| 50501 | H&H DRILLING CO | Crockett County, TX | Oil & Gas Property | Mar 2026 |
| 50502 | H&H RANCH | Sterling County, TX | Oil & Gas Property | Mar 2026 |
| 50503 | H&H UNIT | Karnes County, TX | Oil & Gas Property | Mar 2026 |
| 50504 | H&H UNIT | Hardeman County, TX | Oil & Gas Property | Mar 2026 |
| 50505 | H&J SEC | Gaines County, TX | Oil & Gas Property | Mar 2026 |
| 50506 | H&M SPELLMAN | Campbell County, WY | Gas Property | Mar 2015 |
| 50507 | H&P RANCH | Bastrop County, TX | Oil & Gas Property | Dec 2025 |
| 50508 | H&S STATE | Eddy County, NM | Oil & Gas Property | Apr 2026 |
| 50509 | H&T RANCH | Goshen County, WY | Oil & Gas Property | Feb 2026 |
| 50510 | H&T RANCH | Goshen County, WY | Oil & Gas Property | May 2025 |
| 50511 | H&W 1707 | Kingfisher County, OK | Oil & Gas Property | Mar 2026 |
| 50512 | H-Y 20 | Weld County, CO | Oil & Gas Property | Sep 2017 |
| 50513 | H-Y 29 | Weld County, CO | Oil & Gas Property | Sep 2017 |
| 50514 | H. & D. 70 | Kern County, CA | Oil & Gas Property | Mar 2026 |
| 50515 | H. & D. 8-6 | Kern County, CA | Oil & Gas Property | Dec 2016 |
| 50516 | H. & D. 8-8 | Kern County, CA | Oil & Gas Property | Dec 2020 |
| 50517 | H. & D. 80 | Kern County, CA | Oil & Gas Property | Mar 2026 |
| 50518 | H. & D. 90 | Kern County, CA | Oil & Gas Property | Mar 2026 |
| 50519 | H. AND H. NORDMARK | Bottineau County, ND | Oil Property | Dec 1990 |
| 50520 | H. B. 3 FEDERAL | Eddy County, NM | Oil & Gas Property | Jun 2020 |
| 50521 | H. B. AUSTIN | Ashland County, OH | Oil Property | Dec 2025 |
| 50522 | H. BERGSTROM | Bottineau County, ND | Oil & Gas Property | Apr 2026 |
| 50523 | H. BLACKSTONE | Brazoria County, TX | Oil & Gas Property | Mar 2026 |
| 50524 | H. BORSTAD | Williams County, ND | Oil & Gas Property | Apr 2026 |
| 50525 | H. BROWN | Panola County, TX | Oil & Gas Property | Mar 2026 |
| 50526 | H. C. WEAR UNIT | Kearny County, KS | Gas Property | Feb 2026 |
| 50527 | H. D. STEVENSON | Woodson County, KS | Oil Property | Feb 2026 |
| 50528 | H. D. THOMAS ET AL GAS UNIT | Freestone County, TX | Oil & Gas Property | Mar 2026 |
| 50529 | H. DARST | Gallia County, OH | Oil & Gas Property | Dec 2025 |
| 50530 | H. DAVIDSON | Williams County, ND | Oil & Gas Property | Apr 2026 |
| 50531 | H. DENTON | Howard County, TX | Oil & Gas Property | Mar 2026 |
| 50532 | H. ELLIOTT | Haskell County, KS | Gas Property | Feb 2026 |
| 50533 | H. F. SCHMIDT 1 | Kiowa County, KS | Oil & Gas Property | Feb 2026 |
| 50534 | H. F. SUTTON | Morton County, KS | Gas Property | Feb 2026 |
| 50535 | H. FALLON | Geauga County, OH | Oil & Gas Property | Dec 2025 |
| 50536 | H. FRY | Monroe County, OH | Oil & Gas Property | Dec 2025 |
| 50537 | H. G. ADAMS | Meade County, KS | Oil & Gas Property | Jan 2003 |
| 50538 | H. G. BROWN GAS UNIT | Finney County, KS | Gas Property | Feb 2026 |
| 50539 | H. H. BROWNELL UNIT | Stevens County, KS | Gas Property | Feb 2026 |
| 50540 | H. H. DUNLAP | Seward County, KS | Gas Property | Feb 2026 |
| 50541 | H. H. JANTZ | Grant County, KS | Gas Property | Feb 2026 |
| 50542 | H. H. WULFEMEYER | Stevens County, KS | Oil Property | Feb 2026 |
| 50543 | H. HARLAN BETHUNE 01 | Live Oak County, TX | Oil & Gas Property | Mar 2026 |
| 50544 | H. J. GILBERT | Stevens County, KS | Gas Property | Feb 2026 |
| 50545 | H. J. VOLLMER | Perry County, OH | Oil Property | Dec 1986 |
| 50546 | H. KAMMERDIENER | Armstrong County, PA | Gas Property | Dec 2025 |
| 50547 | H. L. & P. UNIT 1 | Leon County, TX | Oil & Gas Property | Mar 2020 |
| 50548 | H. L. CUDNEY | Grant County, KS | Gas Property | Feb 2026 |
| 50549 | H. L. THRELK | Haskell County, KS | Gas Property | Feb 2026 |
| 50550 | H. M. JONES GAS UNIT 1 | Robertson County, TX | Oil & Gas Property | Mar 2026 |
| 50551 | H. M. POTTER | Wise County, TX | Oil & Gas Property | Mar 2026 |
| 50552 | H. MCCOY | Haskell County, KS | Gas Property | Feb 2026 |
| 50553 | H. MCNISH | Geauga County, OH | Oil & Gas Property | Dec 2025 |
| 50554 | H. MOCZYGEMBA | Karnes County, TX | Oil & Gas Property | Mar 2026 |
| 50555 | H. MUELLER 18A | Dewitt County, TX | Oil & Gas Property | Mar 2026 |
| 50556 | H. MURPHY | Allen County, KS | Oil Property | Mar 2021 |
| 50557 | H. O. STOCKWELL GAS UNIT | Finney County, KS | Gas Property | Feb 2026 |
| 50558 | H. P. BARTON GAS UNIT | Henderson County, TX | Oil & Gas Property | Mar 2026 |
| 50559 | H. P. BOYNE | Santa Barbara County, CA | Oil & Gas Property | Mar 2026 |
| 50560 | H. P. UNRUH | McPherson County, KS | Oil Property | Nov 2025 |
| 50561 | H. PIATT | Monroe County, OH | Oil & Gas Property | Dec 2025 |
| 50562 | H. PIATT/PRYOR/GREEN | Monroe County, OH | Oil & Gas Property | Dec 2025 |
| 50563 | H. PUT | Campbell County, WY | Gas Property | Dec 2010 |
| 50564 | H. ROARK ET AL | Washington County, OH | Oil & Gas Property | Dec 2018 |
| 50565 | H. ROTH | Barton County, KS | Oil & Gas Property | Nov 2025 |
| 50566 | H. T. BURR UNIT | Grant County, KS | Gas Property | Feb 2026 |
| 50567 | H. T. OLIVER | Finney County, KS | Gas Property | Feb 2026 |
| 50568 | H. V. TUCKER | Seward County, KS | Gas Property | Feb 2026 |
| 50569 | H. VOISE | Noble County, OK | Oil & Gas Property | Nov 2017 |
| 50570 | H. W. COBERLY | Gove County, KS | Oil Property | Feb 2026 |
| 50571 | H. W. HUGHES | Lyon County, KS | Oil Property | Jan 2026 |
| 50572 | H. W. LOEWEN | Grant County, KS | Gas Property | Feb 2026 |
| 50573 | H. WILSON UNIT | Stevens County, KS | Gas Property | Feb 2026 |
| 50574 | H.&T.C.FEE SEC. 19 | Liberty County, TX | Oil & Gas Property | Mar 2026 |
| 50575 | H.A. LAMMONS | Yazoo County, MS | Oil & Gas Property | Nov 2008 |
| 50576 | H.A. STILES | Williamson County, TX | Oil Property | Mar 2026 |
| 50577 | H.A.CHAP | Pittsburg County, OK | Gas Property | Mar 2026 |
| 50578 | H.A.SMITH | Kingfisher County, OK | Oil & Gas Property | Jun 2024 |
| 50579 | H.ANZALDUA-HEDTKE SA | Karnes County, TX | Oil & Gas Property | Mar 2026 |
| 50580 | H.B. KINSEY | Stark County, OH | Oil & Gas Property | Dec 2024 |
| 50581 | H.B. MORRISON | Ward County, TX | Oil & Gas Property | Mar 2026 |
| 50582 | H.B. MORRISON B | Ward County, TX | Oil & Gas Property | Mar 2026 |
| 50583 | H.B.FEE | Orange County, CA | Oil & Gas Property | Feb 2026 |
| 50584 | H.C. GILMER #A-22-1 | Mobile County, AL | Oil & Gas Property | Apr 1993 |
| 50585 | H.C. SCHWARTZ | Monroe County, OH | Oil & Gas Property | Dec 2019 |
| 50586 | H.D. BROWNING GAS UNIT NO. 1 | Panola County, TX | Oil & Gas Property | Mar 2026 |
| 50587 | H.D. TOWNE UNIT | San Joaquin County, CA | Gas Property | Oct 1979 |
| 50588 | H.E. CLARK FEE "A" (M-594) 1 | Clearfield County, PA | Gas Property | Dec 2025 |
| 50589 | H.E. TUBB | Howard County, TX | Oil & Gas Property | Mar 2026 |
| 50590 | H.E.RICHTER | Atascosa County, TX | Oil & Gas Property | Mar 2026 |
| 50591 | H.G ADAMS | Beaver County, OK | Oil & Gas Property | Feb 2026 |
| 50592 | H.G. ADAMS | Meade County, KS | Oil & Gas Property | Feb 2026 |
| 50593 | H.H. & F. 1 | Kern County, CA | Oil & Gas Property | Feb 2026 |
| 50594 | H.H. & F. 2 | Kern County, CA | Oil & Gas Property | Feb 2026 |
| 50595 | H.H. & F. 3 | Kern County, CA | Oil & Gas Property | Feb 2026 |
| 50596 | H.H. & F. 4 | Kern County, CA | Oil & Gas Property | Feb 2026 |
| 50597 | H.H. WILLIAMS | Garfield County, OK | Oil & Gas Property | Mar 2026 |
| 50598 | H.HENDERSON | Montgomery County, KS | Gas Property | May 2014 |
| 50599 | H.I. PALAFOX | Webb County, TX | Oil & Gas Property | Mar 2026 |
| 50600 | H.J. BRICE | Scurry County, TX | Oil & Gas Property | Oct 2019 |