| 1101 | Shore Oil Company | | Oil & Gas Operator | May 1998 |
| 1102 | Shore Petroleum Corp. | Corpus Christ, TX 78401 | Oil & Gas Operator | Sep 2026 |
| 1103 | Shore Production Co. | Longview, TX 75604 | Oil & Gas Operator | Aug 2005 |
| 1104 | Shoreham Oil & Gas Company, Inc. | Katy, TX 77492 | Oil & Gas Operator | Sep 2026 |
| 1105 | Shoreline Energy Partners, LLC | Chandler, AZ 85249 | Oil Operator | May 2011 |
| 1106 | Shoreline Exploration Of Texas | | Oil & Gas Operator | Oct 2000 |
| 1107 | Shoreline Exploration, Inc. | | Oil & Gas Operator | Jul 1990 |
| 1108 | Shoreline GP LLC | | Oil & Gas Operator | Jun 2012 |
| 1109 | Shoreline Offshore LLC | | Oil & Gas Operator | Jun 2017 |
| 1110 | Shoreline Oil & Gas Company | Farmington, NM 87402 | Gas Operator | Oct 2019 |
| 1111 | Shoreline Operating LLC | Oklahoma City, OK 73113 | Oil & Gas Operator | Jun 2026 |
| 1112 | Shoreline Petroleum Corp. | Channelview, TX 77530 | Oil & Gas Operator | Sep 2003 |
| 1113 | Shoreline Pipeline Corporation | | Oil Operator | Dec 2020 |
| 1114 | Shoreline Production Serv., Inc. | Rockport, TX 78381 | Oil & Gas Operator | Apr 2002 |
| 1115 | Shoreline Southeast LLC | | Oil & Gas Operator | Jun 2017 |
| 1116 | Shorewood Farms | Lakeview, NY 14085 | Gas Operator | Dec 2025 |
| 1117 | Short Oil Co. | Luling, TX 78648 | Oil & Gas Operator | Jun 2026 |
| 1118 | Short W D Oil Co | | Oil Operator | Mar 1996 |
| 1119 | Short W D Oil Company LLC | Oxford, KS 67119-0729 | Oil Operator | Jun 2026 |
| 1120 | Short W D Revocable Trust | Oxford, KS 67119-0729 | Oil & Gas Operator | Mar 2015 |
| 1121 | Short, Dan | | Oil Operator | Dec 1963 |
| 1122 | Shortgrass Petroleum Inc | Follett, TX 79034 | Oil & Gas Operator | Jun 2026 |
| 1123 | Shoshone Oil And Gas Inc | Lindsay, OK 73052-0217 | Oil & Gas Operator | Jan 2020 |
| 1124 | Shoshone Oil Company | Dallas, TX 75244 | Oil & Gas Operator | May 1994 |
| 1125 | Shoshone Oil Corp. | | Oil & Gas Operator | Dec 2005 |
| 1126 | Shouse, Micheal C. | Liberty, MO 64068 | Oil & Gas Operator | Jan 1996 |
| 1127 | Showdown Energy Corporation | Dallas, TX 75230 | Oil & Gas Operator | Aug 2003 |
| 1128 | Showdown Operating, Inc. | Dallas, TX 75230 | Oil & Gas Operator | May 1996 |
| 1129 | Showhorn Holding Co., L.L.C. | Normangee, TX 77871 | Oil & Gas Operator | Sep 2026 |
| 1130 | Shrider W E Co | Newark, OH 43055 | Oil & Gas Operator | Dec 1991 |
| 1131 | Shriver Earl J | Lawton, OK 73507-5851 | Oil & Gas Operator | Aug 2013 |
| 1132 | Shriver Operating LLC | Lawton, OK 73507-5851 | Oil & Gas Operator | Apr 2026 |
| 1133 | SHS Operating Company | Shreveport, LA 71149 | Oil & Gas Operator | Jan 2025 |
| 1134 | Shubuta Oil Corporation | Houston, TX 77056 | Oil & Gas Operator | Sep 1998 |
| 1135 | Shufflin Energy | | Oil & Gas Operator | Sep 2011 |
| 1136 | Shuler Drilling Co., Inc. | El Dorado, AR 71730 | Oil & Gas Operator | Jan 2025 |
| 1137 | Shultz, Melvin W. | Parsons, KS 67357 | Oil Operator | Nov 1995 |
| 1138 | Shultz, Todd W. | Limestone, NY 14753 | Oil & Gas Operator | Dec 2025 |
| 1139 | Shumate, Jess | Brookesmith, TX 76827 | Oil Operator | Jun 2006 |
| 1140 | Shuteston Oil & Gas | | Oil & Gas Operator | Sep 1997 |
| 1141 | SHWJ Oil & Gas Co., Inc. | Oil City, LA 71061 | Oil Operator | Sep 2026 |
| 1142 | Siana Oil & Gas | Conroe, TX 77305 | Oil & Gas Operator | Sep 2026 |
| 1143 | Siana Oil & Gas., L.L.C | | Oil & Gas Operator | Dec 2021 |
| 1144 | Siana Operating LLC | Conroe, TX 77305224 | Oil & Gas Operator | May 2017 |
| 1145 | Sicko Jaquetta Len | Muldoon, TX 78949 | Oil Operator | May 2026 |
| 1146 | Sideline Oil & Gas, L.P. | Friendswood, TX 77549 | Oil Operator | Sep 2026 |
| 1147 | Sidney E. Pinkston, Jr, Trustee | | Oil & Gas Operator | Apr 1980 |
| 1148 | Sidney Lanier | Midland, TX BADADDR | Oil & Gas Operator | Jan 1996 |
| 1149 | Sidwell Oil & Ga | | Oil & Gas Operator | May 1993 |
| 1150 | Sidwell Oil & Gas, Inc. | Amarillo, TX 79105 | Oil & Gas Operator | Sep 2014 |
| 1151 | Sidwell Operating Company, L.P. | Amarillo, TX 79105 | Oil & Gas Operator | Sep 2026 |
| 1152 | Sidwell Theodore R Jr | Thornville, OH 43076 | Oil & Gas Operator | Dec 1988 |
| 1153 | Sieg Energy, Inc. | Ottawa, KS 66067 | Oil Operator | Nov 2025 |
| 1154 | Siegfried R H In | | Oil Operator | Apr 1985 |
| 1155 | Siegfried R H Inc | Tulsa, OK 74104 | Oil & Gas Operator | Mar 2008 |
| 1156 | Siemsen Operating, LLC | Holyrood, KS 67450 | Oil Operator | May 2026 |
| 1157 | Sien Operating Company, LLC | San Antonio, TX 78209 | Oil Operator | May 2023 |
| 1158 | Sierra Blanca Operating Company | Cleburne, TX BADADDR | Oil & Gas Operator | May 1999 |
| 1159 | Sierra Drilling | | Oil Operator | Sep 1988 |
| 1160 | Sierra Exploration Company | San Antonio, TX 78209 | Oil & Gas Operator | Mar 2008 |
| 1161 | Sierra Group, L.L.C. | San Angelo, TX 76904 | Oil & Gas Operator | Jan 2025 |
| 1162 | Sierra Industries, Inc. | | Oil & Gas Operator | Apr 1989 |
| 1163 | Sierra Madre LLC | Greensburg, KS 67054 | Oil & Gas Operator | May 2015 |
| 1164 | Sierra Madre Natural Res., LLC | Dallas, TX 75225 | Oil & Gas Operator | Dec 2016 |
| 1165 | Sierra Madre Oil & Gas, LLC | Midland, TX 79701 | Oil & Gas Operator | Jul 2026 |
| 1166 | Sierra Minerals, Inc. | Rockdale, TX 76567 | Oil & Gas Operator | Sep 2026 |
| 1167 | Sierra Oil Company | Fort Worth, TX 76106 | Oil & Gas Operator | Sep 2026 |
| 1168 | Sierra Petroleum | | Oil & Gas Operator | Sep 1986 |
| 1169 | Sierra Production Company | | Oil & Gas Operator | May 1986 |
| 1170 | Sierra Reserve Company | | Oil Operator | Dec 1985 |
| 1171 | Sierra Resources, Inc. | Oklahoma City, OK 73142 | Oil & Gas Operator | Jul 2026 |
| 1172 | Sierra Resources, LLC | Houston, TX 77219 | Oil & Gas Operator | Aug 2021 |
| 1173 | Sierra Trading Corporation | | Oil & Gas Operator | Sep 1978 |
| 1174 | Siete Oil And Gas Corporation | Midland, TX 79702 | Oil & Gas Operator | Aug 2003 |
| 1175 | Sigma Corporation | Charleston, WV 253012644 | Gas Operator | Dec 2021 |
| 1176 | Sigma Energy & Explor., Co LLC | Ozona, TX 76943 | Oil & Gas Operator | Feb 2010 |
| 1177 | Sigma Energy, LLC | | Oil Operator | Jan 2025 |
| 1178 | Sigma Exploration Corp., The | Dallas, TX 75230 | Oil & Gas Operator | Sep 1998 |
| 1179 | Sigma Oper & Develop Co., Inc. | Midland, TX 79701 | Oil & Gas Operator | Sep 2026 |
| 1180 | Sigmon Production Company, Inc. | Longview, TX 75608 | Oil & Gas Operator | Dec 2013 |
| 1181 | Signal Hill Company LLC | Cody, WY 82414 | Oil & Gas Operator | Dec 2024 |
| 1182 | Signal Hill Expl & Pet Inc | Duncan, OK 73533 | Oil & Gas Operator | Mar 2015 |
| 1183 | Signal Hill Operating LLC | | Oil & Gas Operator | Jul 2026 |
| 1184 | Signal Hill Petroleum Inc. | | Oil & Gas Operator | Jul 2026 |
| 1185 | Signal Oil And Gas Company | Colleyville, TX 76034 | Oil & Gas Operator | Sep 2026 |
| 1186 | Signal Oil Company, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Sep 2026 |
| 1187 | Signal Operating L.L.C. | | Oil Operator | Jan 2025 |
| 1188 | Signal Petroleum | | Oil & Gas Operator | Jul 1980 |
| 1189 | Signal, LLC | | Oil & Gas Operator | Jun 2026 |
| 1190 | Signal, LLC Of Mississippi | | Oil & Gas Operator | Dec 2024 |
| 1191 | Signature Exploration Inc. | Shawnee, OK 74804-4130 | Oil & Gas Operator | Mar 2015 |
| 1192 | Sikes Oil Company Inc | Velma, OK 73091-0759 | Oil & Gas Operator | Jan 2014 |
| 1193 | Sikes Operating, Inc. | Tyler, TX 75711 | Oil & Gas Operator | Jun 2003 |
| 1194 | Sikes, Arlas M. | Brownwood, TX 76801 | Oil & Gas Operator | May 2000 |
| 1195 | Silberman A & M Oil | Oklahoma City, OK 73122-3096 | Oil & Gas Operator | Apr 2014 |
| 1196 | Silent Stone Energy LLC | | Oil & Gas Operator | Jun 2026 |
| 1197 | Silhan, Terry | Marion, KS 66861 | Oil & Gas Operator | Dec 2009 |
| 1198 | Silleman, Drew C. | Cattaraugus, NY 14719 | Gas Operator | Dec 2025 |
| 1199 | Siltstone Resources Op II, LLC | Wilmington, DE 19801 | Oil & Gas Operator | Sep 2026 |
| 1200 | Silvco Energy, LLC | | Oil Operator | Apr 2014 |