| 1201 | EAST J-2 | Laramie County, WY | Oil & Gas Property | Feb 1990 |
| 1202 | EAST KUEHNE RANCH | Campbell County, WY | Oil & Gas Property | Mar 2025 |
| 1203 | EAST LABARGE | Lincoln County, WY | Oil & Gas Property | Mar 2025 |
| 1204 | EAST SALT CREEK | Natrona County, WY | Oil & Gas Property | Mar 2025 |
| 1205 | EAST SQUAW | Campbell County, WY | Gas Property | Sep 2010 |
| 1206 | EAST STEAD CANYON | Lincoln County, WY | Oil & Gas Property | Mar 2025 |
| 1207 | EAST TEAPOT | Natrona County, WY | Oil Property | Mar 2009 |
| 1208 | EAST TRUMPETER | Sweetwater County, WY | Oil & Gas Property | Mar 2025 |
| 1209 | EASTWOOD BCR DARTH V 11-7 37-72MH | Converse County, WY | Oil & Gas Property | Mar 2025 |
| 1210 | EASY STREET | Carbon County, WY | Oil & Gas Property | Mar 2025 |
| 1211 | EATHERTON | Crook County, WY | Oil Property | Mar 2025 |
| 1212 | EATON | Campbell County, WY | Gas Property | May 2016 |
| 1213 | EBERSPECHER | Converse County, WY | Oil & Gas Property | Feb 1993 |
| 1214 | EBMD | Park County, WY | Oil & Gas Property | Mar 2025 |
| 1215 | ECHETA ROAD CS STATE | Campbell County, WY | Gas Property | Jun 2016 |
| 1216 | ECHETA UNIT | Campbell County, WY | Gas Property | May 2016 |
| 1217 | ECHINUS FED 3471-1 | Converse County, WY | Oil & Gas Property | Mar 2025 |
| 1218 | ECHO | Campbell County, WY | Gas Property | Jan 2009 |
| 1219 | ECHO NORTH STATE 16 | Sweetwater County, WY | Oil & Gas Property | Mar 2025 |
| 1220 | ECHO SPR | Carbon County, WY | Oil & Gas Property | Mar 2025 |
| 1221 | ECHO SPRINGS | Carbon County, WY | Oil & Gas Property | Mar 2025 |
| 1222 | ECHO SPRINGS | Carbon County, WY | Oil & Gas Property | Feb 2025 |
| 1223 | EDISTO CS FED | Johnson County, WY | Gas Property | May 2023 |
| 1224 | EDITH STATE | Carbon County, WY | Oil & Gas Property | Mar 2025 |
| 1225 | EDRA C | Campbell County, WY | Oil & Gas Property | Jan 2025 |
| 1226 | EDSEL | Crook County, WY | Oil & Gas Property | Sep 2020 |
| 1227 | EDWARDS | Campbell County, WY | Oil & Gas Property | Jun 2014 |
| 1228 | EDWARDS | Campbell County, WY | Oil & Gas Property | Nov 2021 |
| 1229 | EDWARDS | Campbell County, WY | Gas Property | Jan 2008 |
| 1230 | EE SESSIONS | Big Horn County, WY | Oil & Gas Property | Mar 2025 |
| 1231 | EFCU | Weston County, WY | Oil & Gas Property | Mar 2025 |
| 1232 | EGERT | Weston County, WY | Oil Property | Jan 2015 |
| 1233 | EH FED CONTINUUM | Converse County, WY | Oil & Gas Property | Mar 2025 |
| 1234 | EH FED FUSION | Converse County, WY | Oil & Gas Property | Mar 2025 |
| 1235 | EH FED GALAXY | Converse County, WY | Oil & Gas Property | Mar 2025 |
| 1236 | EH FED RADLER 3469-12-T4XH | Converse County, WY | Oil & Gas Property | Mar 2025 |
| 1237 | EH FED SPACE | Converse County, WY | Oil & Gas Property | Mar 2025 |
| 1238 | EH FED UNIVERSE | Converse County, WY | Oil & Gas Property | Mar 2025 |
| 1239 | EH FUSION W 3469-12 | Converse County, WY | Oil & Gas Property | Mar 2025 |
| 1240 | EH SPACE | Converse County, WY | Oil & Gas Property | Mar 2025 |
| 1241 | EHRLICH | Hot Springs County, WY | Oil & Gas Property | Mar 2025 |
| 1242 | EHRLICH PATENTED | Hot Springs County, WY | Oil & Gas Property | Mar 2025 |
| 1243 | EIGHTMILE | Carbon County, WY | Oil & Gas Property | Mar 2025 |
| 1244 | EIGHTMILE | Sweetwater County, WY | Oil & Gas Property | Mar 2025 |
| 1245 | EITEL | Crook County, WY | Oil Property | Mar 2025 |
| 1246 | EKLUND 17-63-23 | Laramie County, WY | Oil & Gas Property | Mar 2025 |
| 1247 | ELDRIDGE | Campbell County, WY | Gas Property | Aug 2002 |
| 1248 | ELEANOR | Laramie County, WY | Oil & Gas Property | Mar 2025 |
| 1249 | ELK UNIT C-045194 303 | Park County, WY | Oil & Gas Property | Mar 2025 |
| 1250 | ELK UNIT PATENT 311 | Park County, WY | Oil & Gas Property | Mar 2025 |
| 1251 | ELKHORN | Converse County, WY | Oil Property | Dec 2024 |
| 1252 | ELLA FE | Converse County, WY | Oil & Gas Property | Mar 2025 |
| 1253 | ELLBOGEN | Campbell County, WY | Gas Property | Nov 2007 |
| 1254 | ELLBOGEN 4471-4 | Campbell County, WY | Oil & Gas Property | Mar 2025 |
| 1255 | ELLIOT-LONGHORN | Campbell County, WY | Gas Property | Sep 2013 |
| 1256 | ELLIOTT | Sheridan County, WY | Gas Property | Jan 2012 |
| 1257 | ELLIOTT | Weston County, WY | Oil & Gas Property | Mar 2025 |
| 1258 | ELLIOTT | Campbell County, WY | Oil & Gas Property | Jun 2015 |
| 1259 | ELLIOTT | Niobrara County, WY | Oil & Gas Property | Apr 2025 |
| 1260 | ELLIS | Campbell County, WY | Oil & Gas Property | Mar 2025 |
| 1261 | ELM FEDERAL | Sublette County, WY | Oil & Gas Property | Mar 2025 |
| 1262 | ELMO 21-16-14 | Laramie County, WY | Oil & Gas Property | Mar 2025 |
| 1263 | EMBAR LBB | Park County, WY | Oil & Gas Property | Mar 2013 |
| 1264 | EMBUDO CS FED | Campbell County, WY | Gas Property | Aug 2018 |
| 1265 | EMERALD 1 | Converse County, WY | Oil & Gas Property | Mar 2025 |
| 1266 | EMERALD FED 3467-1819 | Converse County, WY | Oil & Gas Property | Mar 2025 |
| 1267 | EMIGRANT | Lincoln County, WY | Oil & Gas Property | Mar 2025 |
| 1268 | EMIGRANT 4471-0508-1PH | Campbell County, WY | Oil & Gas Property | Mar 2025 |
| 1269 | EMIGRANT SPRINGS U | Lincoln County, WY | Oil & Gas Property | Mar 2025 |
| 1270 | EMILY ROBINSON | Crook County, WY | Oil & Gas Property | Apr 2025 |
| 1271 | EMMETT | Park County, WY | Oil & Gas Property | Mar 2025 |
| 1272 | EMPIRE | Campbell County, WY | Oil & Gas Property | Apr 2025 |
| 1273 | EMPIRE | Campbell County, WY | Oil & Gas Property | Jul 2023 |
| 1274 | EMPIRE STATE | Johnson County, WY | Oil Property | Feb 2025 |
| 1275 | ENCORE USA 2 | Park County, WY | Oil & Gas Property | Mar 2025 |
| 1276 | ENDURANCE | Sweetwater County, WY | Oil & Gas Property | Mar 2025 |
| 1277 | ENGLE | Weston County, WY | Oil Property | Jul 2019 |
| 1278 | ENGLE ARNOLD | Weston County, WY | Oil & Gas Property | Jul 2019 |
| 1279 | ENGLEMAN | Sweetwater County, WY | Oil & Gas Property | Mar 2025 |
| 1280 | ENOS | Fremont County, WY | Oil Property | May 2018 |
| 1281 | EPLER | Laramie County, WY | Oil & Gas Property | Mar 2025 |
| 1282 | EROS | Converse County, WY | Oil & Gas Property | Mar 2025 |
| 1283 | ES 01 | Campbell County, WY | Gas Property | Jul 2015 |
| 1284 | ES 02 | Campbell County, WY | Gas Property | Jun 2015 |
| 1285 | ES 03 | Campbell County, WY | Gas Property | Dec 2011 |
| 1286 | ES 04 | Campbell County, WY | Gas Property | Jun 2015 |
| 1287 | ES 06 | Campbell County, WY | Gas Property | Jul 2015 |
| 1288 | ES 07 | Campbell County, WY | Gas Property | Jun 2015 |
| 1289 | ES 09 | Campbell County, WY | Gas Property | Jul 2015 |
| 1290 | ES 10 | Campbell County, WY | Gas Property | Jul 2015 |
| 1291 | ES 11 | Campbell County, WY | Gas Property | Jun 2015 |
| 1292 | ES 12 | Campbell County, WY | Gas Property | Jul 2015 |
| 1293 | ES 13 | Campbell County, WY | Gas Property | Dec 2011 |
| 1294 | ES 15 | Campbell County, WY | Gas Property | Jul 2015 |
| 1295 | ESPY | Carbon County, WY | Oil & Gas Property | Mar 2025 |
| 1296 | ESTHER FULLER | Fremont County, WY | Oil & Gas Property | Feb 2025 |
| 1297 | ETCHEMENDY | Converse County, WY | Oil & Gas Property | Apr 2025 |
| 1298 | EUROPEAN SWALLOW 1-35 | Converse County, WY | Oil & Gas Property | Mar 2025 |
| 1299 | EVA GUSTAFSON | Campbell County, WY | Gas Property | Dec 2011 |
| 1300 | EVANS | Crook County, WY | Oil & Gas Property | Jan 2024 |