| 10501 | Fleet Oil Co. | | Oil & Gas Operator | Dec 1991 |
| 10502 | Fleetwood K Phil Oil Properties | Marlow, OK 73055 | Oil & Gas Operator | Jan 2025 |
| 10503 | Fletcher Oil LLC | Ratliff City, OK 73481 | Oil & Gas Operator | Feb 2025 |
| 10504 | Fletcher Operating Co. | | Oil & Gas Operator | May 1989 |
| 10505 | Fletcher Operating, LLC | Fairhope, AL 36532 | Oil & Gas Operator | Apr 2025 |
| 10506 | Fletcher Petroleum Corp. | Fairhope, AL 36533 | Oil & Gas Operator | Feb 2025 |
| 10507 | Fletcher, M. D. | Pampa, TX 79065 | Oil & Gas Operator | Dec 2007 |
| 10508 | Fleur David Corp | | Gas Operator | Jul 2001 |
| 10509 | Flex Energy, L.L.C. | | Oil & Gas Operator | Feb 2010 |
| 10510 | Flicka Energy Inc | Crescent, OK 73028 | Oil & Gas Operator | Mar 2022 |
| 10511 | Flint Douglas J | Mounds, OK 74047-5415 | Oil & Gas Operator | Sep 2015 |
| 10512 | Flint Hills Production Co., Inc. | Gas City, KS 66742 | Oil Operator | Nov 2009 |
| 10513 | Flint Interests, LLC | Houston, TX 77057 | Oil & Gas Operator | Apr 2025 |
| 10514 | Flint J A & Associates | Holdenville, OK 74848 | Oil & Gas Operator | Sep 2009 |
| 10515 | Flint Oak Energy, LLC | Montgomery, TX 77356 | Oil & Gas Operator | Apr 2025 |
| 10516 | Flint Oil & Gas | San Angelo, TX 76904 | Oil & Gas Operator | Aug 2003 |
| 10517 | Flint Pipeline Company | Kilgore, TX 75663 | Oil & Gas Operator | Apr 2025 |
| 10518 | Flint Rock Resources MGMNT, Inc. | Austin, TX 78734 | Oil & Gas Operator | Apr 2025 |
| 10519 | Flint, Billy Individual | Merkel, TX 79536 | Oil & Gas Operator | Apr 2025 |
| 10520 | Flintstone Energy, LLC | El Dorado, KS 67042 | Oil Operator | Jun 2020 |
| 10521 | Flo A & P Inc. | Seminole, TX 79360 | Oil & Gas Operator | Feb 2024 |
| 10522 | Flo Petro, LLC. | Austin, TX 78746 | Oil Operator | Apr 2025 |
| 10523 | Floex Energy LLC | Tyler, TX 75701 | Oil Operator | Apr 2025 |
| 10524 | Flood Thirty Seven LLC | Dewey, OK 74029 | Oil Operator | Jan 2025 |
| 10525 | Flora B Shinnick | | Oil Operator | Jan 2025 |
| 10526 | Flora Resources | | Oil Operator | Oct 2024 |
| 10527 | Florabama Assoc Inc | | Oil & Gas Operator | Jan 2000 |
| 10528 | Florentine Exploration & Production, Inc. | | Oil Operator | Mar 1997 |
| 10529 | Flores & Rucks, Inc. | | Oil & Gas Operator | Jun 1997 |
| 10530 | Florida Exploration Co | Aurora, CO 80014 | Oil & Gas Operator | Sep 1989 |
| 10531 | Florida Gas Exploration Co | | Oil & Gas Operator | Feb 1985 |
| 10532 | Florida Gas Transmission Co. | | Oil Operator | Dec 2007 |
| 10533 | Florine, Inc. | Gypsum, KS 67448 | Oil Operator | Oct 2024 |
| 10534 | Flourison Oil & Gas, LLC | | Oil Operator | Jan 2025 |
| 10535 | Flournoy Oil & Gas, Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2025 |
| 10536 | Flournoy Production Co. | Alice, TX 78333 | Oil & Gas Operator | Dec 2002 |
| 10537 | Flournoy, Russell B. | Breckenridge, TX 76424 | Oil & Gas Operator | Jan 2020 |
| 10538 | Flow Energy Inc. | Bellaire, TX 77401 | Oil & Gas Operator | Sep 1996 |
| 10539 | Flow Production Company | Midland, TX 79708 | Oil & Gas Operator | Mar 2005 |
| 10540 | Flowers Prod Com | | Oil Operator | Aug 1994 |
| 10541 | Flowers Production Co., Inc. | El Dorado, KS 67042 | Oil Operator | Jul 2009 |
| 10542 | Flowers Well Ser | | Oil Operator | Feb 1991 |
| 10543 | Flowin Gold Inc | Sapulpa, OK 74066-9735 | Oil & Gas Operator | Apr 2020 |
| 10544 | Floyd & Alene Jenner | | Oil & Gas Operator | Dec 2003 |
| 10545 | Floyd Oil Company | Houston, TX 77002 | Oil & Gas Operator | Nov 1999 |
| 10546 | Floyd Operating Company | Houston, TX 77002 | Oil & Gas Operator | Jul 2004 |
| 10547 | Floyd Ray Porter | | Oil & Gas Operator | Nov 1986 |
| 10548 | Floyd Williams | | Oil Operator | Aug 1988 |
| 10549 | Floyd, Timber Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 2025 |
| 10550 | Flud Richard | Okmulgee, OK 74447 | Oil & Gas Operator | Mar 2015 |
| 10551 | Fluharty Enterprises Inc | Bridgeport, WV 25338 | Oil & Gas Operator | Oct 2021 |
| 10552 | Fluid Disposal Services LLC | Chickasha, OK 73018-9684 | Oil Operator | Aug 2015 |
| 10553 | Fluor Oil & Gas Corporation | Midland, TX 79701 | Oil & Gas Operator | Aug 2019 |
| 10554 | Flusche Brothers | Muenster, TX 76252 | Oil & Gas Operator | Apr 2025 |
| 10555 | Flusche Herbert J | Wichita Falls, TX 76309 | Oil Operator | Jun 1997 |
| 10556 | Flusche Properties, L.L.C. | Electra, TX 76360 | Oil & Gas Operator | Jan 2017 |
| 10557 | Flusche Supply, Inc. | Electra, TX 76360 | Oil & Gas Operator | Aug 1994 |
| 10558 | Flusche, Herb | Wichita Falls, TX 76309 | Oil & Gas Operator | Mar 2005 |
| 10559 | Fluvanna Community Church | Jamestown, NY 14701 | Gas Operator | Dec 2023 |
| 10560 | Flux Energy LLC | Spring, TX 77379 | Oil & Gas Operator | Apr 2025 |
| 10561 | Flying Diamond Oil Corp | | Oil & Gas Operator | Dec 1983 |
| 10562 | Flying J Inc | Roosevelt, UT 84066 | Oil & Gas Operator | Jul 1995 |
| 10563 | Flying J Oil & Gas Inc | North Salt Lake, UT 84054 | Oil & Gas Operator | Dec 2009 |
| 10564 | Flying M Petroleum LLC | Bristow, OK 74010 | Oil & Gas Operator | Dec 2024 |
| 10565 | Flying W Resources, LLC | Midland, TX 79701 | Oil & Gas Operator | Apr 2025 |
| 10566 | Flynn Energy Cor | | Oil & Gas Operator | Mar 1992 |
| 10567 | Flynn Energy Corporation | Tulsa, OK 74137 | Oil & Gas Operator | Mar 1993 |
| 10568 | Flynn, Ben A. Trustee | Coleman, TX 76834 | Oil & Gas Operator | Jul 2001 |
| 10569 | FMC Corporation | Green River, WY 82935 | Oil & Gas Operator | Dec 2008 |
| 10570 | FMD Oil Co. | Gainesville, TX 76240 | Oil & Gas Operator | Nov 2020 |
| 10571 | FMP Operating Co., LTD. PTN. | | Oil & Gas Operator | Mar 1990 |
| 10572 | FMR Services Inc. | | Gas Operator | Dec 2011 |
| 10573 | Fna Oil Company, LLC | Richfield, KS 67953 | Gas Operator | Dec 2024 |
| 10574 | Fne Operating LLC | | Oil Operator | Dec 2024 |
| 10575 | Fo Energy LLC | Canton, OH 44718 | Oil & Gas Operator | Dec 2024 |
| 10576 | Foag, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Jun 2022 |
| 10577 | Focus Energy, Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Nov 2019 |
| 10578 | Fod Oil Company | | Oil Operator | May 1999 |
| 10579 | Foggy Bottom Farms, LLC | Bowling Green, KY 42101 | Oil Operator | Dec 2023 |
| 10580 | Fola Land Company Inc | | Gas Operator | Dec 2003 |
| 10581 | Folk Oil | | Oil Operator | Dec 2009 |
| 10582 | Follett Operating Co. | Darrouzett, TX 79024 | Oil & Gas Operator | Jun 2019 |
| 10583 | Foltz & Foltz LTD Partnership | Robertsville, OH 44670 | Oil & Gas Operator | Dec 2018 |
| 10584 | Fontainebleau Operating, LLC | | Oil & Gas Operator | Dec 2024 |
| 10585 | Fontenot Pet Land Services, Inc. | | Oil & Gas Operator | Aug 2002 |
| 10586 | Foothill Energy, LLC | Spring, TX 77393 | Oil & Gas Operator | Apr 2025 |
| 10587 | Foothills Energy LLC | Seabrook, TX 77586-3541 | Gas Operator | Feb 2013 |
| 10588 | Foothills Texas, Inc. | Houston, TX 77269 | Oil & Gas Operator | Aug 2019 |
| 10589 | Fora Company | Borger, TX 79007 | Oil & Gas Operator | Apr 2025 |
| 10590 | Forbes Harold G | | Oil Operator | Dec 1984 |
| 10591 | Forbes Producing, LLC | Corpus Chrsti, TX 78410 | Oil Operator | Apr 2025 |
| 10592 | Forbes, C. C. Company | Alice, TX 78333 | Oil & Gas Operator | Sep 2015 |
| 10593 | Forbes, Charles C. | Hebbronville, TX 78361 | Oil & Gas Operator | Jul 2011 |
| 10594 | Forbes, Patrick T. | Eureka, KS 67045 | Oil Operator | Nov 2024 |
| 10595 | Force 4 Energy Resources, Inc. | Austin, TX 78733 | Oil & Gas Operator | Aug 2005 |
| 10596 | Force 5 Energy, LLC | Houston, TX 77090 | Oil & Gas Operator | Dec 2018 |
| 10597 | Force Antrim Development Inc | | Gas Operator | Dec 1999 |
| 10598 | Forcenergy Gas Exploration Inc. | Miami, FL 33129 | Oil & Gas Operator | Aug 1996 |
| 10599 | Forcenergy Inc | Miami, FL 33129 | Oil & Gas Operator | Mar 2015 |
| 10600 | Forcenergy Onshore Inc. | Houston, TX 77002 | Oil & Gas Operator | Dec 2012 |