| 10001 | Felty, F. T. Operating Company | Burkburnett, TX 76354 | Oil & Gas Operator | Jul 2018 |
| 10002 | Femco Services Inc | Lindsay, OK 73052-0632 | Oil & Gas Operator | Nov 2006 |
| 10003 | Femco SWD Inc | Enid, OK 73702-3907 | Oil Operator | Mar 2014 |
| 10004 | Fender Expl & Prod Co., L.L.C. | Tyler, TX 75710 | Oil & Gas Operator | Sep 2004 |
| 10005 | Fender, Mildred A. | Russell, KS 67665 | Oil & Gas Operator | Jun 2000 |
| 10006 | Fenix Petroleum Group LLC | Washington, TX 77880 | Oil Operator | Jul 2019 |
| 10007 | Fenn, Bill Inc. | Giddings, TX 78942 | Oil & Gas Operator | Mar 2008 |
| 10008 | Fenno, Tom Prod. | FT Collins, CO 80524 | Oil & Gas Operator | Mar 2018 |
| 10009 | Fenoglio Energy Production, LLC | Nocona, TX 76255 | Oil Operator | Nov 2024 |
| 10010 | Fenoglio Oil Company | Nocona, TX 76255 | Oil Operator | Nov 2024 |
| 10011 | Fenoglio, Donnie Oil Company | Nocona, TX 76255 | Oil & Gas Operator | Feb 2014 |
| 10012 | Fenway Energy Development Co. | Midland, TX 79701 | Oil & Gas Operator | Nov 2024 |
| 10013 | Ferenbaugh Albert & Denise | Danville, OH 43014 | Oil & Gas Operator | Dec 2023 |
| 10014 | Fergus Oil & Gas, LLC | Allen, TX 75013 | Oil Operator | Nov 2024 |
| 10015 | Ferguson & Bosworth | | Oil & Gas Operator | May 2007 |
| 10016 | Ferguson Bob | Casper, WY 82605 | Oil Operator | May 2004 |
| 10017 | Ferguson Energy Inc | Evanston, WY 82930 | Oil & Gas Operator | Aug 2024 |
| 10018 | Ferguson Oil & Gas Inc. | Austin, TX 78746 | Oil & Gas Operator | Nov 2024 |
| 10019 | Ferguson Oil Company Inc | | Oil & Gas Operator | Apr 1994 |
| 10020 | Ferguson Orval L | | Oil & Gas Operator | Oct 1983 |
| 10021 | Ferguson, S. M. Jr., Inc. | Dallas, TX 75218 | Oil & Gas Operator | Nov 2024 |
| 10022 | Ferguson-Burns Leasing Co. | Rockdale, TX 76567 | Oil & Gas Operator | Oct 2007 |
| 10023 | Ferguson-Hunter Explor Inc | N Little Rock, AR 72120-1667 | Oil & Gas Operator | Aug 2016 |
| 10024 | Fernwood Corporation | | Oil Operator | Dec 1986 |
| 10025 | Ferraro Energy Corporation | Oklahoma City, OK 73114-6629 | Oil & Gas Operator | Aug 2013 |
| 10026 | Ferreira Oil Properties LLC | Carefree, AZ 85377 | Oil Operator | Apr 2014 |
| 10027 | Ferris, Wakyn W. | Denver, CO 80202 | Oil Operator | Jun 1988 |
| 10028 | Ferry Lake Oil Co. | | Oil & Gas Operator | Jul 2024 |
| 10029 | Fesco, LTD. | Alice, TX 78332 | Oil Operator | Nov 2024 |
| 10030 | Fetterman Samuel C SR | Rossiter, PA 15772 | Gas Operator | Dec 2022 |
| 10031 | Fewins, Gary D. | Moran, KS 66755 | Oil Operator | Jul 2019 |
| 10032 | FF&N Oil Company | Spearsville, LA 71277 | Oil & Gas Operator | Jul 2024 |
| 10033 | Ffa Petroleum Services | Victoria, TX 77903 | Oil & Gas Operator | Sep 2001 |
| 10034 | Ffa Petroleum Services, Inc. | Boerne, TX 78006 | Oil & Gas Operator | Feb 2018 |
| 10035 | FG III LLC | Colleyville, TX 76034-4963 | Oil & Gas Operator | Apr 2018 |
| 10036 | FGB Energy, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Aug 2017 |
| 10037 | FGS Energy LLC | Duncan, OK 73533-1829 | Oil & Gas Operator | Sep 2024 |
| 10038 | FH Operation Company, Inc. | Dallas, TX 75381 | Oil & Gas Operator | Apr 2005 |
| 10039 | FH Petroleum Corp. | Billings, MT 59103 | Oil & Gas Operator | Sep 2024 |
| 10040 | Fha Investments LLC | Cushing, OK 74023 | Oil & Gas Operator | Sep 2024 |
| 10041 | Fha Operating LLC | Cushing, OK 74023-1030 | Oil & Gas Operator | Sep 2024 |
| 10042 | Fi-Ro Corporation | Natchez, MS BADADDR | Oil & Gas Operator | Nov 2001 |
| 10043 | Fidelity E&P Company | Denver, CO 80202 | Oil & Gas Operator | Feb 2016 |
| 10044 | Fidelity Energy Co. | Gainesville, TX 76241 | Oil & Gas Operator | Apr 2008 |
| 10045 | Fidelity Energy, Inc. | Houston, TX 77055 | Oil & Gas Operator | Dec 2009 |
| 10046 | Fidelity Explor. & Prod. Co. | Denver, CO 80202 | Oil & Gas Operator | Nov 2015 |
| 10047 | Fidelity Exploration & Production Company | Denver, CO 80203 | Oil & Gas Operator | Oct 2024 |
| 10048 | Fidelity Petroleum Corporation | Plano, TX 75074 | Oil & Gas Operator | Nov 2024 |
| 10049 | Fidgets Energy LLC | Checotah, OK 74426-5309 | Oil Operator | Sep 2024 |
| 10050 | Field Petroleum Corp. | San Antonio, TX 78216 | Oil & Gas Operator | Nov 2024 |
| 10051 | Field Production Company | Cleburne, TX 76033 | Oil & Gas Operator | Mar 2023 |
| 10052 | Field Service, Inc. | West Seneca, NY 14206 | Gas Operator | Dec 2023 |
| 10053 | Fields Exploration, Inc. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Aug 2015 |
| 10054 | Fields Oil & Gas Company, LLC | Dallas, TX 75230 | Oil & Gas Operator | Nov 2024 |
| 10055 | Fields, Bert, Jr. | Dallas, TX 75230 | Oil & Gas Operator | Apr 2015 |
| 10056 | Fieldstone Exploration Co | Tulsa, OK 74136 | Oil & Gas Operator | Jan 2007 |
| 10057 | Fieldwood Energy LLC | Houston, TX 77042 | Oil & Gas Operator | Jul 2024 |
| 10058 | Fieldwood Energy Offshore LLC | Houston, TX 77042 | Oil & Gas Operator | Nov 2024 |
| 10059 | Fieldwood Onshore LLC | Houston, TX 77098 | Oil & Gas Operator | Nov 2024 |
| 10060 | Fiesta Energy LLC | Midland, TX 79705 | Oil Operator | Nov 2024 |
| 10061 | Fife Oil & Gas | | Oil Operator | Oct 1987 |
| 10062 | Fife Oil & Gas, Inc. | | Oil Operator | Mar 1991 |
| 10063 | Fife Oil Company, Inc. | | Oil & Gas Operator | Feb 2008 |
| 10064 | Fifth Creek Energy Operating Company LLC | | Oil & Gas Operator | Mar 2018 |
| 10065 | Fifty Third Corp. & K.M.O.C. | | Gas Operator | Jul 1994 |
| 10066 | Fifty-One Production Inc | Mannford, OK 74044 | Oil & Gas Operator | Jan 2013 |
| 10067 | Fifty-Third Corporation | | Gas Operator | Jul 1994 |
| 10068 | Figgie Natural Resources | Wickliffe, OH 44092 | Oil & Gas Operator | Oct 1995 |
| 10069 | Figure 3 Operating LLC | Tyler, TX 75703 | Oil Operator | Nov 2024 |
| 10070 | Filco Incorporated | | Oil & Gas Operator | Oct 2024 |
| 10071 | Fiml Natural Resources LLC (FNR) | Denver, CO 80202-4438 | Oil & Gas Operator | Jul 2014 |
| 10072 | Fiml Natural Resources, LLC | Denver, CO 80202 | Oil & Gas Operator | Aug 2014 |
| 10073 | Fin Energy, LLC | Wichita Falls, TX 76308 | Oil Operator | Nov 2024 |
| 10074 | Fin-Oil, Inc. | | Oil & Gas Operator | Apr 1985 |
| 10075 | Fina Oil & Chemi | | Oil & Gas Operator | Oct 1995 |
| 10076 | Fina Oil & Chemical | Midland, TX 797022455 | Oil & Gas Operator | Apr 1999 |
| 10077 | Fina Oil And Chemical Company | Dallas, TX 75221 | Oil & Gas Operator | May 2019 |
| 10078 | Fina Oil& Chem Co/Marathon Oil | | Oil & Gas Operator | Dec 1992 |
| 10079 | Finaly Resources LLC | Sunset Beach, CA 90742 | Oil & Gas Operator | Nov 2024 |
| 10080 | Finch-Crestmont | Houston, TX 77027 | Oil & Gas Operator | Oct 2012 |
| 10081 | Finck Oil & Gas Co | Junction City, OH 43748 | Oil & Gas Operator | Dec 2023 |
| 10082 | Finders Co And Sullivan And Co | | Oil & Gas Operator | May 1987 |
| 10083 | Finders Co The | | Oil & Gas Operator | Jan 1998 |
| 10084 | Fine Jack | Pensacola, FL 32516 | Oil Operator | May 1995 |
| 10085 | Finger Oil & Gas, Inc. | Castroville, TX 78009 | Oil & Gas Operator | May 2021 |
| 10086 | Finkelstein, Jack, Trustee | Houston, TX 77027 | Oil & Gas Operator | Apr 2007 |
| 10087 | Finlay Energy, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Jul 1999 |
| 10088 | Finley Oil Compa | | Oil Operator | Oct 1992 |
| 10089 | Finley Oil Company, LLC | Liberty, TX 77575 | Oil Operator | Nov 2024 |
| 10090 | Finley Resources Inc | Fort Worth, TX 76113 | Oil & Gas Operator | Nov 2024 |
| 10091 | Finley, Billy D | Burkesville, KY 42717 | Oil Operator | Dec 2020 |
| 10092 | Finnell Oil Co. | Wichita Falls, TX 76308 | Oil & Gas Operator | Sep 2009 |
| 10093 | Finnell Oil Services, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Nov 2024 |
| 10094 | Finney Drilling Co. | Wann, OK 74083-2314 | Oil Operator | Jul 2018 |
| 10095 | Finney Kyler A Dba Finney Oil Co | Wann, OK 74083 | Oil Operator | Sep 2024 |
| 10096 | Finney Oil Company | | Oil & Gas Operator | Jul 2024 |
| 10097 | Finston Arthur | Tulsa, OK 74105-7183 | Oil & Gas Operator | Mar 2007 |
| 10098 | Firebird Energy II LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Nov 2024 |
| 10099 | Firebird Energy LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Nov 2022 |
| 10100 | Firehouse Energy LLC | Morris, OK 74445 | Oil & Gas Operator | Mar 2024 |