| 5401 | DUNCAN | Payne County, OK | Oil & Gas Property | Feb 2025 |
| 5402 | DUNCAN | Stonewall County, TX | Oil Property | Mar 2025 |
| 5403 | DUNCAN | Seminole County, OK | Oil & Gas Property | Jul 2020 |
| 5404 | DUNCAN | Wheeler County, TX | Oil & Gas Property | Feb 2025 |
| 5405 | DUNCAN | Rusk County, TX | Oil & Gas Property | Sep 2019 |
| 5406 | DUNCAN | Gray County, TX | Oil & Gas Property | Mar 2025 |
| 5407 | DUNCAN | Woods County, OK | Oil & Gas Property | Mar 2025 |
| 5408 | DUNCAN | Hughes County, OK | Oil & Gas Property | Feb 2025 |
| 5409 | DUNCAN | Okmulgee County, OK | Oil & Gas Property | Sep 2023 |
| 5410 | DUNCAN | Cass County, TX | Oil & Gas Property | Mar 2025 |
| 5411 | DUNCAN | Hughes County, OK | Oil & Gas Property | Mar 2002 |
| 5412 | DUNCAN | Los Angeles County, CA | Oil & Gas Property | Apr 2025 |
| 5413 | DUNCAN | Wharton County, TX | Oil & Gas Property | Mar 2025 |
| 5414 | DUNCAN | Coleman County, TX | Oil & Gas Property | Feb 2025 |
| 5415 | DUNCAN | Moffat County, CO | Oil & Gas Property | Mar 2025 |
| 5416 | DUNCAN | Pontotoc County, OK | Oil Property | Feb 2025 |
| 5417 | DUNCAN | Noble County, OK | Oil Property | Feb 2025 |
| 5418 | DUNCAN | Parker County, TX | Oil & Gas Property | Jan 2021 |
| 5419 | DUNCAN | Trego County, KS | Oil Property | Dec 2023 |
| 5420 | DUNCAN | Coshocton County, OH | Oil & Gas Property | Dec 2024 |
| 5421 | DUNCAN | Montague County, TX | Oil & Gas Property | Mar 2025 |
| 5422 | DUNCAN | Pontotoc County, OK | Oil Property | Jan 2025 |
| 5423 | DUNCAN | Webster County, KY | Oil Property | Dec 2023 |
| 5424 | DUNCAN | Le Flore County, OK | Gas Property | Feb 2025 |
| 5425 | DUNCAN | Coal County, OK | Oil & Gas Property | Feb 2025 |
| 5426 | DUNCAN | Webster County, KY | Oil Property | Oct 2015 |
| 5427 | DUNCAN | Woodson County, KS | Oil Property | Feb 2025 |
| 5428 | DUNCAN | Pittsburg County, OK | Gas Property | Feb 2025 |
| 5429 | DUNCAN | Texas County, OK | Gas Property | Feb 2025 |
| 5430 | DUNCAN | Campbell County, WY | Oil & Gas Property | Jun 2017 |
| 5431 | DUNCAN | Duchesne County, UT | Oil & Gas Property | Mar 2025 |
| 5432 | DUNCAN | Matagorda County, TX | Oil & Gas Property | Feb 2025 |
| 5433 | DUNCAN | Brown County, TX | Oil & Gas Property | Sep 2014 |
| 5434 | DUNCAN | Okmulgee County, OK | Oil & Gas Property | Dec 2008 |
| 5435 | DUNCAN | Gregg County, TX | Oil & Gas Property | Mar 2025 |
| 5436 | DUNCAN | Carson County, TX | Gas Property | Mar 2025 |
| 5437 | DUNCAN 1 | Uintah County, UT | Oil & Gas Property | Mar 2025 |
| 5438 | DUNCAN 19 | Lea County, NM | Oil & Gas Property | Mar 2025 |
| 5439 | DUNCAN 2-34A1 | Uintah County, UT | Oil & Gas Property | Mar 2025 |
| 5440 | DUNCAN 9 | Howard County, TX | Oil & Gas Property | Feb 2025 |
| 5441 | DUNCAN D | Wharton County, TX | Oil & Gas Property | Mar 2025 |
| 5442 | DUNCAN D 1 | Weld County, CO | Oil & Gas Property | Oct 2020 |
| 5443 | DUNCAN D 20 | Weld County, CO | Oil & Gas Property | Apr 2018 |
| 5444 | DUNCAN FED | Uintah County, UT | Gas Property | Mar 2025 |
| 5445 | DUNCAN FEDERAL | Chaves County, NM | Oil Property | Jul 2019 |
| 5446 | DUNCAN FEDERAL | McKenzie County, ND | Oil & Gas Property | Dec 2020 |
| 5447 | DUNCAN FORK | Washington County, PA | Oil & Gas Property | Dec 2024 |
| 5448 | DUNCAN GARDNER | Love County, OK | Oil & Gas Property | Jul 2024 |
| 5449 | DUNCAN GAS UNIT | Robertson County, TX | Oil & Gas Property | Mar 2025 |
| 5450 | DUNCAN J.J. GAS UNIT | Robertson County, TX | Oil & Gas Property | Mar 2025 |
| 5451 | DUNCAN LH FEDERAL | Chaves County, NM | Oil & Gas Property | Mar 2025 |
| 5452 | DUNCAN SHORES | Coal County, OK | Gas Property | Feb 2025 |
| 5453 | DUNCAN STATE COM | Chaves County, NM | Oil & Gas Property | Apr 2025 |
| 5454 | DUNCAN UNIT | Tarrant County, TX | Oil & Gas Property | Mar 2025 |
| 5455 | DUNCAN UNIT | Karnes County, TX | Oil & Gas Property | Mar 2025 |
| 5456 | DUNCAN UNIT | Lea County, NM | Oil & Gas Property | Aug 1996 |
| 5457 | DUNCAN UNIT | Karnes County, TX | Oil & Gas Property | Mar 2025 |
| 5458 | DUNCAN VANSCHAICK | Moffat County, CO | Oil & Gas Property | Mar 2025 |
| 5459 | DUNCAN W.C | Jack County, TX | Oil & Gas Property | Feb 2025 |
| 5460 | DUNCAN, M E | Henderson County, KY | Oil Property | Dec 2020 |
| 5461 | DUNCAN, R | Henderson County, KY | Oil Property | Dec 2018 |
| 5462 | DUNCAN, S | Webster County, KY | Oil Property | Dec 2022 |
| 5463 | DUNCAN-BEAVERS ET AL UNIT | Coleman County, TX | Oil & Gas Property | Feb 2025 |
| 5464 | DUNCAN-WEMPLE | De Soto Parish, LA | Gas Property | Dec 2024 |
| 5465 | DUNDEE 4 FEDERAL COM | Eddy County, NM | Oil & Gas Property | Mar 2025 |
| 5466 | DUNDEE LAND & COAL | Tuscarawas County, OH | Oil & Gas Property | Dec 2022 |
| 5467 | DUNDER | McIntosh County, OK | Oil & Gas Property | Feb 2025 |
| 5468 | DUNDICS UNIT | Mahoning County, OH | Oil & Gas Property | Dec 2024 |
| 5469 | DUNDY STATE | Dundy County, NE | Oil Property | Dec 2024 |
| 5470 | DUNE | Beaver County, OK | Oil & Gas Property | Feb 2025 |
| 5471 | DUNE | McClain County, OK | Oil & Gas Property | Feb 2025 |
| 5472 | DUNE RIDGE | Logan County, CO | Oil & Gas Property | Feb 2015 |
| 5473 | DUNE UNIT | La Salle County, TX | Oil & Gas Property | Mar 2025 |
| 5474 | DUNES | Morris County, TX | Oil & Gas Property | Mar 2025 |
| 5475 | DUNES | Winkler County, TX | Oil & Gas Property | Mar 2025 |
| 5476 | DUNFEE | Muskingum County, OH | Oil & Gas Property | Dec 2024 |
| 5477 | DUNFORD 14-10H | Dunn County, ND | Oil & Gas Property | Apr 2025 |
| 5478 | DUNGAN | Grady County, OK | Oil & Gas Property | Feb 2025 |
| 5479 | DUNGAN | Grady County, OK | Oil & Gas Property | Feb 2025 |
| 5480 | DUNGAN | Lee County, TX | Oil & Gas Property | Mar 2025 |
| 5481 | DUNGAN 32-5 5 | Archuleta County, CO | Gas Property | Mar 2025 |
| 5482 | DUNGAN-KEY TRUST | San Patricio County, TX | Oil & Gas Property | Mar 2025 |
| 5483 | DUNHAM | Montgomery County, KS | Gas Property | Nov 2024 |
| 5484 | DUNHAM | Wayne County, OH | Oil & Gas Property | Dec 2024 |
| 5485 | DUNHAM | Bradford County, PA | Gas Property | Jan 2025 |
| 5486 | DUNHAM | Young County, TX | Oil & Gas Property | Mar 2025 |
| 5487 | DUNHAM DAVID | Panola County, TX | Oil & Gas Property | Mar 2025 |
| 5488 | DUNHAM, MITCHELL ET AL DUNHAM | Taylor County, WV | Oil & Gas Property | Dec 2021 |
| 5489 | DUNHAM-LEM | Chautauqua County, KS | Oil Property | Feb 2025 |
| 5490 | DUNIGAN | Reeves County, TX | Oil & Gas Property | Mar 2025 |
| 5491 | DUNIGAN "12" | Midland County, TX | Oil & Gas Property | Mar 2025 |
| 5492 | DUNIGAN 445 | Yoakum County, TX | Oil Property | Mar 2025 |
| 5493 | DUNIGAN STATE UNIT | Reeves County, TX | Oil & Gas Property | Mar 2025 |
| 5494 | DUNK - O.L. UNIT | Lee County, TX | Oil & Gas Property | Mar 2025 |
| 5495 | DUNKEL | Russell County, KS | Oil Property | Dec 2023 |
| 5496 | DUNKEL 7 STATE | Lea County, NM | Oil & Gas Property | Mar 2025 |
| 5497 | DUNKIN | Wagoner County, OK | Gas Property | May 2019 |
| 5498 | DUNKIN | Wagoner County, OK | Oil & Gas Property | May 2019 |
| 5499 | DUNKIN | Garvin County, OK | Oil Property | Feb 2025 |
| 5500 | DUNKIN UNIT | Howard County, TX | Oil & Gas Property | Mar 2025 |