| 140101 | ZOLADZ | Genesee County, NY | Gas Property | Dec 2023 |
| 140102 | ZOLDOSKE | Harper County, OK | Oil & Gas Property | Sep 2024 |
| 140103 | ZOLDOSKE | Ellis County, OK | Oil & Gas Property | Dec 2019 |
| 140104 | ZOLLAR | Lincoln County, OK | Oil & Gas Property | Oct 2024 |
| 140105 | ZOLLER 34 | Ward County, TX | Oil & Gas Property | Oct 2024 |
| 140106 | ZOLLINGER | Harper County, OK | Oil & Gas Property | Oct 2024 |
| 140107 | ZONDLAK | Midland County, MI | Oil Property | Dec 2008 |
| 140108 | ZONKER | Hood County, TX | Oil & Gas Property | Oct 2024 |
| 140109 | ZOOK | Kay County, OK | Oil & Gas Property | Sep 2024 |
| 140110 | ZOOK | Montgomery County, KS | Oil & Gas Property | Sep 2024 |
| 140111 | ZOOK | Pawnee County, KS | Oil & Gas Property | Feb 2023 |
| 140112 | ZOOK 1 | Woods County, OK | Oil & Gas Property | Sep 2015 |
| 140113 | ZOOK 1-2 | Woods County, OK | Oil & Gas Property | Feb 2023 |
| 140114 | ZOOK 41-25TFH | Mountrail County, ND | Oil & Gas Property | Nov 2024 |
| 140115 | ZORA MAE | Johnson County, TX | Oil & Gas Property | Sep 2024 |
| 140116 | ZORA UNIT | Cooke County, TX | Oil & Gas Property | Oct 2024 |
| 140117 | ZORACKI | Westmoreland County, PA | Gas Property | Dec 2023 |
| 140118 | ZORILLA MALONE | Victoria County, TX | Oil & Gas Property | Oct 2024 |
| 140119 | ZORIN | Monroe County, OH | Gas Property | Sep 2024 |
| 140120 | ZORN | Barton County, KS | Oil Property | Sep 2024 |
| 140121 | ZORN | Richardson County, NE | Oil Property | Dec 2023 |
| 140122 | ZORNS T. H | Wise County, TX | Oil & Gas Property | Oct 2024 |
| 140123 | ZORO LOT 451 0 | Warren County, PA | Oil & Gas Property | Dec 2023 |
| 140124 | ZOROSAK UNIT | Westmoreland County, PA | Gas Property | Oct 2024 |
| 140125 | ZORRILLO ANZ FEDERAL | Eddy County, NM | Oil & Gas Property | Oct 2021 |
| 140126 | ZORRO | McKenzie County, ND | Oil & Gas Property | Nov 2024 |
| 140127 | ZORRO | Washington County, PA | Gas Property | Oct 2024 |
| 140128 | ZORRO 16 | Major County, OK | Oil & Gas Property | Apr 2020 |
| 140129 | ZOS 1-26-35XH | Custer County, OK | Oil & Gas Property | Sep 2024 |
| 140130 | ZPZ 34-196 WRD UNIT | Ward County, TX | Oil & Gas Property | Oct 2024 |
| 140131 | ZPZ 34-211 UNIT | Ward County, TX | Oil & Gas Property | Aug 2024 |
| 140132 | ZPZ FEE | Upton County, TX | Oil & Gas Property | Oct 2024 |
| 140133 | ZPZ FEE 10 | Upton County, TX | Oil & Gas Property | Oct 2024 |
| 140134 | ZR UNIT | McMullen County, TX | Oil & Gas Property | Oct 2024 |
| 140135 | ZRZAVY UNIT | Frio County, TX | Oil & Gas Property | Sep 2024 |
| 140136 | ZSCHECH C UNIT | Burleson County, TX | Oil Property | Sep 2024 |
| 140137 | ZUBER | Jack County, TX | Oil & Gas Property | Oct 2024 |
| 140138 | ZUBER 10-5 1-10H | Jackson County, AR | Gas Property | Jun 2024 |
| 140139 | ZUCINNI CS FED | Campbell County, WY | Gas Property | Feb 2012 |
| 140140 | ZUCK S.V. STATE A2796 | Webb County, TX | Oil & Gas Property | Aug 2024 |
| 140141 | ZUCKERMAN | San Joaquin County, CA | Gas Property | Mar 1990 |
| 140142 | ZUDELL | Noble County, OH | Oil & Gas Property | Dec 2023 |
| 140143 | ZUEB | Gray County, TX | Oil & Gas Property | Oct 2024 |
| 140144 | ZUEGE | Yuma County, CO | Gas Property | Oct 2024 |
| 140145 | ZUEHLKE UNIT | Fayette County, TX | Oil & Gas Property | Oct 2024 |
| 140146 | ZUERCHER | Edwards County, KS | Oil & Gas Property | Sep 2024 |
| 140147 | ZUERCHER | Edwards County, KS | Oil & Gas Property | Aug 2024 |
| 140148 | ZUGG | Pawnee County, KS | Oil & Gas Property | Aug 2024 |
| 140149 | ZUIDERVEEN | Missaukee County, MI | Oil & Gas Property | Nov 2024 |
| 140150 | ZULA 1 | Howard County, TX | Oil & Gas Property | Oct 2024 |
| 140151 | ZULA 18 | Roger Mills County, OK | Oil & Gas Property | Mar 2022 |
| 140152 | ZULCH, SALLY | Madison County, TX | Oil & Gas Property | Sep 2024 |
| 140153 | ZULETTE | Reagan County, TX | Oil & Gas Property | Sep 2024 |
| 140154 | ZULU | Mountrail County, ND | Oil & Gas Property | Nov 2024 |
| 140155 | ZUM 28-13-7 | Canadian County, OK | Oil & Gas Property | Sep 2024 |
| 140156 | ZUM MALLEN | Canadian County, OK | Oil & Gas Property | Feb 2021 |
| 140157 | ZUM MALLEN 1307 | Canadian County, OK | Oil & Gas Property | Sep 2024 |
| 140158 | ZUMA 3 | Loving County, TX | Oil & Gas Property | Oct 2024 |
| 140159 | ZUMA 57-T1-3X10 | Loving County, TX | Oil & Gas Property | Oct 2024 |
| 140160 | ZUMBACH UNIT | Tuscarawas County, OH | Oil & Gas Property | Dec 2023 |
| 140161 | ZUMBRO | Franklin County, MS | Oil & Gas Property | Jul 2021 |
| 140162 | ZUMMALLEN | Kingfisher County, OK | Oil & Gas Property | Sep 2024 |
| 140163 | ZUMPETTA, LAWRENCE ET AL ZMBG | Wetzel County, WV | Oil & Gas Property | Dec 2021 |
| 140164 | ZUMWALT | Colusa County, CA | Gas Property | Jul 2005 |
| 140165 | ZUMWALT | Colusa County, CA | Gas Property | Nov 2024 |
| 140166 | ZUMWALT | Glenn County, CA | Gas Property | Sep 2009 |
| 140167 | ZUMWALT | Glenn County, CA | Gas Property | Sep 1988 |
| 140168 | ZUMWALT | Colusa County, CA | Gas Property | Jun 1988 |
| 140169 | ZUPANEC | Ford County, KS | Oil & Gas Property | Mar 2024 |
| 140170 | ZUPSIC | Allegheny County, PA | Gas Property | Dec 2023 |
| 140171 | ZURBRUGG | Columbiana County, OH | Oil & Gas Property | Dec 2023 |
| 140172 | ZURICH TOWNSITE | Rooks County, KS | Oil Property | Aug 1999 |
| 140173 | ZUTZ 5693 44-12T | Mountrail County, ND | Oil & Gas Property | Nov 2024 |
| 140174 | ZVOLANEK | Ellsworth County, KS | Oil Property | Sep 2024 |
| 140175 | ZVOLANEK | Ellsworth County, KS | Oil Property | Sep 2024 |
| 140176 | ZWAHLEN | Muskingum County, OH | Oil & Gas Property | Dec 2022 |
| 140177 | ZWEIG | Gray County, TX | Gas Property | Apr 2004 |
| 140178 | ZWENKE 34-11H | Dunn County, ND | Oil Property | Nov 2024 |
| 140179 | ZWERNEMANN | Jim Wells County, TX | Oil & Gas Property | Aug 2024 |
| 140180 | ZWEYGARDT | Cheyenne County, KS | Oil & Gas Property | Sep 2024 |
| 140181 | ZWEYGARDT | Cheyenne County, KS | Gas Property | Sep 2024 |
| 140182 | ZWEYGARDT | Cheyenne County, KS | Gas Property | Sep 2024 |
| 140183 | ZWICK | Rice County, KS | Oil Property | Aug 2024 |
| 140184 | ZWILLICH | Ellsworth County, KS | Oil Property | Sep 2024 |
| 140185 | ZWIRN | Yuma County, CO | Gas Property | Oct 2024 |
| 140186 | ZWIRN | Yuma County, CO | Gas Property | Oct 2024 |
| 140187 | ZYBACH | Wheeler County, TX | Oil & Gas Property | Oct 2024 |
| 140188 | ZYBACH | Wheeler County, TX | Oil & Gas Property | Oct 2024 |
| 140189 | ZYBACH 6 | Wheeler County, TX | Oil & Gas Property | Aug 2024 |
| 140190 | ZYBACH-T | Wheeler County, TX | Oil & Gas Property | Oct 2024 |
| 140191 | ZYSK FEDERAL 1-A | Campbell County, WY | Oil & Gas Property | Nov 2024 |
| 140192 | [14744] CASTLE BLACK 6 1 B2CD FEDERAL CO | Lea County, NM | Oil & Gas Property | Oct 2024 |