| 15001 | Jenco Petroleum Corporation | The Woodlands, TX 77380 | Oil Operator | Apr 2025 |
| 15002 | Jenco Resources, Inc. | | Oil & Gas Operator | Aug 2009 |
| 15003 | Jenex Operating Company | The Woodlands, TX 77380-164280209 | Oil & Gas Operator | May 2019 |
| 15004 | Jenex Operating Company Of Texas | Denver, CO 80209 | Oil & Gas Operator | Aug 2003 |
| 15005 | Jenex Petroleum Corporation | The Woodlands, TX 77380 | Oil & Gas Operator | Apr 2025 |
| 15006 | Jenkins & Archer | Paintsville, KY 41240 | Gas Operator | Dec 2018 |
| 15007 | Jenkins & Broyle | | Oil & Gas Operator | Sep 1991 |
| 15008 | Jenkins & Broyles Production Company | | Oil Operator | Dec 2006 |
| 15009 | Jenkins & Sons Production, Inc. | Arkansas City, KS 67005 | Oil Operator | Jul 2014 |
| 15010 | Jenkins Charles L | Edmond, OK 73083-3610 | Oil Operator | Jul 1996 |
| 15011 | Jenkins Charley W Dba Jenkins Oil Company | Duncan, OK 73533-3204 | Oil Operator | Mar 2015 |
| 15012 | Jenkins Creek Operations LLC | Springtown, TX 76082 | Oil Operator | Apr 2025 |
| 15013 | Jenkins Energy Company | Ardmore, OK 73401-0714 | Oil Operator | Oct 2024 |
| 15014 | Jenkins Energy Corp & H Davis Jenkins | | Gas Operator | Dec 2011 |
| 15015 | Jenkins Oil & Gas, Inc. | | Oil & Gas Operator | Aug 1992 |
| 15016 | Jenkins Oil Corporation | Hankamer, TX 77560 | Oil & Gas Operator | Mar 2008 |
| 15017 | Jenkins Petroleum Inc | Stillwater, OK 74076 | Oil & Gas Operator | Mar 1994 |
| 15018 | Jenkins Walter D | Oklahoma City, OK 73156-1022 | Oil & Gas Operator | Mar 2011 |
| 15019 | Jenkins, Don(Deceased)Estate | Arkansas City, KS 67005 | Oil & Gas Operator | Dec 2009 |
| 15020 | Jenkins, Donnie G. Jr. | Arkansas City, KS 67005 | Oil Operator | Dec 2019 |
| 15021 | Jenkins, Oliver | Paintsville, KY 41240 | Gas Operator | Dec 2014 |
| 15022 | Jenkins, R. D. | Rockdale, TX 76567 | Oil & Gas Operator | Apr 2025 |
| 15023 | Jenn Oil | Albany, TX 76430 | Oil & Gas Operator | Apr 2025 |
| 15024 | Jennings Drillin | | Oil & Gas Operator | Jul 1988 |
| 15025 | Jennings DRLG Co, Inc | | Oil & Gas Operator | Dec 1997 |
| 15026 | Jennings Exploration Company | Beeville, TX 78102 | Oil & Gas Operator | Feb 2024 |
| 15027 | Jennings Holdings, LLC | | Oil & Gas Operator | Dec 2024 |
| 15028 | Jennings Oil Of VIvian LLC | | Oil Operator | Jan 2025 |
| 15029 | Jennings Petroleum And Enveron Corp | | Oil & Gas Operator | Mar 2017 |
| 15030 | Jennings Petroleum Corp | | Oil & Gas Operator | Dec 1988 |
| 15031 | Jericho Energy, Inc | Lipan, TX 76462 | Gas Operator | Apr 2025 |
| 15032 | Jericho Exploration | Weleetka, OK 74880-0704 | Oil & Gas Operator | Jan 2025 |
| 15033 | Jerico Resources LLC | Seminole, OK 74868-6538 | Oil & Gas Operator | Apr 2020 |
| 15034 | Jernigan Steve I | | Oil Operator | Mar 1993 |
| 15035 | Jerome K & Rosemary Graber | Jamestown, PA 16134 | Oil & Gas Operator | Dec 2022 |
| 15036 | Jeron Oil And Gas Inc | Denison, TX 75020 | Oil & Gas Operator | Jun 2000 |
| 15037 | Jerry Barnett & Son | Graham, TX 76450 | Oil Operator | Sep 2024 |
| 15038 | Jerry Hess Operating Company | Muenster, TX 76252 | Oil Operator | Dec 2008 |
| 15039 | Jerry J. Tuma | | Oil & Gas Operator | Mar 1985 |
| 15040 | Jerry Malmay | | Oil Operator | Aug 2011 |
| 15041 | Jerry Moore Inc | Hartville, OH 44632 | Oil & Gas Operator | Dec 2023 |
| 15042 | Jerry Oil Co. | Riverside, IL 60546 | Oil & Gas Operator | Dec 1990 |
| 15043 | Jerry P Ogden | | Oil & Gas Operator | Dec 2008 |
| 15044 | Jerry Patterson Oil | | Oil Operator | May 2004 |
| 15045 | Jerry R. Craig | | Oil & Gas Operator | Dec 2012 |
| 15046 | Jerry Sanner Oil Properties Inc | Enid, OK 73701 | Oil & Gas Operator | Feb 2025 |
| 15047 | Jerry Scott Drilling Company Inc | Ada, OK 74821 | Oil & Gas Operator | Dec 2024 |
| 15048 | Jerry W Guy & Thurman F Duncan | Hobbs, NM 88241 | Oil & Gas Operator | May 2016 |
| 15049 | Jesam Energy LLC | Glenville, WV 26351 | Oil & Gas Operator | Dec 2021 |
| 15050 | Jesmar Energy Inc | Holbrook, PA 15341-1318 | Oil & Gas Operator | Dec 2024 |
| 15051 | Jess Energy Company | Tyler, TX 75710 | Oil & Gas Operator | Sep 1997 |
| 15052 | Jesse Franklin Rosett | | Oil & Gas Operator | Jan 1981 |
| 15053 | Jesse Operating LLC | Konawa, OK 74849-4917 | Oil Operator | Jul 2024 |
| 15054 | Jesse'S Oilfield Service | Okemah, OK 74859-0061 | Oil & Gas Operator | Sep 2014 |
| 15055 | Jesus Maria Corporation | San Antonio, TX 78216 | Oil Operator | Apr 2025 |
| 15056 | Jeswood Productions, LLC | Denton, TX 76206 | Oil & Gas Operator | Apr 2025 |
| 15057 | Jet Black Oil, Inc. | Katy, TX 77494 | Oil Operator | Apr 2025 |
| 15058 | Jet Drilling Cor | | Oil Operator | Oct 1995 |
| 15059 | Jet Drilling Corp. | Scottsdale, AZ 85252 | Oil & Gas Operator | Dec 1996 |
| 15060 | Jet Exploration 1995-1 LLC | | Gas Operator | Jan 2000 |
| 15061 | Jet Exploration Inc | | Oil & Gas Operator | May 1998 |
| 15062 | Jet Oil Co12/Ofb See 18649 | | Oil & Gas Operator | Jul 2007 |
| 15063 | Jet Oil Corp | | Oil & Gas Operator | Feb 1999 |
| 15064 | Jet Oil Producers | Coldspring, TX 77331 | Oil & Gas Operator | Mar 2008 |
| 15065 | Jet Oil Producers, Inc. | Coldspring, TX 77331 | Oil & Gas Operator | Apr 2025 |
| 15066 | Jet Production Company | Kilgore, TX 75663 | Oil & Gas Operator | Jun 2002 |
| 15067 | Jet-Star Co. | Gainesville, TX 76240 | Oil & Gas Operator | Apr 2025 |
| 15068 | Jet-Tex Oil & Gas, LLC | Rockdale, TX 76567 | Oil Operator | Apr 2025 |
| 15069 | Jetco Exploration | Victoria, TX 77903 | Oil & Gas Operator | May 2007 |
| 15070 | Jeter Drilling Production | Del Rio, TX 78840 | Oil & Gas Operator | Apr 2025 |
| 15071 | Jetgo Oil Compan | | Oil & Gas Operator | Jan 1995 |
| 15072 | Jetson Operating Inc | Ada, OK 74820 | Oil & Gas Operator | Sep 2024 |
| 15073 | Jett Drilling Co. | | Oil & Gas Operator | Feb 1984 |
| 15074 | Jett Oil LLC | Warren, PA 16365-4366 | Oil & Gas Operator | Dec 2024 |
| 15075 | Jetta Operating Appalachia, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2023 |
| 15076 | Jetta Operating Company Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2025 |
| 15077 | Jetta Permian, LP | Midland, TX 79701 | Oil & Gas Operator | Jun 2021 |
| 15078 | Jettison, Inc. | | Oil & Gas Operator | Mar 2025 |
| 15079 | Jew-Del Oil & Ga | | Gas Operator | Dec 1994 |
| 15080 | Jewell Consulting Inc | Bixby, OK 74008 | Oil & Gas Operator | Dec 2022 |
| 15081 | Jezek, Ernest D. | Holyrood, KS 67450 | Oil Operator | Dec 2019 |
| 15082 | JF Trust | Wichita Falls, TX 76301 | Oil & Gas Operator | Jul 2024 |
| 15083 | JFC Construction LLC | East Bernard, TX 77435 | Oil Operator | Apr 2025 |
| 15084 | JFD,Inc | Houston, TX 77041-6914 | Oil & Gas Operator | Feb 2000 |
| 15085 | JFW Incorporated | Plevna, KS 67568 | Oil & Gas Operator | Oct 2006 |
| 15086 | JGC Energy Development (USA) Inc. | | Oil & Gas Operator | Aug 2014 |
| 15087 | JGC Oil Co. | Austin, TX 78732 | Oil & Gas Operator | Apr 2025 |
| 15088 | JGK Oil, Inc. | Chanute, KS 66720 | Oil Operator | Aug 1998 |
| 15089 | Jhatco Inc | Enid, OK 73701 | Oil & Gas Operator | Feb 2025 |
| 15090 | JHC II LLC | Zanesville, OH 43701 | Oil & Gas Operator | Dec 2023 |
| 15091 | JHC Oil & Gas Inc | Fulshear, TX 77441 | Oil Operator | Apr 2025 |
| 15092 | JHL Energy, Inc. | Wichita, KS 67209 | Oil & Gas Operator | Apr 2016 |
| 15093 | JHP Operating, LLC | Dallas, TX 75225 | Oil & Gas Operator | Apr 2025 |
| 15094 | JHS Energy, Inc | Denver, CO 80222 | Oil & Gas Operator | Dec 2024 |
| 15095 | JHS Oilfield Services LLC | Dallas, TX 75206 | Oil Operator | Apr 2025 |
| 15096 | Ji Energy LLC | Midland, TX 79707 | Gas Operator | Apr 2025 |
| 15097 | Jiahe Energy, LLC | Katy, TX 77450 | Gas Operator | Apr 2025 |
| 15098 | Jicarilla Energy Co | Farmington, NM 87401 | Oil & Gas Operator | Jan 2025 |
| 15099 | Jico Exploration Inc | Oklahoma City, OK 73118 | Oil & Gas Operator | Nov 2004 |
| 15100 | Jil Oil Corp. | San Antonio, TX 78279 | Oil & Gas Operator | Apr 2025 |