| 6601 | Cpmak Investments, Inc. | Cross Plains, TX 76443 | Oil Operator | Sep 2026 |
| 6602 | CPRC Inc | Tulsa, OK 74103-5037 | Oil & Gas Operator | Apr 1997 |
| 6603 | CPRP Services LLC | Oklahoma City, OK 73102-5804 | Oil & Gas Operator | Jun 2026 |
| 6604 | CPX Energy Operating, LLC | Fort Worth, TX 76147 | Oil & Gas Operator | Sep 2026 |
| 6605 | CR Energy | | Oil & Gas Operator | Dec 1992 |
| 6606 | CR Reed Production, Inc. | Gainesville, TX 76241 | Oil Operator | Sep 2026 |
| 6607 | CR2 Energy LLC | Kemah, TX 77565 | Oil & Gas Operator | Sep 2026 |
| 6608 | CR3 Operating Company, L.L.C. | Houston, TX 77251 | Oil & Gas Operator | Sep 2026 |
| 6609 | Cra International, LTD | | Oil & Gas Operator | Mar 1983 |
| 6610 | Cra-Gro Crop Service, Inc. | Graham, TX 76450 | Oil & Gas Operator | Sep 2026 |
| 6611 | Crab Run Gas Company | | Oil & Gas Operator | Feb 1982 |
| 6612 | Crabtree And Brown, Inc. | Kermit, TX 79745 | Oil & Gas Operator | Feb 1995 |
| 6613 | Crabtree Barbara T | Forney, TX 75126-5818 | Oil & Gas Operator | Oct 2024 |
| 6614 | Cracker Oil & Gas Co | | Gas Operator | Dec 2013 |
| 6615 | Craft & Craft Productions LLC | | Oil Operator | May 2025 |
| 6616 | Craft Operating NM LLC | Houston, TX 77057 | Oil Operator | Apr 2024 |
| 6617 | Craft Petroleum Company, Inc. Et Al | | Oil & Gas Operator | Mar 1997 |
| 6618 | Craft Resources, Inc. | Weston, TX 75097 | Oil & Gas Operator | Aug 2003 |
| 6619 | Craig Elder Oil And Gas LLC | Edmond, OK 73013 | Oil & Gas Operator | Jun 2026 |
| 6620 | Craig Oil Compan | | Oil Operator | Jul 1996 |
| 6621 | Craig Oil Company | | Oil Operator | Dec 2019 |
| 6622 | Craig Oil, Inc. | Olney, TX 76374 | Oil Operator | Sep 2026 |
| 6623 | Craig, Bob | Olney, TX 76374 | Oil & Gas Operator | Sep 2026 |
| 6624 | Craig, Carl | Olney, TX 76374 | Oil & Gas Operator | Sep 2026 |
| 6625 | Craig, J. E. G. Estate | Kilgore, TX 75663 | Oil & Gas Operator | Sep 2026 |
| 6626 | Craig, Robert A. | Olney, TX 76374 | Oil Operator | Sep 2026 |
| 6627 | Craig, Wood B. & Bettie | Sunray, TX 79086 | Oil & Gas Operator | Aug 2005 |
| 6628 | Craig-Stephfield | | Oil & Gas Operator | Jan 1994 |
| 6629 | Craig/Stephfield Oil & Gas, Inc. | Ponca City, OK 74602 | Oil & Gas Operator | Apr 2001 |
| 6630 | Craighead, Ray | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 1998 |
| 6631 | Craighead, Ray Well Service Inc | Wichita Falls, TX 76308 | Oil Operator | Apr 2019 |
| 6632 | Craighead, Robert A. | Electra, TX 76360 | Oil & Gas Operator | Mar 2017 |
| 6633 | Crain & Deisenroth | Tulsa, OK 74103-4433 | Oil & Gas Operator | Mar 2015 |
| 6634 | Crain & Deisenroth LLC | Tulsa, OK 74104-6511 | Oil & Gas Operator | Apr 2014 |
| 6635 | Crain & Dore Production Co Inc | | Oil & Gas Operator | Oct 1990 |
| 6636 | Crain & Dore' | | Oil & Gas Operator | May 1986 |
| 6637 | Crain & Griffith DRL Co | | Oil Operator | Jun 1963 |
| 6638 | Crain Minerals LLC | Oklahoma City, OK 73120-1004 | Oil & Gas Operator | Aug 2014 |
| 6639 | Crain Orchards Inc. | | Gas Operator | Dec 2025 |
| 6640 | Cramer Oil Company | Denver, CO 80202 | Oil Operator | Aug 2012 |
| 6641 | Cramer Oil LLC | Nowata, OK 74048-6011 | Oil Operator | Jun 2026 |
| 6642 | Crampton, Freddie | Holliday, TX 76366 | Oil & Gas Operator | Sep 2026 |
| 6643 | Crane Edward | | Oil Operator | Feb 1995 |
| 6644 | Cranford Exploration, Inc. | | Oil & Gas Operator | Jul 2002 |
| 6645 | Cranford, Wayne | Electra, TX 76360 | Oil & Gas Operator | Dec 2019 |
| 6646 | Craruth Energy Corporation | Abilene, TX 79602 | Oil & Gas Operator | Sep 2026 |
| 6647 | Crasco Oil Company | Tulsa, OK 74120 | Oil Operator | Nov 1998 |
| 6648 | Crater, Gary D. | Kansas City, MO 64108 | Oil & Gas Operator | Feb 1988 |
| 6649 | Craton Energy Company II LLC | Oklahoma City, OK 73154 | Oil & Gas Operator | Dec 2006 |
| 6650 | Craton Energy Corporation | Oklahoma City, OK 73154 | Oil & Gas Operator | Jun 2005 |
| 6651 | Craton Energy Holdings III, LP | Houston, TX 77002 | Oil & Gas Operator | Jul 2009 |
| 6652 | Craton Operating LLC | Bellaire, TX 77401 | Oil & Gas Operator | Sep 2026 |
| 6653 | Cravey, W. H. | Hobbs, NM 88240 | Oil & Gas Operator | Jan 2012 |
| 6654 | Craw Operating LLC | Mooreland, OK 73852 | Oil & Gas Operator | Jul 2026 |
| 6655 | Crawford And Cameron Group | Houston, TX 77074 | Oil & Gas Operator | May 1997 |
| 6656 | Crawford Arthur E Dba The Lazy Oil Co | | Oil Operator | Dec 2025 |
| 6657 | Crawford County Production LLC | | Oil Operator | May 2026 |
| 6658 | Crawford Energy Operating Co | Houston, TX 77056 | Oil & Gas Operator | Aug 2008 |
| 6659 | Crawford Energy, Incorporated | Houston, TX 77056 | Oil & Gas Operator | Mar 2008 |
| 6660 | Crawford Hughes Operating Co. | The Woodlands, TX 77380 | Oil & Gas Operator | Apr 2026 |
| 6661 | Crawford Oil & W | | Oil Operator | Dec 1985 |
| 6662 | Crawford Oil Com | | Oil Operator | Dec 1987 |
| 6663 | Crawford Oil Company | Iowa Park, TX 76367 | Oil & Gas Operator | Jul 2001 |
| 6664 | Crawford Oil LLC | Paola, KS 66071 | Oil Operator | Dec 2019 |
| 6665 | Crawford Production Company Inc | Junction City, AR 71749 | Oil & Gas Operator | May 2026 |
| 6666 | Crawley Petroleum Corporation | Oklahoma City, OK 73102 | Oil & Gas Operator | Sep 2026 |
| 6667 | Crazy Horse Operating LLC | Austin, TX 78731 | Oil & Gas Operator | Sep 2026 |
| 6668 | Crazy J Oil LLC | | Oil & Gas Operator | Jul 2026 |
| 6669 | CRB Resources Inc | Oklahoma City, OK 73118 | Oil & Gas Operator | Jun 2026 |
| 6670 | CRD Investments LLC | Duncan, OK 73533-4226 | Oil Operator | Jul 2026 |
| 6671 | CRD Operating, LLC | Fort Worth, TX 76116 | Oil & Gas Operator | Feb 2021 |
| 6672 | Creamer, Donald R., Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2006 |
| 6673 | Creative Oil & Gas Operating,LLC | Giddings, TX 78942 | Oil & Gas Operator | May 2024 |
| 6674 | Creative Oil And Gas Op II, LLC | Santa Anna, TX 76878 | Oil Operator | Sep 2026 |
| 6675 | Crebbs Oil Company | Batson, TX 77519 | Oil & Gas Operator | Jun 2024 |
| 6676 | Creco Operating LLC | | Oil & Gas Operator | Nov 2015 |
| 6677 | Credo Petroleum Corporation | Denver, CO 80202 | Oil & Gas Operator | Jan 2013 |
| 6678 | Cree Oil LLC | | Oil & Gas Operator | Jul 2026 |
| 6679 | Creed Operating Co., LLC | Wichita Falls, TX 76301 | Oil & Gas Operator | Sep 2026 |
| 6680 | Creek Ellis | Haskell, OK 74436 | Oil & Gas Operator | Mar 2012 |
| 6681 | Creek Energy, Inc. | Brownwood, TX 76804 | Oil & Gas Operator | Sep 2026 |
| 6682 | Creek Oil Company | Colorado Springs, CO 80906 | Oil & Gas Operator | Aug 2001 |
| 6683 | Creek Operating Company, Inc. | Dallas, TX 75205 | Oil & Gas Operator | Sep 1998 |
| 6684 | Crego Exploration | Dallas, TX 75243 | Oil & Gas Operator | Sep 2026 |
| 6685 | Creighton Rick D | New Matamoras, OH 45767 | Oil & Gas Operator | Dec 2016 |
| 6686 | Cremson Oil & Gas | Coleman, TX 76834 | Oil & Gas Operator | Sep 2026 |
| 6687 | Crenshaw Oil | Wichita Falls, TX 76302 | Oil & Gas Operator | Sep 2026 |
| 6688 | Crenshaw, Joe R. | Wichita Falls, TX 76301 | Oil & Gas Operator | Aug 2003 |
| 6689 | Crenshaw, K. M. | Wichita Falls, TX 76308 | Oil & Gas Operator | Aug 2018 |
| 6690 | Creole Operating, LLC | | Oil & Gas Operator | Dec 2024 |
| 6691 | Crescendo Resources, L.P. | Amarillo, TX 79188 | Oil & Gas Operator | Jun 2026 |
| 6692 | Crescent Drillin | | Gas Operator | Apr 1991 |
| 6693 | Crescent Drilling Company, Inc. | | Gas Operator | Dec 2024 |
| 6694 | Crescent DRLG & DVLPMNT, Inc. | | Oil & Gas Operator | Oct 1992 |
| 6695 | Crescent Energy Company | | Oil Operator | May 1993 |
| 6696 | Crescent Energy Operating, LLC | Houston, TX 77002 | Oil & Gas Operator | Sep 2026 |
| 6697 | Crescent Exploration Company | Austin, TX 78767 | Oil & Gas Operator | Aug 1995 |
| 6698 | Crescent Exploration, LLC | Edmond, OK 73013 | Oil & Gas Operator | Mar 2015 |
| 6699 | Crescent Oil & Gas | Decatur, TX 76234 | Gas Operator | Dec 1999 |
| 6700 | Crescent Pass Energy, LLC | Houston, TX 77070 | Oil & Gas Operator | May 2026 |