| 9901 | F & G Exploration, LLC | Ada, MI 49301 | Gas Operator | Dec 2024 |
| 9902 | F & G Management LLC | Claremore, OK 74019-0392 | Oil Operator | Apr 2025 |
| 9903 | F & H Production | | Oil & Gas Operator | Apr 2014 |
| 9904 | F & H Production Service | | Oil & Gas Operator | Apr 1987 |
| 9905 | F & J Oil Company, L.L.C. | | Oil Operator | Jun 2025 |
| 9906 | F & J Oil LLC | Newcastle, WY 82701 | Oil & Gas Operator | Oct 2015 |
| 9907 | F & J Petroleum Company | Milano, TX 76556 | Oil Operator | Oct 2025 |
| 9908 | F & L Petroleum, LLC | | Oil & Gas Operator | Apr 2019 |
| 9909 | F & M Oil & Gas Co | Midland, TX 79702 | Oil & Gas Operator | Feb 2000 |
| 9910 | F & M Oil Compan | | Oil & Gas Operator | Feb 1993 |
| 9911 | F & M Oil Company Inc | Pettus, TX 78146 | Oil & Gas Operator | Oct 2025 |
| 9912 | F & R Oil Co. | Dallas, TX 75205 | Oil & Gas Operator | May 2005 |
| 9913 | F & S Energy LLC | Crescent, OK 73028 | Oil & Gas Operator | Jun 2025 |
| 9914 | F & S Oil | | Oil Operator | Dec 2021 |
| 9915 | F & S Petroleum, L.L.C. | Lebanon, MO 65536 | Oil & Gas Operator | Oct 2025 |
| 9916 | F B Operating, Inc. | Montague, TX 76251 | Oil & Gas Operator | Aug 2003 |
| 9917 | F C D Oil Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Feb 1995 |
| 9918 | F D & Jack Oil Company | Muskogee, OK 74402-1444 | Oil & Gas Operator | May 2015 |
| 9919 | F Davis Oil & Gas LLC | Cleveland, OK 74020 | Oil Operator | Apr 2025 |
| 9920 | F E W Oil Compan | | Oil Operator | Jul 1993 |
| 9921 | F H Walsh Jr Operating Co Inc | | Oil & Gas Operator | Jul 1995 |
| 9922 | F Howard Walsh Jr | | Oil & Gas Operator | Aug 1992 |
| 9923 | F M Hoel | | Oil & Gas Operator | Dec 2000 |
| 9924 | F O & G LLC | Pawhuska, OK 74056-5075 | Oil Operator | Apr 2022 |
| 9925 | F P C Disposal Inc | El Reno, OK 73036-5501 | Oil Operator | Apr 2003 |
| 9926 | F P I Antrim One Inc | | Gas Operator | Nov 1991 |
| 9927 | F R Etchen, Jr | | Oil & Gas Operator | Sep 1985 |
| 9928 | F W Rabalais, Inc. | | Oil & Gas Operator | Dec 2014 |
| 9929 | F Y B Investments, Inc. | Midland, TX 79711 | Oil & Gas Operator | Sep 1995 |
| 9930 | F&H Operating Company LLC | Wichita Falls, TX 76308 | Oil & Gas Operator | Oct 2025 |
| 9931 | F-B Oil, LP | Decatur, TX 76234 | Oil Operator | Aug 2015 |
| 9932 | F-W Oil Interests, Inc. | Houston, TX 77024 | Oil & Gas Operator | Dec 2006 |
| 9933 | F. B. R. Production Company | Pampa, TX 79066 | Oil & Gas Operator | May 2000 |
| 9934 | F. E. Hargraves | | Oil Operator | Mar 1983 |
| 9935 | F. H. B. Company | Holliday, TX 76366 | Oil & Gas Operator | Oct 2025 |
| 9936 | F.A.S. Environmental Services, L.L.C. | | Oil Operator | Jan 2025 |
| 9937 | F.D. Looman | Sedan, KS 67361 | Oil Operator | Jun 2008 |
| 9938 | F.E.Hargraves &Sons DRL.Co.Inc. | | Oil & Gas Operator | Mar 1992 |
| 9939 | F.E.W. Oil Co. | Oceanside, CA 92058 | Oil Operator | Oct 2012 |
| 9940 | F.G. Holl Co., LLC | Wichita, KS 67206 | Oil & Gas Operator | Jun 2025 |
| 9941 | F.I.G. Energy, LLC | Livingston, TX 77399 | Oil & Gas Operator | Oct 2025 |
| 9942 | F.M.C. Operating, Inc. | Austin, TX 78750 | Oil & Gas Operator | Oct 1996 |
| 9943 | F.S.M. Oil Co. | | Oil Operator | Aug 1979 |
| 9944 | Fabco | Big Lake, TX 76932 | Oil & Gas Operator | Oct 2025 |
| 9945 | Fabela Operating, LLC | Olney, TX 76374 | Oil Operator | Oct 2025 |
| 9946 | Fackrell & Associates LLC | Ardmore, OK 73402-1452 | Oil Operator | Apr 2025 |
| 9947 | Factor, J. S. Pridmore | Spencer, WV 25276-0000 | Gas Operator | Dec 2017 |
| 9948 | Fadely, Dale Leon | Sedan, KS 67361 | Oil & Gas Operator | Dec 2009 |
| 9949 | Fadem Oil Company | Tulsa, OK 74135 | Oil Operator | Jan 1996 |
| 9950 | Fae II Operating LLC | Houston, TX 77079 | Oil & Gas Operator | Aug 2025 |
| 9951 | Fagadau Energy Corporation | Dallas, TX 75206 | Oil & Gas Operator | Apr 2006 |
| 9952 | Fagan Engineering | Shawnee, OK 74801-3021 | Oil & Gas Operator | Oct 1994 |
| 9953 | Fahey Oil & Gas | | Oil & Gas Operator | Jul 2021 |
| 9954 | Fahey, John R | | Oil Operator | Dec 2024 |
| 9955 | Fahrenheit Petroleum Co Inc | | Oil & Gas Operator | Mar 2015 |
| 9956 | Fail W T Inc | | Oil & Gas Operator | Mar 2015 |
| 9957 | Fair Banks Enterprises | Chanute, KS 66720 | Oil Operator | Mar 2013 |
| 9958 | Fair Energies Inc | | Oil Operator | Oct 2024 |
| 9959 | Fair Oil Company | Tyler, TX 75710 | Oil & Gas Operator | Dec 2000 |
| 9960 | Fair Oil, LC | Tyler, TX 75710 | Oil & Gas Operator | Oct 2001 |
| 9961 | Fair Oil, LTD. | Tyler, TX 75710 | Oil & Gas Operator | Oct 2025 |
| 9962 | Fair Operating, Inc. | Boerne, TX 78015 | Oil & Gas Operator | Oct 2025 |
| 9963 | Fair Seas Enterp | | Oil & Gas Operator | Jun 1988 |
| 9964 | Fairchild Explor | | Oil & Gas Operator | Apr 1995 |
| 9965 | Fairchild Oil Corporation | Edmond, OK 73013 | Oil & Gas Operator | Oct 1994 |
| 9966 | Fairchild Well Service Inc | Ponca City, OK 74602-0470 | Oil & Gas Operator | Jun 2006 |
| 9967 | Fairchild, Bob | Kingman, KS 67068 | Oil Operator | Jan 2001 |
| 9968 | Fairfield Energy Corp. | Dallas, TX 75205 | Oil & Gas Operator | Oct 2025 |
| 9969 | Fairfield Oil & Gas Corp | Edmond, OK 73083 | Oil & Gas Operator | Nov 2021 |
| 9970 | Fairman Corp | Du Bois, PA 15801-0288 | Oil & Gas Operator | Dec 2024 |
| 9971 | Fairman Drilling Co | Du Bois, PA 15801-0288 | Oil & Gas Operator | Dec 2002 |
| 9972 | Fairman Oil & Gas Co Inc | Oil City, PA 16301 | Oil & Gas Operator | Dec 1991 |
| 9973 | Fairview Producing Corp. | | Oil Operator | Jul 2001 |
| 9974 | Fairview Production Co LLC | Davis, OK 73030 | Oil & Gas Operator | Jul 2025 |
| 9975 | Fairway Links Energy, Inc. | Tulsa, OK 74114 | Oil & Gas Operator | Aug 2016 |
| 9976 | Fairway Operating, Inc. | Lake Jackson, TX 77566 | Oil & Gas Operator | Oct 2025 |
| 9977 | Fairway Petroleu | | Oil & Gas Operator | Dec 1994 |
| 9978 | Fairway Petroleum, Inc. | Stafford, TX 77497 | Oil & Gas Operator | Nov 2001 |
| 9979 | Fairway Resources Inc | Jamestown, NY 14701 | Oil & Gas Operator | Dec 2024 |
| 9980 | Fairway Resources Op III, LLC | Southlake, TX 76092 | Oil & Gas Operator | Oct 2025 |
| 9981 | Fairway Resources Operating III LLC | Houston, TX 77002-2728 | Oil & Gas Operator | Jun 2025 |
| 9982 | Fairway Resources Operating, LLC | Southlake, TX 76092 | Oil & Gas Operator | Aug 2022 |
| 9983 | Fairways Exploration & Production, LLC | Houston, TX 77057 | Oil & Gas Operator | Aug 2025 |
| 9984 | Fairways Offshore Expl Inc | Houston, TX 77040 | Oil & Gas Operator | Mar 2016 |
| 9985 | Fairways Spec. Sales & Serv Inc | Houston, TX 77040 | Oil & Gas Operator | Sep 2004 |
| 9986 | Faith Energy Exploration, Inc. | Ennis, TX 75119 | Oil & Gas Operator | Mar 2019 |
| 9987 | Faith Energy, L.L.C. | | Oil & Gas Operator | Jan 2025 |
| 9988 | Faith Oil Of Hosston | | Oil Operator | Feb 1996 |
| 9989 | Faith Partners I | | Oil Operator | Feb 1989 |
| 9990 | Faith Petroleum, Inc. | Arkansas City, KS 67005 | Oil & Gas Operator | Jun 2025 |
| 9991 | Faith Production LLC | Holdenville, OK 74848 | Oil & Gas Operator | Jun 2025 |
| 9992 | Faith Trading, LLC | Lovington, NM 88260 | Oil Operator | Aug 2025 |
| 9993 | Falco S & D, Inc. | Shreveport, LA 71107 | Oil & Gas Operator | Apr 1998 |
| 9994 | Falcon Bay Energy, L.L.C | Midland, TX 79701 | Gas Operator | Jan 2005 |
| 9995 | Falcon Bay Operations, LLC | Midland, TX 79701 | Oil & Gas Operator | Oct 2007 |
| 9996 | Falcon Creek Resources, Inc. | Tulsa, OK 74137 | Oil & Gas Operator | Apr 2001 |
| 9997 | Falcon Energy Co | | Oil Operator | Apr 1992 |
| 9998 | Falcon Energy LLC | Fruita, CO 81521 | Oil & Gas Operator | Sep 2025 |
| 9999 | Falcon Engineering Company, Inc. | Big Rapids, MI 493070818 | Oil & Gas Operator | Jul 2001 |
| 10000 | Falcon Explorati | | Oil & Gas Operator | Apr 1995 |