| 4101 | STEP SCALE | Hot Springs County, WY | Oil & Gas Property | Mar 2025 |
| 4102 | STEPANEK | Johnson County, WY | Gas Property | Feb 2025 |
| 4103 | STEPSCALE 49-T-P | Hot Springs County, WY | Oil & Gas Property | Mar 2025 |
| 4104 | STEVENS | Campbell County, WY | Gas Property | Apr 2012 |
| 4105 | STEVENSON | Crook County, WY | Oil & Gas Property | Oct 1994 |
| 4106 | STEVENSON 0409 | Campbell County, WY | Oil & Gas Property | Mar 2025 |
| 4107 | STEWART | Crook County, WY | Oil Property | Mar 2013 |
| 4108 | STEWART | Campbell County, WY | Oil & Gas Property | Mar 2025 |
| 4109 | STEWART POINT | Sublette County, WY | Oil & Gas Property | Mar 2025 |
| 4110 | STIG FED 4271-32 | Campbell County, WY | Oil & Gas Property | Mar 2025 |
| 4111 | STIMSON 3568-0211-1TH | Converse County, WY | Oil & Gas Property | Mar 2025 |
| 4112 | STINGRAY 1-11/12H | Laramie County, WY | Oil & Gas Property | Mar 2025 |
| 4113 | STIP SCALE 23 | Hot Springs County, WY | Oil & Gas Property | Mar 2025 |
| 4114 | STIRLING | Weston County, WY | Oil & Gas Property | Mar 2025 |
| 4115 | STOCK | Campbell County, WY | Gas Property | Jan 2008 |
| 4116 | STOCKMANS B | Campbell County, WY | Oil & Gas Property | Jan 1994 |
| 4117 | STOCKYARDS | Crook County, WY | Oil Property | Mar 2025 |
| 4118 | STODDARD | Weston County, WY | Oil & Gas Property | Mar 2025 |
| 4119 | STODDARD | Campbell County, WY | Oil & Gas Property | Mar 2025 |
| 4120 | STODDARD 40-71 36 A | Converse County, WY | Oil & Gas Property | Mar 2025 |
| 4121 | STONE CABIN | Natrona County, WY | Oil & Gas Property | Mar 2025 |
| 4122 | STONE GATE | Campbell County, WY | Gas Property | Nov 2013 |
| 4123 | STONEGATE | Campbell County, WY | Gas Property | Nov 2012 |
| 4124 | STONEPILE | Campbell County, WY | Gas Property | Mar 2012 |
| 4125 | STONES THROW | Campbell County, WY | Gas Property | Jun 2015 |
| 4126 | STORE DRAW CS | Campbell County, WY | Gas Property | Aug 2018 |
| 4127 | STORM SHELTER | Sweetwater County, WY | Oil & Gas Property | Mar 2025 |
| 4128 | STORMY FED 4371-27 | Campbell County, WY | Oil & Gas Property | Mar 2025 |
| 4129 | STOVALL | Natrona County, WY | Oil & Gas Property | Mar 2025 |
| 4130 | STRAGG DRAW | Campbell County, WY | Oil Property | Mar 2025 |
| 4131 | STRANAHAN | Johnson County, WY | Gas Property | Feb 2025 |
| 4132 | STRANGE | Sweetwater County, WY | Oil & Gas Property | Mar 2025 |
| 4133 | STRANGLER FED COM 1H | Campbell County, WY | Oil & Gas Property | Mar 2025 |
| 4134 | STREETER | Johnson County, WY | Gas Property | Feb 2016 |
| 4135 | STREETER | Johnson County, WY | Oil & Gas Property | Dec 1993 |
| 4136 | STREETER FED | Johnson County, WY | Gas Property | Nov 2015 |
| 4137 | STRICKLING | Weston County, WY | Oil & Gas Property | Aug 2024 |
| 4138 | STRIKE | Sweetwater County, WY | Oil & Gas Property | Mar 2025 |
| 4139 | STRIPE CS FED | Campbell County, WY | Gas Property | Feb 2012 |
| 4140 | STROCK FEDERAL 33-72 23-1H | Converse County, WY | Oil & Gas Property | Mar 2025 |
| 4141 | STUART | Campbell County, WY | Gas Property | Aug 2011 |
| 4142 | STUART | Campbell County, WY | Oil & Gas Property | Mar 2025 |
| 4143 | STUART | Campbell County, WY | Oil & Gas Property | Mar 2025 |
| 4144 | STUART FEDERAL | Campbell County, WY | Gas Property | Jun 2012 |
| 4145 | STUART FEDERAL | Campbell County, WY | Gas Property | Jul 2011 |
| 4146 | STUART-FEDERAL | Campbell County, WY | Gas Property | Jan 2010 |
| 4147 | STUD HORSE | Sublette County, WY | Oil & Gas Property | Mar 2025 |
| 4148 | STUD HORSE BUTTE | Sublette County, WY | Oil & Gas Property | Mar 2025 |
| 4149 | STUDHORSE BUTTE RAIN 311-04-500H | Sublette County, WY | Oil & Gas Property | Mar 2025 |
| 4150 | SUCHAN | Campbell County, WY | Oil & Gas Property | Mar 2025 |
| 4151 | SUEDKAMP | Campbell County, WY | Gas Property | May 2012 |
| 4152 | SUGAR LOAF | Sublette County, WY | Oil & Gas Property | Nov 2021 |
| 4153 | SUGARLOAF | Sweetwater County, WY | Oil & Gas Property | Aug 2017 |
| 4154 | SUKEY CS STATE | Johnson County, WY | Gas Property | Apr 2014 |
| 4155 | SULTANA 23-62 23-14 | Goshen County, WY | Oil & Gas Property | Apr 2025 |
| 4156 | SUMMERFIELD | Campbell County, WY | Oil & Gas Property | Dec 2022 |
| 4157 | SUN DOG UNIT | Carbon County, WY | Gas Property | Feb 2025 |
| 4158 | SUN DOG UNIT 1691 | Carbon County, WY | Gas Property | Dec 2016 |
| 4159 | SUN RANCH | Natrona County, WY | Oil & Gas Property | Feb 2025 |
| 4160 | SUNDQUIST 9-34-71 USA A | Converse County, WY | Oil & Gas Property | Mar 2025 |
| 4161 | SUNDQUIST FLATS | Converse County, WY | Oil & Gas Property | Sep 1981 |
| 4162 | SUNDQUIST FLATS UNIT 34-72 1 | Converse County, WY | Oil & Gas Property | Mar 2025 |
| 4163 | SUNLIGHT 41-20 1H | Laramie County, WY | Oil & Gas Property | Mar 2025 |
| 4164 | SUNRISE CS FED | Campbell County, WY | Gas Property | Sep 2014 |
| 4165 | SUNRISE FED | Campbell County, WY | Oil & Gas Property | Mar 2025 |
| 4166 | SUPER BEE | Laramie County, WY | Oil & Gas Property | Mar 2025 |
| 4167 | SUPERHORNET | Campbell County, WY | Oil Property | Apr 2010 |
| 4168 | SUPERIOR | Campbell County, WY | Oil Property | Jan 1990 |
| 4169 | SURANYI | Sheridan County, WY | Gas Property | May 2012 |
| 4170 | SUSSEX | Johnson County, WY | Oil & Gas Property | Nov 2024 |
| 4171 | SUSSEX UNIT | Johnson County, WY | Oil & Gas Property | Apr 1986 |
| 4172 | SUSSEX WEST | Johnson County, WY | Oil & Gas Property | Mar 2025 |
| 4173 | SUSSEX WEST UNIT | Johnson County, WY | Oil Property | Oct 1986 |
| 4174 | SVALINA | Campbell County, WY | Oil & Gas Property | Apr 2010 |
| 4175 | SVALINA FED 14-17 | Campbell County, WY | Oil Property | Mar 2025 |
| 4176 | SWAN SOUTH | Sweetwater County, WY | Oil & Gas Property | Mar 2025 |
| 4177 | SWANSON | Campbell County, WY | Gas Property | Jan 2007 |
| 4178 | SWANSONG | Campbell County, WY | Gas Property | Nov 2013 |
| 4179 | SWINGHOLM FEDERAL | Campbell County, WY | Gas Property | Dec 2011 |
| 4180 | SWINYER 1 | Sheridan County, WY | Gas Property | Mar 2014 |
| 4181 | SYMONS | Sheridan County, WY | Gas Property | Mar 2014 |
| 4182 | T CHAIR | Campbell County, WY | Oil & Gas Property | Mar 2025 |
| 4183 | T COSNER | Campbell County, WY | Oil & Gas Property | Mar 2025 |
| 4184 | T DUNNE | Fremont County, WY | Oil Property | Apr 2025 |
| 4185 | T SONNERS | Park County, WY | Oil & Gas Property | Mar 2025 |
| 4186 | T-55 FED 3 | Converse County, WY | Oil & Gas Property | Mar 2025 |
| 4187 | T-C RANCH 2S | Campbell County, WY | Gas Property | Feb 2025 |
| 4188 | T-CHAIR | Campbell County, WY | Gas Property | Feb 2025 |
| 4189 | T-CHAIR | Campbell County, WY | Gas Property | May 2015 |
| 4190 | TABLE 15-33-68 USA A | Converse County, WY | Oil & Gas Property | Mar 2025 |
| 4191 | TABLE MOUNTAIN UNIT | Johnson County, WY | Oil & Gas Property | Apr 2025 |
| 4192 | TABLE ROCK | Sweetwater County, WY | Oil & Gas Property | Mar 2025 |
| 4193 | TAGGART | Park County, WY | Oil & Gas Property | Sep 2019 |
| 4194 | TALISMAN | Campbell County, WY | Gas Property | Feb 2025 |
| 4195 | TALISMAN CS FED | Johnson County, WY | Gas Property | Dec 2019 |
| 4196 | TALLOW | Laramie County, WY | Oil & Gas Property | Mar 2025 |
| 4197 | TALLOW 3119 | Laramie County, WY | Oil & Gas Property | Mar 2025 |
| 4198 | TALMADGE | Laramie County, WY | Oil & Gas Property | Mar 2025 |
| 4199 | TALON FED 4271-1 | Campbell County, WY | Oil & Gas Property | Mar 2025 |
| 4200 | TALON UNIT | Fremont County, WY | Oil & Gas Property | Nov 2024 |