| 801 | French R B Exploration Co | Wichita Falls, TX 76308 | Oil Operator | Dec 1991 |
| 802 | French R E Oil C | | Oil Operator | Feb 1994 |
| 803 | Frerichs, Everett | | Oil Operator | Dec 2022 |
| 804 | Freshwater, Harold | Walker, WV 26180-0000 | Oil & Gas Operator | Dec 2021 |
| 805 | Fresno Oil Company | Iowa Park, TX 76367 | Oil & Gas Operator | Apr 2024 |
| 806 | Frey Well Drilling, Inc. | Alden, NY 14004 | Gas Operator | Dec 2022 |
| 807 | Frickey Investment MGT Co LLC | Lakewood, CO 80215 | Oil & Gas Operator | Feb 2024 |
| 808 | Friedel Petroleum Corp Inc | Edmond, OK 73012-3495 | Gas Operator | Jan 2024 |
| 809 | Friemel & Carpenter, Inc. | Midland, TX 79702 | Oil & Gas Operator | Feb 2002 |
| 810 | Friemel, Paul D. & Assoc., Inc. | Boerne, TX 78006 | Oil & Gas Operator | Mar 2007 |
| 811 | Friendly Energy Services, Inc. | Corpus Chrsti, TX 78410 | Oil & Gas Operator | Apr 2024 |
| 812 | Frierson & Kirchner | | Oil & Gas Operator | Mar 2007 |
| 813 | Frio Engineering Inc. | Houston, TX 77066 | Oil & Gas Operator | Apr 2024 |
| 814 | Frio Exploration Company | Pearland, TX 77588 | Oil & Gas Operator | Dec 2000 |
| 815 | Frio Exploration, L.L.C. | | Gas Operator | Aug 2000 |
| 816 | Frio Oil & Gas, LTD. | Austin, TX 78731 | Oil Operator | Apr 2024 |
| 817 | Frio Production Co. | Alice, TX 78333 | Oil & Gas Operator | Sep 1998 |
| 818 | Frio Resources, LLC | Houston, TX 77024 | Oil & Gas Operator | Apr 2024 |
| 819 | Frisby, William | | Oil Operator | Feb 2012 |
| 820 | Frisco Energy, L.L.C. | Tulsa, OK 74105 | Oil & Gas Operator | Jan 2024 |
| 821 | Frisco Oil Corporation | Tyler, TX 75701 | Oil & Gas Operator | Mar 2000 |
| 822 | Frisco Petroleum Management, LLC | Frisco, TX 75034 | Oil & Gas Operator | Sep 2021 |
| 823 | Fritz & Digman Inc | | Oil Operator | Feb 2024 |
| 824 | Fritz Operating Company | | Oil & Gas Operator | Jun 1990 |
| 825 | Fritzler Resources, Inc. | Fort Morgan, CO 80701 | Oil & Gas Operator | Dec 2023 |
| 826 | Fritzler Trucking, Inc. | Ness City, KS 67560 | Oil Operator | Sep 2007 |
| 827 | Froelich Oil | | Oil Operator | Apr 2010 |
| 828 | Frog Island, L.L.C. | | Oil Operator | Jan 2024 |
| 829 | Fronczek, John & Diane | East Aurora, NY 14052 | Gas Operator | Dec 2022 |
| 830 | Front Street Operating, LLC | Sourlake, TX 77659 | Oil & Gas Operator | Apr 2024 |
| 831 | Frontier Central School District | Hamburg, NY 14075 | Gas Operator | Dec 2022 |
| 832 | Frontier Energy Serv LLC | Enid, OK 73702-1187 | Oil & Gas Operator | Jun 2016 |
| 833 | Frontier Exploration, Inc. | | Oil & Gas Operator | Aug 1984 |
| 834 | Frontier Gas Operating Corp. | Houston, TX 77002 | Oil & Gas Operator | Jul 1998 |
| 835 | Frontier Land Company, Inc. | Leawood, KS 66206 | Oil Operator | Sep 2008 |
| 836 | Frontier Oil Com | | Oil & Gas Operator | May 1995 |
| 837 | Frontier Oil Company | | Oil Operator | Oct 1999 |
| 838 | Frontier Operating Corporation | Albany, TX 76430 | Oil & Gas Operator | Apr 2024 |
| 839 | Frontier Resources, Inc. | Dallas, TX 75214 | Oil & Gas Operator | Apr 2024 |
| 840 | Frontier, Inc. | | Oil Operator | Oct 1998 |
| 841 | Frost Black Creek Oil & Gas Production LLC | Frazeysburg, OH 43822 | Oil & Gas Operator | Dec 2023 |
| 842 | Frost Brothers Resources, LLLP | Fort Worth, TX 76101 | Gas Operator | Apr 2024 |
| 843 | Frost R Z & Assoc Inc | Chauncey, OH 45719-75-75 | Oil & Gas Operator | Dec 1988 |
| 844 | Frost, C.M., P.M. & V.W. | Simonton, TX 77476 | Oil & Gas Operator | Feb 2000 |
| 845 | Frost, William B. And Lucile C. | Sinclairville, NY 14782 | Gas Operator | Dec 2022 |
| 846 | Frost,Cyrus B.,Jr.& Fleming, WM. | Eastland, TX 76448 | Oil & Gas Operator | May 2004 |
| 847 | Frostman Oil Corp | Hope, NM 882501567 | Oil & Gas Operator | Mar 2008 |
| 848 | Frostwood Energy, LLC | Houston, TX 77219 | Oil & Gas Operator | Apr 2024 |
| 849 | Fruehauf Antrim LP | | Gas Operator | Jan 2005 |
| 850 | Fruehauf H R Jr | | Gas Operator | Jan 2004 |
| 851 | Fruehauf Janet A Dba Top O Michigan Resources | | Gas Operator | Jan 2004 |
| 852 | Fruehauf LLC | Gaylord, MI 49735 | Oil Operator | Feb 2005 |
| 853 | Fruitvale Properties | | Oil & Gas Operator | Dec 1990 |
| 854 | FTC Consulting, LLC | Graham, TX 76450 | Oil & Gas Operator | Apr 2024 |
| 855 | FTM Incorporated | Weatherford, TX 76086 | Gas Operator | Apr 2024 |
| 856 | Fuchs Sam Trust | Taos, NM 87571-6201 | Oil Operator | Dec 2000 |
| 857 | Fuego Energy, LLC | Fort Worth, TX 76136 | Oil Operator | Apr 2024 |
| 858 | Fuel Explor Inc (Fuelex) | | Oil & Gas Operator | Sep 1998 |
| 859 | Fuel Exploration Inc | Denver, CO 80295 | Oil & Gas Operator | Jan 1992 |
| 860 | Fuel Gas Technology, Inc | Westfield, NY 14787 | Gas Operator | Dec 2022 |
| 861 | Fuel Products, Inc. | Midland, TX 79702 | Oil Operator | Mar 2002 |
| 862 | Fuel Resources Development Co | Denver, CO 80202 | Oil & Gas Operator | Feb 1994 |
| 863 | Fueled Resources Inc | Boyd, TX 76023 | Oil & Gas Operator | Apr 2024 |
| 864 | Fugo Services Inc | McAlester, OK 74502-1429 | Oil & Gas Operator | Feb 1999 |
| 865 | Fuji Resources Production Co,Inc | Houston, TX 77036 | Oil & Gas Operator | Feb 2000 |
| 866 | Fuksa Investments Inc | Hennessey, OK 73742-0291 | Oil & Gas Operator | Jan 2024 |
| 867 | Ful-Hill Oil & Gas, Inc. | Marshall, TX 75670 | Oil & Gas Operator | Aug 2003 |
| 868 | Ful-Hill Oil & Gas, L.L.P. | Overton, TX 75684 | Oil & Gas Operator | Jun 2016 |
| 869 | Fulcrum Energy Operating LLC | | Oil & Gas Operator | Feb 2024 |
| 870 | Fulcrum Exploration LLC | Flower Mound, TX 75028 | Oil & Gas Operator | Jan 2024 |
| 871 | Fulfer Oil & Cattle LLC | Jal, NM 88252 | Oil & Gas Operator | Feb 2024 |
| 872 | Fulfer Oil And Cattle Co. | Jal, NM 88252 | Oil & Gas Operator | Apr 2024 |
| 873 | Fulfer, O. L. Operating Co., Inc | Iowa Park, TX 76367 | Oil & Gas Operator | Nov 1999 |
| 874 | Fuller Energy, Inc. | Midland, TX 79702 | Oil & Gas Operator | Dec 1995 |
| 875 | Fuller Oil | Iola, KS 66749 | Oil Operator | Jun 2001 |
| 876 | Fuller Operating Company | Lubbock, TX 79408 | Oil & Gas Operator | Mar 2008 |
| 877 | Fuller Petroleum Inc | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 878 | Fuller Production, Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 2024 |
| 879 | Fullerton Energy Corporation | Dallas, TX 75230 | Oil & Gas Operator | Apr 2002 |
| 880 | Fullerton, B. N. | San Angelo, TX 76904 | Oil & Gas Operator | Jul 1994 |
| 881 | Fullspike Energy LLC | Boyd, TX 76023 | Oil & Gas Operator | Apr 2024 |
| 882 | Fulmer Valley Resources, LTD. | Wellsville, NY 14895 | Oil & Gas Operator | Dec 2022 |
| 883 | Fulshear Oil & Gas Partners LP | Houston, TX 77002 | Gas Operator | Apr 2018 |
| 884 | Fulton Enterprises | Artesia, NM 88211 | Oil & Gas Operator | Feb 2024 |
| 885 | Fulton Fuel Company | Shelby, MT 59474 | Oil & Gas Operator | Nov 2023 |
| 886 | Fulton Producing Co. | Shelby, MT 59474-0603 | Oil & Gas Operator | Feb 2005 |
| 887 | Fulton, William M. | Shelby, MT 59474 | Oil & Gas Operator | Feb 2005 |
| 888 | Fultz Oil Company | Fort Worth, TX 76121 | Oil & Gas Operator | Dec 1995 |
| 889 | Fun Investments, L.L.C. | | Oil & Gas Operator | Dec 2023 |
| 890 | Fundare Resources Operating Company LLC | | Oil & Gas Operator | Feb 2024 |
| 891 | Funk Oil & Operating, LLC | Russell, KS 67665 | Oil Operator | Oct 2023 |
| 892 | Furie Operating Alaska, LLC | | Gas Operator | Feb 2024 |
| 893 | Furie Operating, LLC | League City, TX 77573 | Oil & Gas Operator | Nov 2015 |
| 894 | Furr, Roy Estate Of | Midland, TX 79702 | Oil & Gas Operator | Jun 2016 |
| 895 | Furrh Inc. | | Oil Operator | Apr 1994 |
| 896 | Furry Oil & Gas, Inc. | Bangs, TX 76823 | Oil & Gas Operator | Apr 2024 |
| 897 | Furry Operating Account | Brownwood, TX 76804 | Oil & Gas Operator | Aug 2003 |
| 898 | Furry Producing Company | Brownwood, TX 76801 | Oil & Gas Operator | Apr 2024 |
| 899 | Furry, Myrl M. | Brownwood, TX 76801 | Oil & Gas Operator | Dec 2003 |
| 900 | Further Developm | | Oil Operator | Apr 1986 |