| 9901 | Fidelity E&P Company | Denver, CO 80202 | Oil & Gas Operator | Feb 2016 |
| 9902 | Fidelity Energy Co. | Gainesville, TX 76241 | Oil & Gas Operator | Apr 2008 |
| 9903 | Fidelity Energy, Inc. | Houston, TX 77055 | Oil & Gas Operator | Dec 2009 |
| 9904 | Fidelity Explor. & Prod. Co. | Denver, CO 80202 | Oil & Gas Operator | Nov 2015 |
| 9905 | Fidelity Exploration & Production Company | Denver, CO 80203 | Oil & Gas Operator | Apr 2026 |
| 9906 | Fidelity Petroleum Corporation | Plano, TX 75074 | Oil & Gas Operator | Jun 2026 |
| 9907 | Fidgets Energy LLC | Checotah, OK 74426-5309 | Oil Operator | Oct 2024 |
| 9908 | Field Petroleum Corp. | San Antonio, TX 78216 | Oil & Gas Operator | Jun 2026 |
| 9909 | Field Production Company | Cleburne, TX 76033 | Oil & Gas Operator | Mar 2023 |
| 9910 | Field Service, Inc. | West Seneca, NY 14206 | Gas Operator | Dec 2024 |
| 9911 | Fields Exploration, Inc. | Corpus Christ, TX 78401 | Oil & Gas Operator | Aug 2015 |
| 9912 | Fields Oil & Gas Company, LLC | Dallas, TX 75230 | Oil & Gas Operator | Jun 2026 |
| 9913 | Fields, Bert, Jr. | Dallas, TX 75230 | Oil & Gas Operator | Apr 2015 |
| 9914 | Fieldstone Exploration Company | | Oil & Gas Operator | Jan 2007 |
| 9915 | Fieldwood Energy LLC | Houston, TX 77042 | Oil & Gas Operator | Dec 2024 |
| 9916 | Fieldwood Energy Offshore LLC | Houston, TX 77042 | Oil & Gas Operator | Jun 2026 |
| 9917 | Fieldwood Onshore LLC | Houston, TX 77098 | Oil & Gas Operator | Jun 2026 |
| 9918 | Fiesta Energy LLC | Corpus Christ, TX 78404 | Oil & Gas Operator | Jun 2026 |
| 9919 | Fife Oil & Gas | | Oil Operator | Oct 1987 |
| 9920 | Fife Oil & Gas, Inc. | | Oil Operator | Mar 1991 |
| 9921 | Fife Oil Company, Inc. | | Oil & Gas Operator | Feb 2008 |
| 9922 | Fifty Third Corp. & K.M.O.C. | | Gas Operator | Jul 1994 |
| 9923 | Fifty-Third Corporation | | Gas Operator | Jul 1994 |
| 9924 | Figgie Natural Resources | Wickliffe, OH 44092 | Oil & Gas Operator | Oct 1995 |
| 9925 | Figure 3 Operating LLC | Tyler, TX 75703 | Oil Operator | Dec 2024 |
| 9926 | Filco Incorporated | | Oil & Gas Operator | Apr 2026 |
| 9927 | Fiml Natural Resources LLC (FNR) | Denver, CO 80202-4438 | Oil & Gas Operator | Jul 2014 |
| 9928 | Fiml Natural Resources, LLC | Denver, CO 80202 | Oil & Gas Operator | Aug 2014 |
| 9929 | Fin Energy, LLC | Wichita Falls, TX 76308 | Oil Operator | Jun 2026 |
| 9930 | Fin-Oil, Inc. | | Oil & Gas Operator | Apr 1985 |
| 9931 | Fina Oil & Chemi | | Oil & Gas Operator | Oct 1995 |
| 9932 | Fina Oil & Chemical | Midland, TX 797022455 | Oil & Gas Operator | Apr 1999 |
| 9933 | Fina Oil And Chemical Company | Dallas, TX 75221 | Oil & Gas Operator | May 2019 |
| 9934 | Fina Oil& Chem Co/Marathon Oil | | Oil & Gas Operator | Dec 1992 |
| 9935 | Finaly Resources LLC | Sunset Beach, CA 90742 | Oil & Gas Operator | Jun 2026 |
| 9936 | Finch-Crestmont | Houston, TX 77027 | Oil & Gas Operator | Oct 2012 |
| 9937 | Finck Oil & Gas Co | Junction City, OH 43748 | Oil & Gas Operator | Dec 2025 |
| 9938 | Finders Co And Sullivan And Co | | Oil & Gas Operator | May 1987 |
| 9939 | Finders Co The | | Oil & Gas Operator | Jan 1998 |
| 9940 | Fine Jack | Pensacola, FL 32516 | Oil Operator | May 1995 |
| 9941 | Finger Oil & Gas, Inc. | Castroville, TX 78009 | Oil & Gas Operator | May 2021 |
| 9942 | Finkelstein, Jack, Trustee | Houston, TX 77027 | Oil & Gas Operator | Apr 2007 |
| 9943 | Finlay Energy, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Jul 1999 |
| 9944 | Finley Oil Compa | | Oil Operator | Oct 1992 |
| 9945 | Finley Oil Company, LLC | Liberty, TX 77575 | Oil Operator | Jun 2026 |
| 9946 | Finley Resources Inc | Fort Worth, TX 76113 | Oil & Gas Operator | Jun 2026 |
| 9947 | Finley, Billy D | Burkesville, KY 42717 | Oil Operator | Dec 2020 |
| 9948 | Finnell Oil Co. | Wichita Falls, TX 76308 | Oil & Gas Operator | Sep 2009 |
| 9949 | Finnell Oil Services, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Jun 2026 |
| 9950 | Finney Drilling Company | Wann, OK 74083-2314 | Oil Operator | Jul 2018 |
| 9951 | Finney Kyler A Dba Finney Oil Co | Wann, OK 74083 | Oil Operator | Apr 2026 |
| 9952 | Finney Oil Company | | Oil & Gas Operator | Feb 2026 |
| 9953 | Finston Arthur | Tulsa, OK 74105-7183 | Oil & Gas Operator | Mar 2007 |
| 9954 | Firebird Energy II LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Jun 2026 |
| 9955 | Firebird Energy LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Nov 2022 |
| 9956 | Firehouse Energy LLC | Morris, OK 74445 | Oil & Gas Operator | Mar 2024 |
| 9957 | Firerock Company | Abilene, TX 79602 | Oil & Gas Operator | Jun 2026 |
| 9958 | Fireside Oil And Gas, Inc. | West Monroe, LA 71294 | Oil & Gas Operator | Feb 2002 |
| 9959 | Firestone Tire & Rubber | Akron, OH 44317 | Oil & Gas Operator | Dec 1989 |
| 9960 | Firewater, Inc. | Hobbs, NM 88240 | Oil & Gas Operator | Dec 2011 |
| 9961 | Firewheel Operating, LLC | Midland, TX 79701 | Oil & Gas Operator | Nov 2017 |
| 9962 | Firey Oil Company | Sand Springs, OK 74063 | Oil & Gas Operator | Feb 2021 |
| 9963 | First Alliance CH | Erie, PA 16506-5024 | Gas Operator | Dec 2017 |
| 9964 | First Amer Energy Inc | Bradford, PA 16701-0184 | Oil & Gas Operator | Dec 2025 |
| 9965 | First American Operating Co. | Breckenridge, TX 76424 | Oil & Gas Operator | Aug 2006 |
| 9966 | First Aransas Reserves, Inc. | Alvin, TX 77511 | Oil & Gas Operator | Mar 2018 |
| 9967 | First Ascent Operating LLC | Addison, TX 75001 | Oil Operator | Apr 2026 |
| 9968 | First Chinese Baptist Church | | Oil Operator | Dec 2006 |
| 9969 | First Energy Cor | | Oil Operator | Aug 1990 |
| 9970 | First Energy Corporation | | Oil & Gas Operator | Jun 1993 |
| 9971 | First Energy Development Corp. | | Oil & Gas Operator | Sep 2008 |
| 9972 | First Energy Properties | Houston, TX 77060 | Oil & Gas Operator | Dec 1986 |
| 9973 | First Liberty Energy Inc | Boca Raton, FL 33432-5942 | Oil & Gas Operator | Jul 2013 |
| 9974 | First Light Operating, LLC | San Antonio, TX 78217 | Oil & Gas Operator | Jun 2026 |
| 9975 | First National Finance Corporation | | Oil Operator | Dec 1995 |
| 9976 | First National Oil Inc | Edmond, OK 73003 | Oil & Gas Operator | Mar 2026 |
| 9977 | First Natural Gas Inc | Checotah, OK 74426 | Oil & Gas Operator | Apr 2026 |
| 9978 | First Oil And Gas Company | | Oil Operator | Dec 2025 |
| 9979 | First Paragon Properties, L.L.C. | Alice, TX 78333 | Oil Operator | Jun 2026 |
| 9980 | First Permian, L.L.C. | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 9981 | First Reserve Oil & Gas Co | Houston, TX 77002 | Oil & Gas Operator | Apr 2000 |
| 9982 | First Rock, Inc. | Corpus Christ, TX 78401 | Oil & Gas Operator | Jun 2026 |
| 9983 | First Solid Energy Group, LP | Missouri City, TX 77489 | Oil & Gas Operator | Jun 2026 |
| 9984 | First Source Gas, LP | Houston, TX 77010 | Gas Operator | Jan 2006 |
| 9985 | First Source Texas, Inc. | MT Pleasant, MI 48858 | Gas Operator | Nov 2004 |
| 9986 | First Sourcenergy Wyoming Inc | Gillette, WY 82718 | Gas Operator | Jul 2003 |
| 9987 | First South Energy Corp | Hartland, WI 53029 | Oil & Gas Operator | Dec 2014 |
| 9988 | First Texas Exploration Corp. | Arcadia, LA 71001 | Oil & Gas Operator | Aug 2003 |
| 9989 | First Zone Production | Salt Lake City, UT 84102 | Oil & Gas Operator | Dec 1997 |
| 9990 | Firstrike Energy Corporation | Cleburne, TX 76033 | Oil & Gas Operator | Jan 2025 |
| 9991 | Fischer Operating Corporation | Victoria, TX 77902 | Oil & Gas Operator | Jan 1999 |
| 9992 | Fiscus Drilling Co., Inc. | Clyde, TX 79510 | Oil & Gas Operator | Apr 2015 |
| 9993 | Fishburn Producing Inc | Marengo, OH 43334 | Oil & Gas Operator | Dec 2024 |
| 9994 | Fishburn Services Inc | Marengo, OH 43334 | Oil & Gas Operator | Dec 1990 |
| 9995 | Fishcreek Minerals, LLC | Graham, TX 76450 | Oil & Gas Operator | Jun 2026 |
| 9996 | Fisher Ellis R | Bristow, OK 74010-8515 | Oil & Gas Operator | Dec 2015 |
| 9997 | Fisher Ernest B | Bristow, OK 74010 | Oil Operator | Mar 2026 |
| 9998 | Fisher Joint Venture | | Oil & Gas Operator | Oct 1998 |
| 9999 | Fisher McCall Oil And Gas Inc | | Oil Operator | Dec 2014 |
| 10000 | Fisher Oil Co. | Big Lake, TX 76932 | Oil & Gas Operator | Jun 2026 |