| 10001 | Fisher, Jack Inc. | Abilene, TX 79603 | Oil & Gas Operator | Sep 2001 |
| 10002 | Fisher, L. C. Jr. | Longview, TX 75608 | Oil & Gas Operator | May 1993 |
| 10003 | Fisk Family Farms LLC | | Gas Operator | Mar 2026 |
| 10004 | Fitch Petroleum Company Inc | Adair, OK 74330 | Oil Operator | Apr 2026 |
| 10005 | Fite Oil & Gas, Inc. | Shreveport, LA 71163 | Oil & Gas Operator | Jun 2026 |
| 10006 | Fitts, B.K. Oil & Gas | Bowie, TX 76230 | Oil & Gas Operator | Jun 2026 |
| 10007 | Fitzgerald Oil Company | Waurika, OK 73573 | Oil Operator | Mar 2026 |
| 10008 | Fitzgerald Production Co. | Oil City, LA 71061 | Oil & Gas Operator | Dec 2024 |
| 10009 | Fitzpatrick, Stephen | Angola, NY 14006 | Gas Operator | Dec 2024 |
| 10010 | Fitzsimmons Randall W & Deborah S | Bartelsville, OK 74006 | Oil & Gas Operator | Mar 2026 |
| 10011 | Five D Co | Cactus, TX 79013 | Oil & Gas Operator | Sep 1996 |
| 10012 | Five K Partnership | Graham, TX 76450 | Oil & Gas Operator | Oct 2023 |
| 10013 | Five Star Energy, Inc. | Seguin, TX 78155 | Oil & Gas Operator | Mar 2026 |
| 10014 | Five State Energy Co | Dallas, TX 75206 | Oil & Gas Operator | Oct 1995 |
| 10015 | Five States Energy Company | Dallas, TX 75206 | Oil & Gas Operator | Mar 2008 |
| 10016 | Five States Operating Company | Dallas, TX 75206 | Oil & Gas Operator | Feb 2008 |
| 10017 | Five States Operating Company LLC | Dallas, TX 75206 | Oil & Gas Operator | Apr 2026 |
| 10018 | Five-Jab, Inc. | Tomball, TX 77377 | Oil & Gas Operator | Jun 2026 |
| 10019 | Fiveash Operating Company, Inc. | Christoval, TX 76935 | Oil & Gas Operator | Aug 2003 |
| 10020 | Fivestones Energy LLC | Midland, TX 79710 | Oil & Gas Operator | Jun 2026 |
| 10021 | FJH Oil Company | Muenster, TX 76252 | Oil & Gas Operator | Jun 2026 |
| 10022 | Fjo Energy, LLC | Fairhope, AL 36532 | Oil Operator | Jun 2026 |
| 10023 | Flag DRLG Co, Inc | Greenville, KY 42345 | Oil & Gas Operator | Dec 2024 |
| 10024 | Flag Energy, LLC | Centerton, AR 72719 | Oil & Gas Operator | Nov 2018 |
| 10025 | Flag Transport Inc | Shattuck, OK 73858-0848 | Oil Operator | Dec 2014 |
| 10026 | Flag-Redfern Oil Company | Oklahoma City, OK 73125 | Oil & Gas Operator | Jul 2002 |
| 10027 | Flagin Operating LLC | Norman, OK 73072-2405 | Oil & Gas Operator | Feb 2026 |
| 10028 | Flahive Oil & Gas LLC | Golden, CO 80401 | Oil Operator | Oct 1995 |
| 10029 | Flairtex Resources, Inc. | Houston, TX 77040 | Oil & Gas Operator | Oct 1998 |
| 10030 | Flame Energy Co Inc | Dalton, OH 44618 | Oil & Gas Operator | Dec 2006 |
| 10031 | Flamingo Oil & Gas | Luling, TX 78648 | Oil & Gas Operator | Jun 2026 |
| 10032 | Flamingo Operating, LLC | Houston, TX 77084 | Oil & Gas Operator | Jun 2026 |
| 10033 | Flanagan Energy Company LLC | Walters, OK 73572 | Oil Operator | Feb 2025 |
| 10034 | Flanigan Bros | Edinboro, PA 16412-1443 | Oil & Gas Operator | Dec 2025 |
| 10035 | Flare Inc | | Oil & Gas Operator | Jul 1995 |
| 10036 | Flare Oil Inc | Rockport, TX 78382 | Oil & Gas Operator | Jun 2026 |
| 10037 | Flare Resources Inc. | Houston, TX 77002 | Gas Operator | Jun 2006 |
| 10038 | Flash Gas & Oil Northeast, Inc | | Oil & Gas Operator | May 2007 |
| 10039 | Flash Gas & Oil Southwest, Inc. | Mandeville, LA 70470 | Oil & Gas Operator | Oct 2019 |
| 10040 | Flash Gas & Oil, Inc. | | Oil & Gas Operator | May 1991 |
| 10041 | Flat Creek Operating Co. | Rockwall, TX 75087 | Oil & Gas Operator | Jun 2004 |
| 10042 | Flat Creek Resources, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2026 |
| 10043 | Flat Top Operating, LLC | Midland, TX 79707 | Oil & Gas Operator | Jun 2026 |
| 10044 | Flatiron Exploration LLC | Olean, NY 14760 | Oil & Gas Operator | Dec 2024 |
| 10045 | Flatirons Development LLC | Westminster, CO 80020-2771 | Gas Operator | Dec 2015 |
| 10046 | Flatirons Resources LLC | Westminster, CO 80021 | Oil & Gas Operator | Dec 2022 |
| 10047 | Flatland Energy, LLC | Gardner, KS 66030 | Oil Operator | Jan 2026 |
| 10048 | Flatland Oil Com | | Oil Operator | Sep 1985 |
| 10049 | Flatlander Energy LLC | Blackwell, OK 74631 | Oil & Gas Operator | Mar 2026 |
| 10050 | Flatlander Petroleum LLC | | Oil & Gas Operator | Feb 2026 |
| 10051 | Flatonia Energy, LLC | Dallas, TX 75201 | Oil & Gas Operator | Jun 2026 |
| 10052 | Flatrock Energy Co | | Oil & Gas Operator | May 2017 |
| 10053 | Flatt Energy Inc | | Oil & Gas Operator | Sep 2019 |
| 10054 | Flatwater Energy, LLC | | Oil & Gas Operator | Dec 2024 |
| 10055 | Flavian Oil Company | Dallas, TX 75206 | Gas Operator | Jan 1997 |
| 10056 | Fleeharty Willie W | | Oil & Gas Operator | Jun 1991 |
| 10057 | Fleeman Teresa R | Lower Salem, OH 45745 | Oil & Gas Operator | Dec 2025 |
| 10058 | Fleet Frank T | Ada, OK 74821-0729 | Oil & Gas Operator | Feb 2003 |
| 10059 | Fleet Oil Co. | | Oil & Gas Operator | Dec 1991 |
| 10060 | Fleetwood K Phil Oil Properties | Marlow, OK 73055 | Oil & Gas Operator | Mar 2026 |
| 10061 | Fletcher Oil LLC | Ratliff City, OK 73481 | Oil & Gas Operator | Apr 2026 |
| 10062 | Fletcher Operating Co. | | Oil & Gas Operator | May 1989 |
| 10063 | Fletcher Operating, LLC | Fairhope, AL 36532 | Oil & Gas Operator | Jun 2026 |
| 10064 | Fletcher Petroleum Corp. | Fairhope, AL 36533 | Oil & Gas Operator | Mar 2026 |
| 10065 | Fletcher, M. D. | Pampa, TX 79065 | Oil & Gas Operator | Dec 2007 |
| 10066 | Flex Energy, L.L.C. | | Oil & Gas Operator | Feb 2010 |
| 10067 | Flicka Energy Inc | Crescent, OK 73028 | Oil & Gas Operator | Mar 2022 |
| 10068 | Flint Douglas J | Mounds, OK 74047-5415 | Oil & Gas Operator | Sep 2015 |
| 10069 | Flint Equipment LLC | Cushing, OK 74023 | Oil Operator | Mar 2026 |
| 10070 | Flint Hills Production Co., Inc. | Gas City, KS 66742 | Oil Operator | Nov 2009 |
| 10071 | Flint Interests, LLC | Houston, TX 77057 | Oil & Gas Operator | Jun 2026 |
| 10072 | Flint J A & Associates | Holdenville, OK 74848 | Oil & Gas Operator | Sep 2009 |
| 10073 | Flint Oak Energy, LLC | Montgomery, TX 77356 | Oil & Gas Operator | Jun 2026 |
| 10074 | Flint Oil & Gas | San Angelo, TX 76904 | Oil & Gas Operator | Aug 2003 |
| 10075 | Flint Pipeline Company | Kilgore, TX 75663 | Oil & Gas Operator | Jun 2026 |
| 10076 | Flint Rock Resources MGMNT, Inc. | Austin, TX 78734 | Oil & Gas Operator | Jun 2026 |
| 10077 | Flint, Billy Individual | Merkel, TX 79536 | Oil & Gas Operator | Jun 2026 |
| 10078 | Flintlock Exploration, LLC | Frisco, TX 75035 | Oil & Gas Operator | Jun 2026 |
| 10079 | Flintstone Energy, LLC | El Dorado, KS 67042 | Oil Operator | Jun 2020 |
| 10080 | Flo Petro, LLC. | Tyler, TX 75713 | Oil Operator | Jun 2026 |
| 10081 | Floex Energy LLC | Tyler, TX 75701 | Oil Operator | Jun 2026 |
| 10082 | Flood Thirty Seven LLC | Dewey, OK 74029 | Oil Operator | Apr 2026 |
| 10083 | Flora B Shinnick | | Oil Operator | Jan 2025 |
| 10084 | Flora Resources, LLC | | Oil Operator | Oct 2025 |
| 10085 | Florabama Assoc Inc | | Oil & Gas Operator | Jan 2000 |
| 10086 | Florentine Exploration & Production, Inc. | | Oil Operator | Mar 1997 |
| 10087 | Flores & Rucks, Inc. | | Oil & Gas Operator | Jun 1997 |
| 10088 | Florida Exploration Co | Aurora, CO 80014 | Oil & Gas Operator | Sep 1989 |
| 10089 | Florida Gas Exploration Co | | Oil & Gas Operator | Feb 1985 |
| 10090 | Florida Gas Transmission Co. | | Oil Operator | Dec 2007 |
| 10091 | Florine, Inc. | Gypsum, KS 67448 | Oil Operator | Sep 2025 |
| 10092 | Flourison Oil & Gas, LLC | | Oil Operator | Jan 2025 |
| 10093 | Flournoy Oil & Gas, Inc. | Graham, TX 76450 | Oil & Gas Operator | Jun 2026 |
| 10094 | Flournoy Production Co. | Alice, TX 78333 | Oil & Gas Operator | Dec 2002 |
| 10095 | Flournoy, Russell B. | Breckenridge, TX 76424 | Oil & Gas Operator | Jan 2020 |
| 10096 | Flow Energy Inc. | Bellaire, TX 77401 | Oil & Gas Operator | Sep 1996 |
| 10097 | Flow Production Company | Midland, TX 79708 | Oil & Gas Operator | Mar 2005 |
| 10098 | Flowers Prod Com | | Oil Operator | Aug 1994 |
| 10099 | Flowers Production Co., Inc. | El Dorado, KS 67042 | Oil Operator | Jul 2009 |
| 10100 | Flowers Well Ser | | Oil Operator | Feb 1991 |