| 61101 | IRWIN | Throckmorton County, TX | Oil & Gas Property | Jan 2025 |
| 61102 | IRWIN | Woods County, OK | Oil & Gas Property | Nov 2019 |
| 61103 | IRWIN | Nacogdoches County, TX | Oil & Gas Property | Jan 2025 |
| 61104 | IRWIN 1 | Williams County, ND | Oil & Gas Property | Feb 2025 |
| 61105 | IRWIN 1-18H | Pittsburg County, OK | Gas Property | Jan 2025 |
| 61106 | IRWIN 13 FEDERAL | Eddy County, NM | Oil & Gas Property | Feb 2025 |
| 61107 | IRWIN 23 14 FEDERAL | Eddy County, NM | Oil & Gas Property | Feb 2025 |
| 61108 | IRWIN 6-65 23-11 | Elbert County, CO | Oil & Gas Property | Feb 2025 |
| 61109 | IRWIN A 1 | Leon County, TX | Oil & Gas Property | Jan 2025 |
| 61110 | IRWIN BEN | Nacogdoches County, TX | Oil & Gas Property | Jan 2025 |
| 61111 | IRWIN ESTATE 12704 | Washington County, PA | Gas Property | Feb 2025 |
| 61112 | IRWIN I | McKean County, PA | Oil Property | Dec 2019 |
| 61113 | IRWIN STANLEY | Throckmorton County, TX | Oil & Gas Property | Jan 2025 |
| 61114 | IRWIN, JOHN R | Medina County, TX | Oil & Gas Property | Jun 2013 |
| 61115 | IRWIN-BERYLWOOD | Ventura County, CA | Oil & Gas Property | Dec 2024 |
| 61116 | ISA 1H | Lycoming County, PA | Gas Property | Feb 2025 |
| 61117 | ISA 2H | Lycoming County, PA | Gas Property | Feb 2025 |
| 61118 | ISA 3H | Lycoming County, PA | Gas Property | Feb 2025 |
| 61119 | ISA 7H | Lycoming County, PA | Gas Property | Feb 2025 |
| 61120 | ISAAC | Meade County, KS | Oil & Gas Property | Nov 2001 |
| 61121 | ISAAC | Hardin County, TX | Oil & Gas Property | Jan 2025 |
| 61122 | ISAAC | Nacogdoches County, TX | Oil & Gas Property | Jan 2025 |
| 61123 | ISAAC | Pawnee County, KS | Oil Property | Dec 2024 |
| 61124 | ISAAC | Magoffin County, KY | Gas Property | Dec 2023 |
| 61125 | ISAAC | Beaver County, OK | Oil & Gas Property | Jan 2025 |
| 61126 | ISAAC C PARKER 18-09-16 | Kingfisher County, OK | Oil & Gas Property | Jan 2025 |
| 61127 | ISAAC RAWLS | Caddo Parish, LA | Oil Property | Jan 2025 |
| 61128 | ISAAC TAYLOR | Grady County, OK | Oil & Gas Property | Jan 2025 |
| 61129 | ISAAC TRUST A 1 | La Plata County, CO | Gas Property | Feb 2025 |
| 61130 | ISAACS | Seminole County, OK | Oil Property | Jan 2013 |
| 61131 | ISAACS | Roberts County, TX | Oil & Gas Property | Jan 2025 |
| 61132 | ISAACS | Hemphill County, TX | Oil & Gas Property | Jan 2025 |
| 61133 | ISAACS | Hemphill County, TX | Oil & Gas Property | Jan 2025 |
| 61134 | ISAACS 1 | Beaver County, OK | Oil & Gas Property | Jan 2025 |
| 61135 | ISAACS DAVID Q | Hemphill County, TX | Oil & Gas Property | Jan 2025 |
| 61136 | ISAACS JOHN | Hemphill County, TX | Oil & Gas Property | Jan 2025 |
| 61137 | ISAACS UNIT 2H | Butler County, PA | Oil & Gas Property | Feb 2025 |
| 61138 | ISAACS-SIMPSON | Hemphill County, TX | Oil & Gas Property | Jan 2025 |
| 61139 | ISAAK | Karnes County, TX | Oil & Gas Property | Jan 2025 |
| 61140 | ISABEL | Caddo Parish, LA | Oil & Gas Property | Dec 2024 |
| 61141 | ISABEL | Big Horn County, WY | Oil & Gas Property | Feb 2025 |
| 61142 | ISABEL | Kern County, CA | Oil & Gas Property | Dec 2024 |
| 61143 | ISABEL | Sherman County, KS | Gas Property | Dec 2024 |
| 61144 | ISABEL | Ector County, TX | Oil & Gas Property | Jan 2025 |
| 61145 | ISABEL | Jefferson County, PA | Oil & Gas Property | Dec 2024 |
| 61146 | ISABEL A | San Juan County, NM | Gas Property | Feb 2025 |
| 61147 | ISABEL REPINE | Indiana County, PA | Gas Property | Dec 2024 |
| 61148 | ISABELLA | Gonzales County, TX | Oil & Gas Property | Apr 2003 |
| 61149 | ISABELLA FEDERAL 6093 42-24H | Burke County, ND | Oil & Gas Property | Feb 2025 |
| 61150 | ISABELLA MAGNESS | Sabine Parish, LA | Oil Property | Dec 2024 |
| 61151 | ISABELLA POWELL | Meigs County, OH | Oil & Gas Property | Dec 2024 |
| 61152 | ISABELLA TTT 41-26HU | Mountrail County, ND | Oil & Gas Property | Feb 2025 |
| 61153 | ISABELLE | Finney County, KS | Oil Property | Dec 2024 |
| 61154 | ISABELLE | Karnes County, TX | Oil & Gas Property | Jan 2025 |
| 61155 | ISALY | Monroe County, OH | Oil & Gas Property | Dec 2024 |
| 61156 | ISBELL | Grimes County, TX | Oil & Gas Property | Jan 2025 |
| 61157 | ISBELL | Bradford County, PA | Gas Property | Feb 2025 |
| 61158 | ISBELL | Johnson County, TX | Oil & Gas Property | Jan 2025 |
| 61159 | ISBELL 21 | Parker County, TX | Oil & Gas Property | Jan 2025 |
| 61160 | ISBELL HORIZONTAL UNIT | Midland County, TX | Oil & Gas Property | Jan 2025 |
| 61161 | ISBELL-FRY | Jones County, TX | Oil Property | Sep 2024 |
| 61162 | ISBILL | McClain County, OK | Oil & Gas Property | May 2024 |
| 61163 | ISCH | Roger Mills County, OK | Oil & Gas Property | Dec 2024 |
| 61164 | ISCO A | Los Angeles County, CA | Oil & Gas Property | Jan 1993 |
| 61165 | ISEMAN | Armstrong County, PA | Gas Property | Dec 2024 |
| 61166 | ISENBART | Woods County, OK | Oil & Gas Property | Jan 2025 |
| 61167 | ISENBERGER | Converse County, WY | Gas Property | Nov 2015 |
| 61168 | ISENHOUR | Sublette County, WY | Oil & Gas Property | Dec 2024 |
| 61169 | ISENHOWER | Callahan County, TX | Oil & Gas Property | Jan 2025 |
| 61170 | ISENHOWER W. EST | Eastland County, TX | Oil & Gas Property | Dec 2024 |
| 61171 | ISENSEE | Nueces County, TX | Oil & Gas Property | Jan 2025 |
| 61172 | ISERN | Ness County, KS | Oil Property | Dec 2024 |
| 61173 | ISERN | Barton County, KS | Oil & Gas Property | Dec 2024 |
| 61174 | ISERNHAGEN | Cheyenne County, KS | Gas Property | Dec 2024 |
| 61175 | ISG/DCE | Cuyahoga County, OH | Oil & Gas Property | Dec 2024 |
| 61176 | ISGAR A#4 | La Plata County, CO | Gas Property | Feb 2025 |
| 61177 | ISGAR GAS UNIT A 1 | La Plata County, CO | Gas Property | Feb 2025 |
| 61178 | ISHAM | Jim Wells County, TX | Oil & Gas Property | Jan 2025 |
| 61179 | ISHIBASHI | Orange County, CA | Oil & Gas Property | Jul 1989 |
| 61180 | ISHIGURO | Weld County, CO | Oil & Gas Property | Jul 2024 |
| 61181 | ISHMAN | McKean County, PA | Oil & Gas Property | Dec 2024 |
| 61182 | ISIDRO MORENO ET AL | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 61183 | ISLAND | Seminole County, OK | Oil & Gas Property | Jan 2025 |
| 61184 | ISLAND BUTTE | Montezuma County, CO | Oil & Gas Property | Feb 2025 |
| 61185 | ISLAND CREEK | Lincoln County, WV | Oil & Gas Property | Dec 2021 |
| 61186 | ISLAND CREEK | Mingo County, WV | Gas Property | Dec 2021 |
| 61187 | ISLAND CREEK CO | Hopkins County, KY | Oil & Gas Property | Dec 2022 |
| 61188 | ISLAND CREEK CO | Logan County, WV | Oil & Gas Property | Dec 2021 |
| 61189 | ISLAND CREEK COAL | Upshur County, WV | Oil & Gas Property | Dec 2021 |
| 61190 | ISLAND CREEK COAL C | McDowell County, WV | Gas Property | Dec 2021 |
| 61191 | ISLAND CREEK COAL CO | Hopkins County, KY | Oil & Gas Property | Dec 2021 |
| 61192 | ISLAND LAKE 6092 12-24H | Burke County, ND | Oil & Gas Property | Feb 2025 |
| 61193 | ISLAND PARK B | Garfield County, CO | Oil & Gas Property | Jan 2025 |
| 61194 | ISLAND RANCH | Garfield County, CO | Oil & Gas Property | Feb 2025 |
| 61195 | ISLAND U | Uintah County, UT | Oil & Gas Property | Dec 2015 |
| 61196 | ISLAND U | Uintah County, UT | Oil & Gas Property | Feb 2025 |
| 61197 | ISLAND UNIT | Uintah County, UT | Oil & Gas Property | Feb 2025 |
| 61198 | ISLE | Montgomery County, KS | Gas Property | Dec 2024 |
| 61199 | ISLE ROYAL 148-95-02A-11H-TF-LL | Dunn County, ND | Oil & Gas Property | Feb 2025 |
| 61200 | ISLER FE | Chaves County, NM | Gas Property | Feb 2025 |