| 52101 | HAPPYLAND | Pontotoc County, OK | Oil & Gas Property | Oct 2019 |
| 52102 | HAR-REYNOLDS | Karnes County, TX | Oil & Gas Property | Mar 2026 |
| 52103 | HARACZ AMO FEDERAL | Eddy County, NM | Oil & Gas Property | Apr 2026 |
| 52104 | HARALAMBOUS 03 074 | Bradford County, PA | Gas Property | Mar 2026 |
| 52105 | HARALDSON | Woodson County, KS | Oil Property | Feb 2026 |
| 52106 | HARALSON | Stephens County, TX | Oil & Gas Property | Mar 2026 |
| 52107 | HARALSON 1 | Smith County, TX | Oil & Gas Property | Mar 2026 |
| 52108 | HARALSON BEEFMASTER | Zapata County, TX | Gas Property | Feb 2026 |
| 52109 | HARAM | Bottineau County, ND | Oil & Gas Property | Apr 2026 |
| 52110 | HARAMBE 32 | Glasscock County, TX | Oil & Gas Property | Mar 2026 |
| 52111 | HARANDA | Bay County, MI | Oil Property | Dec 2025 |
| 52112 | HARBACEK | Ellsworth County, KS | Oil Property | Feb 2026 |
| 52113 | HARBAUGH | Barber County, KS | Oil & Gas Property | Feb 2026 |
| 52114 | HARBAUGH | Shackelford County, TX | Oil & Gas Property | Feb 2026 |
| 52115 | HARBAUGH | Barber County, KS | Oil & Gas Property | Feb 2026 |
| 52116 | HARBAUGH | Ochiltree County, TX | Oil & Gas Property | Mar 2026 |
| 52117 | HARBAUGH | Barber County, KS | Oil & Gas Property | Sep 2025 |
| 52118 | HARBAUGH | Russell County, KS | Oil Property | Feb 2026 |
| 52119 | HARBAUGH | Portage County, OH | Oil & Gas Property | Dec 2025 |
| 52120 | HARBAUGH | Barber County, KS | Oil & Gas Property | Feb 2026 |
| 52121 | HARBAUGH | Kearny County, KS | Gas Property | Feb 2026 |
| 52122 | HARBAUGH | Russell County, KS | Oil Property | Feb 2026 |
| 52123 | HARBER | Seminole County, OK | Oil & Gas Property | Apr 2026 |
| 52124 | HARBER | Archer County, TX | Oil & Gas Property | Feb 2026 |
| 52125 | HARBER MOLLIE | Archer County, TX | Oil & Gas Property | Feb 2026 |
| 52126 | HARBER, GRACE T | Runnels County, TX | Gas Property | Mar 2026 |
| 52127 | HARBERT | Kanawha County, WV | Oil & Gas Property | Oct 2021 |
| 52128 | HARBERT | Harrison County, WV | Oil & Gas Property | Dec 2021 |
| 52129 | HARBERT | Harrison County, WV | Oil & Gas Property | Dec 2021 |
| 52130 | HARBIN | Saline County, KS | Oil Property | Jan 2026 |
| 52131 | HARBIN | Eastland County, TX | Oil & Gas Property | Sep 2024 |
| 52132 | HARBISON | Miami County, KS | Oil Property | Feb 2026 |
| 52133 | HARBISON | Washington County, PA | Gas Property | Mar 2026 |
| 52134 | HARBISON | Indiana County, PA | Gas Property | Dec 2025 |
| 52135 | HARBISON | Archer County, TX | Oil & Gas Property | Mar 2026 |
| 52136 | HARBISON | Noble County, OK | Oil & Gas Property | May 2014 |
| 52137 | HARBISON WALKER | Clinton County, PA | Gas Property | Dec 2025 |
| 52138 | HARBISON-FISCHER | Tarrant County, TX | Oil & Gas Property | Mar 2026 |
| 52139 | HARBISON-WALKER | Clearfield County, PA | Gas Property | Dec 2025 |
| 52140 | HARBISON-WALKER | Clearfield County, PA | Gas Property | Dec 2025 |
| 52141 | HARBOLD | Eddy County, NM | Oil & Gas Property | Mar 2026 |
| 52142 | HARBOLT(WINGER) FIELD UNIT | Cooke County, TX | Oil & Gas Property | Mar 2026 |
| 52143 | HARBORDT | Santa Barbara County, CA | Oil & Gas Property | Jan 2021 |
| 52144 | HARBOUR | Tarrant County, TX | Oil & Gas Property | Sep 2024 |
| 52145 | HARBOUR | Hutchinson County, TX | Oil & Gas Property | Mar 2026 |
| 52146 | HARBOUR 5 | Williams County, ND | Oil & Gas Property | Apr 2026 |
| 52147 | HARBOURTOWN FED | Duchesne County, UT | Oil & Gas Property | Mar 2013 |
| 52148 | HARCROW | Leon County, TX | Oil & Gas Property | Mar 2026 |
| 52149 | HARD AS NAILS AMD ST | Chaves County, NM | Gas Property | Mar 2026 |
| 52150 | HARD DEAL | San Juan County, NM | Gas Property | Sep 2019 |
| 52151 | HARD KNOX 0304 | Garvin County, OK | Oil & Gas Property | Mar 2026 |
| 52152 | HARD ROCK | Cass County, TX | Oil & Gas Property | Mar 2026 |
| 52153 | HARDAGE | McClain County, OK | Oil & Gas Property | Oct 2020 |
| 52154 | HARDAGE & WILSON | Ward County, TX | Oil & Gas Property | Mar 2026 |
| 52155 | HARDAWAY | Webster Parish, LA | Oil Property | Jan 2025 |
| 52156 | HARDAWAY | Adams County, CO | Oil Property | Dec 1999 |
| 52157 | HARDBARGER | Ritchie County, WV | Oil & Gas Property | Dec 2021 |
| 52158 | HARDBARGER | Ritchie County, WV | Oil & Gas Property | Dec 2021 |
| 52159 | HARDBERGER | Gaines County, TX | Oil & Gas Property | Feb 2026 |
| 52160 | HARDCASTLE | Allen County, KY | Oil Property | Dec 2024 |
| 52161 | HARDCASTLE | Jackson County, MI | Oil & Gas Property | Apr 2026 |
| 52162 | HARDCASTLE | Johnson County, TX | Oil & Gas Property | Feb 2026 |
| 52163 | HARDCASTLE | Oklahoma County, OK | Oil Property | Mar 2026 |
| 52164 | HARDCASTLE STATE 27-34-39 | Reeves County, TX | Oil & Gas Property | Mar 2026 |
| 52165 | HARDEE | Mitchell County, TX | Oil & Gas Property | Mar 2026 |
| 52166 | HARDEMAN | Caldwell County, TX | Oil & Gas Property | Mar 2026 |
| 52167 | HARDEMAN | Caldwell County, TX | Oil & Gas Property | Mar 2026 |
| 52168 | HARDEMAN | Lee County, TX | Oil & Gas Property | Jan 2026 |
| 52169 | HARDEMAN DOROTHY JEAN | Denton County, TX | Gas Property | Mar 2026 |
| 52170 | HARDEMAN-HARDEMAN (SA) A 1H | Denton County, TX | Gas Property | Mar 2026 |
| 52171 | HARDEMAN-TURNER UNIT | Caldwell County, TX | Oil & Gas Property | Mar 2026 |
| 52172 | HARDEN | Alfalfa County, OK | Oil & Gas Property | Mar 2026 |
| 52173 | HARDEN | Greene County, PA | Gas Property | Mar 2026 |
| 52174 | HARDEN | Hughes County, OK | Oil & Gas Property | Mar 2026 |
| 52175 | HARDEN | Hockley County, TX | Oil & Gas Property | Mar 2026 |
| 52176 | HARDEN | Roger Mills County, OK | Oil & Gas Property | Mar 2026 |
| 52177 | HARDEN | Clark County, KS | Oil & Gas Property | Jun 2024 |
| 52178 | HARDEN FARMS ROG230H | Greene County, PA | Gas Property | Mar 2026 |
| 52179 | HARDER | Chase County, KS | Gas Property | Aug 2021 |
| 52180 | HARDER | Glacier County, MT | Gas Property | Aug 2013 |
| 52181 | HARDER | Allegany County, NY | Oil Property | Dec 2022 |
| 52182 | HARDER BROUSSARD UNIT | Jefferson County, TX | Oil & Gas Property | Feb 2026 |
| 52183 | HARDER L | Allegany County, NY | Gas Property | Dec 2000 |
| 52184 | HARDESTY | Sheridan County, KS | Oil Property | Jan 2008 |
| 52185 | HARDESTY | Red Willow County, NE | Oil Property | Dec 2025 |
| 52186 | HARDESTY | Sumner County, KS | Oil Property | Feb 2026 |
| 52187 | HARDESTY | Weld County, CO | Oil & Gas Property | Mar 2018 |
| 52188 | HARDESTY | Grady County, OK | Oil & Gas Property | Mar 2026 |
| 52189 | HARDESTY | Grady County, OK | Oil & Gas Property | Apr 2026 |
| 52190 | HARDESTY | Neosho County, KS | Oil Property | Apr 1987 |
| 52191 | HARDESTY A-HOOKS 4 USW | Dewitt County, TX | Oil & Gas Property | Mar 2026 |
| 52192 | HARDESTY UNIT A | Dewitt County, TX | Oil & Gas Property | Mar 2026 |
| 52193 | HARDGRAVE | Logan County, AR | Gas Property | Jun 2024 |
| 52194 | HARDGRAVE, BEN | Johnson County, AR | Gas Property | Jun 2024 |
| 52195 | HARDIE | San Juan County, NM | Oil & Gas Property | Apr 2026 |
| 52196 | HARDIE | San Juan County, NM | Oil & Gas Property | Apr 2026 |
| 52197 | HARDIE | Greene County, PA | Oil & Gas Property | Mar 2026 |
| 52198 | HARDIN | Le Flore County, OK | Gas Property | Mar 2026 |
| 52199 | HARDIN | Jack County, TX | Oil & Gas Property | Mar 2026 |
| 52200 | HARDIN | Claiborne Parish, LA | Oil & Gas Property | May 2012 |