| 1001 | Jr Oil | Chanute, KS 66720 | Oil & Gas Operator | Oct 2019 |
| 1002 | Jr Resources LP | Ringgold, PA 15770-8346 | Oil & Gas Operator | Dec 2021 |
| 1003 | JRC Oil Company | Garnett, KS 66032 | Oil Operator | Apr 2025 |
| 1004 | JRC Petroleum | Pecos, TX 79772 | Oil & Gas Operator | Sep 2025 |
| 1005 | JRD Energy | Wooster, OH 44691 | Oil & Gas Operator | Dec 1999 |
| 1006 | JRG Exploration, Inc. | Laredo, TX 78041 | Oil & Gas Operator | Jul 2015 |
| 1007 | Jrhop Inc | Norman, OK 73072-4615 | Oil & Gas Operator | Dec 2015 |
| 1008 | JRJ Oil & Gas LLC | Grapevine, TX 76099 | Oil & Gas Operator | Sep 2025 |
| 1009 | JRM Oil Co | Dalton, OH 44618 | Oil & Gas Operator | Dec 1993 |
| 1010 | Jrow Energy LLC | Lubbock, TX 79423 | Oil Operator | Sep 2025 |
| 1011 | JRP Production, LLC | Boling, TX 77420 | Oil Operator | Sep 2025 |
| 1012 | JRP Resources, L.C. | Midland, TX 79708 | Oil & Gas Operator | May 1995 |
| 1013 | JSB, LLC | | Oil & Gas Operator | Dec 2024 |
| 1014 | JSD Oil, LTD. | Seguin, TX 78155 | Oil Operator | Nov 2013 |
| 1015 | JSD Resources Corporation | Barnsdall, OK 74002-3272 | Oil & Gas Operator | May 2025 |
| 1016 | JSG Services, LLC | | Oil & Gas Operator | Sep 2022 |
| 1017 | JSK Oilfield Service LLC | Santa Anna, TX 76878 | Oil Operator | Sep 2025 |
| 1018 | JSM Natural Resources, L.L.C. | Victoria, TX 77904 | Oil & Gas Operator | Dec 2018 |
| 1019 | JT Enterprises | Gorham, KS 67640 | Oil Operator | Aug 1990 |
| 1020 | JT Operating LLC | Douglas, WY 82633 | Oil & Gas Operator | Jul 2025 |
| 1021 | JTB Oil Company, Inc. | Refugio, TX 78377 | Oil & Gas Operator | Sep 2025 |
| 1022 | JTC Oil, Inc. | Louisburg, KS 66053 | Oil Operator | Apr 2025 |
| 1023 | JTC Royalties LLC | Albany, TX 76430 | Oil & Gas Operator | Sep 2025 |
| 1024 | Jtex Oil Company, LLC | Colorado City, TX 79512 | Oil & Gas Operator | Jan 2025 |
| 1025 | JTH Capital Group, LLC | Bowling Green, KY 42103 | Oil Operator | Dec 2023 |
| 1026 | JTL Oil Company LLC | Wichita Falls, TX 76305 | Oil & Gas Operator | Sep 2025 |
| 1027 | JTL Operating Co Inc | Katy, TX 77450 | Oil & Gas Operator | Sep 2025 |
| 1028 | Juart Exploration Inc | Home, PA 15747-6711 | Gas Operator | Dec 2017 |
| 1029 | Jubilee Exploration LLC | Ardmore, OK 73401-7526 | Oil & Gas Operator | Dec 2024 |
| 1030 | Jubilee Oil And Gas Corporation | Houston, TX 77024 | Oil & Gas Operator | Nov 2009 |
| 1031 | Jubilee Oil Corporation | Denison, TX 75020 | Oil Operator | Oct 2012 |
| 1032 | Jubilee Resources, LTD. | Corpus Chrsti, TX 78410 | Oil & Gas Operator | Sep 2025 |
| 1033 | Jud,L.C. | Corpus Chrsti, TX 78473 | Gas Operator | Jul 2003 |
| 1034 | Judah Oil | Artesia, NM 88211 | Oil & Gas Operator | Mar 2010 |
| 1035 | Judah Oil LLC | Artesia, NM 88211 | Oil & Gas Operator | Jun 2025 |
| 1036 | Judge Ken & Lester | Perkins, OK 74059 | Oil & Gas Operator | Aug 2014 |
| 1037 | Judson Enterprises, Inc. | Emporia, KS 66801 | Oil Operator | Apr 2025 |
| 1038 | Judy Company, Inc. | Kansas City, KS 66111 | Oil & Gas Operator | May 2013 |
| 1039 | Judy M & Michael K Hetrick | New Bethlehem, PA 16242-1617 | Gas Operator | Dec 2024 |
| 1040 | Jug Enterprises | | Oil Operator | Jan 1988 |
| 1041 | Julander Energy Company | Denver, CO 80614 | Oil Operator | Apr 2016 |
| 1042 | Juli, Donald W. | Auburn, NY 13021 | Gas Operator | Dec 2024 |
| 1043 | Julian Ard | Fort Worth, TX 76102 | Oil & Gas Operator | Jul 2002 |
| 1044 | Julil Energy, LLC | Richmond, TX 77406 | Oil & Gas Operator | Dec 2024 |
| 1045 | Julius Roy G | Wichita, KS 67206 | Oil & Gas Operator | Jun 2025 |
| 1046 | Julius Wactor Oil Co | | Oil & Gas Operator | Jan 1986 |
| 1047 | Jumbo American Petroleum Corporation | Midland, TX 79701 | Oil & Gas Operator | Apr 2010 |
| 1048 | Juna Operating Co. | Corsicana, TX 75151 | Oil & Gas Operator | Dec 1996 |
| 1049 | Juna Operating, Inc. | Corsicana, TX 75151 | Oil & Gas Operator | Nov 2008 |
| 1050 | June Energy Inc. | | Oil & Gas Operator | May 2000 |
| 1051 | Juneau Energy, LLC | Denver, CO 80202 | Oil & Gas Operator | Sep 2025 |
| 1052 | Juniper Petroleum Corporation | | Oil & Gas Operator | Aug 1983 |
| 1053 | Juniper Resources Exploration Company, LLC | Farmington, NM 87402 | Oil & Gas Operator | Aug 2024 |
| 1054 | Juniper Resources Inc | | Oil Operator | Sep 2004 |
| 1055 | Juno Operating Company II LLC | Plano, TX 75093 | Oil & Gas Operator | Sep 2018 |
| 1056 | Juno Operating Company III, LLC | Plano, TX 75093 | Oil & Gas Operator | Sep 2025 |
| 1057 | Juno Operating Company, LLC | Plano, TX 75093 | Oil & Gas Operator | Jul 2011 |
| 1058 | Jupiter Energy LLC | Richmond, TX 77469 | Oil Operator | Sep 2025 |
| 1059 | Jupiter Oil Corp | | Oil & Gas Operator | Jun 2025 |
| 1060 | Jura Energy Operating LLC | Houston, TX 77024 | Oil & Gas Operator | Sep 2025 |
| 1061 | Jurassic Energy Corporation | Crosby, TX 77532 | Oil & Gas Operator | Sep 2025 |
| 1062 | Jurassic Exploration Co Inc. | | Oil & Gas Operator | Nov 1994 |
| 1063 | Jurassic Exploration, Inc. | Longview, TX 75601 | Oil & Gas Operator | Sep 2025 |
| 1064 | Jurassic Operating Company | Houston, TX 77099 | Oil & Gas Operator | Sep 2025 |
| 1065 | Jurassic Resources Development Na LLC | Bismarck, ND 58504-5835 | Gas Operator | May 2025 |
| 1066 | Just Oil | Midland, TX 79707 | Oil & Gas Operator | Sep 2025 |
| 1067 | Just Oil & Gas, Inc. | Graham, TX 76450 | Oil & Gas Operator | Sep 2025 |
| 1068 | Justice Oil & Gas LLC | Gillette, WY 82716 | Oil & Gas Operator | Jul 2025 |
| 1069 | Justice Oil Co | Hobbs, NM 88241 | Oil & Gas Operator | Dec 1996 |
| 1070 | Justin Energy Corporation | Wellsville, KS 66092 | Oil Operator | Apr 2025 |
| 1071 | Justiss Oil Co., Inc.-Munoco Co. | | Oil & Gas Operator | Dec 2008 |
| 1072 | Justiss Oil Co., Inc.-Munoco Co., L.C. | | Gas Operator | Mar 2001 |
| 1073 | Justiss Oil Company, Inc. | Jena, LA 71342 | Oil & Gas Operator | Apr 2025 |
| 1074 | Justiss-Mears Oil Co. | | Oil & Gas Operator | Feb 1981 |
| 1075 | Justiss-Mears Oil Co., Et Al | | Oil & Gas Operator | Feb 1981 |
| 1076 | Justiss-Mears-D. Latimer | | Oil Operator | Mar 1979 |
| 1077 | Jva Operating Company | Midland, TX 79710 | Oil & Gas Operator | Oct 2021 |
| 1078 | Jvo Petroleum Inc | Shawnee, OK 74801 | Oil & Gas Operator | Jul 1995 |
| 1079 | JW Energy Co., LTD | Fort Worth, TX 76102 | Oil & Gas Operator | Nov 2000 |
| 1080 | JW Exploration LLC Of Texas | Dallas, TX 75287-3329 | Oil & Gas Operator | Jun 2017 |
| 1081 | JWC Oil Operator, LLC | MC Queeney, TX 78123 | Oil Operator | May 2018 |
| 1082 | JWC Operating LLC | | Oil & Gas Operator | Jun 2025 |
| 1083 | JWD Oil & Gas LLC | Oklahoma City, OK 73116-9039 | Oil Operator | Jun 2025 |
| 1084 | Jwimco, L.L.C. | Dallas, TX 75229 | Oil & Gas Operator | May 2025 |
| 1085 | JWR Exploration Inc. | | Oil & Gas Operator | Jul 1989 |
| 1086 | JWR Oil And Gas | | Oil Operator | Nov 2024 |
| 1087 | JXR Company | | Oil Operator | Dec 1991 |
| 1088 | JZJ Corporation | | Oil Operator | May 2010 |