| 54101 | HART CATTLE CO | Stephens County, TX | Oil & Gas Property | Dec 2025 |
| 54102 | HART FEDERAL | Blaine County, OK | Oil & Gas Property | Dec 2025 |
| 54103 | HART GAS UNIT | Harrison County, TX | Oil & Gas Property | Dec 2025 |
| 54104 | HART MAX | Nacogdoches County, TX | Oil & Gas Property | Jun 2025 |
| 54105 | HART NORTH UNIT | Sullivan County, PA | Gas Property | Jan 2026 |
| 54106 | HART RANCH | Palo Pinto County, TX | Oil & Gas Property | Dec 2025 |
| 54107 | HART RANCH | Palo Pinto County, TX | Oil & Gas Property | Dec 2024 |
| 54108 | HART ROBERT | Wayne County, OH | Oil & Gas Property | Dec 2025 |
| 54109 | HART SOUTH UNIT | Sullivan County, PA | Gas Property | Jan 2026 |
| 54110 | HART UNIT | Greene County, PA | Gas Property | Jan 2026 |
| 54111 | HART WATER FLOOD UNIT | Marion County, TX | Oil & Gas Property | Dec 2025 |
| 54112 | HART, B F | Clay County, KY | Gas Property | Dec 2024 |
| 54113 | HART, HOMER | Whitley County, KY | Oil & Gas Property | Dec 2022 |
| 54114 | HART, J. B | Palo Pinto County, TX | Oil & Gas Property | Dec 2025 |
| 54115 | HART, JOHN J. & RENEE HART | Marshall County, WV | Oil & Gas Property | Dec 2021 |
| 54116 | HART, JUSTINA | Ritchie County, WV | Oil & Gas Property | Dec 2021 |
| 54117 | HART, RONALD & | Doddridge County, WV | Oil & Gas Property | Dec 2021 |
| 54118 | HART-DEARIN | Kern County, CA | Oil & Gas Property | Dec 2025 |
| 54119 | HARTARY | Forest County, PA | Oil Property | Dec 2019 |
| 54120 | HARTBURG | Newton County, TX | Oil & Gas Property | Dec 2025 |
| 54121 | HARTBURG | Orange County, TX | Oil & Gas Property | Sep 2016 |
| 54122 | HARTEBEEST 12 | Reeves County, TX | Oil & Gas Property | Dec 2025 |
| 54123 | HARTEL 1 | McKenzie County, ND | Oil & Gas Property | Jan 2026 |
| 54124 | HARTER | Butler County, KS | Oil Property | Sep 2025 |
| 54125 | HARTER | Stafford County, KS | Oil Property | Jul 2025 |
| 54126 | HARTER | Lasalle Parish, LA | Oil Property | Dec 2024 |
| 54127 | HARTER | Jack County, TX | Oil & Gas Property | Oct 2025 |
| 54128 | HARTER 15 | Caddo Parish, LA | Oil & Gas Property | Nov 2024 |
| 54129 | HARTER UNIT | Stark County, OH | Oil & Gas Property | Dec 2024 |
| 54130 | HARTER-TENSASDELTA | Lasalle Parish, LA | Oil Property | Nov 2024 |
| 54131 | HARTFIELD | Guadalupe County, TX | Oil & Gas Property | Dec 2025 |
| 54132 | HARTFORD | Williams County, ND | Oil & Gas Property | Jan 2026 |
| 54133 | HARTGE | Westmoreland County, PA | Oil & Gas Property | Dec 2025 |
| 54134 | HARTGRAVES | Johnston County, OK | Oil & Gas Property | Dec 2025 |
| 54135 | HARTGRAVES | Carter County, OK | Oil & Gas Property | Dec 2025 |
| 54136 | HARTGROVE | Reagan County, TX | Oil & Gas Property | Dec 2025 |
| 54137 | HARTGROVE | Reagan County, TX | Oil & Gas Property | Dec 2025 |
| 54138 | HARTH | Ventura County, CA | Oil & Gas Property | Dec 2025 |
| 54139 | HARTIN | Denton County, TX | Oil & Gas Property | Dec 2025 |
| 54140 | HARTIN | Grady County, OK | Oil & Gas Property | Jul 2019 |
| 54141 | HARTING | Payne County, OK | Oil & Gas Property | Dec 2020 |
| 54142 | HARTING | Norton County, KS | Oil Property | Jul 2024 |
| 54143 | HARTING 1 | Logan County, OK | Oil & Gas Property | Nov 2023 |
| 54144 | HARTJE | Los Angeles County, CA | Oil & Gas Property | Dec 2025 |
| 54145 | HARTLE | Rice County, KS | Oil Property | May 2013 |
| 54146 | HARTLEY | Fayette County, PA | Gas Property | Jan 2026 |
| 54147 | HARTLEY | Freestone County, TX | Oil & Gas Property | Dec 2025 |
| 54148 | HARTLEY | Freestone County, TX | Oil & Gas Property | Dec 2025 |
| 54149 | HARTLEY | Bay County, MI | Oil Property | Jan 2026 |
| 54150 | HARTLEY | Grady County, OK | Oil & Gas Property | Dec 2025 |
| 54151 | HARTLEY | Grady County, OK | Oil & Gas Property | Dec 2025 |
| 54152 | HARTLEY | Greenwood County, KS | Oil Property | Nov 1995 |
| 54153 | HARTLEY | Glasscock County, TX | Oil & Gas Property | Dec 2025 |
| 54154 | HARTLEY | Garfield County, OK | Oil & Gas Property | Dec 2025 |
| 54155 | HARTLEY | Athens County, OH | Oil & Gas Property | Dec 2025 |
| 54156 | HARTLEY | Sherman County, KS | Oil Property | Jun 1996 |
| 54157 | HARTLEY 2-13-6 | Harrison County, OH | Oil & Gas Property | Dec 2025 |
| 54158 | HARTLEY FEDERAL | Roger Mills County, OK | Oil & Gas Property | Jul 2008 |
| 54159 | HARTLEY HV UNIT | Harrison County, TX | Gas Property | Nov 2025 |
| 54160 | HARTLEY, DAVID | Tyler County, WV | Oil & Gas Property | Dec 2021 |
| 54161 | HARTLEY, DAVID M | Tyler County, WV | Oil & Gas Property | Dec 2021 |
| 54162 | HARTLEY, LUCILLE WEB13 | Marshall County, WV | Oil & Gas Property | Dec 2021 |
| 54163 | HARTLEY, RUSSEL | Lewis County, WV | Oil & Gas Property | Dec 2021 |
| 54164 | HARTLINE | Stark County, OH | Oil & Gas Property | Dec 2025 |
| 54165 | HARTMAN | Sumner County, KS | Oil Property | Sep 2025 |
| 54166 | HARTMAN | Indiana County, PA | Oil & Gas Property | Dec 2025 |
| 54167 | HARTMAN | Gilmer County, WV | Oil & Gas Property | Dec 2021 |
| 54168 | HARTMAN | Dunn County, ND | Oil & Gas Property | Jan 2026 |
| 54169 | HARTMAN | Montague County, TX | Oil & Gas Property | Dec 2025 |
| 54170 | HARTMAN | Dunn County, ND | Oil & Gas Property | Jan 2026 |
| 54171 | HARTMAN | Renville County, ND | Oil Property | Jan 2026 |
| 54172 | HARTMAN | Cooke County, TX | Oil Property | Dec 2025 |
| 54173 | HARTMAN | Mecosta County, MI | Oil Property | Dec 2025 |
| 54174 | HARTMAN | Muskegon County, MI | Oil Property | Aug 2025 |
| 54175 | HARTMAN | Stephens County, OK | Oil Property | Jan 2021 |
| 54176 | HARTMAN | Seneca County, NY | Gas Property | Dec 2024 |
| 54177 | HARTMAN | San Juan County, NM | Oil & Gas Property | Jan 2026 |
| 54178 | HARTMAN | Dewitt County, TX | Oil & Gas Property | Dec 2025 |
| 54179 | HARTMAN | Ventura County, CA | Oil & Gas Property | Dec 2025 |
| 54180 | HARTMAN | Kingfisher County, OK | Oil & Gas Property | Jan 2023 |
| 54181 | HARTMAN | Ellis County, OK | Oil & Gas Property | Dec 2025 |
| 54182 | HARTMAN | Love County, OK | Oil Property | Jun 2025 |
| 54183 | HARTMAN | Dunn County, ND | Oil & Gas Property | Jan 2026 |
| 54184 | HARTMAN | Roger Mills County, OK | Oil & Gas Property | Dec 2025 |
| 54185 | HARTMAN | San Juan County, NM | Oil & Gas Property | Jan 2026 |
| 54186 | HARTMAN 1 | Alfalfa County, OK | Oil & Gas Property | Dec 2025 |
| 54187 | HARTMAN A | Dewitt County, TX | Oil & Gas Property | Dec 2025 |
| 54188 | HARTMAN A | Guadalupe County, TX | Oil Property | Dec 2025 |
| 54189 | HARTMAN A-CANTU A SA | Dewitt County, TX | Oil & Gas Property | Dec 2025 |
| 54190 | HARTMAN PAUL | Holmes County, OH | Oil & Gas Property | Dec 2024 |
| 54191 | HARTMAN UNIT | Karnes County, TX | Oil & Gas Property | Dec 2025 |
| 54192 | HARTMAN UNIT A | Dewitt County, TX | Oil & Gas Property | Dec 2025 |
| 54193 | HARTMAN-BLACK USW | Dewitt County, TX | Oil & Gas Property | Dec 2025 |
| 54194 | HARTMAN-RIPPSTEIN MIKKELSON SA1 | Karnes County, TX | Oil & Gas Property | Dec 2025 |
| 54195 | HARTMAN-WINTER | Russell County, KS | Oil Property | Sep 2025 |
| 54196 | HARTMAN/STEPHENS | Indiana County, PA | Oil & Gas Property | Dec 2025 |
| 54197 | HARTMANN | Gonzales County, TX | Oil & Gas Property | Dec 2025 |
| 54198 | HARTMANN | Wilson County, TX | Oil & Gas Property | Aug 2025 |
| 54199 | HARTMANN | Ventura County, CA | Oil & Gas Property | Dec 2025 |
| 54200 | HARTMANN ALVIN | Guadalupe County, TX | Oil & Gas Property | Dec 2025 |