| 142001 | ZELLER | Seminole County, OK | Oil Property | Apr 2026 |
| 142002 | ZELLERS | Stark County, OH | Oil & Gas Property | Dec 2024 |
| 142003 | ZELLITTI | La Plata County, CO | Gas Property | Mar 2026 |
| 142004 | ZELLMAN | Allegan County, MI | Oil & Gas Property | Apr 2026 |
| 142005 | ZELLMER 27-12-26 1H | Roger Mills County, OK | Oil & Gas Property | Apr 2026 |
| 142006 | ZELOS | Andrews County, TX | Oil & Gas Property | Jun 2021 |
| 142007 | ZEMAN | Trego County, KS | Oil Property | Sep 2025 |
| 142008 | ZEMAN | Kay County, OK | Oil Property | Jan 2023 |
| 142009 | ZEMAN 3-16 | Reeves County, TX | Oil & Gas Property | Apr 2026 |
| 142010 | ZEMAN 40 ALLOC | Reeves County, TX | Oil & Gas Property | Apr 2026 |
| 142011 | ZEMAN-STATE A | Reeves County, TX | Oil & Gas Property | Apr 2026 |
| 142012 | ZEMANEK UNIT EB | Brazos County, TX | Oil & Gas Property | Mar 2026 |
| 142013 | ZENA | Andrews County, TX | Oil & Gas Property | Apr 2026 |
| 142014 | ZENA 1 | Washita County, OK | Oil & Gas Property | Mar 2026 |
| 142015 | ZENGERLE | Dewitt County, TX | Oil & Gas Property | May 2024 |
| 142016 | ZENGERLE WAYNE O | Dewitt County, TX | Oil & Gas Property | Mar 2011 |
| 142017 | ZENITH | Fayette County, PA | Gas Property | Dec 2025 |
| 142018 | ZENITH STATE 19-0-6-43 | Loving County, TX | Oil & Gas Property | Apr 2026 |
| 142019 | ZENITH WATERFLOO | Stafford County, KS | Oil Property | Nov 2025 |
| 142020 | ZENITH-NEWTON | Stark County, ND | Oil & Gas Property | Dec 2014 |
| 142021 | ZENO KING GAS UNIT | Freestone County, TX | Oil & Gas Property | Apr 2026 |
| 142022 | ZENT 14-11SH | Fallon County, MT | Oil & Gas Property | Apr 2026 |
| 142023 | ZENTNER | Richardson County, NE | Oil Property | Dec 2025 |
| 142024 | ZENYATTA 2 | Stephens County, OK | Oil & Gas Property | Mar 2026 |
| 142025 | ZEOLITE FED | Sweetwater County, WY | Oil & Gas Property | Oct 2024 |
| 142026 | ZEON 1807 | Kingfisher County, OK | Oil & Gas Property | Mar 2026 |
| 142027 | ZEPEDA | Caldwell County, TX | Oil & Gas Property | Apr 2026 |
| 142028 | ZEPHYR 1-36H | Mountrail County, ND | Oil & Gas Property | May 2026 |
| 142029 | ZEPHYR FEDERAL | Mountrail County, ND | Oil & Gas Property | May 2026 |
| 142030 | ZEPPELIN 1606 | Kingfisher County, OK | Oil & Gas Property | Mar 2026 |
| 142031 | ZEPPELIN 32 W | Eddy County, NM | Oil & Gas Property | Apr 2026 |
| 142032 | ZEPPO | Lipscomb County, TX | Oil & Gas Property | Apr 2026 |
| 142033 | ZEPPO 5 FEDERAL COM 0 | Lea County, NM | Oil & Gas Property | Apr 2026 |
| 142034 | ZERBST | Niobrara County, WY | Oil & Gas Property | May 2026 |
| 142035 | ZERBST | Niobrara County, WY | Oil & Gas Property | Apr 2026 |
| 142036 | ZERBST | Niobrara County, WY | Oil & Gas Property | Sep 2018 |
| 142037 | ZERBST FE | Niobrara County, WY | Oil & Gas Property | May 2026 |
| 142038 | ZERENER | Sumner County, KS | Oil Property | Apr 2019 |
| 142039 | ZERFAS | Ellis County, KS | Oil Property | Mar 2026 |
| 142040 | ZERGER | Rooks County, KS | Oil Property | Mar 2026 |
| 142041 | ZERGER | Kingman County, KS | Oil & Gas Property | Mar 2026 |
| 142042 | ZERGER | Kingman County, KS | Oil & Gas Property | Mar 2026 |
| 142043 | ZERR | Logan County, KS | Oil Property | Mar 2026 |
| 142044 | ZERR TRUST | Gove County, KS | Oil Property | Mar 2026 |
| 142045 | ZERTUCHE | Starr County, TX | Oil & Gas Property | Apr 2026 |
| 142046 | ZERVOS | Greene County, PA | Oil & Gas Property | Dec 2025 |
| 142047 | ZERWER UNIT | Denton County, TX | Oil & Gas Property | Apr 2026 |
| 142048 | ZETA 20 | Kingfisher County, OK | Oil & Gas Property | May 2016 |
| 142049 | ZETA REED | Big Horn County, MT | Oil Property | Dec 2024 |
| 142050 | ZETAS | Andrews County, TX | Oil & Gas Property | Apr 2026 |
| 142051 | ZETTA | Ector County, TX | Oil & Gas Property | Jun 2016 |
| 142052 | ZETTIE 1-23-26XHM | Custer County, OK | Oil & Gas Property | Mar 2026 |
| 142053 | ZEUS | Madison County, TX | Oil & Gas Property | Apr 2026 |
| 142054 | ZEUS | Seminole County, OK | Oil Property | Mar 2026 |
| 142055 | ZEUS | Westmoreland County, PA | Gas Property | Apr 2026 |
| 142056 | ZEUS 149-93-33D-28H | Dunn County, ND | Oil & Gas Property | May 2026 |
| 142057 | ZEUS 2 11 2BS FEDERAL COM | Lea County, NM | Oil & Gas Property | Apr 2026 |
| 142058 | ZEUS 24 | Lea County, NM | Oil & Gas Property | May 2026 |
| 142059 | ZEUS 7-6 UNIT | Martin County, TX | Oil & Gas Property | Apr 2026 |
| 142060 | ZEUS FE | Campbell County, WY | Oil & Gas Property | Apr 2026 |
| 142061 | ZEUS STATE | Lea County, NM | Oil & Gas Property | May 2026 |
| 142062 | ZEV 22 UNIT 1H | Culberson County, TX | Oil & Gas Property | Apr 2026 |
| 142063 | ZGABAY | Lee County, TX | Oil & Gas Property | Apr 2026 |
| 142064 | ZGABAY A | Dewitt County, TX | Oil & Gas Property | Apr 2026 |
| 142065 | ZGABAY B UNIT | Lee County, TX | Oil Property | Mar 2026 |
| 142066 | ZGABAY EF UNIT | Burleson County, TX | Oil & Gas Property | Mar 2026 |
| 142067 | ZGABAY RAYMOND | Burleson County, TX | Oil & Gas Property | Sep 2020 |
| 142068 | ZGRABIK | Ashtabula County, OH | Oil & Gas Property | Dec 2016 |
| 142069 | ZIA AHZ FEDERAL COM | Eddy County, NM | Oil & Gas Property | Apr 2026 |
| 142070 | ZIA FEDERAL COM | Lea County, NM | Oil & Gas Property | Apr 2026 |
| 142071 | ZIA HILLS UNIT | Eddy County, NM | Oil & Gas Property | May 2026 |
| 142072 | ZIA HILLS UNIT 2532 BS | Lea County, NM | Oil & Gas Property | May 2026 |
| 142073 | ZICKAFOOSE | Upshur County, WV | Gas Property | Dec 2021 |
| 142074 | ZICKAFOOSE, S. H | Ritchie County, WV | Oil & Gas Property | Dec 2021 |
| 142075 | ZICKEFOOSE | Upshur County, WV | Oil & Gas Property | Dec 2021 |
| 142076 | ZICKEFOOSE, CHARLES, ET AL | Upshur County, WV | Gas Property | Dec 2021 |
| 142077 | ZIEBELL | Logan County, OK | Oil & Gas Property | Nov 2014 |
| 142078 | ZIEBOLD, JOHN ET AL | Perry County, KY | Gas Property | Dec 2024 |
| 142079 | ZIEBOLD, W | Knott County, KY | Oil & Gas Property | Dec 2024 |
| 142080 | ZIEGELGRUBER | Oklahoma County, OK | Oil & Gas Property | Apr 2026 |
| 142081 | ZIEGENBALG | Gove County, KS | Oil Property | Mar 2026 |
| 142082 | ZIEGLER | Tarrant County, TX | Gas Property | Apr 2026 |
| 142083 | ZIEGLER | Trego County, KS | Oil Property | Nov 1993 |
| 142084 | ZIEGLER | Warren County, PA | Oil & Gas Property | Dec 2025 |
| 142085 | ZIEGLER | Venango County, PA | Oil Property | Dec 2025 |
| 142086 | ZIEGLER | Sheridan County, KS | Oil Property | Apr 2025 |
| 142087 | ZIEGLER | Toole County, MT | Gas Property | Apr 2026 |
| 142088 | ZIEGLER | Sheridan County, KS | Oil Property | Aug 2023 |
| 142089 | ZIEGLER | Sheridan County, KS | Oil Property | Feb 2026 |
| 142090 | ZIEGLER | Gregg County, TX | Oil & Gas Property | Apr 2026 |
| 142091 | ZIEGLER | Lavaca County, TX | Oil & Gas Property | Aug 2023 |
| 142092 | ZIEGLER | Logan County, CO | Oil & Gas Property | Feb 2026 |
| 142093 | ZIEGLER 03 001 0 | Bradford County, PA | Gas Property | Apr 2026 |
| 142094 | ZIEGLER TRUST | Gove County, KS | Oil Property | Mar 2026 |
| 142095 | ZIEGLERS WASH | Lincoln County, WY | Oil & Gas Property | Apr 2026 |
| 142096 | ZIEGLSCHMID | Robertson County, TX | Oil & Gas Property | Apr 2026 |
| 142097 | ZIEHM | Manistee County, MI | Oil & Gas Property | May 1985 |
| 142098 | ZIELINSKI | Manistee County, MI | Oil & Gas Property | Jun 2023 |
| 142099 | ZIEMER | Weld County, CO | Oil & Gas Property | Apr 2026 |
| 142100 | ZIENTEK UNIT | Dimmit County, TX | Oil & Gas Property | Apr 2026 |