| 5901 | CM5 Resources, LLC | Artesia, NM 88211 | Oil & Gas Operator | May 2026 |
| 5902 | CMF Oil & Gas Production LLC | Walhonding, OH 43843 | Oil & Gas Operator | Dec 2025 |
| 5903 | Cmint Productions LLC | Dallas, TX 75248-2643 | Oil Operator | Oct 2021 |
| 5904 | CML Exploration, LLC | Austin, TX 78746 | Oil & Gas Operator | Aug 2026 |
| 5905 | Cmo Inc. | | Oil Operator | Jun 2026 |
| 5906 | Cmo LLC | Mannford, OK 74044 | Oil & Gas Operator | Apr 2026 |
| 5907 | CMR Energy, L.P. | Houston, TX 77077 | Oil & Gas Operator | Aug 2026 |
| 5908 | CMR Oil, LLC | McKinney, TX 75072 | Oil Operator | Aug 2026 |
| 5909 | CMR Operating LLC | Tulsa, OK 74135-2653 | Oil & Gas Operator | Jun 2018 |
| 5910 | CMS Energy Inc | Dallas, TX 75287 | Oil & Gas Operator | Apr 2026 |
| 5911 | CMS Nomeco Oil & Gas Co. | Jackson, MI 49201 | Oil & Gas Operator | Jan 2015 |
| 5912 | CMS Oil And Gas Company | Jackson, MI 49201 | Oil & Gas Operator | Oct 2002 |
| 5913 | CMT Oil & Gas Company Inc | Tulsa, OK 74133-6724 | Oil & Gas Operator | Mar 2026 |
| 5914 | CMT Operating LLC | Cleveland, OK 74020-0113 | Oil & Gas Operator | Mar 2015 |
| 5915 | CMW Oil Company | | Oil & Gas Operator | Dec 1976 |
| 5916 | CMX Inc Of Kansas | Wichita, KS 67206-2561 | Oil & Gas Operator | May 2026 |
| 5917 | CMX, Inc. | Wichita, KS 67206 | Oil & Gas Operator | Apr 2026 |
| 5918 | CNC Oil Co., Inc. | | Oil Operator | Aug 1991 |
| 5919 | CNG Development Co | | Oil & Gas Operator | Dec 2008 |
| 5920 | CNG Producing | New Orleans, LA 70112-6000 | Oil & Gas Operator | Jun 2000 |
| 5921 | CNG Producing Co.-Tulsa Div. | | Oil & Gas Operator | Jun 1986 |
| 5922 | CNG Producing Company | New Orleans, LA 70112 | Oil & Gas Operator | Dec 2015 |
| 5923 | CNS Energy, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Nov 2010 |
| 5924 | CNX Gas Company LLC | Canonsburg, PA 15317 | Oil & Gas Operator | May 2026 |
| 5925 | Co Energy | Benbrook, TX 76126 | Oil & Gas Operator | Aug 2026 |
| 5926 | Co-Co Incorporat | | Oil Operator | Oct 1989 |
| 5927 | Co-Co Oil, Inc. | Lubbock, TX 79407 | Oil & Gas Operator | Aug 2003 |
| 5928 | Co-St Oil Operating Co Inc | Enid, OK 73706 | Oil & Gas Operator | Apr 1997 |
| 5929 | Co-Wil-Co, Incorporated | | Oil Operator | Dec 1990 |
| 5930 | Coachman Energy Operating Co, LLC | Englewood, CO 80111 | Oil Operator | May 2024 |
| 5931 | Coal Creek Energy, LLC | Overland Park, KS 66221 | Oil Operator | Dec 2019 |
| 5932 | Coal Creek Minerals LLC | Northglenn, CO 80234 | Gas Operator | Feb 2012 |
| 5933 | Coal Gas Recovery II LLC | Waynesburg, PA 15370 | Gas Operator | Dec 2017 |
| 5934 | Coal Gas Recovery LLC | | Gas Operator | Dec 2012 |
| 5935 | Coal Gas Recovery LP | Linthicum Heights, MD 21090-2227 | Gas Operator | Dec 2010 |
| 5936 | Coal Gas Transportation LLC | Cadiz, OH 43907 | Gas Operator | Dec 2016 |
| 5937 | Coal Oil & Gas Company | Ada, OK 74820 | Oil & Gas Operator | May 2026 |
| 5938 | Coal Oil Inc. | | Oil & Gas Operator | Dec 1997 |
| 5939 | Coaleum Corporation | Dallas, TX 75205 | Oil & Gas Operator | Jan 2001 |
| 5940 | Coalinga Corporation | Houston, TX 77002 | Oil & Gas Operator | May 1999 |
| 5941 | Coaltech, Inc. | | Gas Operator | Jun 1993 |
| 5942 | Coast David | Bartlesville, OK 74006-0407 | Oil & Gas Operator | Apr 2026 |
| 5943 | Coast Exploration Co. | | Oil & Gas Operator | Nov 1997 |
| 5944 | Coast Supply Company LTD. | | Oil & Gas Operator | Dec 1991 |
| 5945 | Coastal Bend Petroleum Corp. | Corpus Chrsti, TX 78427 | Oil & Gas Operator | Dec 2002 |
| 5946 | Coastal Chem Inc | Midvale, UT 84047 | Oil & Gas Operator | Aug 2003 |
| 5947 | Coastal Expanse Oil & Gas | Austin, TX 78704 | Oil & Gas Operator | Aug 2026 |
| 5948 | Coastal Investments Inc. | El Campo, TX 77437 | Oil & Gas Operator | Aug 2026 |
| 5949 | Coastal Management Corporation | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 5950 | Coastal Minerals, Inc. | | Oil Operator | Aug 1991 |
| 5951 | Coastal New Mexico MGMT LLC | Carlsbad, NM 88220 | Oil & Gas Operator | Aug 2026 |
| 5952 | Coastal Oil & Ga | | Oil & Gas Operator | Oct 1996 |
| 5953 | Coastal Oil & Gas | | Oil & Gas Operator | Jul 1995 |
| 5954 | Coastal Oil & Gas Corp | Houston, TX 77252 | Oil & Gas Operator | Dec 2009 |
| 5955 | Coastal Oils Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Jan 2013 |
| 5956 | Coastal Petro Corp | Oil City, PA 16301-6327 | Oil & Gas Operator | Jul 2018 |
| 5957 | Coastal Plains Energy Inc | Oklahoma City, OK 73112 | Oil & Gas Operator | Aug 2026 |
| 5958 | Coastal Plains Exploration, LLC | Port Lavaca, TX 77979 | Oil & Gas Operator | Aug 2026 |
| 5959 | Coastal Production Company, Inc. | El Campo, TX 77437 | Oil & Gas Operator | Aug 1995 |
| 5960 | Coastal Production Inc. | | Oil & Gas Operator | Aug 2000 |
| 5961 | Coastal Shoreline Corp. | Corpus Chrsti, TX 78460 | Oil & Gas Operator | Aug 2003 |
| 5962 | Coastal States & Emerald Oil | | Oil & Gas Operator | Dec 1979 |
| 5963 | Coastal States Gas Prod Co | | Oil & Gas Operator | Jun 1996 |
| 5964 | Coastland Operations, LLC | Dallas, TX 75287 | Oil & Gas Operator | Aug 2026 |
| 5965 | Coastline Exploration, Inc. | Stafford, TX 77477 | Oil & Gas Operator | Aug 2026 |
| 5966 | Coastline Operating, L.L.C. | Houston, TX 77027 | Oil & Gas Operator | Dec 2006 |
| 5967 | Coates Energy Interests, LTD. | San Antonio, TX 78217 | Oil & Gas Operator | Aug 1997 |
| 5968 | Coates Energy Trust | San Antonio, TX 78209 | Oil & Gas Operator | Aug 2008 |
| 5969 | Coats Energy, Inc. | Wichita, KS 67201 | Oil & Gas Operator | Apr 2026 |
| 5970 | Cobalt Energy LLC | Wichita, KS 67202 | Oil & Gas Operator | Apr 2026 |
| 5971 | Cobalt Environmental Solutions LLC | Oklahoma City, OK 73101-0249 | Oil Operator | Jun 2019 |
| 5972 | Cobalt Operating, LLC | Midland, TX 79710 | Oil & Gas Operator | Jun 2026 |
| 5973 | Cobb, E M | Henderson, KY 42420 | Oil Operator | Dec 2019 |
| 5974 | Cobb, Maurice W | | Oil Operator | Dec 2024 |
| 5975 | Cobb, Maurice W Dba M W C Oil Co | Eddyville, KY 42038 | Oil Operator | Dec 2019 |
| 5976 | Cobbs Brothers Oil & Gas | Corpus Chrsti, TX 78476 | Oil & Gas Operator | Jun 2009 |
| 5977 | Cobham Gas Industries, Inc. | | Oil & Gas Operator | Dec 2006 |
| 5978 | Cobopco Inc | Tulsa, OK 74103-4391 | Oil & Gas Operator | Feb 1997 |
| 5979 | Cobra Oil & Gas | | Oil & Gas Operator | Jul 1995 |
| 5980 | Cobra Oil & Gas Corporation | Wichita Falls, TX 76307 | Oil & Gas Operator | Aug 2026 |
| 5981 | Cobra Operating Company | Houston, TX 77002 | Oil & Gas Operator | Sep 2003 |
| 5982 | Cobra Petroleum Production Corp | | Oil & Gas Operator | Dec 2018 |
| 5983 | Cobra Resources LLC | North Jackson, OH 44451 | Oil & Gas Operator | Dec 2025 |
| 5984 | Cobra-Lyons-Hilliard-Watson | | Oil & Gas Operator | Jun 1992 |
| 5985 | Cochise Energy Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 5986 | Cochon Properties, LLC | | Oil & Gas Operator | Aug 2016 |
| 5987 | Cochran Industrial Corporation | Cushing, OK 74023-1427 | Oil & Gas Operator | Apr 2001 |
| 5988 | Cochrane Resources, Inc. | Roosevelt, UT 84066 | Oil & Gas Operator | May 2026 |
| 5989 | Cockburn Oil Corporation | Lubbock, TX 79493 | Oil & Gas Operator | Jul 2005 |
| 5990 | Cockrell Oil Corporation | Houston, TX 77002-7348 | Oil & Gas Operator | Feb 2001 |
| 5991 | Cockrell Production Co., Inc. | Irving, TX 75014 | Oil & Gas Operator | Aug 2026 |
| 5992 | Cockriel Petroleum | | Oil & Gas Operator | Dec 1993 |
| 5993 | Coda Energy, Inc. | Dallas, TX 75231 | Oil & Gas Operator | Aug 1998 |
| 5994 | Cody & Krysti Hunsperger | Osawatomie, KS 66064 | Oil Operator | Mar 2026 |
| 5995 | Cody C. Beasley | | Oil & Gas Operator | Apr 1987 |
| 5996 | Cody Company | Amarillo, TX 79121 | Oil & Gas Operator | Mar 2020 |
| 5997 | Cody Energy LLC | Houston, TX 77024 | Oil & Gas Operator | Jun 2020 |
| 5998 | Cody Energy, Inc. | Houston, TX 77077 | Oil & Gas Operator | Jun 2026 |
| 5999 | Cody Operating, Inc. | | Oil & Gas Operator | May 2026 |
| 6000 | Cody Resources, Inc. | Midland, TX 79705 | Oil & Gas Operator | Sep 2002 |