| 6801 | Criterion Energy, Limited | Austin, TX 78737 | Gas Operator | Jan 2003 |
| 6802 | CRJ Bond Operations, LLC | Graham, TX 76450 | Oil Operator | Nov 2024 |
| 6803 | CRM Energy Partners | Skiatook, OK 74070 | Oil & Gas Operator | Sep 2024 |
| 6804 | CRM Energy, Inc. | Oklahoma City, OK 73101 | Oil & Gas Operator | Nov 2024 |
| 6805 | Crocker Oil Company | Windthorst, TX 76389 | Oil & Gas Operator | Aug 1999 |
| 6806 | Crockett Oil And Gas, Inc. | Sharon, KS 67138 | Oil & Gas Operator | Jun 2006 |
| 6807 | Crockett Operating, LLC | Arlington, TX 76017 | Oil & Gas Operator | Nov 2024 |
| 6808 | Crockett Operting, LLC | Arlington, TX 76013 | Oil & Gas Operator | Oct 2020 |
| 6809 | Croft Petroleum Co. | Cut Bank, MT 59427 | Oil & Gas Operator | Dec 2022 |
| 6810 | Croker, Danny | Wichita Falls, TX 76302 | Oil & Gas Operator | Nov 2024 |
| 6811 | Cromeens Petroleum, Inc. | Mineral Wells, TX 76067 | Oil & Gas Operator | Sep 1996 |
| 6812 | Cromer Carroll Oil & Gas LLC | Kalispell, MT 59901-8967 | Oil & Gas Operator | Aug 2024 |
| 6813 | Crone Oil Company | Gruver, TX 79040 | Oil & Gas Operator | Nov 2024 |
| 6814 | Cronus Exploration Co LLC | | Oil & Gas Operator | Jun 2024 |
| 6815 | Crooch John | Okmulgee, OK 74447 | Oil Operator | Aug 2024 |
| 6816 | Crook-Woodlin Expl.,Inc. | | Oil Operator | Feb 1988 |
| 6817 | Crosbys Creek Oil & Gas, LLC | Ridgeland, MS 39157 | Oil & Gas Operator | Jun 2024 |
| 6818 | Cross And Cross | Overland Park, KS 66214 | Oil Operator | Sep 1997 |
| 6819 | Cross Bar Energy, LLC | Wichita, KS 67206 | Oil Operator | Jul 2024 |
| 6820 | Cross Bar Petrol | | Oil Operator | Aug 1995 |
| 6821 | Cross Bar Petroleum, Inc. | Wichita, KS 67205 | Oil & Gas Operator | Jun 2016 |
| 6822 | Cross Border Resources, Inc. | Dallas, TX 75235 | Oil & Gas Operator | Jan 2022 |
| 6823 | Cross Creek Corporation | Duncan, OK 73534 | Oil & Gas Operator | Mar 1999 |
| 6824 | Cross Creek Energy LLC | Houston, TX 77074 | Oil & Gas Operator | Aug 2013 |
| 6825 | Cross Development Co. | | Oil Operator | Dec 1989 |
| 6826 | Cross Development-MMHS PRTSHP. | | Oil Operator | May 1987 |
| 6827 | Cross Development1984-1 PRTSHP | | Oil & Gas Operator | Sep 1990 |
| 6828 | Cross Don | Cushing, OK 74023-6316 | Oil & Gas Operator | Feb 2022 |
| 6829 | Cross Timbers Energy, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Nov 2024 |
| 6830 | Cross Timbers Oil Company | Dallas, TX 75284 | Oil & Gas Operator | May 2013 |
| 6831 | Cross Timbers Op | | Oil & Gas Operator | Nov 1996 |
| 6832 | Cross Timbers Operating Co | Fort Worth, TX 76102 | Oil & Gas Operator | Jul 2024 |
| 6833 | Cross Timbers Operating Inc | | Gas Operator | Jul 2001 |
| 6834 | Cross Timbers Production Co | Oklahoma City, OK 73102-5605 | Oil & Gas Operator | Mar 2005 |
| 6835 | Cross Winds Oil & Gas, LLC | Gruver, TX 79040 | Gas Operator | Nov 2024 |
| 6836 | Cross, Don E | | Oil & Gas Operator | Jan 2013 |
| 6837 | Cross, Howard W | Albany, KY 42602 | Oil Operator | Dec 2022 |
| 6838 | Crossbow Resources, LLC | Graham, TX 76450 | Oil & Gas Operator | Nov 2024 |
| 6839 | Crossfield Larry | | Oil & Gas Operator | Sep 1993 |
| 6840 | Crossfoot Operating, LLC | Houston, TX 77227 | Oil & Gas Operator | Nov 2024 |
| 6841 | Crossing Rocks Energy, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Mar 2018 |
| 6842 | Crossland Oil & Gas | Dallas, TX 75205 | Oil & Gas Operator | Aug 1994 |
| 6843 | Crossley, Patricia J. | Kennedy, NY 14747 | Gas Operator | Dec 2023 |
| 6844 | Crosspoint Energy Company | Dallas, TX 75205 | Oil & Gas Operator | Oct 2007 |
| 6845 | Crossroads Energy Development, LLC | | Oil Operator | Mar 2018 |
| 6846 | Crossroads Energy L.P. | Houston, TX 77064 | Oil & Gas Operator | Jun 2011 |
| 6847 | Crossroads Energy Partners, LLC | Houston, TX 77070 | Oil & Gas Operator | Mar 2018 |
| 6848 | Crossroads Mineral Prod., L.L.C. | Seguin, TX 78155 | Oil Operator | Nov 2024 |
| 6849 | Crossroads Operating, LLC | Midland, TX 79705 | Oil & Gas Operator | Nov 2024 |
| 6850 | Crossroads Petroleum L.L.C. | San Benito, TX 78586 | Oil & Gas Operator | Nov 2024 |
| 6851 | Crossroads Vacuum & Weld. Serv. | Luling, TX 78648 | Oil Operator | Mar 2010 |
| 6852 | Crosstex Lig, LLC | | Oil Operator | Mar 2014 |
| 6853 | Crosstex Processing SVCS, LLC | | Oil Operator | Mar 2014 |
| 6854 | Crosstex Services, L.L.C. | Tuscola, TX 79562 | Oil Operator | Nov 2024 |
| 6855 | Crosstex Treating Services, L.P. | | Oil Operator | Sep 2009 |
| 6856 | Crouch Petroleum Company | Amarillo, TX 79110 | Oil & Gas Operator | Mar 2015 |
| 6857 | Crouch, Eugene Louis | Lockhart, TX 78644 | Oil & Gas Operator | Apr 1999 |
| 6858 | Crow Creek Operating Co II LLC | Houston, TX 77252 | Oil & Gas Operator | Nov 2011 |
| 6859 | Crow Creek Operating Co III LLC | Tulsa, OK 74137-8432 | Oil & Gas Operator | Apr 2015 |
| 6860 | Crow Oil LLC | Tulsa, OK 74133-2914 | Oil & Gas Operator | Sep 2019 |
| 6861 | Crow, David | Shreveport, LA 71106 | Oil & Gas Operator | May 2001 |
| 6862 | Crow, Donald | Gerry, NY 14740 | Gas Operator | Dec 2023 |
| 6863 | Crow-Eason | | Oil & Gas Operator | Feb 1984 |
| 6864 | Crow-Gulf Coast Venture | | Oil & Gas Operator | Aug 1985 |
| 6865 | Crow-Pittman | | Oil Operator | Aug 1993 |
| 6866 | Crowder Oil Co. | | Oil Operator | Sep 2008 |
| 6867 | Crowder Oil L.L.C. | | Oil Operator | Apr 2015 |
| 6868 | Crowe Drilling C | | Oil & Gas Operator | May 1995 |
| 6869 | Crowheart Energy LLC | Baggs, WY 82321 | Oil & Gas Operator | Aug 2024 |
| 6870 | Crown Central Pet Corp | Bellaire, TX 77401 | Oil & Gas Operator | Dec 2016 |
| 6871 | Crown Central Petroleum Corp | Richmond, TX 77469 | Oil & Gas Operator | Dec 1999 |
| 6872 | Crown Consulting, Inc. | Liberal, KS 67905 | Oil & Gas Operator | Jul 2024 |
| 6873 | Crown Energy Company | Oklahoma City, OK 73106 | Oil & Gas Operator | Sep 2024 |
| 6874 | Crown Energy Partners LLC | Englewood, CO 80112 | Oil & Gas Operator | Sep 2013 |
| 6875 | Crown Equipment Co. | Weatherford, TX 76086 | Oil & Gas Operator | Nov 2024 |
| 6876 | Crown Oil & Gas Co Inc | Labarge, WY 83123 | Oil & Gas Operator | Jan 2023 |
| 6877 | Crown Oil, Inc. | Houston, TX 77002 | Oil Operator | Jan 1999 |
| 6878 | Crown Petroleum Company | Duncan, OK 73534-0938 | Oil & Gas Operator | Jan 2011 |
| 6879 | Crown Petroleum Corp. | Oklahoma City, OK 73106 | Oil & Gas Operator | Nov 2024 |
| 6880 | Crown Well Service Inc | Capon Bridge, WV 26711 | Oil Operator | Jul 2024 |
| 6881 | Crown Zellerbach | | Oil & Gas Operator | May 1986 |
| 6882 | Crown Zellerbach & Newton | | Oil Operator | Apr 1986 |
| 6883 | Crownquest Operating, LLC | Midland, TX 79710 | Oil & Gas Operator | Nov 2024 |
| 6884 | Crozier & Company | Tyler, TX 75703 | Oil & Gas Operator | Jan 2020 |
| 6885 | CRS Energy LLC | Stoneboro, PA 16153 | Oil & Gas Operator | Dec 2023 |
| 6886 | CRT'S, Inc. | Abilene, TX 79605 | Oil & Gas Operator | Aug 2008 |
| 6887 | Crude Kin Oil Company, Inc. | Louisburg, KS 66053 | Oil Operator | Jul 2024 |
| 6888 | Crude Marketing & Trans Inc | Tulsa, OK 74159 | Oil & Gas Operator | Sep 2017 |
| 6889 | Crude Oil Recovery Inc | Loma Linda, CA 92354 | Oil & Gas Operator | Mar 2006 |
| 6890 | Crude Oil, LLC | El Dorado, AR 71730 | Oil & Gas Operator | Oct 2008 |
| 6891 | Crude Operators, L.L.C. | Pampa, TX 79066 | Oil & Gas Operator | Nov 2024 |
| 6892 | Crude Producers | | Oil & Gas Operator | Sep 1988 |
| 6893 | Crude Production Company | Clyde, TX 79510 | Oil & Gas Operator | Nov 2024 |
| 6894 | Crude Resources | Sapulpa, OK 74066 | Oil & Gas Operator | Mar 2008 |
| 6895 | Crude Resources, Inc. | Carrollton, TX 75011 | Oil & Gas Operator | Mar 2008 |
| 6896 | Crudewell Drilling, Inc | Albany, KY 42602 | Oil Operator | Dec 2022 |
| 6897 | Crumley* Jack | | Oil Operator | Aug 2018 |
| 6898 | Crump Operating | Henrietta, TX 76365 | Oil & Gas Operator | Nov 2024 |
| 6899 | Crump Petroleum Corp | Midland, TX 79710 | Oil & Gas Operator | Feb 1999 |
| 6900 | Crumpler Oil | | Oil & Gas Operator | May 2024 |