| 401 | HACKLER | Pittsburg County, OK | Gas Property | Feb 2025 |
| 402 | HACKNEY | Karnes County, TX | Oil & Gas Property | Feb 2025 |
| 403 | HACKNEY | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 404 | HACKNEY | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 405 | HACKNEY | Latimer County, OK | Gas Property | Feb 2025 |
| 406 | HACKWORTH | Johnson County, KY | Oil & Gas Property | Dec 2023 |
| 407 | HACKWORTH | Floyd County, KY | Gas Property | Dec 2023 |
| 408 | HACKWORTH, JODY | Floyd County, KY | Gas Property | Jun 2015 |
| 409 | HADA | Woods County, OK | Oil & Gas Property | Feb 2025 |
| 410 | HADA | Woods County, OK | Oil & Gas Property | Feb 2025 |
| 411 | HADAR 10 FEDERAL COM | Eddy County, NM | Oil & Gas Property | Mar 2025 |
| 412 | HADAWAY | Manistee County, MI | Oil & Gas Property | Feb 2025 |
| 413 | HADDAD | Harrison County, TX | Oil & Gas Property | Mar 2025 |
| 414 | HADDAD | Kern County, CA | Oil & Gas Property | Apr 2025 |
| 415 | HADDAD, G | Harrison County, TX | Oil & Gas Property | Jun 2012 |
| 416 | HADDEN | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 417 | HADDEN KATHLEEN | Pecos County, TX | Oil & Gas Property | Mar 2025 |
| 418 | HADDOCK | Ellis County, KS | Oil Property | Feb 2025 |
| 419 | HADDOCK | Tulsa County, OK | Gas Property | Oct 2018 |
| 420 | HADDOCK E. L | Denton County, TX | Oil & Gas Property | Mar 2025 |
| 421 | HADDOCK, E.A | Martin County, TX | Oil & Gas Property | Mar 2025 |
| 422 | HADDON | Barton County, KS | Oil & Gas Property | Nov 2024 |
| 423 | HADDON | Rice County, KS | Oil Property | Jan 2025 |
| 424 | HADDON | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 425 | HADDOX | Burleson County, TX | Oil & Gas Property | Feb 2025 |
| 426 | HADDOX | Ritchie County, WV | Oil & Gas Property | Aug 2021 |
| 427 | HADDOX | Doddridge County, WV | Gas Property | Dec 2021 |
| 428 | HADDOX | Okfuskee County, OK | Oil & Gas Property | Jul 2010 |
| 429 | HADDOX, D | Ritchie County, WV | Oil & Gas Property | Dec 2021 |
| 430 | HADDOX, DEWEY | Ritchie County, WV | Oil & Gas Property | Dec 2021 |
| 431 | HADES | Converse County, WY | Oil & Gas Property | Mar 2025 |
| 432 | HADES | Andrews County, TX | Oil & Gas Property | Feb 2025 |
| 433 | HADES 22102 2 STATE COM | Eddy County, NM | Oil & Gas Property | Apr 2025 |
| 434 | HADFIELD | Lea County, NM | Oil & Gas Property | Jul 2009 |
| 435 | HADLEY | Hutchinson County, TX | Oil & Gas Property | Aug 2024 |
| 436 | HADLEY | Union County, AR | Oil & Gas Property | Dec 2024 |
| 437 | HADLEY | Johnson County, TX | Oil & Gas Property | Mar 2025 |
| 438 | HADLEY | Bowman County, ND | Oil & Gas Property | Apr 2025 |
| 439 | HADLEY | Ellis County, KS | Oil Property | Feb 2025 |
| 440 | HADLEY 34-31TFH | Dunn County, ND | Oil & Gas Property | Apr 2025 |
| 441 | HADLEY AGNES ETAL | Washington County, OH | Oil & Gas Property | Dec 2024 |
| 442 | HADLEY BOMBARGER UNIT | Tarrant County, TX | Oil & Gas Property | Mar 2025 |
| 443 | HADLEY UNIT | Johnson County, TX | Oil & Gas Property | Aug 2020 |
| 444 | HADLEY, CLARENCE | Tyler County, WV | Oil & Gas Property | Dec 2021 |
| 445 | HADLEY, KIRK KIRK HADLEY TYL | Tyler County, WV | Oil & Gas Property | Dec 2021 |
| 446 | HADORN | Carroll County, OH | Oil & Gas Property | Dec 2024 |
| 447 | HADRIAN | Andrews County, TX | Oil & Gas Property | Feb 2025 |
| 448 | HADSON FEDERAL | Eddy County, NM | Oil & Gas Property | Feb 2011 |
| 449 | HADWIGER | Ochiltree County, TX | Oil & Gas Property | Feb 2025 |
| 450 | HADWIGER | Alfalfa County, OK | Oil & Gas Property | Mar 2025 |
| 451 | HAECKER | Guadalupe County, TX | Oil & Gas Property | Aug 2022 |
| 452 | HAECKER | Bexar County, TX | Oil Property | Mar 2025 |
| 453 | HAERING-MARTIN | Webb County, TX | Oil & Gas Property | Mar 2025 |
| 454 | HAESE | Atascosa County, TX | Oil & Gas Property | Apr 2021 |
| 455 | HAESSLY HARDWOOD | Doddridge County, WV | Oil & Gas Property | Dec 2021 |
| 456 | HAESSLY HARDWOOD LUMBER SALES | Washington County, OH | Oil & Gas Property | Dec 2024 |
| 457 | HAESSLY LAND& TIMBER | Doddridge County, WV | Oil & Gas Property | Dec 2021 |
| 458 | HAFEMAN | Russell County, KS | Oil Property | Feb 2025 |
| 459 | HAFERNIC | Eastland County, TX | Oil & Gas Property | Apr 1998 |
| 460 | HAFFNER | Richland County, MT | Oil & Gas Property | Mar 2025 |
| 461 | HAFFNER | Sheridan County, KS | Oil Property | Feb 2025 |
| 462 | HAFFNER | Kingfisher County, OK | Oil & Gas Property | Feb 2025 |
| 463 | HAFFNER 1 | Divide County, ND | Oil & Gas Property | Apr 2025 |
| 464 | HAFLICH | Finney County, KS | Oil Property | Oct 2014 |
| 465 | HAFLINGER 20 | Reeves County, TX | Oil & Gas Property | Mar 2025 |
| 466 | HAFLINGER 22 27 FEDERAL COM | Lea County, NM | Oil & Gas Property | Mar 2025 |
| 467 | HAFNER | Noble County, OK | Oil & Gas Property | Feb 2025 |
| 468 | HAFNER 34-23H | Dunn County, ND | Oil & Gas Property | Apr 2025 |
| 469 | HAGAMAN | Eastland County, TX | Oil & Gas Property | Mar 2025 |
| 470 | HAGAMAN | Texas County, OK | Gas Property | Feb 2025 |
| 471 | HAGAMAN | Stevens County, KS | Gas Property | Feb 2025 |
| 472 | HAGAMAN | Russell County, KS | Oil Property | Feb 2025 |
| 473 | HAGAMAN UNIT | Madison County, TX | Oil & Gas Property | Feb 2025 |
| 474 | HAGAN | Barber County, KS | Oil & Gas Property | Feb 2025 |
| 475 | HAGAN | Karnes County, TX | Oil & Gas Property | Mar 2025 |
| 476 | HAGAN & STEWART | Nueces County, TX | Oil & Gas Property | Mar 2025 |
| 477 | HAGAN REICHLEY | Perry County, OH | Oil & Gas Property | Dec 2024 |
| 478 | HAGAN, PAUL | Henderson County, KY | Oil Property | Dec 2023 |
| 479 | HAGAN, RAYMOND | Union County, KY | Oil Property | Dec 2023 |
| 480 | HAGAN, W | Union County, KY | Oil Property | Dec 2022 |
| 481 | HAGAN, WILLIAM | Daviess County, KY | Oil Property | Oct 2012 |
| 482 | HAGANS | Ness County, KS | Oil Property | Feb 2025 |
| 483 | HAGANS | Lane County, KS | Oil Property | Jul 2024 |
| 484 | HAGANSPORT UNIT | Franklin County, TX | Oil & Gas Property | Feb 2025 |
| 485 | HAGAR | Kent County, TX | Oil Property | Mar 2025 |
| 486 | HAGAR | Eastland County, TX | Oil & Gas Property | Jun 2019 |
| 487 | HAGAR 5-64 15-16-1BHZ | Arapahoe County, CO | Oil & Gas Property | Apr 2025 |
| 488 | HAGBERG | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 489 | HAGBERRY 9 STATE COM | Lea County, NM | Oil & Gas Property | Mar 2025 |
| 490 | HAGELE | Major County, OK | Oil & Gas Property | Mar 2025 |
| 491 | HAGELGANTZ | Ness County, KS | Oil Property | Dec 1998 |
| 492 | HAGELSTEIN | Crockett County, TX | Oil & Gas Property | Mar 2025 |
| 493 | HAGEMAN | Converse County, WY | Oil & Gas Property | Sep 2021 |
| 494 | HAGEMAN | Converse County, WY | Oil & Gas Property | Mar 2025 |
| 495 | HAGEMAN | Converse County, WY | Oil & Gas Property | Apr 2025 |
| 496 | HAGEMAN | Beaver County, OK | Oil & Gas Property | Feb 2025 |
| 497 | HAGEMAN | Rooks County, KS | Oil Property | Jan 2025 |
| 498 | HAGEMAN | Kingman County, KS | Gas Property | Feb 2025 |
| 499 | HAGEMANN | Yuma County, CO | Gas Property | Mar 2025 |
| 500 | HAGEMEISTER USX AA | Weld County, CO | Oil & Gas Property | Jan 2021 |