| 10101 | Felix Energy Holdings II, LLC | Tulsa, OK 74172 | Oil & Gas Operator | Apr 2020 |
| 10102 | Felix Energy LLC | Denver, CO 80202-1467 | Oil & Gas Operator | Dec 2025 |
| 10103 | Fell Oil & Gas C | | Oil Operator | Oct 1991 |
| 10104 | Fell Oil And Gas Inc | Tulsa, OK 74157-9487 | Oil & Gas Operator | Aug 2016 |
| 10105 | Fell, Clarence | | Gas Operator | Dec 1972 |
| 10106 | Fell-Brecklein-Town Oil Co. | | Oil Operator | Dec 1975 |
| 10107 | Fellows Energy LTD | Price, UT 84501-2016 | Gas Operator | Sep 2007 |
| 10108 | Felmont Oil Corporation | Walnut Creek, CA 94596-3568 | Oil & Gas Operator | Feb 1990 |
| 10109 | Felty Drilling Co. Inc | Burkburnett, TX 76354 | Oil & Gas Operator | Mar 2026 |
| 10110 | Felty Production, Inc. | Burkburnett, TX 76354 | Oil Operator | Mar 2026 |
| 10111 | Felty, F. T. Operating Company | Burkburnett, TX 76354 | Oil & Gas Operator | Jul 2018 |
| 10112 | Femco Services Inc | Lindsay, OK 73052-0632 | Oil & Gas Operator | Nov 2006 |
| 10113 | Femco SWD Inc | Enid, OK 73702-3907 | Oil Operator | Mar 2014 |
| 10114 | Fender Expl & Prod Co., L.L.C. | Tyler, TX 75710 | Oil & Gas Operator | Sep 2004 |
| 10115 | Fender, Mildred A. | Russell, KS 67665 | Oil & Gas Operator | Jun 2000 |
| 10116 | Fenix Petroleum Group LLC | Washington, TX 77880 | Oil Operator | Jul 2019 |
| 10117 | Fenn, Bill Inc. | Giddings, TX 78942 | Oil & Gas Operator | Mar 2008 |
| 10118 | Fenno, Tom Prod. | FT Collins, CO 80524 | Oil & Gas Operator | Mar 2018 |
| 10119 | Fenoglio Oil Company | Nocona, TX 76255 | Oil Operator | Mar 2026 |
| 10120 | Fenoglio, Donnie Oil Company | Nocona, TX 76255 | Oil & Gas Operator | Feb 2014 |
| 10121 | Fenway Energy Development Co. | Midland, TX 79701 | Oil & Gas Operator | Mar 2026 |
| 10122 | Ferenbaugh Albert & Denise | Danville, OH 43014 | Oil & Gas Operator | Dec 2024 |
| 10123 | Fergus Oil & Gas, LLC | Allen, TX 75013 | Oil Operator | Mar 2026 |
| 10124 | Ferguson & Bosworth | | Oil & Gas Operator | May 2007 |
| 10125 | Ferguson Bob | Casper, WY 82605 | Oil Operator | May 2004 |
| 10126 | Ferguson Energy Inc | Evanston, WY 82930 | Oil & Gas Operator | Dec 2025 |
| 10127 | Ferguson Oil & Gas Inc. | Austin, TX 78746 | Oil & Gas Operator | Mar 2026 |
| 10128 | Ferguson Oil Company Inc | | Oil & Gas Operator | Apr 1994 |
| 10129 | Ferguson Orval L | | Oil & Gas Operator | Oct 1983 |
| 10130 | Ferguson, S. M. Jr., Inc. | Dallas, TX 75218 | Oil & Gas Operator | Mar 2026 |
| 10131 | Ferguson-Burns Leasing Co. | Rockdale, TX 76567 | Oil & Gas Operator | Oct 2007 |
| 10132 | Ferguson-Hunter Explor Inc | N Little Rock, AR 72120-1667 | Oil & Gas Operator | Aug 2016 |
| 10133 | Fernwood Corporation | | Oil Operator | Dec 1986 |
| 10134 | Ferraro Energy Corporation | Oklahoma City, OK 73114-6629 | Oil & Gas Operator | Aug 2013 |
| 10135 | Ferreira Oil Properties LLC | Carefree, AZ 85377 | Oil Operator | Apr 2014 |
| 10136 | Ferrell Gas Co. | | Gas Operator | Dec 1977 |
| 10137 | Ferris, Wakyn W. | Denver, CO 80202 | Oil Operator | Jun 1988 |
| 10138 | Ferry Lake Oil Co. | | Oil & Gas Operator | Jan 2025 |
| 10139 | Fesco, LTD. | Alice, TX 78332 | Oil Operator | Mar 2026 |
| 10140 | Fetterman Samuel C SR | Rossiter, PA 15772 | Gas Operator | Dec 2025 |
| 10141 | Fewins, Gary D. | Moran, KS 66755 | Oil Operator | Jul 2019 |
| 10142 | FF&N Oil Company | Spearsville, LA 71277 | Oil Operator | Jan 2025 |
| 10143 | Ffa Petroleum Services | Victoria, TX 77903 | Oil & Gas Operator | Sep 2001 |
| 10144 | Ffa Petroleum Services, Inc. | Boerne, TX 78006 | Oil & Gas Operator | Feb 2018 |
| 10145 | FG III LLC | Colleyville, TX 76034-4963 | Oil & Gas Operator | Apr 2018 |
| 10146 | FGB Energy, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Aug 2017 |
| 10147 | FGS Energy LLC | Duncan, OK 73533-1829 | Oil & Gas Operator | Jan 2026 |
| 10148 | FH Operation Company, Inc. | Dallas, TX 75381 | Oil & Gas Operator | Apr 2005 |
| 10149 | FH Petroleum Corp. | Billings, MT 59103 | Oil & Gas Operator | Oct 2025 |
| 10150 | Fha Investments LLC | Cushing, OK 74023 | Oil & Gas Operator | Dec 2025 |
| 10151 | Fha Operating LLC | Cushing, OK 74023-1030 | Oil & Gas Operator | Sep 2025 |
| 10152 | Fi-Ro Corporation | Natchez, MS BADADDR | Oil & Gas Operator | Nov 2001 |
| 10153 | Fidelity E&P Company | Denver, CO 80202 | Oil & Gas Operator | Feb 2016 |
| 10154 | Fidelity Energy Co. | Gainesville, TX 76241 | Oil & Gas Operator | Apr 2008 |
| 10155 | Fidelity Energy, Inc. | Houston, TX 77055 | Oil & Gas Operator | Dec 2009 |
| 10156 | Fidelity Explor. & Prod. Co. | Denver, CO 80202 | Oil & Gas Operator | Nov 2015 |
| 10157 | Fidelity Exploration & Production Company | Denver, CO 80203 | Oil & Gas Operator | Feb 2026 |
| 10158 | Fidelity Petroleum Corporation | Plano, TX 75074 | Oil & Gas Operator | Mar 2026 |
| 10159 | Fidgets Energy LLC | Checotah, OK 74426-5309 | Oil Operator | Oct 2024 |
| 10160 | Field Petroleum Corp. | San Antonio, TX 78216 | Oil & Gas Operator | Mar 2026 |
| 10161 | Field Production Company | Cleburne, TX 76033 | Oil & Gas Operator | Mar 2023 |
| 10162 | Field Service, Inc. | West Seneca, NY 14206 | Gas Operator | Dec 2024 |
| 10163 | Fields Exploration, Inc. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Aug 2015 |
| 10164 | Fields Oil & Gas Company, LLC | Dallas, TX 75230 | Oil & Gas Operator | Mar 2026 |
| 10165 | Fields, Bert, Jr. | Dallas, TX 75230 | Oil & Gas Operator | Apr 2015 |
| 10166 | Fieldstone Exploration Company | | Oil & Gas Operator | Jan 2007 |
| 10167 | Fieldwood Energy LLC | Houston, TX 77042 | Oil & Gas Operator | Dec 2024 |
| 10168 | Fieldwood Energy Offshore LLC | Houston, TX 77042 | Oil & Gas Operator | Mar 2026 |
| 10169 | Fieldwood Onshore LLC | Houston, TX 77098 | Oil & Gas Operator | Mar 2026 |
| 10170 | Fiesta Energy LLC | Corpus Chrsti, TX 78404 | Oil & Gas Operator | Mar 2026 |
| 10171 | Fife Oil & Gas | | Oil Operator | Oct 1987 |
| 10172 | Fife Oil & Gas, Inc. | | Oil Operator | Mar 1991 |
| 10173 | Fife Oil Company, Inc. | | Oil & Gas Operator | Feb 2008 |
| 10174 | Fifty Third Corp. & K.M.O.C. | | Gas Operator | Jul 1994 |
| 10175 | Fifty-Third Corporation | | Gas Operator | Jul 1994 |
| 10176 | Figgie Natural Resources | Wickliffe, OH 44092 | Oil & Gas Operator | Oct 1995 |
| 10177 | Figure 3 Operating LLC | Tyler, TX 75703 | Oil Operator | Dec 2024 |
| 10178 | Filco Incorporated | | Oil & Gas Operator | Jan 2026 |
| 10179 | Fiml Natural Resources LLC (FNR) | Denver, CO 80202-4438 | Oil & Gas Operator | Jul 2014 |
| 10180 | Fiml Natural Resources, LLC | Denver, CO 80202 | Oil & Gas Operator | Aug 2014 |
| 10181 | Fin Energy, LLC | Wichita Falls, TX 76308 | Oil Operator | Mar 2026 |
| 10182 | Fin-Oil, Inc. | | Oil & Gas Operator | Apr 1985 |
| 10183 | Fina Oil & Chemi | | Oil & Gas Operator | Oct 1995 |
| 10184 | Fina Oil & Chemical | Midland, TX 797022455 | Oil & Gas Operator | Apr 1999 |
| 10185 | Fina Oil And Chemical Company | Dallas, TX 75221 | Oil & Gas Operator | May 2019 |
| 10186 | Fina Oil& Chem Co/Marathon Oil | | Oil & Gas Operator | Dec 1992 |
| 10187 | Finaly Resources LLC | Sunset Beach, CA 90742 | Oil & Gas Operator | Mar 2026 |
| 10188 | Finch-Crestmont | Houston, TX 77027 | Oil & Gas Operator | Oct 2012 |
| 10189 | Finck Oil & Gas Co | Junction City, OH 43748 | Oil & Gas Operator | Dec 2024 |
| 10190 | Finders Co And Sullivan And Co | | Oil & Gas Operator | May 1987 |
| 10191 | Finders Co The | | Oil & Gas Operator | Jan 1998 |
| 10192 | Fine Jack | Pensacola, FL 32516 | Oil Operator | May 1995 |
| 10193 | Finger Oil & Gas, Inc. | Castroville, TX 78009 | Oil & Gas Operator | May 2021 |
| 10194 | Finkelstein, Jack, Trustee | Houston, TX 77027 | Oil & Gas Operator | Apr 2007 |
| 10195 | Finlay Energy, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Jul 1999 |
| 10196 | Finley Oil Compa | | Oil Operator | Oct 1992 |
| 10197 | Finley Oil Company, LLC | Liberty, TX 77575 | Oil Operator | Mar 2026 |
| 10198 | Finley Resources Inc | Fort Worth, TX 76113 | Oil & Gas Operator | Mar 2026 |
| 10199 | Finley, Billy D | Burkesville, KY 42717 | Oil Operator | Dec 2020 |
| 10200 | Finnell Oil Co. | Wichita Falls, TX 76308 | Oil & Gas Operator | Sep 2009 |