| 6901 | Crain & Griffith DRL Co | | Oil Operator | Jun 1963 |
| 6902 | Crain Minerals LLC | Oklahoma City, OK 73120-1004 | Oil & Gas Operator | Aug 2014 |
| 6903 | Crain Orchards Inc. | | Gas Operator | Dec 2024 |
| 6904 | Cramer Oil Company | Denver, CO 80202 | Oil Operator | Aug 2012 |
| 6905 | Cramer Oil LLC | Nowata, OK 74048-6011 | Oil Operator | Jan 2025 |
| 6906 | Crampton, Freddie | Holliday, TX 76366 | Oil & Gas Operator | Apr 2025 |
| 6907 | Crane Edward | | Oil Operator | Feb 1995 |
| 6908 | Crane Newton T | | Oil & Gas Operator | Feb 2013 |
| 6909 | Cranford Exploration, Inc. | | Oil & Gas Operator | Jul 2002 |
| 6910 | Cranford, Wayne | Electra, TX 76360 | Oil & Gas Operator | Dec 2019 |
| 6911 | Craruth Energy Corporation | Abilene, TX 79602 | Oil & Gas Operator | Apr 2025 |
| 6912 | Crasco Oil Company | Tulsa, OK 74120 | Oil Operator | Nov 1998 |
| 6913 | Crater, Gary D. | Kansas City, MO 64108 | Oil & Gas Operator | Feb 1988 |
| 6914 | Craton Energy Company II LLC | Oklahoma City, OK 73154 | Oil & Gas Operator | Dec 2006 |
| 6915 | Craton Energy Corporation | Oklahoma City, OK 73154 | Oil & Gas Operator | Jun 2005 |
| 6916 | Craton Energy Holdings III, LP | Houston, TX 77002 | Oil & Gas Operator | Jul 2009 |
| 6917 | Craton Operating LLC | Bellaire, TX 77401 | Oil & Gas Operator | Apr 2025 |
| 6918 | Cravey, W. H. | Hobbs, NM 88240 | Oil & Gas Operator | Jan 2012 |
| 6919 | Craw Operating LLC | Mooreland, OK 73852 | Oil & Gas Operator | Jan 2025 |
| 6920 | Crawford And Cameron Group | Houston, TX 77074 | Oil & Gas Operator | May 1997 |
| 6921 | Crawford Arthur E Dba The Lazy Oil Co | | Oil Operator | Dec 2023 |
| 6922 | Crawford Energy Operating Co | Houston, TX 77056 | Oil & Gas Operator | Aug 2008 |
| 6923 | Crawford Energy, Incorporated | Houston, TX 77056 | Oil & Gas Operator | Mar 2008 |
| 6924 | Crawford Hughes Operating Co. | The Woodlands, TX 77380 | Oil & Gas Operator | Apr 2025 |
| 6925 | Crawford John L | | Oil & Gas Operator | Jul 1991 |
| 6926 | Crawford Oil & W | | Oil Operator | Dec 1985 |
| 6927 | Crawford Oil Com | | Oil Operator | Dec 1987 |
| 6928 | Crawford Oil Company | Iowa Park, TX 76367 | Oil & Gas Operator | Jul 2001 |
| 6929 | Crawford Oil LLC | Paola, KS 66071 | Oil Operator | Dec 2019 |
| 6930 | Crawford Production Company Inc | Junction City, AR 71749 | Oil & Gas Operator | Jan 2025 |
| 6931 | Crawford, Linda | Alice, TX 78332 | Oil Operator | Apr 2025 |
| 6932 | Crawley Petroleum Corporation | Oklahoma City, OK 73102 | Oil & Gas Operator | Apr 2025 |
| 6933 | Crazy Horse Oil | | Oil Operator | Oct 2024 |
| 6934 | Crazy Horse Operating LLC | Austin, TX 78731 | Oil & Gas Operator | Apr 2025 |
| 6935 | Crazy J Oil LLC | | Oil & Gas Operator | Dec 2024 |
| 6936 | CRB Resources Inc | Oklahoma City, OK 73118 | Oil & Gas Operator | Jan 2025 |
| 6937 | CRD Investments LLC | Duncan, OK 73533-4226 | Oil Operator | Feb 2025 |
| 6938 | CRD Operating, LLC | Fort Worth, TX 76116 | Oil & Gas Operator | Feb 2021 |
| 6939 | Creager And Creager Production | Midland, TX 79708 | Oil & Gas Operator | Aug 2003 |
| 6940 | Creamer, Donald R., Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2006 |
| 6941 | Creative Oil & Gas Operating,LLC | Giddings, TX 78942 | Oil & Gas Operator | May 2024 |
| 6942 | Creative Oil And Gas Op II, LLC | San Antonio, TX 78246 | Oil Operator | Apr 2025 |
| 6943 | Crebbs Oil Company | Batson, TX 77519 | Oil & Gas Operator | Jun 2024 |
| 6944 | Creco Operating, LLC | | Oil & Gas Operator | Nov 2015 |
| 6945 | Credo Petroleum Corporation | Denver, CO 80202 | Oil & Gas Operator | Jan 2013 |
| 6946 | Cree Oil LLC | | Oil & Gas Operator | Dec 2024 |
| 6947 | Creed Operating Co., LLC | Wichita Falls, TX 76301 | Oil & Gas Operator | Apr 2025 |
| 6948 | Creede Oil & Gas Company | Oklahoma City, OK 73102-7502 | Oil & Gas Operator | Jun 2006 |
| 6949 | Creek Ellis | Haskell, OK 74436 | Oil & Gas Operator | Mar 2012 |
| 6950 | Creek Energy, Inc. | Brownwood, TX 76804 | Oil & Gas Operator | Apr 2025 |
| 6951 | Creek Oil Company | Colorado Springs, CO 80906 | Oil & Gas Operator | Aug 2001 |
| 6952 | Creek Operating Company, Inc. | Dallas, TX 75205 | Oil & Gas Operator | Sep 1998 |
| 6953 | Crego Exploration | Dallas, TX 75243 | Oil & Gas Operator | Apr 2025 |
| 6954 | Creighton Rick D | New Matamoras, OH 45767 | Oil & Gas Operator | Dec 2016 |
| 6955 | Cremson Oil & Gas | Coleman, TX 76834 | Oil & Gas Operator | Apr 2025 |
| 6956 | Crenshaw Oil | Wichita Falls, TX 76302 | Oil & Gas Operator | Apr 2025 |
| 6957 | Crenshaw, Joe R. | Wichita Falls, TX 76301 | Oil & Gas Operator | Aug 2003 |
| 6958 | Crenshaw, K. M. | Wichita Falls, TX 76308 | Oil & Gas Operator | Aug 2018 |
| 6959 | Creole Operating, LLC | | Oil & Gas Operator | Dec 2024 |
| 6960 | Crescendo Resources, L.P. | Amarillo, TX 79188 | Oil & Gas Operator | Jan 2025 |
| 6961 | Crescent Drillin | | Gas Operator | Apr 1991 |
| 6962 | Crescent Drilling Company, Inc. | | Gas Operator | Dec 2024 |
| 6963 | Crescent DRLG & DVLPMNT, Inc. | | Oil & Gas Operator | Oct 1992 |
| 6964 | Crescent Energy Company | | Oil Operator | May 1993 |
| 6965 | Crescent Exploration Company | Austin, TX 78767 | Oil & Gas Operator | Aug 1995 |
| 6966 | Crescent Exploration, LLC | Edmond, OK 73013 | Oil & Gas Operator | Mar 2015 |
| 6967 | Crescent Oil & Gas | Decatur, TX 76234 | Gas Operator | Dec 1999 |
| 6968 | Crescent Oil Energies Corp | Crescent, OK 73028 | Oil & Gas Operator | Jun 1997 |
| 6969 | Crescent Pass Energy, LLC | Houston, TX 77070 | Oil & Gas Operator | Apr 2025 |
| 6970 | Crescent Point Energy Us Corp | Denver, CO 80202 | Oil & Gas Operator | Apr 2024 |
| 6971 | Creslenn Oil Company | | Oil & Gas Operator | Nov 1998 |
| 6972 | Crest Oil & Gas Management Corp. | | Oil & Gas Operator | Dec 2024 |
| 6973 | Crest Operating Company | Houston, TX 77042 | Oil & Gas Operator | Apr 2025 |
| 6974 | Crest Petr Inc | Rose Hill, KS 67133 | Oil Operator | Jun 2000 |
| 6975 | Crest Petroleum | Newark, OH 43055 | Oil & Gas Operator | Nov 1993 |
| 6976 | Crest Petroleum, LLC | Wichita Falls, TX 76301 | Oil & Gas Operator | Apr 2025 |
| 6977 | Crest Resources & Expl. Corp. | Houston, TX 77079 | Oil & Gas Operator | Dec 1998 |
| 6978 | Crest Resources Inc | Tulsa, OK 74103 | Oil & Gas Operator | Apr 2025 |
| 6979 | Crestmont Operating LLC | New York, NY 10151 | Oil Operator | Apr 2025 |
| 6980 | Creston Oil Corporation | Jacksonville, FL 32225 | Oil & Gas Operator | Dec 2021 |
| 6981 | Creston Petroleum Corp. | Dallas, TX 75380 | Oil & Gas Operator | Apr 2025 |
| 6982 | Crestone Peak Resources Operating LLC | | Oil & Gas Operator | Jan 2025 |
| 6983 | Crestridge DRLG. & Prod.Co.,LLC | Midland, TX 79702 | Oil & Gas Operator | Sep 2023 |
| 6984 | Creswell, Chris | Graham, TX 76450 | Oil & Gas Operator | Apr 2025 |
| 6985 | Creswell, R.G. | Graham, TX 76450 | Oil & Gas Operator | Feb 2013 |
| 6986 | Crew B Operating, LLC | Okmulgee, OK 74447 | Oil Operator | Jan 2025 |
| 6987 | Crey Oil & Gas LLC | Sundown, TX 79372 | Oil Operator | Apr 2025 |
| 6988 | CRG Properties LTD. | | Oil & Gas Operator | Dec 2013 |
| 6989 | Cricket Enterprises Corporation | Nowata, OK 74048-9683 | Oil & Gas Operator | Mar 2015 |
| 6990 | Cricket Petroleum | Tulsa, OK 74146 | Oil & Gas Operator | Dec 2016 |
| 6991 | Criger Oil Compa | | Oil Operator | Sep 1992 |
| 6992 | Crimson Energy Company, LC | Fort Worth, TX 76102 | Oil & Gas Operator | Mar 2004 |
| 6993 | Crimson Energy Partners IV, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Jun 2023 |
| 6994 | Crimson Energy Partners V, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2025 |
| 6995 | Crimson Energy Partners, L.P. | Fort Worth, TX 76102 | Oil & Gas Operator | Jun 2009 |
| 6996 | Crimson Energy PTNRS III, L.L.C. | Fort Worth, TX 76102 | Oil & Gas Operator | Jul 2023 |
| 6997 | Crimson Explor Operating, Inc. | | Oil & Gas Operator | Dec 2009 |
| 6998 | Crimson Exploration Inc. | Houston, TX 77060 | Oil & Gas Operator | Apr 2006 |
| 6999 | Crimson Exploration Oper., Inc. | Houston, TX 77002 | Oil & Gas Operator | Dec 2019 |
| 7000 | Crimson Resource Management Corp. | | Oil & Gas Operator | Dec 2024 |