| 101 | REVLAND | Campbell County, WY | Gas Property | May 2006 |
| 102 | REVLAND FED TRUST | Campbell County, WY | Gas Property | Aug 2009 |
| 103 | REX FED 3571-21 | Converse County, WY | Oil & Gas Property | Apr 2025 |
| 104 | REX STATE 3571-21-16 | Converse County, WY | Oil & Gas Property | Apr 2025 |
| 105 | REYNARD UNIT | Lincoln County, WY | Oil & Gas Property | Apr 2025 |
| 106 | REYNOLDS | Crook County, WY | Oil & Gas Property | Dec 2024 |
| 107 | REYNOLDS | Converse County, WY | Oil & Gas Property | Nov 2024 |
| 108 | REYNOLDS | Converse County, WY | Oil & Gas Property | Apr 2025 |
| 109 | REYNOLDS | Campbell County, WY | Gas Property | Nov 2012 |
| 110 | REYNOLDS CS | Campbell County, WY | Gas Property | Feb 2018 |
| 111 | RFD FEE | Weston County, WY | Oil Property | Jul 1991 |
| 112 | RFD GOVT | Weston County, WY | Oil & Gas Property | Nov 2019 |
| 113 | RHEETI | Laramie County, WY | Oil & Gas Property | Apr 2025 |
| 114 | RHINE 3625 | Campbell County, WY | Oil & Gas Property | Apr 2025 |
| 115 | RICE & SONS | Sheridan County, WY | Gas Property | May 2012 |
| 116 | RICH | Sweetwater County, WY | Oil & Gas Property | Apr 2025 |
| 117 | RICH | Campbell County, WY | Oil Property | Feb 2022 |
| 118 | RICHARDSON | Sweetwater County, WY | Oil & Gas Property | Feb 2025 |
| 119 | RIDE FED 3670-28 | Converse County, WY | Oil & Gas Property | Apr 2025 |
| 120 | RIDENOUR | Campbell County, WY | Oil & Gas Property | Apr 2025 |
| 121 | RIDGE POINT | Lincoln County, WY | Oil & Gas Property | Apr 2025 |
| 122 | RIDGELY | Hot Springs County, WY | Oil & Gas Property | Apr 2025 |
| 123 | RIDGERUNNER CS FED | Campbell County, WY | Gas Property | Apr 2010 |
| 124 | RIDGLEY | Hot Springs County, WY | Oil & Gas Property | May 2023 |
| 125 | RIEHLE | Converse County, WY | Oil & Gas Property | Apr 2025 |
| 126 | RIEHLE | Converse County, WY | Oil & Gas Property | Oct 2004 |
| 127 | RILEY RIDGE | Sublette County, WY | Oil & Gas Property | Jul 2014 |
| 128 | RIMROCK | Laramie County, WY | Oil & Gas Property | Apr 2025 |
| 129 | RINCON 11-2 | Laramie County, WY | Oil & Gas Property | Apr 2025 |
| 130 | RINGER 4470-0409-1TH | Campbell County, WY | Oil & Gas Property | Apr 2025 |
| 131 | RIPS 4471-0 | Campbell County, WY | Oil & Gas Property | Apr 2025 |
| 132 | RITCHIE 56-77 | Sheridan County, WY | Gas Property | Jun 2015 |
| 133 | RITCHIE FED 3671-12 | Converse County, WY | Oil & Gas Property | Apr 2025 |
| 134 | RITTHALER | Weston County, WY | Oil Property | May 2009 |
| 135 | RIVERBEND | Campbell County, WY | Gas Property | Nov 2014 |
| 136 | RIVERSIDE | Sublette County, WY | Oil & Gas Property | Apr 2025 |
| 137 | RIVERTON | Fremont County, WY | Oil & Gas Property | Apr 2025 |
| 138 | RM OREGON FEDERAL 24-12 43-77BH | Johnson County, WY | Oil & Gas Property | Apr 2025 |
| 139 | RM WASHINGTON FEE 14-1 43-77H | Johnson County, WY | Oil & Gas Property | Apr 2025 |
| 140 | RMMC | Campbell County, WY | Gas Property | Jul 2003 |
| 141 | RMSU | Campbell County, WY | Oil & Gas Property | Feb 2025 |
| 142 | ROAD HOLLOW | Lincoln County, WY | Oil & Gas Property | Mar 2025 |
| 143 | ROBBERS | Carbon County, WY | Oil & Gas Property | Apr 2025 |
| 144 | ROBBINS | Johnson County, WY | Gas Property | May 2012 |
| 145 | ROBBINS | Converse County, WY | Oil & Gas Property | Apr 2025 |
| 146 | ROBBINS | Campbell County, WY | Gas Property | Mar 2007 |
| 147 | ROBBINS | Campbell County, WY | Gas Property | Jan 2011 |
| 148 | ROBBINS UNIT | Converse County, WY | Oil & Gas Property | Apr 2025 |
| 149 | ROBBINS UNIT 39-72 4-1FH | Converse County, WY | Oil & Gas Property | Apr 2025 |
| 150 | ROBERTS | Weston County, WY | Oil Property | Jul 2019 |
| 151 | ROBERTS STEWART | Weston County, WY | Oil Property | May 2025 |
| 152 | ROBINSON | Crook County, WY | Oil Property | Apr 2025 |
| 153 | ROBINSON | Converse County, WY | Oil & Gas Property | Apr 2025 |
| 154 | ROBINSON | Crook County, WY | Oil & Gas Property | Oct 2024 |
| 155 | ROBINSON | Weston County, WY | Oil & Gas Property | Jul 2021 |
| 156 | ROBINSON | Weston County, WY | Oil & Gas Property | Sep 2024 |
| 157 | ROBINSON | Big Horn County, WY | Oil Property | Sep 2019 |
| 158 | ROBINSON R | Crook County, WY | Oil Property | Apr 2025 |
| 159 | ROCHELLE 1 | Converse County, WY | Oil & Gas Property | Apr 2025 |
| 160 | ROCK | Weston County, WY | Oil & Gas Property | Mar 2025 |
| 161 | ROCK CREEK | Campbell County, WY | Oil & Gas Property | Apr 2025 |
| 162 | ROCKY BUTTE | Campbell County, WY | Oil & Gas Property | Apr 2025 |
| 163 | ROCKY BUTTE | Campbell County, WY | Oil & Gas Property | Apr 2025 |
| 164 | ROCKY POINT | Campbell County, WY | Oil & Gas Property | Apr 2025 |
| 165 | RODEO | Niobrara County, WY | Oil & Gas Property | Aug 2022 |
| 166 | ROEHRS | Campbell County, WY | Oil Property | May 1981 |
| 167 | ROGER LEO FED | Converse County, WY | Oil & Gas Property | Apr 2025 |
| 168 | ROGERS | Campbell County, WY | Oil & Gas Property | Oct 2024 |
| 169 | ROGERS | Campbell County, WY | Gas Property | Jun 2015 |
| 170 | ROHDE | Campbell County, WY | Oil & Gas Property | Mar 2025 |
| 171 | ROHWEDER | Laramie County, WY | Oil & Gas Property | Dec 2024 |
| 172 | ROLFF LAKE | Fremont County, WY | Oil Property | Apr 2025 |
| 173 | ROLLING PIN | Campbell County, WY | Oil & Gas Property | Apr 2025 |
| 174 | ROLLINS 01 | Campbell County, WY | Oil & Gas Property | Apr 2025 |
| 175 | ROMMEL CS STATE | Campbell County, WY | Gas Property | Nov 2019 |
| 176 | ROPER FED | Converse County, WY | Oil & Gas Property | Apr 2025 |
| 177 | ROSE | Hot Springs County, WY | Oil Property | Apr 2025 |
| 178 | ROSEBORO | Campbell County, WY | Gas Property | Sep 2010 |
| 179 | ROSEMARY | Laramie County, WY | Oil & Gas Property | Jun 2023 |
| 180 | ROSIE 1-35H | Laramie County, WY | Oil & Gas Property | Apr 2025 |
| 181 | ROSIE FED | Johnson County, WY | Oil & Gas Property | Apr 2025 |
| 182 | ROSS FE | Campbell County, WY | Oil & Gas Property | Apr 2025 |
| 183 | ROTH | Niobrara County, WY | Oil Property | Sep 2021 |
| 184 | ROURKE | Campbell County, WY | Oil & Gas Property | Jan 2007 |
| 185 | ROURKE | Campbell County, WY | Oil & Gas Property | Aug 2022 |
| 186 | ROURKE FEDERAL | Campbell County, WY | Gas Property | Mar 2007 |
| 187 | ROUSH | Campbell County, WY | Oil & Gas Property | Apr 2025 |
| 188 | ROUSSEAU | Park County, WY | Oil & Gas Property | Apr 2025 |
| 189 | ROUTER CS FEDERAL | Johnson County, WY | Gas Property | May 2023 |
| 190 | ROWLEY | Sheridan County, WY | Gas Property | Jun 2015 |
| 191 | ROXY FED 4372-2 | Campbell County, WY | Oil & Gas Property | Apr 2025 |
| 192 | ROY AMOCO | Campbell County, WY | Oil Property | Apr 2025 |
| 193 | ROY WILLEY | Big Horn County, WY | Oil & Gas Property | Apr 2025 |
| 194 | ROZET | Campbell County, WY | Oil & Gas Property | Apr 2025 |
| 195 | ROZET WEST | Campbell County, WY | Oil Property | Mar 2025 |
| 196 | RPG FEDERAL | Crook County, WY | Oil Property | Apr 2025 |
| 197 | RRC 16-34-70 USAC TR 21H | Converse County, WY | Oil & Gas Property | Apr 2025 |
| 198 | RRC 4-34-70 USA D TR 22H | Converse County, WY | Oil & Gas Property | Apr 2025 |
| 199 | RRC 5-34-70 USA B TR 2 | Converse County, WY | Oil & Gas Property | Apr 2025 |
| 200 | RRFED 14101 | Sweetwater County, WY | Gas Property | Jun 2007 |