| 139101 | ZOLADZ | Genesee County, NY | Gas Property | Dec 2023 |
| 139102 | ZOLDOSKE | Harper County, OK | Oil & Gas Property | May 2024 |
| 139103 | ZOLDOSKE | Ellis County, OK | Oil & Gas Property | Dec 2019 |
| 139104 | ZOLLAR | Lincoln County, OK | Oil & Gas Property | Jun 2024 |
| 139105 | ZOLLER 34 | Ward County, TX | Oil & Gas Property | Jun 2024 |
| 139106 | ZOLLINGER | Harper County, OK | Oil & Gas Property | May 2024 |
| 139107 | ZONDLAK | Midland County, MI | Oil Property | Dec 2008 |
| 139108 | ZONKER | Hood County, TX | Oil & Gas Property | Jun 2024 |
| 139109 | ZOOK | Montgomery County, KS | Oil & Gas Property | May 2024 |
| 139110 | ZOOK | Pawnee County, KS | Oil & Gas Property | Jan 2023 |
| 139111 | ZOOK | Kay County, OK | Oil & Gas Property | Jun 2022 |
| 139112 | ZOOK 1 | Woods County, OK | Oil & Gas Property | Sep 2015 |
| 139113 | ZOOK 1-2 | Woods County, OK | Oil & Gas Property | Feb 2023 |
| 139114 | ZOOK 41-25TFH | Mountrail County, ND | Oil & Gas Property | Jul 2024 |
| 139115 | ZORA MAE | Johnson County, TX | Oil & Gas Property | Jun 2024 |
| 139116 | ZORA UNIT | Cooke County, TX | Oil & Gas Property | Jun 2024 |
| 139117 | ZORACKI | Westmoreland County, PA | Gas Property | Dec 2023 |
| 139118 | ZORILLA MALONE | Victoria County, TX | Oil & Gas Property | Jun 2024 |
| 139119 | ZORIN | Monroe County, OH | Gas Property | Jun 2024 |
| 139120 | ZORN | Richardson County, NE | Oil Property | Dec 2023 |
| 139121 | ZORN | Barton County, KS | Oil Property | May 2024 |
| 139122 | ZORNS T. H | Wise County, TX | Oil & Gas Property | Jun 2024 |
| 139123 | ZORO LOT 451 0 | Warren County, PA | Oil & Gas Property | Dec 2023 |
| 139124 | ZOROSAK UNIT | Westmoreland County, PA | Gas Property | Jun 2024 |
| 139125 | ZORRILLO ANZ FEDERAL | Eddy County, NM | Oil & Gas Property | Apr 2021 |
| 139126 | ZORRO | McKenzie County, ND | Oil & Gas Property | Jul 2024 |
| 139127 | ZORRO | Washington County, PA | Gas Property | Jun 2024 |
| 139128 | ZORRO 16 | Major County, OK | Oil & Gas Property | Apr 2020 |
| 139129 | ZOS 1-26-35XH | Custer County, OK | Oil & Gas Property | May 2024 |
| 139130 | ZPZ 34-196 WRD UNIT | Ward County, TX | Oil & Gas Property | Jun 2024 |
| 139131 | ZPZ 34-211 UNIT | Ward County, TX | Oil & Gas Property | Jun 2024 |
| 139132 | ZPZ FEE | Upton County, TX | Oil & Gas Property | Jun 2024 |
| 139133 | ZPZ FEE 10 | Upton County, TX | Oil & Gas Property | Jun 2024 |
| 139134 | ZR UNIT | McMullen County, TX | Oil & Gas Property | Jun 2024 |
| 139135 | ZRZAVY UNIT | Frio County, TX | Oil & Gas Property | Jun 2024 |
| 139136 | ZSCHECH C UNIT | Burleson County, TX | Oil Property | Jun 2024 |
| 139137 | ZUBER | Jack County, TX | Oil & Gas Property | Jun 2024 |
| 139138 | ZUBER P. GOODWIN | Wood County, TX | Oil Property | Aug 2023 |
| 139139 | ZUCINNI CS FED | Campbell County, WY | Gas Property | Feb 2012 |
| 139140 | ZUCK S.V. STATE A2796 | Webb County, TX | Oil & Gas Property | May 2024 |
| 139141 | ZUCKERMAN | San Joaquin County, CA | Gas Property | Mar 1990 |
| 139142 | ZUDELL | Noble County, OH | Oil & Gas Property | Dec 2023 |
| 139143 | ZUEB | Gray County, TX | Oil & Gas Property | Jun 2024 |
| 139144 | ZUEGE | Yuma County, CO | Gas Property | Jun 2024 |
| 139145 | ZUEHLKE UNIT | Fayette County, TX | Oil & Gas Property | Jun 2024 |
| 139146 | ZUERCHER | Edwards County, KS | Oil & Gas Property | May 2024 |
| 139147 | ZUERCHER | Edwards County, KS | Oil & Gas Property | May 2024 |
| 139148 | ZUGG | Pawnee County, KS | Oil & Gas Property | May 2024 |
| 139149 | ZUIDERVEEN | Missaukee County, MI | Oil & Gas Property | Mar 2024 |
| 139150 | ZULA 1 | Howard County, TX | Oil & Gas Property | Jun 2024 |
| 139151 | ZULA 18 | Roger Mills County, OK | Oil & Gas Property | Mar 2022 |
| 139152 | ZULCH, SALLY | Madison County, TX | Oil & Gas Property | Jun 2024 |
| 139153 | ZULETTE | Reagan County, TX | Oil & Gas Property | Jun 2024 |
| 139154 | ZULU | Mountrail County, ND | Oil & Gas Property | Jul 2024 |
| 139155 | ZUM MALLEN | Canadian County, OK | Oil & Gas Property | Feb 2021 |
| 139156 | ZUM MALLEN 1307 | Canadian County, OK | Oil & Gas Property | May 2024 |
| 139157 | ZUMA 3 | Loving County, TX | Oil & Gas Property | Jun 2024 |
| 139158 | ZUMA 57-T1-3X10 | Loving County, TX | Oil & Gas Property | Jun 2024 |
| 139159 | ZUMA STATE UNIT 72 10-21 3H | Reeves County, TX | Oil & Gas Property | Jun 2024 |
| 139160 | ZUMBACH UNIT | Tuscarawas County, OH | Oil & Gas Property | Dec 2023 |
| 139161 | ZUMBRO | Franklin County, MS | Oil & Gas Property | Jul 2021 |
| 139162 | ZUMMALLEN | Kingfisher County, OK | Oil & Gas Property | May 2024 |
| 139163 | ZUMMALLEN | Crawford County, KS | Oil Property | May 2024 |
| 139164 | ZUMPETTA, LAWRENCE ET AL ZMBG | Wetzel County, WV | Oil & Gas Property | Dec 2021 |
| 139165 | ZUMWALT | Colusa County, CA | Gas Property | Jul 2024 |
| 139166 | ZUMWALT | Colusa County, CA | Gas Property | Jul 2005 |
| 139167 | ZUMWALT | Colusa County, CA | Gas Property | Jun 1988 |
| 139168 | ZUMWALT | Glenn County, CA | Gas Property | Sep 2009 |
| 139169 | ZUNI DELAWARE UNIT | Loving County, TX | Oil & Gas Property | Jul 2021 |
| 139170 | ZUPANEC | Ford County, KS | Oil & Gas Property | Mar 2024 |
| 139171 | ZUPSIC | Allegheny County, PA | Gas Property | Dec 2023 |
| 139172 | ZURBRUGG | Columbiana County, OH | Oil & Gas Property | Dec 2023 |
| 139173 | ZURICH TOWNSITE | Rooks County, KS | Oil Property | Aug 1999 |
| 139174 | ZVOLANEK | Ellsworth County, KS | Oil Property | May 2024 |
| 139175 | ZVOLANEK | Ellsworth County, KS | Oil Property | Feb 2024 |
| 139176 | ZWAHLEN | Muskingum County, OH | Oil & Gas Property | Dec 2022 |
| 139177 | ZWEIG | Gray County, TX | Gas Property | Apr 2004 |
| 139178 | ZWERNEMANN | Jim Wells County, TX | Oil & Gas Property | Apr 2024 |
| 139179 | ZWEYGARDT | Cheyenne County, KS | Oil & Gas Property | May 2024 |
| 139180 | ZWEYGARDT | Cheyenne County, KS | Gas Property | May 2024 |
| 139181 | ZWEYGARDT | Cheyenne County, KS | Gas Property | May 2024 |
| 139182 | ZWICK | Rice County, KS | Oil Property | May 2024 |
| 139183 | ZWILLICH | Ellsworth County, KS | Oil Property | May 2024 |
| 139184 | ZWIRN | Yuma County, CO | Gas Property | Jun 2024 |
| 139185 | ZWIRN | Yuma County, CO | Gas Property | Jun 2024 |
| 139186 | ZYBACH | Wheeler County, TX | Oil & Gas Property | Jun 2024 |
| 139187 | ZYBACH | Wheeler County, TX | Oil & Gas Property | Jun 2024 |
| 139188 | ZYBACH 6 | Wheeler County, TX | Oil & Gas Property | Aug 2023 |
| 139189 | ZYBACH-T | Wheeler County, TX | Oil & Gas Property | Jun 2024 |
| 139190 | ZYSK FEDERAL 1-A | Campbell County, WY | Oil & Gas Property | Jul 2024 |