| 41401 | FIXICO | Creek County, OK | Oil Property | Oct 2025 |
| 41402 | FIXICO | Okfuskee County, OK | Oil Property | Nov 2014 |
| 41403 | FIZZELL | Stanton County, KS | Gas Property | Feb 2026 |
| 41404 | FJELSTAD | McKenzie County, ND | Oil & Gas Property | Oct 1997 |
| 41405 | FL GREENS | Weld County, CO | Oil & Gas Property | Apr 2026 |
| 41406 | FL GREENS FEDERAL | Weld County, CO | Oil & Gas Property | Apr 2026 |
| 41407 | FL MOUNTAIN | Weld County, CO | Oil & Gas Property | Apr 2026 |
| 41408 | FLACHE | Jones County, TX | Oil & Gas Property | Jan 2026 |
| 41409 | FLACHE 34-39 A UNIT | Howard County, TX | Oil & Gas Property | Mar 2026 |
| 41410 | FLACHE MITCHELL | Terry County, TX | Oil & Gas Property | Feb 2026 |
| 41411 | FLACK | Weld County, CO | Oil & Gas Property | Apr 2019 |
| 41412 | FLACK | Tioga County, PA | Gas Property | Mar 2026 |
| 41413 | FLACK | Holmes County, OH | Oil & Gas Property | Dec 2021 |
| 41414 | FLACK J A | Washington County, PA | Oil Property | Dec 2010 |
| 41415 | FLACK O | Knox County, OH | Oil Property | Dec 2018 |
| 41416 | FLADAGER | Daniels County, MT | Oil Property | May 2002 |
| 41417 | FLADELAND | Mountrail County, ND | Oil & Gas Property | Apr 2026 |
| 41418 | FLADELAND | Mountrail County, ND | Oil & Gas Property | Apr 2026 |
| 41419 | FLADER | Adams County, CO | Oil & Gas Property | Feb 2003 |
| 41420 | FLAG RANCH | Ector County, TX | Oil & Gas Property | Mar 2026 |
| 41421 | FLAGE | Toole County, MT | Gas Property | Apr 2026 |
| 41422 | FLAGG USA 11-3H | Mountrail County, ND | Oil & Gas Property | Apr 2026 |
| 41423 | FLAGLER | Rooks County, KS | Oil Property | Feb 2026 |
| 41424 | FLAGLER | Grady County, OK | Oil & Gas Property | Oct 2019 |
| 41425 | FLAGLER 8 FEDERAL | Lea County, NM | Oil & Gas Property | Apr 2026 |
| 41426 | FLAHARTY, RAY L | Labette County, KS | Gas Property | Feb 2026 |
| 41427 | FLAHAVEN | Lee County, KY | Oil & Gas Property | Dec 2023 |
| 41428 | FLAHERTY | Coffey County, KS | Oil Property | Feb 2026 |
| 41429 | FLAHERTY 1 | Weld County, CO | Oil & Gas Property | Apr 2026 |
| 41430 | FLAKE | Coffey County, KS | Oil Property | Feb 2026 |
| 41431 | FLAME | Nueces County, TX | Oil & Gas Property | Dec 2025 |
| 41432 | FLAMEBACK | Divide County, ND | Oil & Gas Property | Apr 2026 |
| 41433 | FLAMES 3-10-1S-3W | Carter County, OK | Oil & Gas Property | Mar 2026 |
| 41434 | FLAMING | Washita County, OK | Oil & Gas Property | Mar 2026 |
| 41435 | FLAMING DRAGON | Duchesne County, UT | Oil & Gas Property | Apr 2026 |
| 41436 | FLAMING SNAIL FEDERAL COM | Eddy County, NM | Oil & Gas Property | Apr 2026 |
| 41437 | FLAMING STAR 02-11 | Howard County, TX | Oil & Gas Property | Mar 2026 |
| 41438 | FLAMMENWERFER UNIT | McMullen County, TX | Oil & Gas Property | Mar 2026 |
| 41439 | FLAMSON | Andrews County, TX | Oil & Gas Property | Mar 2026 |
| 41440 | FLAN | Texas County, OK | Gas Property | Mar 2026 |
| 41441 | FLANAGAN | Franklin County, AR | Gas Property | Jun 2024 |
| 41442 | FLANAGAN | Montgomery County, KS | Oil & Gas Property | Feb 2026 |
| 41443 | FLANAGAN | Panola County, TX | Oil & Gas Property | Mar 2026 |
| 41444 | FLANAGAN | Andrews County, TX | Oil & Gas Property | Mar 2026 |
| 41445 | FLANAGAN | Gregg County, TX | Oil & Gas Property | Mar 2026 |
| 41446 | FLANAGAN | Rusk County, TX | Oil & Gas Property | Jan 2026 |
| 41447 | FLANAGAN | Martin County, TX | Oil & Gas Property | Jan 2026 |
| 41448 | FLANAGAN | Howard County, TX | Oil & Gas Property | Mar 2026 |
| 41449 | FLANAGAN | Cotton County, OK | Oil Property | Mar 2022 |
| 41450 | FLANAGAN | Love County, OK | Oil & Gas Property | Apr 2026 |
| 41451 | FLANAGAN | Glasscock County, TX | Oil & Gas Property | Mar 2026 |
| 41452 | FLANAGAN | Hansford County, TX | Gas Property | Mar 2026 |
| 41453 | FLANAGAN | Ritchie County, WV | Oil & Gas Property | Jun 2021 |
| 41454 | FLANAGAN A | Titus County, TX | Oil & Gas Property | Mar 2026 |
| 41455 | FLANAGAN ANNIE OIL MANAGEMENT | Martin County, TX | Oil & Gas Property | Mar 2026 |
| 41456 | FLANAGAN, GEORGE | Ritchie County, WV | Oil & Gas Property | Dec 2021 |
| 41457 | FLANAGAN-JERNIGAN HV UNIT | Panola County, TX | Gas Property | Mar 2026 |
| 41458 | FLANDERS | Barton County, KS | Oil Property | Feb 2026 |
| 41459 | FLANDERS | Montgomery County, KS | Gas Property | Feb 2026 |
| 41460 | FLANE | Gonzales County, TX | Oil & Gas Property | Mar 2026 |
| 41461 | FLANIGAN | Weld County, CO | Oil & Gas Property | Mar 2026 |
| 41462 | FLANIGAN | Phillips County, KS | Oil Property | Jul 1988 |
| 41463 | FLANIGAN | Caddo County, OK | Oil & Gas Property | Mar 2026 |
| 41464 | FLANIGIN | Caddo County, OK | Oil & Gas Property | Mar 2026 |
| 41465 | FLANK | Baca County, CO | Oil Property | Mar 2026 |
| 41466 | FLANNERY, FANNIE | Floyd County, KY | Gas Property | Dec 2024 |
| 41467 | FLAPJACK | La Salle County, TX | Oil & Gas Property | Mar 2026 |
| 41468 | FLASCHENRIEM | Weld County, CO | Oil & Gas Property | Mar 2026 |
| 41469 | FLASH | Bradford County, PA | Gas Property | Mar 2026 |
| 41470 | FLASH | Carter County, OK | Oil & Gas Property | Apr 2026 |
| 41471 | FLASH STATE 4076-13-24-1FH | Converse County, WY | Oil & Gas Property | Mar 2026 |
| 41472 | FLASH WEST | Howard County, TX | Oil & Gas Property | Mar 2026 |
| 41473 | FLASHBACK | Tarrant County, TX | Oil & Gas Property | Mar 2026 |
| 41474 | FLAT COULEE | Liberty County, MT | Oil & Gas Property | Feb 2026 |
| 41475 | FLAT CREEK | Campbell County, WY | Oil Property | Mar 2026 |
| 41476 | FLAT CREEK | Dimmit County, TX | Oil & Gas Property | Mar 2026 |
| 41477 | FLAT HEAD FEDERAL COM | Lea County, NM | Oil & Gas Property | Apr 2026 |
| 41478 | FLAT IRON 22 | Hughes County, OK | Oil & Gas Property | Apr 2026 |
| 41479 | FLAT ROCK | Uintah County, UT | Oil & Gas Property | Apr 2026 |
| 41480 | FLAT TOP | Carbon County, WY | Oil & Gas Property | Mar 2026 |
| 41481 | FLAT TOP | Haskell County, TX | Oil & Gas Property | Mar 2026 |
| 41482 | FLAT TOP | Jones County, TX | Oil & Gas Property | Mar 2026 |
| 41483 | FLAT TOP BUTTE | McKenzie County, ND | Oil & Gas Property | Apr 2026 |
| 41484 | FLAT TOP BUTTE | McKenzie County, ND | Oil & Gas Property | Apr 2026 |
| 41485 | FLAT TOP BUTTE | McKenzie County, ND | Oil & Gas Property | Apr 2026 |
| 41486 | FLAT TOP HILL 3467-27 | Niobrara County, WY | Oil & Gas Property | Mar 2026 |
| 41487 | FLAT TOP HILL 3567-11-23-2 NXH | Niobrara County, WY | Oil & Gas Property | Mar 2026 |
| 41488 | FLAT TOP STRAWN UNIT | Jones County, TX | Oil & Gas Property | Mar 2026 |
| 41489 | FLATBOW | Campbell County, WY | Oil & Gas Property | Apr 2026 |
| 41490 | FLATBOW | Campbell County, WY | Oil & Gas Property | Apr 2026 |
| 41491 | FLATBOW | Campbell County, WY | Oil & Gas Property | Apr 2026 |
| 41492 | FLATEN 15-8H | Williams County, ND | Oil & Gas Property | Apr 2026 |
| 41493 | FLATHEAD 2-15 | Reeves County, TX | Oil & Gas Property | Mar 2026 |
| 41494 | FLATHEAD 3X34-18-26 | Ellis County, OK | Oil & Gas Property | Mar 2026 |
| 41495 | FLATHERS | Ochiltree County, TX | Oil & Gas Property | Mar 2026 |
| 41496 | FLATLAND | McKenzie County, ND | Oil & Gas Property | Apr 2026 |
| 41497 | FLATLAND 11X-2 | McKenzie County, ND | Oil & Gas Property | Apr 2026 |
| 41498 | FLATLAND 844-1 | Phillips County, CO | Gas Property | Sep 2023 |
| 41499 | FLATLAND 944-35 | Phillips County, CO | Gas Property | Sep 2023 |
| 41500 | FLATLAND FEDERAL 11-4 | McKenzie County, ND | Oil & Gas Property | Apr 2026 |