| 140401 | YTUARTE | Bexar County, TX | Oil & Gas Property | Jun 2025 |
| 140402 | YTURRI-H | Bexar County, TX | Oil & Gas Property | Apr 2006 |
| 140403 | YTURRIA | Hidalgo County, TX | Oil & Gas Property | Feb 2026 |
| 140404 | YTURRIA | Willacy County, TX | Oil & Gas Property | Oct 2025 |
| 140405 | YTURRIA | Hidalgo County, TX | Oil & Gas Property | Feb 2026 |
| 140406 | YTURRIA | Willacy County, TX | Oil & Gas Property | Jan 2025 |
| 140407 | YTURRIA CATTLE CO | Willacy County, TX | Oil & Gas Property | Oct 2025 |
| 140408 | YU UNIT | Tarrant County, TX | Gas Property | Feb 2026 |
| 140409 | YUCCA | Howard County, TX | Oil & Gas Property | Feb 2026 |
| 140410 | YUCCA | Reeves County, TX | Oil & Gas Property | Jan 2026 |
| 140411 | YUCCA STATE | Eddy County, NM | Oil & Gas Property | Feb 2026 |
| 140412 | YUCCA UNIT EB | Burleson County, TX | Oil & Gas Property | Jan 2026 |
| 140413 | YUHASZ | Ashtabula County, OH | Oil & Gas Property | Dec 2024 |
| 140414 | YUKON | Washington County, TX | Oil & Gas Property | Feb 2026 |
| 140415 | YUKON 20 FEDERAL COM | Lea County, NM | Oil & Gas Property | Feb 2026 |
| 140416 | YUKON 3229 | Campbell County, WY | Oil & Gas Property | Feb 2026 |
| 140417 | YUKON 5301 41-12T | McKenzie County, ND | Oil & Gas Property | Feb 2026 |
| 140418 | YUKON GOLD 31 19 FEDERAL COM | Eddy County, NM | Oil & Gas Property | Feb 2026 |
| 140419 | YULE | Caddo County, OK | Oil Property | Apr 2019 |
| 140420 | YULE | Los Angeles County, CA | Oil & Gas Property | Aug 2022 |
| 140421 | YULE 56 | Reeves County, TX | Oil & Gas Property | Feb 2026 |
| 140422 | YULONDA | Ellis County, OK | Oil & Gas Property | Jan 2026 |
| 140423 | YUMA | Pittsburg County, OK | Gas Property | Jan 2026 |
| 140424 | YUMA 3 10 FEDERAL COM | Eddy County, NM | Oil & Gas Property | Feb 2026 |
| 140425 | YUMA 3 10 W | Eddy County, NM | Oil & Gas Property | Feb 2026 |
| 140426 | YUMA 5 STATE | Yuma County, CO | Gas Property | Jan 2026 |
| 140427 | YUMA COUNTY OIL CO | Yuma County, CO | Gas Property | Jan 2026 |
| 140428 | YUNCK | Glacier County, MT | Oil & Gas Property | Mar 2026 |
| 140429 | YUNCK | Glacier County, MT | Oil & Gas Property | Sep 2024 |
| 140430 | YUNCKER | Haskell County, KS | Oil & Gas Property | Dec 2025 |
| 140431 | YUNGWIRTH | Tioga County, PA | Gas Property | Feb 2026 |
| 140432 | YURKANIN 03 014 0 | Bradford County, PA | Gas Property | Feb 2026 |
| 140433 | YUST | Grant County, KS | Gas Property | Dec 2025 |
| 140434 | YUTE UNIT | Allegheny County, PA | Gas Property | Feb 2026 |
| 140435 | YVETTE 1-4H | Billings County, ND | Oil & Gas Property | Feb 2026 |
| 140436 | YVONNE | Susquehanna County, PA | Gas Property | Feb 2026 |
| 140437 | YVONNE | Washita County, OK | Oil & Gas Property | Feb 2026 |
| 140438 | YVONNE 21 FEDERAL | Eddy County, NM | Oil & Gas Property | Feb 2026 |
| 140439 | YVONNE GREEN | Denton County, TX | Oil & Gas Property | Feb 2026 |
| 140440 | YWAM | Las Animas County, CO | Gas Property | Jan 2026 |
| 140441 | YZAGUIRRE | Zapata County, TX | Oil & Gas Property | Feb 2026 |
| 140442 | YZAGUIRRE | Starr County, TX | Oil & Gas Property | Feb 2026 |
| 140443 | YZAGUIRRE | Zapata County, TX | Oil & Gas Property | Feb 2026 |
| 140444 | YZAGUIRRE-LEO | Zapata County, TX | Oil & Gas Property | Feb 2026 |
| 140445 | YZAQUIRRE J | Zapata County, TX | Gas Property | Jan 2026 |
| 140446 | Z ABNEY | Caddo Parish, LA | Oil Property | Dec 2024 |
| 140447 | Z BAR | Barber County, KS | Oil & Gas Property | Dec 2025 |
| 140448 | Z BAR | Woods County, OK | Oil & Gas Property | Aug 2021 |
| 140449 | Z BAR | Barber County, KS | Oil & Gas Property | Dec 2025 |
| 140450 | Z JOE | Le Flore County, OK | Gas Property | Dec 2025 |
| 140451 | Z&T 20 | Loving County, TX | Oil & Gas Property | Feb 2026 |
| 140452 | Z&T 32 | Loving County, TX | Oil & Gas Property | Feb 2026 |
| 140453 | Z&T 42 | Loving County, TX | Oil & Gas Property | Feb 2026 |
| 140454 | Z-28 STATE UNIT | Chaves County, NM | Oil & Gas Property | Jan 2014 |
| 140455 | Z-BAR CATTLE | Barber County, KS | Oil Property | Oct 2023 |
| 140456 | Z-BAR CATTLE | Barber County, KS | Oil & Gas Property | Dec 2025 |
| 140457 | Z-BAR RANCH | Barber County, KS | Oil & Gas Property | Dec 2025 |
| 140458 | Z-BAR RANCH | Barber County, KS | Gas Property | Dec 2020 |
| 140459 | Z-BAR RANCH 1 | Barber County, KS | Gas Property | Jan 2016 |
| 140460 | Z-BARCATTLE | Barber County, KS | Oil & Gas Property | Apr 2011 |
| 140461 | Z. GOULD | Hamilton County, KS | Gas Property | May 2001 |
| 140462 | Z.A (CITY OF ZANESVILLE) | Muskingum County, OH | Oil & Gas Property | Dec 2024 |
| 140463 | ZABKA | Weld County, CO | Oil & Gas Property | Apr 2018 |
| 140464 | ZABKA K 2 | Weld County, CO | Oil & Gas Property | Dec 2020 |
| 140465 | ZABOLOTNY | Billings County, ND | Oil & Gas Property | Feb 2026 |
| 140466 | ZABOLOTNY OBSERVATION | Billings County, ND | Oil & Gas Property | Jul 2024 |
| 140467 | ZACATE UNIT 151-152 | Reeves County, TX | Oil & Gas Property | Feb 2026 |
| 140468 | ZACAWEISTA UNIT | Wilbarger County, TX | Oil & Gas Property | Feb 2026 |
| 140469 | ZACCHAEUS 3 UNIT | Reeves County, TX | Oil & Gas Property | Feb 2026 |
| 140470 | ZACH | Parker County, TX | Oil & Gas Property | Feb 2026 |
| 140471 | ZACH 17 8 FEDERAL COM | Lea County, NM | Oil & Gas Property | Feb 2026 |
| 140472 | ZACH 17 8 W0MD FEDERAL COM | Lea County, NM | Oil & Gas Property | Feb 2026 |
| 140473 | ZACH 17 8 W1 | Lea County, NM | Oil & Gas Property | Feb 2026 |
| 140474 | ZACH 17 FEDERAL | Lea County, NM | Oil & Gas Property | Feb 2026 |
| 140475 | ZACH 17 W0NC FEDERAL | Lea County, NM | Oil & Gas Property | Feb 2026 |
| 140476 | ZACH C 11 | Weld County, CO | Oil & Gas Property | Sep 2016 |
| 140477 | ZACH MCCORMICK FEDERAL COM | Eddy County, NM | Oil & Gas Property | Feb 2026 |
| 140478 | ZACHARY | Clay County, TX | Oil & Gas Property | Feb 2026 |
| 140479 | ZACHARY | Winkler County, TX | Oil & Gas Property | Feb 2026 |
| 140480 | ZACHARY | Montague County, TX | Oil & Gas Property | Feb 2026 |
| 140481 | ZACHARY | San Juan County, NM | Oil & Gas Property | Feb 2026 |
| 140482 | ZACHARY | Caddo County, OK | Oil Property | Oct 2025 |
| 140483 | ZACHERL UNIT 1H | Butler County, PA | Gas Property | Feb 2026 |
| 140484 | ZACHERY 14-10H | McKenzie County, ND | Oil & Gas Property | Feb 2026 |
| 140485 | ZACHGO | Logan County, OK | Oil & Gas Property | Jan 2026 |
| 140486 | ZACHMAN | Ellis County, KS | Oil Property | Dec 2025 |
| 140487 | ZACHMAN | Ellis County, KS | Oil Property | Dec 2025 |
| 140488 | ZACHOR | Toole County, MT | Oil Property | Sep 2024 |
| 140489 | ZACHRY | San Juan County, NM | Oil & Gas Property | Feb 2026 |
| 140490 | ZACHRY | Zapata County, TX | Gas Property | Feb 2026 |
| 140491 | ZACHRY | Webb County, TX | Oil & Gas Property | Feb 2026 |
| 140492 | ZACHRY | Zapata County, TX | Oil & Gas Property | Feb 2026 |
| 140493 | ZACHRY, E. B | Zapata County, TX | Oil & Gas Property | Feb 2026 |
| 140494 | ZACK | Coffey County, KS | Oil Property | Mar 2022 |
| 140495 | ZACKIE WALTERS | Grady County, OK | Oil & Gas Property | Jan 2026 |
| 140496 | ZACOUR | Armstrong County, PA | Gas Property | Dec 2025 |
| 140497 | ZADEL | Weld County, CO | Oil & Gas Property | Nov 2023 |
| 140498 | ZADOW | Richland County, MT | Oil & Gas Property | Feb 2026 |
| 140499 | ZAESKE-ECKOLS | Karnes County, TX | Oil & Gas Property | Feb 2026 |
| 140500 | ZAFT, VALENTINE | Gilmer County, WV | Oil & Gas Property | Dec 2021 |