| 3901 | Farmer, Hayden | Olney, TX 76374 | Oil & Gas Operator | Feb 1997 |
| 3902 | Farmer, Lewis & Hayden | Olney, TX 76374 | Oil & Gas Operator | Oct 2008 |
| 3903 | Farmers Of Tulsa Energy Corp. | Tulsa, OK 74103 | Oil & Gas Operator | Sep 1997 |
| 3904 | Farrell Oil Company | Lubbock, TX 79424 | Oil & Gas Operator | Feb 2026 |
| 3905 | Farrex, Inc. | Vernon, TX 76384 | Oil & Gas Operator | Oct 2008 |
| 3906 | Farrington, Walter L., Jr. | Tyler, TX 75701 | Oil & Gas Operator | Feb 2002 |
| 3907 | Faseler, Herb | Hondo, TX 78861 | Oil Operator | Feb 2026 |
| 3908 | Fasken Oil And Ranch, LTD. | Midland, TX 79707 | Oil & Gas Operator | Feb 2026 |
| 3909 | Fasken, Barbara | Midland, TX 79701 | Oil & Gas Operator | Dec 1995 |
| 3910 | Faulconer Energy, LLC | Tyler, TX 75711 | Oil & Gas Operator | Feb 2026 |
| 3911 | Faulconer, Vernon E., Inc. | Tyler, TX 75711 | Oil & Gas Operator | Dec 2025 |
| 3912 | FDL Operating, LLC | Judson, TX 75660 | Oil & Gas Operator | Feb 2026 |
| 3913 | Feagan Energy, Inc. | Midland, TX 79710 | Oil & Gas Operator | Feb 2026 |
| 3914 | Fed Operating LLC | Midland, TX 79701 | Oil & Gas Operator | Feb 2026 |
| 3915 | Federal Energy Development Co. | Dallas, TX 75205 | Oil & Gas Operator | Mar 2011 |
| 3916 | Federal Oil, Inc. | Big Spring, TX 79721 | Oil & Gas Operator | Feb 2026 |
| 3917 | Federer, H. C. | Amarillo, TX 79101 | Oil & Gas Operator | Dec 1993 |
| 3918 | Felderhoff Production Company | Muenster, TX 76252 | Oil & Gas Operator | Feb 2026 |
| 3919 | Felix Energy Holdings II, LLC | Tulsa, OK 74172 | Oil & Gas Operator | Apr 2020 |
| 3920 | Felty Drilling Co. Inc | Burkburnett, TX 76354 | Oil & Gas Operator | Feb 2026 |
| 3921 | Felty Production, Inc. | Burkburnett, TX 76354 | Oil Operator | Feb 2026 |
| 3922 | Felty, F. T. Operating Company | Burkburnett, TX 76354 | Oil & Gas Operator | Jul 2018 |
| 3923 | Fender Expl & Prod Co., L.L.C. | Tyler, TX 75710 | Oil & Gas Operator | Sep 2004 |
| 3924 | Fenix Petroleum Group LLC | Washington, TX 77880 | Oil Operator | Jul 2019 |
| 3925 | Fenn, Bill Inc. | Giddings, TX 78942 | Oil & Gas Operator | Mar 2008 |
| 3926 | Fenno, Tom Prod. | FT Collins, CO 80524 | Oil & Gas Operator | Mar 2018 |
| 3927 | Fenoglio Oil Company | Nocona, TX 76255 | Oil Operator | Feb 2026 |
| 3928 | Fenoglio, Donnie Oil Company | Nocona, TX 76255 | Oil & Gas Operator | Feb 2014 |
| 3929 | Fenway Energy Development Co. | Midland, TX 79701 | Oil & Gas Operator | Feb 2026 |
| 3930 | Fergus Oil & Gas, LLC | Allen, TX 75013 | Oil Operator | Feb 2026 |
| 3931 | Ferguson Oil & Gas Inc. | Austin, TX 78746 | Oil & Gas Operator | Feb 2026 |
| 3932 | Ferguson, S. M. Jr., Inc. | Dallas, TX 75218 | Oil & Gas Operator | Feb 2026 |
| 3933 | Ferguson-Burns Leasing Co. | Rockdale, TX 76567 | Oil & Gas Operator | Oct 2007 |
| 3934 | Ferreira Oil Properties LLC | Carefree, AZ 85377 | Oil Operator | Apr 2014 |
| 3935 | Fesco, LTD. | Alice, TX 78332 | Oil Operator | Feb 2026 |
| 3936 | Ffa Petroleum Services | Victoria, TX 77903 | Oil & Gas Operator | Sep 2001 |
| 3937 | Ffa Petroleum Services, Inc. | Boerne, TX 78006 | Oil & Gas Operator | Feb 2018 |
| 3938 | FGB Energy, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Aug 2017 |
| 3939 | FH Operation Company, Inc. | Dallas, TX 75381 | Oil & Gas Operator | Apr 2005 |
| 3940 | Fidelity Energy Co. | Gainesville, TX 76241 | Oil & Gas Operator | Apr 2008 |
| 3941 | Fidelity Explor. & Prod. Co. | Denver, CO 80202 | Oil & Gas Operator | Nov 2015 |
| 3942 | Fidelity Exploration & Production Company | Denver, CO 80203 | Oil & Gas Operator | Jan 2026 |
| 3943 | Fidelity Petroleum Corporation | Plano, TX 75074 | Oil & Gas Operator | Feb 2026 |
| 3944 | Field Petroleum Corp. | San Antonio, TX 78216 | Oil & Gas Operator | Feb 2026 |
| 3945 | Field Production Company | Cleburne, TX 76033 | Oil & Gas Operator | Mar 2023 |
| 3946 | Fields Exploration, Inc. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Aug 2015 |
| 3947 | Fields Oil & Gas Company, LLC | Dallas, TX 75230 | Oil & Gas Operator | Feb 2026 |
| 3948 | Fields, Bert, Jr. | Dallas, TX 75230 | Oil & Gas Operator | Apr 2015 |
| 3949 | Fieldwood Energy LLC | Houston, TX 77042 | Oil & Gas Operator | Dec 2024 |
| 3950 | Fieldwood Energy Offshore LLC | Houston, TX 77042 | Oil & Gas Operator | Feb 2026 |
| 3951 | Fieldwood Onshore LLC | Houston, TX 77098 | Oil & Gas Operator | Feb 2026 |
| 3952 | Fiesta Energy LLC | Corpus Chrsti, TX 78404 | Oil & Gas Operator | Feb 2026 |
| 3953 | Figgie Natural Resources | Wickliffe, OH 44092 | Oil & Gas Operator | Oct 1995 |
| 3954 | Figure 3 Operating LLC | Tyler, TX 75703 | Oil Operator | Dec 2024 |
| 3955 | Fiml Natural Resources, LLC | Denver, CO 80202 | Oil & Gas Operator | Aug 2014 |
| 3956 | Fin Energy, LLC | Wichita Falls, TX 76308 | Oil Operator | Feb 2026 |
| 3957 | Fina Oil And Chemical Company | Dallas, TX 75221 | Oil & Gas Operator | May 2019 |
| 3958 | Finaly Resources LLC | Sunset Beach, CA 90742 | Oil & Gas Operator | Feb 2026 |
| 3959 | Finch-Crestmont | Houston, TX 77027 | Oil & Gas Operator | Oct 2012 |
| 3960 | Finger Oil & Gas, Inc. | Castroville, TX 78009 | Oil & Gas Operator | May 2021 |
| 3961 | Finkelstein, Jack, Trustee | Houston, TX 77027 | Oil & Gas Operator | Apr 2007 |
| 3962 | Finlay Energy, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Jul 1999 |
| 3963 | Finley Oil Company, LLC | Liberty, TX 77575 | Oil Operator | Feb 2026 |
| 3964 | Finley Resources Inc | Fort Worth, TX 76113 | Oil & Gas Operator | Feb 2026 |
| 3965 | Finnell Oil Co. | Wichita Falls, TX 76308 | Oil & Gas Operator | Sep 2009 |
| 3966 | Finnell Oil Services, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Feb 2026 |
| 3967 | Firebird Energy II LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Feb 2026 |
| 3968 | Firebird Energy LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Nov 2022 |
| 3969 | Firecreek Texas, Inc. | Fort Worth, TX 76116 | Oil & Gas Operator | Dec 2015 |
| 3970 | Firerock Company | Abilene, TX 79602 | Oil & Gas Operator | Feb 2026 |
| 3971 | Fireside Oil And Gas, Inc. | West Monroe, LA 71294 | Oil & Gas Operator | Feb 2002 |
| 3972 | Firewheel Operating, LLC | Midland, TX 79701 | Oil & Gas Operator | Nov 2017 |
| 3973 | First American Operating Co. | Breckenridge, TX 76424 | Oil & Gas Operator | Aug 2006 |
| 3974 | First Aransas Reserves, Inc. | Alvin, TX 77511 | Oil & Gas Operator | Mar 2018 |
| 3975 | First Hardin Corp. | Fulshear, TX 77441 | Oil & Gas Operator | Nov 1994 |
| 3976 | First Light Operating, LLC | San Antonio, TX 78217 | Oil & Gas Operator | Feb 2026 |
| 3977 | First Paragon Properties, L.L.C. | Alice, TX 78333 | Oil Operator | Feb 2026 |
| 3978 | First Permian, L.L.C. | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 3979 | First Reserve Oil & Gas Co | Houston, TX 77002 | Oil & Gas Operator | Apr 2000 |
| 3980 | First Rock, Inc. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Feb 2026 |
| 3981 | First Solid Energy Group, LP | Missouri City, TX 77489 | Oil & Gas Operator | Feb 2026 |
| 3982 | First Source Gas, LP | Houston, TX 77010 | Gas Operator | Jan 2006 |
| 3983 | First Source Texas, Inc. | MT Pleasant, MI 48858 | Gas Operator | Nov 2004 |
| 3984 | First Texas Exploration Corp. | Arcadia, LA 71001 | Oil & Gas Operator | Aug 2003 |
| 3985 | Firstrike Energy Corporation | Cleburne, TX 76033 | Oil & Gas Operator | Jan 2025 |
| 3986 | Fischer Operating Corporation | Victoria, TX 77902 | Oil & Gas Operator | Jan 1999 |
| 3987 | Fiscus Drilling Co., Inc. | Clyde, TX 79510 | Oil & Gas Operator | Apr 2015 |
| 3988 | Fishcreek Minerals, LLC | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 3989 | Fisher Oil Co. | Big Lake, TX 76932 | Oil & Gas Operator | Feb 2026 |
| 3990 | Fisher, Jack Inc. | Abilene, TX 79603 | Oil & Gas Operator | Sep 2001 |
| 3991 | Fisher, L. C. Jr. | Longview, TX 75608 | Oil & Gas Operator | May 1993 |
| 3992 | Fite Oil & Gas, Inc. | Shreveport, LA 71163 | Oil & Gas Operator | Feb 2026 |
| 3993 | Fitts, B.K. Oil & Gas | Bowie, TX 76230 | Oil & Gas Operator | Feb 2026 |
| 3994 | Fitzgerald Production Co. | Oil City, LA 71061 | Oil & Gas Operator | Dec 2024 |
| 3995 | Five D Co | Cactus, TX 79013 | Oil & Gas Operator | Sep 1996 |
| 3996 | Five K Partnership | Graham, TX 76450 | Oil & Gas Operator | Oct 2023 |
| 3997 | Five Star Energy, Inc. | Seguin, TX 78155 | Oil & Gas Operator | Nov 2025 |
| 3998 | Five States Energy Company | Dallas, TX 75206 | Oil & Gas Operator | Mar 2008 |
| 3999 | Five States Operating Company | Dallas, TX 75206 | Oil & Gas Operator | Feb 2008 |
| 4000 | Five States Operating Company LLC | Dallas, TX 75206 | Oil & Gas Operator | Dec 2025 |