| 10101 | Faulconer Vernon E Inc | Tyler, TX 75711 | Oil & Gas Operator | Apr 2025 |
| 10102 | Faulkner Corporation | Oklahoma City, OK 73154-9704 | Oil & Gas Operator | Jan 2017 |
| 10103 | Faulkner DRLG Co, Inc | | Oil Operator | Dec 2023 |
| 10104 | Faust H Floyd | Cardington, OH 43315 | Oil Operator | Dec 1998 |
| 10105 | Fawnwood Energy Inc | Bruin, PA 16022-0157 | Oil & Gas Operator | Dec 2019 |
| 10106 | Fay A. Williams | | Oil & Gas Operator | Dec 2024 |
| 10107 | FBF Energy LLC | Tulsa, OK 74120 | Oil & Gas Operator | Apr 2025 |
| 10108 | FBN Operating Co | | Oil Operator | Nov 1986 |
| 10109 | FDF Resources | Newcastle, WY 82701 | Oil & Gas Operator | Apr 2025 |
| 10110 | FDL Operating, LLC | Judson, TX 75660 | Oil & Gas Operator | Jun 2025 |
| 10111 | Fe Co. | Derby, KS 67037 | Oil & Gas Operator | Dec 2009 |
| 10112 | Fe-NM, LLC | Tyler, TX 75711 | Oil & Gas Operator | Apr 2025 |
| 10113 | Feagan Energy, Inc. | Midland, TX 79710 | Oil & Gas Operator | Jun 2025 |
| 10114 | Fear & Duncan | | Oil Operator | Jul 1979 |
| 10115 | Fears George E | | Oil & Gas Operator | Mar 2019 |
| 10116 | Feazel Operating Company, Inc. | | Oil & Gas Operator | Feb 1979 |
| 10117 | Fed Operating LLC | Midland, TX 79701 | Oil & Gas Operator | Jun 2025 |
| 10118 | Federal Energy Development Co. | Dallas, TX 75205 | Oil & Gas Operator | Mar 2011 |
| 10119 | Federal Hill Land Co., Inc. | | Gas Operator | Apr 1991 |
| 10120 | Federal Oil & Gas - Rood L L C | | Oil & Gas Operator | Dec 2024 |
| 10121 | Federal Oil, Inc. | Big Spring, TX 79721 | Oil & Gas Operator | Jun 2025 |
| 10122 | Federated Natural Resources Corp | | Oil & Gas Operator | Oct 1989 |
| 10123 | Federated Natural Resources Corp And Fede | | Oil & Gas Operator | Feb 1989 |
| 10124 | Federated Oil & Gas Properties | Traverse City, MI 49685 | Gas Operator | Mar 2014 |
| 10125 | Federated Oil And Gas Properties Inc | | Oil & Gas Operator | Mar 2025 |
| 10126 | Federer, H. C. | Amarillo, TX 79101 | Oil & Gas Operator | Dec 1993 |
| 10127 | Fee Energy Corporation | | Oil & Gas Operator | Jul 1978 |
| 10128 | Feeley Ranch LLC | Broken Arrow, OK 74014 | Gas Operator | Dec 2017 |
| 10129 | Fees Jr And Son Oil & Gas* Walter S | | Oil & Gas Operator | Apr 2025 |
| 10130 | Feezel A L LLC | Ada, OK 74821-1371 | Oil & Gas Operator | Mar 2015 |
| 10131 | Feikls Oil & Gas Inc | Eagle, ID 83616-7713 | Oil & Gas Operator | Dec 2024 |
| 10132 | Feinen, Richard C. | Forestville, NY 14062 | Gas Operator | Dec 2023 |
| 10133 | Feldco, Inc. | | Oil & Gas Operator | Apr 2007 |
| 10134 | Felderhoff Production Company | Muenster, TX 76252 | Oil & Gas Operator | Jun 2025 |
| 10135 | Felix Energy Holdings II, LLC | Tulsa, OK 74172 | Oil & Gas Operator | Apr 2020 |
| 10136 | Felix Energy LLC | Denver, CO 80202-1467 | Oil & Gas Operator | Mar 2025 |
| 10137 | Fell Oil & Gas C | | Oil Operator | Oct 1991 |
| 10138 | Fell Oil And Gas Inc | Tulsa, OK 74157-9487 | Oil & Gas Operator | Aug 2016 |
| 10139 | Fell, Clarence | | Gas Operator | Dec 1972 |
| 10140 | Fell-Brecklein-Town Oil Co. | | Oil Operator | Dec 1975 |
| 10141 | Fellows Energy LTD | Price, UT 84501-2016 | Gas Operator | Sep 2007 |
| 10142 | Felmont Oil Corporation | Walnut Creek, CA 94596-3568 | Oil & Gas Operator | Feb 1990 |
| 10143 | Felty Drilling Co. Inc | Burkburnett, TX 76354 | Oil & Gas Operator | Jun 2025 |
| 10144 | Felty Production, Inc. | Burkburnett, TX 76354 | Oil Operator | Jun 2025 |
| 10145 | Felty, F. T. Operating Company | Burkburnett, TX 76354 | Oil & Gas Operator | Jul 2018 |
| 10146 | Femco Services Inc | Lindsay, OK 73052-0632 | Oil & Gas Operator | Nov 2006 |
| 10147 | Femco SWD Inc | Enid, OK 73702-3907 | Oil Operator | Mar 2014 |
| 10148 | Fender Expl & Prod Co., L.L.C. | Tyler, TX 75710 | Oil & Gas Operator | Sep 2004 |
| 10149 | Fender, Mildred A. | Russell, KS 67665 | Oil & Gas Operator | Jun 2000 |
| 10150 | Fenix Petroleum Group LLC | Washington, TX 77880 | Oil Operator | Jul 2019 |
| 10151 | Fenn, Bill Inc. | Giddings, TX 78942 | Oil & Gas Operator | Mar 2008 |
| 10152 | Fenno, Tom Prod. | FT Collins, CO 80524 | Oil & Gas Operator | Mar 2018 |
| 10153 | Fenoglio Energy Production, LLC | Nocona, TX 76255 | Oil Operator | Jun 2025 |
| 10154 | Fenoglio Oil Company | Nocona, TX 76255 | Oil Operator | Jun 2025 |
| 10155 | Fenoglio, Donnie Oil Company | Nocona, TX 76255 | Oil & Gas Operator | Feb 2014 |
| 10156 | Fenway Energy Development Co. | Midland, TX 79701 | Oil & Gas Operator | Jun 2025 |
| 10157 | Ferenbaugh Albert & Denise | Danville, OH 43014 | Oil & Gas Operator | Dec 2024 |
| 10158 | Fergus Oil & Gas, LLC | Allen, TX 75013 | Oil Operator | Jun 2025 |
| 10159 | Ferguson & Bosworth | | Oil & Gas Operator | May 2007 |
| 10160 | Ferguson Bob | Casper, WY 82605 | Oil Operator | May 2004 |
| 10161 | Ferguson Energy Inc | Evanston, WY 82930 | Oil & Gas Operator | Mar 2025 |
| 10162 | Ferguson Oil & Gas Inc. | Austin, TX 78746 | Oil & Gas Operator | Jun 2025 |
| 10163 | Ferguson Oil Company Inc | | Oil & Gas Operator | Apr 1994 |
| 10164 | Ferguson Orval L | | Oil & Gas Operator | Oct 1983 |
| 10165 | Ferguson, S. M. Jr., Inc. | Dallas, TX 75218 | Oil & Gas Operator | Jun 2025 |
| 10166 | Ferguson-Burns Leasing Co. | Rockdale, TX 76567 | Oil & Gas Operator | Oct 2007 |
| 10167 | Ferguson-Hunter Explor Inc | N Little Rock, AR 72120-1667 | Oil & Gas Operator | Aug 2016 |
| 10168 | Fernwood Corporation | | Oil Operator | Dec 1986 |
| 10169 | Ferraro Energy Corporation | Oklahoma City, OK 73114-6629 | Oil & Gas Operator | Aug 2013 |
| 10170 | Ferreira Oil Properties LLC | Carefree, AZ 85377 | Oil Operator | Apr 2014 |
| 10171 | Ferrell Gas Co. | | Gas Operator | Dec 1977 |
| 10172 | Ferris, Wakyn W. | Denver, CO 80202 | Oil Operator | Jun 1988 |
| 10173 | Ferry Lake Oil Co. | | Oil & Gas Operator | Jan 2025 |
| 10174 | Fesco, LTD. | Alice, TX 78332 | Oil Operator | Jun 2025 |
| 10175 | Fetterman Samuel C SR | Rossiter, PA 15772 | Gas Operator | Dec 2022 |
| 10176 | Fewins, Gary D. | Moran, KS 66755 | Oil Operator | Jul 2019 |
| 10177 | FF&N Oil Company | Spearsville, LA 71277 | Oil Operator | Jul 2024 |
| 10178 | Ffa Petroleum Services | Victoria, TX 77903 | Oil & Gas Operator | Sep 2001 |
| 10179 | Ffa Petroleum Services, Inc. | Boerne, TX 78006 | Oil & Gas Operator | Feb 2018 |
| 10180 | FG III LLC | Colleyville, TX 76034-4963 | Oil & Gas Operator | Apr 2018 |
| 10181 | FGB Energy, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Aug 2017 |
| 10182 | FGS Energy LLC | Duncan, OK 73533-1829 | Oil & Gas Operator | Mar 2025 |
| 10183 | FH Operation Company, Inc. | Dallas, TX 75381 | Oil & Gas Operator | Apr 2005 |
| 10184 | FH Petroleum Corp. | Billings, MT 59103 | Oil & Gas Operator | Apr 2025 |
| 10185 | Fha Investments LLC | Cushing, OK 74023 | Oil & Gas Operator | Mar 2025 |
| 10186 | Fha Operating LLC | Cushing, OK 74023-1030 | Oil & Gas Operator | Nov 2024 |
| 10187 | Fi-Ro Corporation | Natchez, MS BADADDR | Oil & Gas Operator | Nov 2001 |
| 10188 | Fidelity E&P Company | Denver, CO 80202 | Oil & Gas Operator | Feb 2016 |
| 10189 | Fidelity Energy Co. | Gainesville, TX 76241 | Oil & Gas Operator | Apr 2008 |
| 10190 | Fidelity Energy, Inc. | Houston, TX 77055 | Oil & Gas Operator | Dec 2009 |
| 10191 | Fidelity Explor. & Prod. Co. | Denver, CO 80202 | Oil & Gas Operator | Nov 2015 |
| 10192 | Fidelity Exploration & Production Company | Denver, CO 80203 | Oil & Gas Operator | May 2025 |
| 10193 | Fidelity Petroleum Corporation | Plano, TX 75074 | Oil & Gas Operator | Jun 2025 |
| 10194 | Fidgets Energy LLC | Checotah, OK 74426-5309 | Oil Operator | Oct 2024 |
| 10195 | Field Petroleum Corp. | San Antonio, TX 78216 | Oil & Gas Operator | Jun 2025 |
| 10196 | Field Production Company | Cleburne, TX 76033 | Oil & Gas Operator | Mar 2023 |
| 10197 | Field Service, Inc. | West Seneca, NY 14206 | Gas Operator | Dec 2023 |
| 10198 | Fields Exploration, Inc. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Aug 2015 |
| 10199 | Fields Oil & Gas Company, LLC | Dallas, TX 75230 | Oil & Gas Operator | Jun 2025 |
| 10200 | Fields, Bert, Jr. | Dallas, TX 75230 | Oil & Gas Operator | Apr 2015 |