| 1001 | Suemaur Expl. & Prod., LLC | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Apr 2024 |
| 1002 | Suemaur Exploration, Inc. | Corpus Chrsti, TX 78470 | Oil & Gas Operator | Mar 2008 |
| 1003 | Sugar Enterprises, LLC | Tyler, TX 75713 | Oil & Gas Operator | Apr 2024 |
| 1004 | Suits & Jeans, LLC | Pampa, TX 79066 | Oil & Gas Operator | Apr 2024 |
| 1005 | Sukay Oil & Gas, Inc. | Pampa, TX 79066 | Oil & Gas Operator | Aug 2003 |
| 1006 | Sullivan & Co. | Tulsa, OK 74114 | Oil & Gas Operator | May 2022 |
| 1007 | Sullivan - Wells | Amarillo, TX 79101 | Gas Operator | Apr 2024 |
| 1008 | Sullivan, Hollis R. Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Feb 2009 |
| 1009 | Sulphur River Exploration, Inc. | Dallas, TX 75244 | Oil & Gas Operator | Apr 2024 |
| 1010 | Summit Discovery Res II LLC | Houston, TX 77024 | Oil & Gas Operator | Sep 2019 |
| 1011 | Summit Energy, Inc. | Littleton, CO 80127 | Oil & Gas Operator | Aug 2013 |
| 1012 | Summit Exploration, L.L.C. | Tulsa, OK 74119 | Oil & Gas Operator | Mar 2008 |
| 1013 | Summit Overseas Expl., Inc. | Denver, CO 80226 | Oil & Gas Operator | Apr 2007 |
| 1014 | Summit Petroleum LLC | Midland, TX 79701 | Oil & Gas Operator | Apr 2024 |
| 1015 | Summit Resources MGMT., LLC. | Edmond, OK 73083 | Oil & Gas Operator | Apr 2024 |
| 1016 | Summit Resources, Inc. | Houston, TX 77077 | Oil & Gas Operator | Sep 2016 |
| 1017 | Summitt Resources | Corsicana, TX 75110 | Oil & Gas Operator | Apr 2008 |
| 1018 | Sun Exploration, Inc. | Alice, TX 78332 | Oil & Gas Operator | Apr 2024 |
| 1019 | Sun Oil Company | Arlington, TX 76006 | Oil & Gas Operator | Dec 2021 |
| 1020 | Sun Resources Texas, Inc. | Longview, TX 75606 | Oil & Gas Operator | Dec 2023 |
| 1021 | Sun-Key Oil Co., Inc. | Dublin, TX 76446 | Oil & Gas Operator | Apr 2024 |
| 1022 | Sunbelt Salvage | Eastland, TX 76448 | Oil & Gas Operator | Sep 1998 |
| 1023 | Sunburst, Inc. | Wheat Ridge, CO 80033 | Oil & Gas Operator | Feb 2024 |
| 1024 | Suncoast Investments Co., Inc. | Plano, TX 75074 | Oil & Gas Operator | Oct 2001 |
| 1025 | Suncoast Technical Services Inc | Dallas, TX 75251 | Oil & Gas Operator | Apr 2024 |
| 1026 | Sundance Consulting Corp. | Abilene, TX 79605 | Oil & Gas Operator | Apr 2024 |
| 1027 | Sundance Energy Inc | Denver, CO 80202 | Oil & Gas Operator | Jul 2014 |
| 1028 | Sundance Oil & Gas, Inc. | Pampa, TX 79065 | Oil & Gas Operator | Mar 2012 |
| 1029 | Sundance Resources, Inc. | Rio VIsta, TX 76093 | Oil & Gas Operator | Mar 2012 |
| 1030 | Sunday Corporation | Olney, TX 76374 | Oil & Gas Operator | Apr 2024 |
| 1031 | Sundial Resources, Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2024 |
| 1032 | Sundown Energy LP | Dallas, TX 75248 | Oil & Gas Operator | Apr 2024 |
| 1033 | Sundown Energy, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Dec 2023 |
| 1034 | Sunergon Oil Operating, LLC | Gainesville, TX 76240 | Oil Operator | Apr 2024 |
| 1035 | Sunland Production Company, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Feb 2024 |
| 1036 | Sunlight Exploration, Inc. | Canyon, TX 79015 | Oil & Gas Operator | Apr 2024 |
| 1037 | Sunray Energy, Inc. | Round Rock, TX 78683 | Oil & Gas Operator | Nov 2018 |
| 1038 | Sunray Oil Co., Inc. | Pampa, TX 79065 | Oil & Gas Operator | Jan 2013 |
| 1039 | Sunray Operating Company LLC | Sugar Land, TX 77498 | Oil & Gas Operator | Apr 2024 |
| 1040 | Sunray-Taylor, Inc. | Midland, TX 79701 | Oil & Gas Operator | Nov 1993 |
| 1041 | Sunrise Enterprises | Bowie, TX 76230 | Oil & Gas Operator | Dec 2016 |
| 1042 | Sunrise Oil, LTD. | Wichita Falls, TX 76307 | Oil & Gas Operator | Aug 2004 |
| 1043 | Sunset Energy L L C | Palm Harbor, FL 34683-3044 | Oil Operator | Dec 2007 |
| 1044 | Sunset Leases LLC | Ozona, TX 76943 | Oil Operator | Apr 2024 |
| 1045 | Sunstone Energy Company | Tulsa, OK 74153 | Oil & Gas Operator | Aug 2009 |
| 1046 | Sunterra Energy Corporation | Tulsa, OK 74103 | Oil & Gas Operator | Dec 2009 |
| 1047 | Sunwest Oklahoma, Inc | Dallas, TX 75231 | Oil & Gas Operator | May 2023 |
| 1048 | Sunwest Operating Company L.L.C. | Englewood, CO 80155 | Oil & Gas Operator | Aug 2002 |
| 1049 | Suoco Oil Corporation | Pampa, TX 79066 | Oil & Gas Operator | Apr 2024 |
| 1050 | Supa Energy, Inc. | Shamrock, TX 79079 | Oil & Gas Operator | Apr 2024 |
| 1051 | Superior Royalty, LLC | Lindale, TX 75771 | Oil Operator | Apr 2024 |
| 1052 | Supreme Energy Company, Inc. | Abilene, TX 79601 | Oil & Gas Operator | Apr 2024 |
| 1053 | Sure Flow Oil & Gas Company | Victoria, TX 77902 | Oil & Gas Operator | Mar 2008 |
| 1054 | Sure Flow Oil & Gas, Inc. | Victoria, TX 77902 | Oil & Gas Operator | Apr 2024 |
| 1055 | Surge Operating, LLC | Houston, TX 77041 | Oil & Gas Operator | Apr 2024 |
| 1056 | Surge Solutions, Inc. | Iraan, TX 79744 | Oil Operator | Apr 2024 |
| 1057 | Susanna Corporation | Breckenridge, TX 76424 | Oil & Gas Operator | Apr 2024 |
| 1058 | Sutherland Energy Co., LLC | Bridgeport, TX 76426 | Oil & Gas Operator | Apr 2024 |
| 1059 | Sutterfield-Tisdale-Payne, Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Jun 1998 |
| 1060 | Sutton Oil Co. | Austin, TX 78728 | Oil & Gas Operator | Apr 2024 |
| 1061 | Sutton Producing Corp. | San Antonio, TX 78270 | Oil & Gas Operator | Apr 2024 |
| 1062 | Sutton, John E. | Toledo, OH 43616 | Oil & Gas Operator | Apr 2024 |
| 1063 | Sutton, Robert E., Inc. | Odessa, TX 79760 | Oil & Gas Operator | Mar 1997 |
| 1064 | SV Energy Company, LLC | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Mar 2017 |
| 1065 | Sven Permian, LLC | Houston, TX 77057 | Oil & Gas Operator | Apr 2024 |
| 1066 | SW Operating, Inc. | Kilgore, TX 75662 | Oil & Gas Operator | Sep 2000 |
| 1067 | Swab Oil Co. | Midland, TX 79701 | Oil & Gas Operator | Apr 2024 |
| 1068 | Swan PC, LP | Jacksboro, TX 76458 | Oil & Gas Operator | Apr 2024 |
| 1069 | Swan Production Co. | Jacksboro, TX 76458 | Oil & Gas Operator | Nov 2009 |
| 1070 | Swanner Properties | Wichita Falls, TX 76309 | Oil & Gas Operator | Apr 2024 |
| 1071 | Swanson & Vestal | Electra, TX 76360 | Oil & Gas Operator | Oct 1997 |
| 1072 | Swanson Operating, Inc. | Holliday, TX 76366 | Oil Operator | Apr 2024 |
| 1073 | Swanson, Tom | Electra, TX 76360 | Oil & Gas Operator | Oct 2004 |
| 1074 | Swanson, Tommy Oil Co. | Electra, TX 76360 | Oil & Gas Operator | Mar 2017 |
| 1075 | Swaringin, Howard Operating | Maryneal, TX 79535 | Oil & Gas Operator | May 2003 |
| 1076 | Swartz Oil Company | San Angelo, TX 76906 | Oil & Gas Operator | Apr 2024 |
| 1077 | Swartz, Guy A. | San Angelo, TX 76904 | Oil & Gas Operator | Aug 1993 |
| 1078 | Sweet Crude Operating LLC | Brenham, TX 77834 | Oil & Gas Operator | Apr 2024 |
| 1079 | Sweet Texas T Energy LLC | Clyde, TX 79510 | Oil Operator | Apr 2024 |
| 1080 | Sweetwater Drilling Co., Inc. | Fort Worth, TX 76116 | Oil & Gas Operator | Apr 2024 |
| 1081 | Sweetwater Production, Inc. | San Angelo, TX 76906 | Oil & Gas Operator | Apr 2024 |
| 1082 | Swenson Backhoe Service, Inc. | Electra, TX 76360 | Oil Operator | Apr 2024 |
| 1083 | Swenson, Clifford E. | Henrietta, TX 76365 | Oil & Gas Operator | Apr 2024 |
| 1084 | Swepi LP | Houston, TX 77079 | Oil & Gas Operator | Jul 2020 |
| 1085 | Swiess & Thomas | San Antonio, TX 78247 | Oil Operator | Apr 2024 |
| 1086 | Swift Energy Company | Houston, TX 77060 | Oil & Gas Operator | Mar 2021 |
| 1087 | Swift Energy Operating, LLC | Houston, TX 77079 | Oil & Gas Operator | Jun 2017 |
| 1088 | SWJN Oil Company | Kilgore, TX 75663 | Oil Operator | Apr 2024 |
| 1089 | SWN Production Company, LLC | Spring, TX 77391 | Oil & Gas Operator | Jan 2024 |
| 1090 | Swope Corp. | Austin, TX 78735 | Oil & Gas Operator | Apr 2024 |
| 1091 | SWS | Humble, TX 77338 | Oil Operator | Apr 2024 |
| 1092 | Sydri Operating, LLC | Dallas, TX 75231 | Oil & Gas Operator | Apr 2024 |
| 1093 | Sydson Energy, Inc. | Houston, TX 77027 | Oil & Gas Operator | Apr 2024 |
| 1094 | Syj Oil & Gas | San Antonio, TX 78209 | Oil Operator | Sep 2000 |
| 1095 | Syj Oil & Gas, Inc. | San Antonio, TX 78209 | Oil & Gas Operator | Apr 2024 |
| 1096 | Sylvan Energy, LLC | Pittsburgh, PA 15211 | Oil & Gas Operator | Apr 2024 |
| 1097 | Symank, Steve | Olney, TX 76374 | Oil & Gas Operator | Apr 2024 |
| 1098 | Symba American Oil, Inc | Houston, TX 77056 | Oil Operator | Apr 2024 |
| 1099 | Synergex Inc | Oklahoma City, OK 73134 | Oil & Gas Operator | Dec 2023 |
| 1100 | Synergy Oil & Gas, Inc. (A) | Houston, TX 77024 | Oil & Gas Operator | Aug 2001 |