 |
| 5480 | Chase Energy, Inc. | Austin, TX 78763 | Oil & Gas Operator | Oct 2001 |
| 5481 | Chase Exploratio | | Oil Operator | Sep 1992 |
| 5482 | Chase Oil & Gas Inc C-O Triad | | Oil & Gas Operator | Mar 1993 |
| 5483 | Chase Operating Company | Abilene, TX 79608 | Oil & Gas Operator | Feb 2016 |
| 5484 | Chase Petroleum, Inc. | Glenville, WV 26351-1026 | Oil & Gas Operator | Dec 2021 |
| 5485 | Chase Production Company | Pampa, TX 79066 | Oil & Gas Operator | Oct 2025 |
| 5486 | Chase Well Servi | | Oil Operator | Jun 1989 |
| 5487 | Chase Well Service, Inc. | Great Bend, KS 67530 | Oil Operator | Mar 2004 |
| 5488 | Chase, Glen Drilling | Chanute, KS 66720 | Oil Operator | Jul 1996 |
| 5489 | Chase, Michael | Chanute, KS 66720 | Oil Operator | Mar 1999 |
| 5490 | Chase, Ronald E. II | South Dayton, NY 14138 | Gas Operator | Dec 2024 |
| 5491 | Chasla Energy, LLC | Iowa Park, TX 76367 | Oil Operator | Oct 2025 |
| 5492 | Chass Production Co. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Nov 2020 |
| 5493 | Chastain Diane | Coffeyville, KS 67337-9620 | Oil & Gas Operator | Feb 2015 |
| 5494 | Chastain Farms LLC | Guthrie, KY 42234 | Oil & Gas Operator | Mar 2020 |
| 5495 | Chastain Land & Energy LLC | Wetumka, OK 74883-0067 | Oil & Gas Operator | Sep 2017 |
| 5496 | Chateau Oil And Gas, Inc. | Dallas, TX 75225 | Oil & Gas Operator | Feb 2017 |
| 5497 | Chatham John | Wilson, OK 73463-9575 | Oil Operator | Feb 2014 |
| 5498 | Chatham Verdell | Ratliff City, OK 73081-0061 | Oil Operator | Oct 2009 |
| 5499 | Chatham VIckie R | Wilson, OK 73463 | Oil Operator | Jun 2025 |
| 5500 | Chatham, Maxine | | Oil Operator | Oct 2016 |