| 10301 | First Texas Exploration Corp. | Arcadia, LA 71001 | Oil & Gas Operator | Aug 2003 |
| 10302 | First Zone Production | Salt Lake City, UT 84102 | Oil & Gas Operator | Dec 1997 |
| 10303 | Firstrike Energy Corporation | Cleburne, TX 76033 | Oil & Gas Operator | Jan 2025 |
| 10304 | Fischer Operating Corporation | Victoria, TX 77902 | Oil & Gas Operator | Jan 1999 |
| 10305 | Fiscus Drilling Co., Inc. | Clyde, TX 79510 | Oil & Gas Operator | Apr 2015 |
| 10306 | Fishburn Producing Inc | Marengo, OH 43334 | Oil & Gas Operator | Dec 2024 |
| 10307 | Fishburn Services Inc | Marengo, OH 43334 | Oil & Gas Operator | Dec 1990 |
| 10308 | Fishcreek Minerals, LLC | Graham, TX 76450 | Oil & Gas Operator | May 2025 |
| 10309 | Fisher Ellis R | Bristow, OK 74010-8515 | Oil & Gas Operator | Dec 2015 |
| 10310 | Fisher Ernest B | Bristow, OK 74010 | Oil Operator | Jul 2024 |
| 10311 | Fisher Joint Venture | | Oil & Gas Operator | Oct 1998 |
| 10312 | Fisher McCall Oil And Gas Inc | | Oil Operator | Dec 2014 |
| 10313 | Fisher Oil Co. | Big Lake, TX 76932 | Oil & Gas Operator | May 2025 |
| 10314 | Fisher, Jack Inc. | Abilene, TX 79603 | Oil & Gas Operator | Sep 2001 |
| 10315 | Fisher, L. C. Jr. | Longview, TX 75608 | Oil & Gas Operator | May 1993 |
| 10316 | Fisk Family Farms LLC | | Gas Operator | Mar 2025 |
| 10317 | Fitch Petroleum Company Inc | Adair, OK 74330 | Oil Operator | Nov 2024 |
| 10318 | Fite Oil & Gas, Inc. | Shreveport, LA 71163 | Oil & Gas Operator | May 2025 |
| 10319 | Fitkin Petroleum Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Jan 1994 |
| 10320 | Fitts, B.K. Oil & Gas | Bowie, TX 76230 | Oil & Gas Operator | May 2025 |
| 10321 | Fitzgerald Oil Company | Waurika, OK 73573 | Oil Operator | Mar 2025 |
| 10322 | Fitzgerald Production Co. | Oil City, LA 71061 | Oil & Gas Operator | Dec 2024 |
| 10323 | Fitzgerald, Thomas J. | | Oil & Gas Operator | Dec 2023 |
| 10324 | Fitzpatrick, Stephen | Angola, NY 14006 | Gas Operator | Dec 2023 |
| 10325 | Fitzsimmons Randall W & Deborah S | Bartesville, OK 74006 | Oil & Gas Operator | Feb 2025 |
| 10326 | Five D Co | Cactus, TX 79013 | Oil & Gas Operator | Sep 1996 |
| 10327 | Five K Partnership | Graham, TX 76450 | Oil & Gas Operator | Oct 2023 |
| 10328 | Five Star Energy, Inc. | Seguin, TX 78155 | Oil & Gas Operator | Jan 2025 |
| 10329 | Five State Energy Co | Dallas, TX 75206 | Oil & Gas Operator | Oct 1995 |
| 10330 | Five States Energy Company | Dallas, TX 75206 | Oil & Gas Operator | Mar 2008 |
| 10331 | Five States Operating Company | Dallas, TX 75206 | Oil & Gas Operator | Feb 2008 |
| 10332 | Five States Operating Company LLC | Dallas, TX 75206 | Oil & Gas Operator | Mar 2025 |
| 10333 | Five-Jab, Inc. | Tomball, TX 77377 | Oil & Gas Operator | May 2025 |
| 10334 | Fiveash Operating Company, Inc. | Christoval, TX 76935 | Oil & Gas Operator | Aug 2003 |
| 10335 | Fivestones Energy LLC | Midland, TX 79710 | Oil & Gas Operator | May 2025 |
| 10336 | FJH Oil Company | Muenster, TX 76252 | Oil & Gas Operator | May 2025 |
| 10337 | Fjo Energy, LLC | Fairhope, AL 36532 | Oil Operator | May 2025 |
| 10338 | Flag DRLG Co, Inc | Greenville, KY 42345 | Oil & Gas Operator | Dec 2021 |
| 10339 | Flag Energy, LLC | Centerton, AR 72719 | Oil & Gas Operator | Nov 2018 |
| 10340 | Flag Transport Inc | Shattuck, OK 73858-0848 | Oil Operator | Dec 2014 |
| 10341 | Flag-Redfern Oil Company | Oklahoma City, OK 73125 | Oil & Gas Operator | Jul 2002 |
| 10342 | Flagin Operating LLC | Norman, OK 73072-2405 | Oil & Gas Operator | Feb 2025 |
| 10343 | Flahive Oil & Gas LLC | Golden, CO 80401 | Oil Operator | Oct 1995 |
| 10344 | Flairtex Resources, Inc. | Houston, TX 77040 | Oil & Gas Operator | Oct 1998 |
| 10345 | Flame Energy Co Inc | Dalton, OH 44618 | Oil & Gas Operator | Dec 2006 |
| 10346 | Flamingo Oil & Gas | Luling, TX 78648 | Oil & Gas Operator | May 2025 |
| 10347 | Flamingo Operating, LLC | Houston, TX 77084 | Oil & Gas Operator | May 2025 |
| 10348 | Flanagan Energy Company LLC | Walters, OK 73572 | Oil Operator | Feb 2025 |
| 10349 | Flanigan Bros | Edinboro, PA 16412-1443 | Oil & Gas Operator | Dec 2024 |
| 10350 | Flare Oil Inc | Rockport, TX 78382 | Oil & Gas Operator | May 2025 |
| 10351 | Flare Resources Inc. | Houston, TX 77002 | Gas Operator | Jun 2006 |
| 10352 | Flare, Inc. | | Oil & Gas Operator | Jul 1995 |
| 10353 | Flash Gas & Oil Northeast, Inc | | Oil & Gas Operator | May 2007 |
| 10354 | Flash Gas & Oil Southwest, Inc. | Mandeville, LA 70470 | Oil & Gas Operator | Oct 2019 |
| 10355 | Flash Gas & Oil, Inc. | | Oil & Gas Operator | May 1991 |
| 10356 | Flat Creek Operating Co. | Rockwall, TX 75087 | Oil & Gas Operator | Jun 2004 |
| 10357 | Flat Creek Resources, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Feb 2025 |
| 10358 | Flat Top Operating, LLC | Midland, TX 79707 | Oil & Gas Operator | May 2025 |
| 10359 | Flatirons Development LLC | Westminster, CO 80020-2771 | Gas Operator | Dec 2015 |
| 10360 | Flatirons Resources LLC | Westminster, CO 80021 | Oil & Gas Operator | Dec 2022 |
| 10361 | Flatland Energy, LLC | Gardner, KS 66030 | Oil Operator | Dec 2024 |
| 10362 | Flatland Oil Com | | Oil Operator | Sep 1985 |
| 10363 | Flatlander Energy LLC | Blackwell, OK 74631 | Oil & Gas Operator | Feb 2025 |
| 10364 | Flatlander Petroleum LLC | | Oil & Gas Operator | Jan 2025 |
| 10365 | Flatonia Energy, LLC | Dallas, TX 75201 | Oil & Gas Operator | May 2025 |
| 10366 | Flatrock Energy Co | | Oil & Gas Operator | May 2017 |
| 10367 | Flatt Energy Inc | | Oil & Gas Operator | Sep 2019 |
| 10368 | Flatwater Energy, LLC | | Oil & Gas Operator | Dec 2024 |
| 10369 | Flavian Oil Company | Dallas, TX 75206 | Gas Operator | Jan 1997 |
| 10370 | Fleeharty Willie W | | Oil & Gas Operator | Jun 1991 |
| 10371 | Fleeman Teresa R | Lower Salem, OH 45745 | Oil & Gas Operator | Dec 2024 |
| 10372 | Fleet Frank T | Ada, OK 74821-0729 | Oil & Gas Operator | Feb 2003 |
| 10373 | Fleet Oil Co. | | Oil & Gas Operator | Dec 1991 |
| 10374 | Fleetwood K Phil Oil Properties | Marlow, OK 73055 | Oil & Gas Operator | Feb 2025 |
| 10375 | Fletcher Oil LLC | Ratliff City, OK 73481 | Oil & Gas Operator | Mar 2025 |
| 10376 | Fletcher Operating Co. | | Oil & Gas Operator | May 1989 |
| 10377 | Fletcher Operating, LLC | Fairhope, AL 36532 | Oil & Gas Operator | May 2025 |
| 10378 | Fletcher Petroleum Corp. | Fairhope, AL 36533 | Oil & Gas Operator | Feb 2025 |
| 10379 | Fletcher, M. D. | Pampa, TX 79065 | Oil & Gas Operator | Dec 2007 |
| 10380 | Fleur David Corp | | Gas Operator | Jul 2001 |
| 10381 | Flex Energy, L.L.C. | | Oil & Gas Operator | Feb 2010 |
| 10382 | Flicka Energy Inc | Crescent, OK 73028 | Oil & Gas Operator | Mar 2022 |
| 10383 | Flint Douglas J | Mounds, OK 74047-5415 | Oil & Gas Operator | Sep 2015 |
| 10384 | Flint Hills Production Co., Inc. | Gas City, KS 66742 | Oil Operator | Nov 2009 |
| 10385 | Flint Interests, LLC | Houston, TX 77057 | Oil & Gas Operator | May 2025 |
| 10386 | Flint J A & Associates | Holdenville, OK 74848 | Oil & Gas Operator | Sep 2009 |
| 10387 | Flint Oak Energy, LLC | Montgomery, TX 77356 | Oil & Gas Operator | May 2025 |
| 10388 | Flint Oil & Gas | San Angelo, TX 76904 | Oil & Gas Operator | Aug 2003 |
| 10389 | Flint Pipeline Company | Kilgore, TX 75663 | Oil & Gas Operator | May 2025 |
| 10390 | Flint Rock Resources MGMNT, Inc. | Austin, TX 78734 | Oil & Gas Operator | May 2025 |
| 10391 | Flint, Billy Individual | Merkel, TX 79536 | Oil & Gas Operator | May 2025 |
| 10392 | Flintstone Energy, LLC | El Dorado, KS 67042 | Oil Operator | Jun 2020 |
| 10393 | Flo A & P Inc. | Seminole, TX 79360 | Oil & Gas Operator | Feb 2024 |
| 10394 | Flo Petro, LLC. | Austin, TX 78746 | Oil Operator | May 2025 |
| 10395 | Floex Energy LLC | Tyler, TX 75701 | Oil Operator | May 2025 |
| 10396 | Flood Thirty Seven LLC | Dewey, OK 74029 | Oil Operator | Feb 2025 |
| 10397 | Flora B Shinnick | | Oil Operator | Jan 2025 |
| 10398 | Flora Resources | | Oil Operator | Oct 2024 |
| 10399 | Florabama Assoc Inc | | Oil & Gas Operator | Jan 2000 |
| 10400 | Florentine Exploration & Production, Inc. | | Oil Operator | Mar 1997 |