| 3801 | Federal Energy Development Co. | Dallas, TX 75205 | Oil & Gas Operator | Mar 2011 |
| 3802 | Federal Oil, Inc. | Big Spring, TX 79721 | Oil & Gas Operator | Jul 2025 |
| 3803 | Federer, H. C. | Amarillo, TX 79101 | Oil & Gas Operator | Dec 1993 |
| 3804 | Felderhoff Production Company | Muenster, TX 76252 | Oil & Gas Operator | Jul 2025 |
| 3805 | Felix Energy Holdings II, LLC | Tulsa, OK 74172 | Oil & Gas Operator | Apr 2020 |
| 3806 | Felty Drilling Co. Inc | Burkburnett, TX 76354 | Oil & Gas Operator | Jul 2025 |
| 3807 | Felty Production, Inc. | Burkburnett, TX 76354 | Oil Operator | Jul 2025 |
| 3808 | Felty, F. T. Operating Company | Burkburnett, TX 76354 | Oil & Gas Operator | Jul 2018 |
| 3809 | Fender Expl & Prod Co., L.L.C. | Tyler, TX 75710 | Oil & Gas Operator | Sep 2004 |
| 3810 | Fenix Petroleum Group LLC | Washington, TX 77880 | Oil Operator | Jul 2019 |
| 3811 | Fenn, Bill Inc. | Giddings, TX 78942 | Oil & Gas Operator | Mar 2008 |
| 3812 | Fenno, Tom Prod. | FT Collins, CO 80524 | Oil & Gas Operator | Mar 2018 |
| 3813 | Fenoglio Energy Production, LLC | Nocona, TX 76255 | Oil Operator | Jul 2025 |
| 3814 | Fenoglio Oil Company | Nocona, TX 76255 | Oil Operator | Jul 2025 |
| 3815 | Fenoglio, Donnie Oil Company | Nocona, TX 76255 | Oil & Gas Operator | Feb 2014 |
| 3816 | Fenway Energy Development Co. | Midland, TX 79701 | Oil & Gas Operator | Jul 2025 |
| 3817 | Fergus Oil & Gas, LLC | Allen, TX 75013 | Oil Operator | Jul 2025 |
| 3818 | Ferguson Oil & Gas Inc. | Austin, TX 78746 | Oil & Gas Operator | Jul 2025 |
| 3819 | Ferguson, S. M. Jr., Inc. | Dallas, TX 75218 | Oil & Gas Operator | Jul 2025 |
| 3820 | Ferguson-Burns Leasing Co. | Rockdale, TX 76567 | Oil & Gas Operator | Oct 2007 |
| 3821 | Ferreira Oil Properties LLC | Carefree, AZ 85377 | Oil Operator | Apr 2014 |
| 3822 | Fesco, LTD. | Alice, TX 78332 | Oil Operator | Jul 2025 |
| 3823 | Ffa Petroleum Services | Victoria, TX 77903 | Oil & Gas Operator | Sep 2001 |
| 3824 | Ffa Petroleum Services, Inc. | Boerne, TX 78006 | Oil & Gas Operator | Feb 2018 |
| 3825 | FGB Energy, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Aug 2017 |
| 3826 | FH Operation Company, Inc. | Dallas, TX 75381 | Oil & Gas Operator | Apr 2005 |
| 3827 | Fidelity Energy Co. | Gainesville, TX 76241 | Oil & Gas Operator | Apr 2008 |
| 3828 | Fidelity Explor. & Prod. Co. | Denver, CO 80202 | Oil & Gas Operator | Nov 2015 |
| 3829 | Fidelity Exploration & Production Company | Denver, CO 80203 | Oil & Gas Operator | Jun 2025 |
| 3830 | Fidelity Petroleum Corporation | Plano, TX 75074 | Oil & Gas Operator | Jul 2025 |
| 3831 | Field Petroleum Corp. | San Antonio, TX 78216 | Oil & Gas Operator | Jul 2025 |
| 3832 | Field Production Company | Cleburne, TX 76033 | Oil & Gas Operator | Mar 2023 |
| 3833 | Fields Exploration, Inc. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Aug 2015 |
| 3834 | Fields Oil & Gas Company, LLC | Dallas, TX 75230 | Oil & Gas Operator | Jul 2025 |
| 3835 | Fields, Bert, Jr. | Dallas, TX 75230 | Oil & Gas Operator | Apr 2015 |
| 3836 | Fieldwood Energy LLC | Houston, TX 77042 | Oil & Gas Operator | Dec 2024 |
| 3837 | Fieldwood Energy Offshore LLC | Houston, TX 77042 | Oil & Gas Operator | Jul 2025 |
| 3838 | Fieldwood Onshore LLC | Houston, TX 77098 | Oil & Gas Operator | Jul 2025 |
| 3839 | Fiesta Energy LLC | Midland, TX 79705 | Oil & Gas Operator | Jul 2025 |
| 3840 | Figgie Natural Resources | Wickliffe, OH 44092 | Oil & Gas Operator | Oct 1995 |
| 3841 | Figure 3 Operating LLC | Tyler, TX 75703 | Oil Operator | Dec 2024 |
| 3842 | Fiml Natural Resources, LLC | Denver, CO 80202 | Oil & Gas Operator | Aug 2014 |
| 3843 | Fin Energy, LLC | Wichita Falls, TX 76308 | Oil Operator | Jul 2025 |
| 3844 | Fina Oil And Chemical Company | Dallas, TX 75221 | Oil & Gas Operator | May 2019 |
| 3845 | Finaly Resources LLC | Sunset Beach, CA 90742 | Oil & Gas Operator | Jul 2025 |
| 3846 | Finch-Crestmont | Houston, TX 77027 | Oil & Gas Operator | Oct 2012 |
| 3847 | Finger Oil & Gas, Inc. | Castroville, TX 78009 | Oil & Gas Operator | May 2021 |
| 3848 | Finkelstein, Jack, Trustee | Houston, TX 77027 | Oil & Gas Operator | Apr 2007 |
| 3849 | Finlay Energy, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Jul 1999 |
| 3850 | Finley Oil Company, LLC | Liberty, TX 77575 | Oil Operator | Jul 2025 |
| 3851 | Finley Resources Inc | Fort Worth, TX 76113 | Oil & Gas Operator | Jul 2025 |
| 3852 | Finnell Oil Co. | Wichita Falls, TX 76308 | Oil & Gas Operator | Sep 2009 |
| 3853 | Finnell Oil Services, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Jul 2025 |
| 3854 | Firebird Energy II LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Jul 2025 |
| 3855 | Firebird Energy LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Nov 2022 |
| 3856 | Firerock Company | Abilene, TX 79602 | Oil & Gas Operator | Jul 2025 |
| 3857 | Fireside Oil And Gas, Inc. | West Monroe, LA 71294 | Oil & Gas Operator | Feb 2002 |
| 3858 | Firewheel Operating, LLC | Midland, TX 79701 | Oil & Gas Operator | Nov 2017 |
| 3859 | First American Operating Co. | Breckenridge, TX 76424 | Oil & Gas Operator | Aug 2006 |
| 3860 | First Aransas Reserves, Inc. | Alvin, TX 77511 | Oil & Gas Operator | Mar 2018 |
| 3861 | First Permian, L.L.C. | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 3862 | First Reserve Oil & Gas Co | Houston, TX 77002 | Oil & Gas Operator | Apr 2000 |
| 3863 | First Rock, Inc. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Jul 2025 |
| 3864 | First Solid Energy Group, LP | Missouri City, TX 77489 | Oil & Gas Operator | Jul 2025 |
| 3865 | First Source Gas, LP | Houston, TX 77010 | Gas Operator | Jan 2006 |
| 3866 | First Source Texas, Inc. | MT Pleasant, MI 48858 | Gas Operator | Nov 2004 |
| 3867 | First Texas Exploration Corp. | Arcadia, LA 71001 | Oil & Gas Operator | Aug 2003 |
| 3868 | Firstrike Energy Corporation | Cleburne, TX 76033 | Oil & Gas Operator | Jan 2025 |
| 3869 | Fischer Operating Corporation | Victoria, TX 77902 | Oil & Gas Operator | Jan 1999 |
| 3870 | Fiscus Drilling Co., Inc. | Clyde, TX 79510 | Oil & Gas Operator | Apr 2015 |
| 3871 | Fishcreek Minerals, LLC | Graham, TX 76450 | Oil & Gas Operator | Jul 2025 |
| 3872 | Fisher Oil Co. | Big Lake, TX 76932 | Oil & Gas Operator | Jul 2025 |
| 3873 | Fisher, Jack Inc. | Abilene, TX 79603 | Oil & Gas Operator | Sep 2001 |
| 3874 | Fisher, L. C. Jr. | Longview, TX 75608 | Oil & Gas Operator | May 1993 |
| 3875 | Fite Oil & Gas, Inc. | Shreveport, LA 71163 | Oil & Gas Operator | Jul 2025 |
| 3876 | Fitts, B.K. Oil & Gas | Bowie, TX 76230 | Oil & Gas Operator | Jul 2025 |
| 3877 | Fitzgerald Production Co. | Oil City, LA 71061 | Oil & Gas Operator | Dec 2024 |
| 3878 | Five D Co | Cactus, TX 79013 | Oil & Gas Operator | Sep 1996 |
| 3879 | Five K Partnership | Graham, TX 76450 | Oil & Gas Operator | Oct 2023 |
| 3880 | Five Star Energy, Inc. | Seguin, TX 78155 | Oil & Gas Operator | May 2025 |
| 3881 | Five States Energy Company | Dallas, TX 75206 | Oil & Gas Operator | Mar 2008 |
| 3882 | Five States Operating Company | Dallas, TX 75206 | Oil & Gas Operator | Feb 2008 |
| 3883 | Five States Operating Company LLC | Dallas, TX 75206 | Oil & Gas Operator | May 2025 |
| 3884 | Five-Jab, Inc. | Tomball, TX 77377 | Oil & Gas Operator | Jul 2025 |
| 3885 | Fiveash Operating Company, Inc. | Christoval, TX 76935 | Oil & Gas Operator | Aug 2003 |
| 3886 | Fivestones Energy LLC | Midland, TX 79710 | Oil & Gas Operator | Jul 2025 |
| 3887 | FJH Oil Company | Muenster, TX 76252 | Oil & Gas Operator | Jul 2025 |
| 3888 | Fjo Energy, LLC | Fairhope, AL 36532 | Oil Operator | Jul 2025 |
| 3889 | Flag Energy, LLC | Centerton, AR 72719 | Oil & Gas Operator | Nov 2018 |
| 3890 | Flairtex Resources, Inc. | Houston, TX 77040 | Oil & Gas Operator | Oct 1998 |
| 3891 | Flamingo Oil & Gas | Luling, TX 78648 | Oil & Gas Operator | Jul 2025 |
| 3892 | Flamingo Operating, LLC | Houston, TX 77084 | Oil & Gas Operator | Jul 2025 |
| 3893 | Flare Oil Inc | Rockport, TX 78382 | Oil & Gas Operator | Jul 2025 |
| 3894 | Flare Resources Inc. | Houston, TX 77002 | Gas Operator | Jun 2006 |
| 3895 | Flash Gas & Oil Southwest, Inc. | Mandeville, LA 70470 | Oil & Gas Operator | Oct 2019 |
| 3896 | Flat Creek Operating Co. | Rockwall, TX 75087 | Oil & Gas Operator | Jun 2004 |
| 3897 | Flat Creek Resources, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | May 2025 |
| 3898 | Flat Top Operating, LLC | Midland, TX 79707 | Oil & Gas Operator | Jul 2025 |
| 3899 | Flatonia Energy, LLC | Dallas, TX 75201 | Oil & Gas Operator | Jul 2025 |
| 3900 | Flavian Oil Company | Dallas, TX 75206 | Gas Operator | Jan 1997 |