| 144501 | ZUM MALLEN 1307 | Canadian County, OK | Oil & Gas Property | Aug 2025 |
| 144502 | ZUMA 3 | Loving County, TX | Oil & Gas Property | Sep 2025 |
| 144503 | ZUMA 57-T1-3X10 | Loving County, TX | Oil & Gas Property | Sep 2025 |
| 144504 | ZUMBACH UNIT | Tuscarawas County, OH | Oil & Gas Property | Dec 2024 |
| 144505 | ZUMBRO | Franklin County, MS | Oil & Gas Property | Jul 2021 |
| 144506 | ZUMMALLEN | Kingfisher County, OK | Oil & Gas Property | Aug 2025 |
| 144507 | ZUMPETTA, LAWRENCE ET AL ZMBG | Wetzel County, WV | Oil & Gas Property | Dec 2021 |
| 144508 | ZUMWALT | Colusa County, CA | Gas Property | Oct 2025 |
| 144509 | ZUMWALT | Stephens County, OK | Oil & Gas Property | Aug 2025 |
| 144510 | ZUMWALT | Colusa County, CA | Gas Property | Jul 2005 |
| 144511 | ZUMWALT | Colusa County, CA | Gas Property | Jun 1988 |
| 144512 | ZUMWALT | Glenn County, CA | Gas Property | Sep 2009 |
| 144513 | ZUMWALT | Glenn County, CA | Gas Property | Sep 1988 |
| 144514 | ZUNKER UNIT | Karnes County, TX | Oil & Gas Property | Sep 2025 |
| 144515 | ZUPSIC | Allegheny County, PA | Gas Property | Dec 2024 |
| 144516 | ZURBRUGG | Columbiana County, OH | Oil & Gas Property | Dec 2024 |
| 144517 | ZURICH TOWNSITE | Rooks County, KS | Oil Property | Aug 1999 |
| 144518 | ZVOLANEK | Ellsworth County, KS | Oil Property | Jun 2025 |
| 144519 | ZVOLANEK | Ellsworth County, KS | Oil Property | Jun 2025 |
| 144520 | ZWAHLEN | Muskingum County, OH | Oil & Gas Property | Dec 2022 |
| 144521 | ZWEIFEL HENRY 1H | Hood County, TX | Oil & Gas Property | Aug 2025 |
| 144522 | ZWEIG | Gray County, TX | Gas Property | Apr 2004 |
| 144523 | ZWENKE 34-11H | Dunn County, ND | Oil & Gas Property | Oct 2025 |
| 144524 | ZWERNEMANN | Jim Wells County, TX | Oil & Gas Property | Mar 2025 |
| 144525 | ZWEYGARDT | Cheyenne County, KS | Oil & Gas Property | Jun 2025 |
| 144526 | ZWEYGARDT | Cheyenne County, KS | Gas Property | Jun 2025 |
| 144527 | ZWEYGARDT | Cheyenne County, KS | Gas Property | Jun 2025 |
| 144528 | ZWICK | Rice County, KS | Oil Property | May 2025 |
| 144529 | ZWILLICH | Ellsworth County, KS | Oil Property | Jun 2025 |
| 144530 | ZWIRN | Yuma County, CO | Gas Property | Sep 2025 |
| 144531 | ZWIRN | Yuma County, CO | Gas Property | Sep 2025 |
| 144532 | ZYBACH | Wheeler County, TX | Oil & Gas Property | Sep 2025 |
| 144533 | ZYBACH | Wheeler County, TX | Oil & Gas Property | Sep 2025 |
| 144534 | ZYBACH 6 | Wheeler County, TX | Oil & Gas Property | Feb 2025 |
| 144535 | ZYBACH-T | Wheeler County, TX | Oil & Gas Property | Sep 2025 |
| 144536 | ZYSK FEDERAL 1-A | Campbell County, WY | Oil & Gas Property | Oct 2025 |
| 144537 | [14744] CASTLE BLACK 6 1 B2CD FEDERAL CO | Lea County, NM | Oil & Gas Property | Sep 2025 |
| 144538 | `IDEWATER OIL CO. FEE | Liberty County, TX | Oil & Gas Property | Jul 2025 |