| 5501 | DUNCAN | Stephens County, TX | Oil & Gas Property | Jun 2025 |
| 5502 | DUNCAN | Henderson County, KY | Oil Property | Dec 2022 |
| 5503 | DUNCAN | Ellis County, OK | Oil & Gas Property | Aug 2018 |
| 5504 | DUNCAN | Henderson County, KY | Oil Property | May 2013 |
| 5505 | DUNCAN | Stephens County, OK | Oil Property | Jul 2025 |
| 5506 | DUNCAN | Chautauqua County, KS | Oil Property | Jun 2025 |
| 5507 | DUNCAN | Payne County, OK | Oil & Gas Property | Aug 2025 |
| 5508 | DUNCAN | Stonewall County, TX | Oil Property | Sep 2025 |
| 5509 | DUNCAN | Seminole County, OK | Oil & Gas Property | Mar 2021 |
| 5510 | DUNCAN | Wheeler County, TX | Oil & Gas Property | Sep 2025 |
| 5511 | DUNCAN | Rusk County, TX | Oil & Gas Property | Sep 2019 |
| 5512 | DUNCAN | Gray County, TX | Oil & Gas Property | Sep 2025 |
| 5513 | DUNCAN | Woods County, OK | Oil & Gas Property | Sep 2025 |
| 5514 | DUNCAN | Hughes County, OK | Oil & Gas Property | Sep 2025 |
| 5515 | DUNCAN | Okmulgee County, OK | Oil & Gas Property | Sep 2023 |
| 5516 | DUNCAN | Cass County, TX | Oil & Gas Property | Sep 2025 |
| 5517 | DUNCAN | Hughes County, OK | Oil & Gas Property | Mar 2002 |
| 5518 | DUNCAN | Los Angeles County, CA | Oil & Gas Property | Oct 2025 |
| 5519 | DUNCAN | Wharton County, TX | Oil & Gas Property | Sep 2025 |
| 5520 | DUNCAN | Coleman County, TX | Oil & Gas Property | Aug 2025 |
| 5521 | DUNCAN | Moffat County, CO | Oil & Gas Property | Sep 2025 |
| 5522 | DUNCAN | Pontotoc County, OK | Oil Property | Aug 2025 |
| 5523 | DUNCAN | Noble County, OK | Oil Property | Aug 2025 |
| 5524 | DUNCAN | Parker County, TX | Oil & Gas Property | Jan 2021 |
| 5525 | DUNCAN | Trego County, KS | Oil Property | Dec 2023 |
| 5526 | DUNCAN | Coshocton County, OH | Oil & Gas Property | Dec 2024 |
| 5527 | DUNCAN | Montague County, TX | Oil & Gas Property | Sep 2025 |
| 5528 | DUNCAN | Pontotoc County, OK | Oil Property | Jul 2025 |
| 5529 | DUNCAN | Webster County, KY | Oil Property | Dec 2023 |
| 5530 | DUNCAN | Le Flore County, OK | Gas Property | Aug 2025 |
| 5531 | DUNCAN | Coal County, OK | Oil & Gas Property | Aug 2025 |
| 5532 | DUNCAN | Webster County, KY | Oil Property | Oct 2015 |
| 5533 | DUNCAN | Woodson County, KS | Oil Property | Jun 2025 |
| 5534 | DUNCAN | Pittsburg County, OK | Gas Property | Aug 2025 |
| 5535 | DUNCAN | Texas County, OK | Gas Property | Aug 2025 |
| 5536 | DUNCAN | Campbell County, WY | Oil & Gas Property | Jun 2017 |
| 5537 | DUNCAN | Duchesne County, UT | Oil & Gas Property | Sep 2025 |
| 5538 | DUNCAN | Matagorda County, TX | Oil & Gas Property | Aug 2025 |
| 5539 | DUNCAN | Brown County, TX | Oil & Gas Property | Jan 2018 |
| 5540 | DUNCAN | Okmulgee County, OK | Oil & Gas Property | Dec 2008 |
| 5541 | DUNCAN | Gregg County, TX | Oil & Gas Property | Sep 2025 |
| 5542 | DUNCAN | Carson County, TX | Gas Property | Sep 2025 |
| 5543 | DUNCAN 1 | Uintah County, UT | Oil & Gas Property | Sep 2025 |
| 5544 | DUNCAN 19 | Lea County, NM | Oil & Gas Property | Sep 2025 |
| 5545 | DUNCAN 2-34A1 | Uintah County, UT | Oil & Gas Property | Sep 2025 |
| 5546 | DUNCAN 9 | Howard County, TX | Oil & Gas Property | Aug 2025 |
| 5547 | DUNCAN D | Wharton County, TX | Oil & Gas Property | Sep 2025 |
| 5548 | DUNCAN D 1 | Weld County, CO | Oil & Gas Property | Oct 2020 |
| 5549 | DUNCAN D 20 | Weld County, CO | Oil & Gas Property | Apr 2018 |
| 5550 | DUNCAN FED | Uintah County, UT | Gas Property | Sep 2025 |
| 5551 | DUNCAN FEDERAL | Chaves County, NM | Oil Property | Jul 2019 |
| 5552 | DUNCAN FEDERAL | McKenzie County, ND | Oil & Gas Property | Dec 2020 |
| 5553 | DUNCAN FORK | Washington County, PA | Oil & Gas Property | Dec 2024 |
| 5554 | DUNCAN GARDNER | Love County, OK | Oil & Gas Property | Jul 2024 |
| 5555 | DUNCAN GAS UNIT | Robertson County, TX | Oil & Gas Property | Sep 2025 |
| 5556 | DUNCAN J.J. GAS UNIT | Robertson County, TX | Oil & Gas Property | Aug 2025 |
| 5557 | DUNCAN LH FEDERAL | Chaves County, NM | Oil & Gas Property | Sep 2025 |
| 5558 | DUNCAN SHORES | Coal County, OK | Oil & Gas Property | Aug 2025 |
| 5559 | DUNCAN STATE COM | Chaves County, NM | Oil & Gas Property | Sep 2025 |
| 5560 | DUNCAN UNIT | Tarrant County, TX | Oil & Gas Property | Sep 2025 |
| 5561 | DUNCAN UNIT | Karnes County, TX | Oil & Gas Property | Sep 2025 |
| 5562 | DUNCAN UNIT | Lea County, NM | Oil & Gas Property | Aug 1996 |
| 5563 | DUNCAN UNIT | Karnes County, TX | Oil & Gas Property | Sep 2025 |
| 5564 | DUNCAN VANSCHAICK | Moffat County, CO | Oil & Gas Property | Sep 2025 |
| 5565 | DUNCAN W.C | Jack County, TX | Oil & Gas Property | Jul 2025 |
| 5566 | DUNCAN, M E | Henderson County, KY | Oil Property | Dec 2020 |
| 5567 | DUNCAN, R | Henderson County, KY | Oil Property | Dec 2018 |
| 5568 | DUNCAN, S | Webster County, KY | Oil Property | Dec 2022 |
| 5569 | DUNCAN-BEAVERS ET AL UNIT | Coleman County, TX | Oil & Gas Property | Aug 2025 |
| 5570 | DUNCAN-WEMPLE | De Soto Parish, LA | Gas Property | Dec 2024 |
| 5571 | DUNDEE 4 FEDERAL COM | Eddy County, NM | Oil & Gas Property | Sep 2025 |
| 5572 | DUNDEE LAND & COAL | Tuscarawas County, OH | Oil & Gas Property | Dec 2022 |
| 5573 | DUNDER | McIntosh County, OK | Oil & Gas Property | Aug 2025 |
| 5574 | DUNDICS UNIT | Mahoning County, OH | Oil & Gas Property | Dec 2024 |
| 5575 | DUNDY STATE | Dundy County, NE | Oil Property | Dec 2024 |
| 5576 | DUNE | Beaver County, OK | Oil & Gas Property | Aug 2025 |
| 5577 | DUNE | McClain County, OK | Oil & Gas Property | Aug 2025 |
| 5578 | DUNE RIDGE | Logan County, CO | Oil & Gas Property | Feb 2015 |
| 5579 | DUNE UNIT | La Salle County, TX | Oil & Gas Property | Sep 2025 |
| 5580 | DUNES | Morris County, TX | Oil & Gas Property | Sep 2025 |
| 5581 | DUNES | Winkler County, TX | Oil & Gas Property | Sep 2025 |
| 5582 | DUNFEE | Muskingum County, OH | Oil & Gas Property | Dec 2024 |
| 5583 | DUNFORD 14-10H | Dunn County, ND | Oil & Gas Property | Oct 2025 |
| 5584 | DUNGAN | Grady County, OK | Oil & Gas Property | Aug 2025 |
| 5585 | DUNGAN | Lee County, TX | Oil & Gas Property | Sep 2025 |
| 5586 | DUNGAN 32-5 5 | Archuleta County, CO | Gas Property | Sep 2025 |
| 5587 | DUNGAN-KEY TRUST | San Patricio County, TX | Oil & Gas Property | Sep 2025 |
| 5588 | DUNHAM | Montgomery County, KS | Gas Property | Nov 2024 |
| 5589 | DUNHAM | Wayne County, OH | Oil & Gas Property | Dec 2024 |
| 5590 | DUNHAM | Bradford County, PA | Gas Property | Sep 2025 |
| 5591 | DUNHAM | Young County, TX | Oil & Gas Property | Sep 2025 |
| 5592 | DUNHAM DAVID | Panola County, TX | Oil & Gas Property | Sep 2025 |
| 5593 | DUNHAM, MITCHELL ET AL DUNHAM | Taylor County, WV | Oil & Gas Property | Dec 2021 |
| 5594 | DUNHAM-LEM | Chautauqua County, KS | Oil Property | May 2025 |
| 5595 | DUNIGAN | Reeves County, TX | Oil & Gas Property | Sep 2025 |
| 5596 | DUNIGAN "12" | Midland County, TX | Oil & Gas Property | Sep 2025 |
| 5597 | DUNIGAN 445 | Yoakum County, TX | Oil Property | Sep 2025 |
| 5598 | DUNIGAN STATE UNIT | Reeves County, TX | Oil & Gas Property | Sep 2025 |
| 5599 | DUNKEL | Russell County, KS | Oil Property | Dec 2023 |
| 5600 | DUNKEL 7 STATE | Lea County, NM | Oil & Gas Property | Oct 2025 |