| 301 | Franklin, J.W. Oil Operator | | Oil & Gas Operator | Nov 2001 |
| 302 | Franklin, Jack | Arlington, TX 76013 | Oil & Gas Operator | Nov 2007 |
| 303 | Frantz Resource Management, LLC | Hartley, TX 79044 | Oil Operator | Sep 2026 |
| 304 | Fratelli Exploration, L.P. | Bedford, TX 76095 | Oil Operator | Sep 2026 |
| 305 | Frazier Exploration Partners,LLC | Houston, TX 77057 | Oil & Gas Operator | Sep 2026 |
| 306 | Frazier Resources Company | Houston, TX 77057 | Gas Operator | May 2004 |
| 307 | Frazier, VIolet H. | Abilene, TX 79604 | Oil & Gas Operator | Apr 2014 |
| 308 | Fred Underwood, LLC | Dallas, TX 75230 | Oil & Gas Operator | Sep 2026 |
| 309 | Fredco | Louise, TX 77455 | Oil & Gas Operator | Sep 2026 |
| 310 | Freddy'S Well Service, Inc. | Victoria, TX 77902 | Oil & Gas Operator | May 2025 |
| 311 | Fredna Oil Co. | Aledo, TX 76008 | Oil & Gas Operator | Sep 2020 |
| 312 | Fredonia Resources Inc. | Longview, TX 75606 | Oil & Gas Operator | Aug 2003 |
| 313 | Free Rein Operating LLC | Brenham, TX 77834 | Oil & Gas Operator | Sep 2026 |
| 314 | Freedom Energy Inc | Horseshoe Bay, TX 78657 | Oil & Gas Operator | Sep 2026 |
| 315 | Freedom Energy, Inc. (I) | Horseshoe Bay, TX 78657 | Oil & Gas Operator | Jun 2003 |
| 316 | Freedom Energy, LTD. | Horseshoe Bay, TX 78657 | Oil & Gas Operator | Jun 2011 |
| 317 | Freeman Energy Inc. (I) | Fredericksbrg, TX 78624 | Oil & Gas Operator | Aug 1996 |
| 318 | Freeman Expl. & Prod. Co., Inc. | Houston, TX 77279 | Oil & Gas Operator | Aug 2020 |
| 319 | Freeman Oil Co | Midland, TX 79701 | Oil & Gas Operator | Sep 2014 |
| 320 | Freeman, James C. | Corpus Chrsti, TX 78403 | Oil & Gas Operator | Sep 2000 |
| 321 | Freeman, Kathleen Inc. | Midland, TX 79705 | Oil & Gas Operator | Mar 1996 |
| 322 | Freeman, Michael | Abilene, TX 79601 | Oil & Gas Operator | Sep 2026 |
| 323 | Freeport Oil Company | New Orleans, LA 70112 | Oil & Gas Operator | Oct 1979 |
| 324 | Freeport-McMoran Oil & Gas LLC | Houston, TX 77002 | Oil & Gas Operator | Jul 2026 |
| 325 | Freestone Resources, Inc | Dallas, TX 75201 | Oil & Gas Operator | Sep 2026 |
| 326 | Fremont Energy, L.P. | Dallas, TX 75225 | Oil & Gas Operator | Dec 1999 |
| 327 | Fremont Exploration, Inc. | Oklahoma City, OK 73156 | Oil & Gas Operator | Nov 2014 |
| 328 | French Production Incorporated | Houston, TX 77086 | Oil & Gas Operator | Dec 1997 |
| 329 | Fresno Oil Company | Iowa Park, TX 76367 | Oil & Gas Operator | Sep 2026 |
| 330 | Friemel & Carpenter, Inc. | Midland, TX 79702 | Oil & Gas Operator | Feb 2002 |
| 331 | Friemel, Paul D. & Assoc., Inc. | Boerne, TX 78006 | Oil & Gas Operator | Mar 2007 |
| 332 | Friendly Energy Services, Inc. | Corpus Christ, TX 78410 | Oil & Gas Operator | Sep 2026 |
| 333 | Frio Engineering Inc. | Houston, TX 77066 | Oil & Gas Operator | Sep 2026 |
| 334 | Frio Exploration Company | Pearland, TX 77588 | Oil & Gas Operator | Dec 2000 |
| 335 | Frio Oil & Gas, LTD. | Austin, TX 78731 | Oil Operator | Sep 2026 |
| 336 | Frio Production Co. | Alice, TX 78333 | Oil & Gas Operator | Sep 1998 |
| 337 | Frio Resources, LLC | Houston, TX 77024 | Oil & Gas Operator | Sep 2026 |
| 338 | Frisco Energy, L.L.C. | Tulsa, OK 74105 | Oil & Gas Operator | May 2026 |
| 339 | Frisco Oil Corporation | Tyler, TX 75701 | Oil & Gas Operator | Mar 2000 |
| 340 | Frisco Petroleum Management, LLC | Frisco, TX 75034 | Oil & Gas Operator | Sep 2021 |
| 341 | Front Street Operating, LLC | Sourlake, TX 77659 | Oil & Gas Operator | Sep 2026 |
| 342 | Frontier Gas Operating Corp. | Houston, TX 77002 | Oil & Gas Operator | Jul 1998 |
| 343 | Frontier Operating Corporation | Albany, TX 76430 | Oil & Gas Operator | Sep 2026 |
| 344 | Frontier Resources, Inc. | Dallas, TX 75214 | Oil & Gas Operator | Sep 2026 |
| 345 | Frost Brothers Resources, LLLP | Fort Worth, TX 76101 | Gas Operator | Nov 2024 |
| 346 | Frost, C.M., P.M. & V.W. | Simonton, TX 77476 | Oil & Gas Operator | Feb 2000 |
| 347 | Frost,Cyrus B.,Jr.& Fleming, WM. | Eastland, TX 76448 | Oil & Gas Operator | May 2004 |
| 348 | Frostwood Energy, LLC | Houston, TX 77219 | Oil & Gas Operator | Sep 2026 |
| 349 | FTC Consulting, LLC | Graham, TX 76450 | Oil & Gas Operator | Sep 2026 |
| 350 | Fuego Energy, LLC | Fort Worth, TX 76136 | Oil Operator | Sep 2026 |
| 351 | Fuel Products, Inc. | Midland, TX 79702 | Oil Operator | Mar 2002 |
| 352 | Fueled Resources Inc | Boyd, TX 76023 | Oil & Gas Operator | Sep 2026 |
| 353 | Fuji Resources Production Co,Inc | Houston, TX 77036 | Oil & Gas Operator | Feb 2000 |
| 354 | Ful-Hill Oil & Gas, Inc. | Marshall, TX 75670 | Oil & Gas Operator | Aug 2003 |
| 355 | Ful-Hill Oil & Gas, L.L.P. | Overton, TX 75684 | Oil & Gas Operator | Jun 2016 |
| 356 | Fulcrum Energy Operating, LLC | Denver, CO 80206 | Oil & Gas Operator | Jun 2026 |
| 357 | Fulcrum Exploration, LLC. | Flower Mound, TX 75028 | Oil & Gas Operator | May 2026 |
| 358 | Fulfer Oil And Cattle Co. | Jal, NM 88252 | Oil & Gas Operator | Sep 2026 |
| 359 | Fulfer, O. L. Operating Co., Inc | Iowa Park, TX 76367 | Oil & Gas Operator | Nov 1999 |
| 360 | Fuller Energy, Inc. | Midland, TX 79702 | Oil & Gas Operator | Dec 1995 |
| 361 | Fuller Operating Company | Lubbock, TX 79408 | Oil & Gas Operator | Mar 2008 |
| 362 | Fuller Petroleum Inc | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 363 | Fuller Production, Inc. | Midland, TX 79702 | Oil & Gas Operator | Sep 2026 |
| 364 | Fullerton Energy Corporation | Dallas, TX 75230 | Oil & Gas Operator | Apr 2002 |
| 365 | Fullerton, B. N. | San Angelo, TX 76904 | Oil & Gas Operator | Jul 1994 |
| 366 | Fullspike Energy LLC | Boyd, TX 76023 | Oil & Gas Operator | Sep 2026 |
| 367 | Fulshear Oil & Gas Partners LP | Houston, TX 77002 | Gas Operator | Apr 2018 |
| 368 | Fultz Oil Company | Fort Worth, TX 76121 | Oil & Gas Operator | Dec 1995 |
| 369 | Furie Operating, LLC | League City, TX 77573 | Oil & Gas Operator | Nov 2015 |
| 370 | Furr, Roy Estate Of | Midland, TX 79702 | Oil & Gas Operator | Jun 2016 |
| 371 | Furry Oil & Gas, Inc. | Bangs, TX 76823 | Oil & Gas Operator | Sep 2026 |
| 372 | Furry Operating Account | Brownwood, TX 76804 | Oil & Gas Operator | Aug 2003 |
| 373 | Furry Producing Company | Brownwood, TX 76801 | Oil & Gas Operator | Sep 2026 |
| 374 | Furry, Myrl M. | Brownwood, TX 76801 | Oil & Gas Operator | Dec 2003 |
| 375 | Fuse Energy, LLC | Alvord, TX 76225 | Oil & Gas Operator | Jan 2019 |
| 376 | Fusion Energy Holdings, LLC | Throckmorton, TX 76483 | Oil Operator | Sep 2026 |
| 377 | Fusion XP, Inc. | Arlington, TX 76006 | Oil Operator | Apr 2014 |
| 378 | Future Petroleum Company LLC | Houston, TX 77027 | Oil & Gas Operator | Jun 2013 |
| 379 | Future Petroleum Corporation | Houston, TX 77002 | Oil & Gas Operator | Sep 1999 |
| 380 | FW Eagle Ford I, LLC | Houston, TX 77084 | Oil & Gas Operator | Sep 2026 |
| 381 | FX Energy Operating, LLC | Canadian, TX 79014 | Oil & Gas Operator | Sep 2026 |