| 1001 | Shawnee Investment Company, Inc. | Council Grove, KS 66846 | Oil Operator | Apr 2002 |
| 1002 | Shawnee Oil Development Co Inc | | Oil & Gas Operator | Oct 2025 |
| 1003 | Shawver & Shawver | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 1004 | Shawver & Son Inc | Oklahoma City, OK 73154-0778 | Oil & Gas Operator | Oct 2024 |
| 1005 | Shawver Energy Inc | Oklahoma City, OK 73154-0683 | Oil & Gas Operator | Apr 2014 |
| 1006 | Shearer James I | Blairsville, PA 15717-0337 | Oil & Gas Operator | Dec 2003 |
| 1007 | Shearer Oil Company | Graham, TX 76450 | Oil & Gas Operator | May 2002 |
| 1008 | Shearer, Robert C | Barberton, OH 44203 | Oil & Gas Operator | Dec 2021 |
| 1009 | Shearhart, Gary L. | Havana, KS 67347 | Oil Operator | Oct 2001 |
| 1010 | Shebester Inc | Maysville, OK 73057 | Oil & Gas Operator | Nov 1998 |
| 1011 | Shed Oil Company | Electra, TX 76360 | Oil Operator | Dec 2025 |
| 1012 | Sheedy Energy Production Company | | Oil Operator | Sep 2025 |
| 1013 | Sheedy, John D. | North Tonawanda, NY 14120 | Gas Operator | Dec 2024 |
| 1014 | Sheel Oil Compan | | Oil Operator | Jan 1985 |
| 1015 | Sheer Energy, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Dec 2025 |
| 1016 | Sheets Exploration Co., Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 2016 |
| 1017 | Sheets George M & Judith A | Tonkawa, OK 74653 | Oil & Gas Operator | Oct 2025 |
| 1018 | Sheets, P. A. | Breckenridge, TX 76424 | Oil & Gas Operator | Jun 1994 |
| 1019 | Sheffler Industries | Phoenix, AZ 85013 | Oil Operator | Aug 1999 |
| 1020 | Shefts & Shefts, Inc. | Luling, TX 78648 | Oil & Gas Operator | Dec 2025 |
| 1021 | Shelburne Oil Company | Oklahoma City, OK 73116-7639 | Gas Operator | Feb 2020 |
| 1022 | Shelby Boswell Operator, LLC | Dallas, TX 75225 | Oil & Gas Operator | Dec 2025 |
| 1023 | Shelby H. Loe, SR. Oil Co. | | Oil Operator | Jul 1989 |
| 1024 | Shelby Operating Company | Dallas, TX 75205 | Oil & Gas Operator | Dec 2025 |
| 1025 | Shelby Operating, Inc. | Flower Mound, TX 75028 | Oil & Gas Operator | Jul 1997 |
| 1026 | Shelby Production Co. | Kilgore, TX 75663 | Oil & Gas Operator | Mar 2009 |
| 1027 | Shelby Production, Inc. | Kilgore, TX 75663 | Gas Operator | Dec 2025 |
| 1028 | Shelby Resources LLC | Denver, CO 80207 | Oil & Gas Operator | Sep 2025 |
| 1029 | Shelby, Michael H. | Shreveport, LA 71101 | Oil & Gas Operator | Dec 2025 |
| 1030 | Shelco | Maysville, MO 64469 | Oil & Gas Operator | May 2021 |
| 1031 | Sheldon Brothers Agency | Salina, KS 67402 | Oil Operator | May 1998 |
| 1032 | Sheldon Resources, L.P. | Bryan, TX 77805 | Oil & Gas Operator | Dec 2025 |
| 1033 | Shelex Drilling Inc | Lexington, KY 40523 | Oil & Gas Operator | Dec 2024 |
| 1034 | Shelf Energy, LLC | | Oil & Gas Operator | Dec 2024 |
| 1035 | Shell Calif. Prod. Inc. | | Oil Operator | Dec 1980 |
| 1036 | Shell Frontier Oil & Gas Inc. | Houston, TX 77001 | Oil & Gas Operator | Feb 1997 |
| 1037 | Shell Land & Energy Co. | Houston, TX 77001 | Oil & Gas Operator | Feb 1997 |
| 1038 | Shell Offshore Inc. | New Orleans, LA 70161 | Oil & Gas Operator | Jan 2008 |
| 1039 | Shell Oil Co. | Houston, TX 77001 | Oil & Gas Operator | Jun 1985 |
| 1040 | Shell Oil Co. -Nola | | Oil & Gas Operator | Jun 2000 |
| 1041 | Shell Onshore Ventures Inc | Houston, TX 77210 | Gas Operator | Jun 2002 |
| 1042 | Shell Rocky Mountain Production LLC | Pinedale, WY 82941 | Oil & Gas Operator | Dec 2008 |
| 1043 | Shell Western E&P | Houston, TX 77001 | Oil & Gas Operator | Dec 2025 |
| 1044 | Shell Western E&P Inc. | Houston, TX 77001 | Oil & Gas Operator | May 2011 |
| 1045 | Shell Western Expl & Prod Inc | Houston, TX 77251 | Oil & Gas Operator | Mar 2015 |
| 1046 | Shelley, Randall D. | Wichita, KS 67202 | Oil Operator | Sep 2025 |
| 1047 | Shelley, Richard W | Wichita Falls, TX 76310 | Oil & Gas Operator | Jun 2015 |
| 1048 | Shelly Energy Inc | Berwyn, PA 19312 | Oil & Gas Operator | Nov 2025 |
| 1049 | Shelly Oil & Gas Inc | Avonmore, PA 15618-9748 | Gas Operator | Dec 2024 |
| 1050 | Shelter Petroleum,Inc | | Oil & Gas Operator | Jun 2014 |
| 1051 | Shelton Alec & Glenda | Kiefer, OK 74041 | Oil & Gas Operator | Aug 2025 |
| 1052 | Shelton Brothers | Okmulgee, OK 74447-6110 | Oil & Gas Operator | Apr 2020 |
| 1053 | Shelton Dempsey L | Glenpool, OK 74033 | Oil & Gas Operator | Dec 2018 |
| 1054 | Shelton Dempsey W | Tulsa, OK 74119-4036 | Oil & Gas Operator | Mar 2015 |
| 1055 | Shelton Oil Company LLC | Collinsville, OK 74021-5619 | Oil Operator | Oct 2025 |
| 1056 | Shelton Oil Resources LLC | Tulsa, OK 74107-4874 | Oil & Gas Operator | Oct 2025 |
| 1057 | Shelton Resources Inc | Tulsa, OK 74119-4036 | Oil & Gas Operator | Feb 2008 |
| 1058 | Shelton, Charles M. | Baytown, TX 77521 | Oil & Gas Operator | Aug 2003 |
| 1059 | Shelton, Robert | Lacygne, KS 66040 | Oil Operator | Sep 2025 |
| 1060 | Shenandoah Energy Inc | Denver, CO 80265-1050 | Oil & Gas Operator | Dec 2014 |
| 1061 | Shenandoah Oil Corporation | | Oil & Gas Operator | Jun 1979 |
| 1062 | Shenandoah Oil, Inc. (I) | Midland, TX 79710 | Oil & Gas Operator | Apr 1996 |
| 1063 | Shenandoah Petroleum Corporation | Midland, TX 79705 | Oil & Gas Operator | Dec 2025 |
| 1064 | Shenandoah Resources LLC | Houston, TX 77086 | Oil & Gas Operator | Apr 2020 |
| 1065 | Sheneeda Energy, LLC | O Brien, TX 79539 | Oil Operator | Jun 2025 |
| 1066 | Shepard James | Beggs, OK 74421 | Oil & Gas Operator | Feb 2024 |
| 1067 | Shepler & Thomas | | Oil & Gas Operator | Oct 1992 |
| 1068 | Shepler & Thomas, Inc. | Edmond, OK 73013 | Oil & Gas Operator | Sep 2025 |
| 1069 | Shepperd, William M. | Houston, TX 77279 | Oil & Gas Operator | Sep 2012 |
| 1070 | Sher-Lon Corpora | | Oil Operator | Apr 1994 |
| 1071 | Sheri-Di Product | | Oil Operator | Apr 1994 |
| 1072 | Sheridan Energy,Inc. | Houston, TX 77002 | Oil & Gas Operator | Feb 2000 |
| 1073 | Sheridan Production Co III, LLC | Houston, TX 77056 | Oil & Gas Operator | Dec 2025 |
| 1074 | Sheridan Production Company, LLC | Houston, TX 77056 | Oil & Gas Operator | Oct 2025 |
| 1075 | Sherley, O. C. | Megargel, TX 76370 | Oil & Gas Operator | Aug 2003 |
| 1076 | Sherman F Wagenseller | Denver, CO 80210 | Gas Operator | Apr 2016 |
| 1077 | Sherman Havens | | Oil & Gas Operator | Oct 2025 |
| 1078 | Sherman Larry Oil Company | Chandler, OK 74834 | Oil & Gas Operator | Mar 2015 |
| 1079 | Sherman Michael | Canton, OH 44735 | Oil & Gas Operator | Dec 2007 |
| 1080 | Sherman Oil & Gas Co Inc | Chandler, OK 74834-0571 | Oil & Gas Operator | Apr 2020 |
| 1081 | Sherman Oil & Gas, L.L.C. | Chandler, OK 74834 | Oil & Gas Operator | Nov 2025 |
| 1082 | Sherman Oil Company LLC | Wichita Falls, TX 76308 | Oil Operator | Apr 2025 |
| 1083 | Sherman, L. B. | Early, TX 76803 | Oil & Gas Operator | Jun 1998 |
| 1084 | Sherred Homer G And Fleeharty Willie W | | Oil & Gas Operator | Jun 1991 |
| 1085 | Sherrill Bob G | Tulsa, OK 74103 | Oil & Gas Operator | Jul 2015 |
| 1086 | Sherry'S Oil Company | Terral, OK 73569 | Oil Operator | Oct 2000 |
| 1087 | Shertzer Charles F | Kilgore, TX 75662 | Oil Operator | Nov 2005 |
| 1088 | Shewey, C. F., Agent | | Oil & Gas Operator | Dec 2008 |
| 1089 | Shideler Enterprises Inc | Drumright, OK 74030 | Oil & Gas Operator | Feb 2019 |
| 1090 | Shideler, Dean | | Oil & Gas Operator | Dec 1997 |
| 1091 | Shidler Well Service | Vinita, OK 74301-5468 | Oil Operator | Dec 2000 |
| 1092 | Shidler, Mark L., Inc. | Houston, TX 77055 | Oil & Gas Operator | Dec 2025 |
| 1093 | Shield Energy Resources, LLC | | Oil Operator | Dec 2024 |
| 1094 | Shield Operating Co. | Georgetown, TX 78627 | Oil & Gas Operator | Aug 2003 |
| 1095 | Shield Petroleum | College Sta, TX 77845 | Oil & Gas Operator | Dec 2025 |
| 1096 | Shield Resources Inc | | Oil & Gas Operator | Nov 1987 |
| 1097 | Shields Cooper | Bonita Springs, FL 34135-3421 | Oil & Gas Operator | Jan 2011 |
| 1098 | Shields Energy Inc | Fort Smith, AR 72901-4607 | Oil & Gas Operator | Oct 2025 |
| 1099 | Shields Oil Prod | | Oil & Gas Operator | Aug 1995 |
| 1100 | Shields Oil Producers Inc. | Russell, KS 67665 | Oil Operator | Sep 2025 |