| 52401 | HAPE | Sheridan County, WY | Gas Property | Mar 2014 |
| 52402 | HAPGOOD | Clay County, TX | Oil & Gas Property | May 2026 |
| 52403 | HAPGOOD | Clay County, TX | Oil & Gas Property | May 2026 |
| 52404 | HAPPY CROW | Caddo Parish, LA | Oil & Gas Property | Apr 1988 |
| 52405 | HAPPY HILLMAN | Montmorency County, MI | Gas Property | May 2026 |
| 52406 | HAPPY HILLS UNIT | Johnson County, TX | Gas Property | May 2026 |
| 52407 | HAPPY HIPPO | Ward County, TX | Oil & Gas Property | May 2026 |
| 52408 | HAPPY HOLLOW | Reno County, KS | Oil & Gas Property | Apr 2026 |
| 52409 | HAPPY JACK | Reeves County, TX | Oil & Gas Property | May 2026 |
| 52410 | HAPPY SPRABERRY | Garza County, TX | Oil & Gas Property | May 2026 |
| 52411 | HAPPY SPRINGS | Fremont County, WY | Oil & Gas Property | May 2026 |
| 52412 | HAPPY THOU | Hot Springs County, WY | Oil & Gas Property | Jun 2026 |
| 52413 | HAPPY TRACKS | Midland County, TX | Oil & Gas Property | May 2026 |
| 52414 | HAPPY VALLEY | Eddy County, NM | Oil & Gas Property | Apr 2026 |
| 52415 | HAPPY VALLEY | Seldovia Quadrangle, AK | Gas Property | Feb 2026 |
| 52416 | HAPPYLAND | Pontotoc County, OK | Oil & Gas Property | Oct 2019 |
| 52417 | HAR-REYNOLDS | Karnes County, TX | Oil & Gas Property | May 2026 |
| 52418 | HARACZ AMO FEDERAL | Eddy County, NM | Oil & Gas Property | May 2026 |
| 52419 | HARALAMBOUS 03 074 | Bradford County, PA | Gas Property | May 2026 |
| 52420 | HARALDSON | Woodson County, KS | Oil Property | Apr 2026 |
| 52421 | HARALSON | Stephens County, TX | Oil & Gas Property | May 2026 |
| 52422 | HARALSON 1 | Smith County, TX | Oil & Gas Property | May 2026 |
| 52423 | HARALSON BEEFMASTER | Zapata County, TX | Gas Property | Feb 2026 |
| 52424 | HARAM | Bottineau County, ND | Oil & Gas Property | May 2026 |
| 52425 | HARAMBE 32 | Glasscock County, TX | Oil & Gas Property | May 2026 |
| 52426 | HARANDA | Bay County, MI | Oil Property | Dec 2025 |
| 52427 | HARBACEK | Ellsworth County, KS | Oil Property | Apr 2026 |
| 52428 | HARBAUGH | Barber County, KS | Oil & Gas Property | Apr 2026 |
| 52429 | HARBAUGH | Shackelford County, TX | Oil & Gas Property | Apr 2026 |
| 52430 | HARBAUGH | Barber County, KS | Oil & Gas Property | Apr 2026 |
| 52431 | HARBAUGH | Ochiltree County, TX | Oil & Gas Property | May 2026 |
| 52432 | HARBAUGH | Barber County, KS | Oil & Gas Property | Sep 2025 |
| 52433 | HARBAUGH | Russell County, KS | Oil Property | Feb 2026 |
| 52434 | HARBAUGH | Portage County, OH | Oil & Gas Property | Dec 2025 |
| 52435 | HARBAUGH | Barber County, KS | Oil & Gas Property | Apr 2026 |
| 52436 | HARBAUGH | Kearny County, KS | Gas Property | Apr 2026 |
| 52437 | HARBAUGH | Russell County, KS | Oil Property | Apr 2026 |
| 52438 | HARBER | Seminole County, OK | Oil & Gas Property | Apr 2026 |
| 52439 | HARBER | Archer County, TX | Oil & Gas Property | Apr 2026 |
| 52440 | HARBER MOLLIE | Archer County, TX | Oil & Gas Property | Apr 2026 |
| 52441 | HARBER, GRACE T | Runnels County, TX | Gas Property | Apr 2026 |
| 52442 | HARBERT | Kanawha County, WV | Oil & Gas Property | Oct 2021 |
| 52443 | HARBERT | Harrison County, WV | Oil & Gas Property | Dec 2021 |
| 52444 | HARBERT | Harrison County, WV | Oil & Gas Property | Dec 2021 |
| 52445 | HARBIN | Saline County, KS | Oil Property | Apr 2026 |
| 52446 | HARBIN | Eastland County, TX | Oil & Gas Property | Sep 2024 |
| 52447 | HARBISON | Miami County, KS | Oil Property | Apr 2026 |
| 52448 | HARBISON | Washington County, PA | Gas Property | May 2026 |
| 52449 | HARBISON | Indiana County, PA | Gas Property | Dec 2025 |
| 52450 | HARBISON | Archer County, TX | Oil & Gas Property | May 2026 |
| 52451 | HARBISON | Noble County, OK | Oil & Gas Property | May 2014 |
| 52452 | HARBISON WALKER | Clinton County, PA | Gas Property | Dec 2025 |
| 52453 | HARBISON-FISCHER | Tarrant County, TX | Oil & Gas Property | May 2026 |
| 52454 | HARBISON-WALKER | Clearfield County, PA | Gas Property | Dec 2025 |
| 52455 | HARBISON-WALKER | Clearfield County, PA | Gas Property | Dec 2025 |
| 52456 | HARBOLD | Eddy County, NM | Oil & Gas Property | Apr 2026 |
| 52457 | HARBOLT(WINGER) FIELD UNIT | Cooke County, TX | Oil & Gas Property | May 2026 |
| 52458 | HARBORDT | Santa Barbara County, CA | Oil & Gas Property | Jan 2021 |
| 52459 | HARBOUR | Tarrant County, TX | Oil & Gas Property | Sep 2024 |
| 52460 | HARBOUR | Hutchinson County, TX | Oil & Gas Property | May 2026 |
| 52461 | HARBOUR 5 | Williams County, ND | Oil & Gas Property | May 2026 |
| 52462 | HARBOURTOWN FED | Duchesne County, UT | Oil & Gas Property | Mar 2013 |
| 52463 | HARCROW | Leon County, TX | Oil & Gas Property | May 2026 |
| 52464 | HARD AS NAILS AMD ST | Chaves County, NM | Gas Property | May 2026 |
| 52465 | HARD DEAL | San Juan County, NM | Gas Property | Sep 2019 |
| 52466 | HARD KNOX 0304 | Garvin County, OK | Oil & Gas Property | Apr 2026 |
| 52467 | HARDAGE | McClain County, OK | Oil & Gas Property | Oct 2020 |
| 52468 | HARDAGE & WILSON | Ward County, TX | Oil & Gas Property | May 2026 |
| 52469 | HARDAWAY | Webster Parish, LA | Oil Property | Jan 2025 |
| 52470 | HARDAWAY | Adams County, CO | Oil Property | Dec 1999 |
| 52471 | HARDBARGER | Ritchie County, WV | Oil & Gas Property | Dec 2021 |
| 52472 | HARDBARGER | Ritchie County, WV | Oil & Gas Property | Dec 2021 |
| 52473 | HARDBERGER | Gaines County, TX | Oil & Gas Property | May 2026 |
| 52474 | HARDCASTLE | Allen County, KY | Oil Property | Dec 2024 |
| 52475 | HARDCASTLE | Jackson County, MI | Oil & Gas Property | May 2026 |
| 52476 | HARDCASTLE | Johnson County, TX | Oil & Gas Property | May 2026 |
| 52477 | HARDCASTLE | Oklahoma County, OK | Oil Property | May 2026 |
| 52478 | HARDCASTLE STATE 27-34-39 | Reeves County, TX | Oil & Gas Property | May 2026 |
| 52479 | HARDEE | Mitchell County, TX | Oil & Gas Property | May 2026 |
| 52480 | HARDEMAN | Caldwell County, TX | Oil & Gas Property | May 2026 |
| 52481 | HARDEMAN | Caldwell County, TX | Oil & Gas Property | May 2026 |
| 52482 | HARDEMAN | Lee County, TX | Oil & Gas Property | Apr 2026 |
| 52483 | HARDEMAN 1 | Madison County, MS | Oil Property | May 2026 |
| 52484 | HARDEMAN DOROTHY JEAN | Denton County, TX | Gas Property | May 2026 |
| 52485 | HARDEMAN-HARDEMAN (SA) A 1H | Denton County, TX | Gas Property | May 2026 |
| 52486 | HARDEMAN-TURNER UNIT | Caldwell County, TX | Oil & Gas Property | May 2026 |
| 52487 | HARDEN | Alfalfa County, OK | Oil & Gas Property | Apr 2026 |
| 52488 | HARDEN | Greene County, PA | Gas Property | May 2026 |
| 52489 | HARDEN | Hughes County, OK | Oil & Gas Property | May 2026 |
| 52490 | HARDEN | Roger Mills County, OK | Oil & Gas Property | Apr 2026 |
| 52491 | HARDEN | Clark County, KS | Oil & Gas Property | Jun 2024 |
| 52492 | HARDEN FARMS ROG230H | Greene County, PA | Gas Property | May 2026 |
| 52493 | HARDER | Chase County, KS | Gas Property | Aug 2021 |
| 52494 | HARDER | Glacier County, MT | Gas Property | Aug 2013 |
| 52495 | HARDER | Allegany County, NY | Oil Property | Dec 2022 |
| 52496 | HARDER BROUSSARD UNIT | Jefferson County, TX | Oil & Gas Property | May 2026 |
| 52497 | HARDER L | Allegany County, NY | Gas Property | Dec 2000 |
| 52498 | HARDESTY | Sheridan County, KS | Oil Property | Jan 2008 |
| 52499 | HARDESTY | Red Willow County, NE | Oil Property | Dec 2025 |
| 52500 | HARDESTY | Sumner County, KS | Oil Property | Feb 2026 |