| 34301 | DUNBAR 1 | Montgomery County, KS | Gas Property | May 2026 |
| 34302 | DUNBAR NED | Sutton County, TX | Oil & Gas Property | May 2026 |
| 34303 | DUNCAN | Kay County, OK | Oil & Gas Property | Jun 2026 |
| 34304 | DUNCAN | Stephens County, TX | Oil & Gas Property | Jun 2026 |
| 34305 | DUNCAN | Henderson County, KY | Oil Property | Dec 2024 |
| 34306 | DUNCAN | Ellis County, OK | Oil & Gas Property | Aug 2018 |
| 34307 | DUNCAN | Henderson County, KY | Oil Property | May 2013 |
| 34308 | DUNCAN | Stephens County, OK | Oil Property | Jun 2026 |
| 34309 | DUNCAN | Chautauqua County, KS | Oil Property | May 2026 |
| 34310 | DUNCAN | Payne County, OK | Oil & Gas Property | Jun 2026 |
| 34311 | DUNCAN | Stonewall County, TX | Oil Property | Jun 2026 |
| 34312 | DUNCAN | Seminole County, OK | Oil & Gas Property | Jun 2020 |
| 34313 | DUNCAN | Wheeler County, TX | Oil & Gas Property | Jun 2026 |
| 34314 | DUNCAN | Rusk County, TX | Oil & Gas Property | Aug 2019 |
| 34315 | DUNCAN | Gray County, TX | Oil & Gas Property | May 2026 |
| 34316 | DUNCAN | Woods County, OK | Oil & Gas Property | Jul 2026 |
| 34317 | DUNCAN | Hughes County, OK | Oil & Gas Property | Jul 2026 |
| 34318 | DUNCAN | Okmulgee County, OK | Oil & Gas Property | Sep 2023 |
| 34319 | DUNCAN | Cass County, TX | Oil & Gas Property | Jun 2026 |
| 34320 | DUNCAN | Hughes County, OK | Oil & Gas Property | Mar 2002 |
| 34321 | DUNCAN | Los Angeles County, CA | Oil & Gas Property | Jul 2026 |
| 34322 | DUNCAN | Wharton County, TX | Oil & Gas Property | Jun 2026 |
| 34323 | DUNCAN | Coleman County, TX | Oil & Gas Property | May 2026 |
| 34324 | DUNCAN | Moffat County, CO | Oil & Gas Property | Apr 2026 |
| 34325 | DUNCAN | Pontotoc County, OK | Oil Property | Jan 2026 |
| 34326 | DUNCAN | Noble County, OK | Oil Property | May 2026 |
| 34327 | DUNCAN | Parker County, TX | Oil & Gas Property | Jan 2021 |
| 34328 | DUNCAN | Trego County, KS | Oil Property | Dec 2023 |
| 34329 | DUNCAN | Coshocton County, OH | Oil & Gas Property | Dec 2025 |
| 34330 | DUNCAN | Montague County, TX | Oil & Gas Property | Jun 2026 |
| 34331 | DUNCAN | Pontotoc County, OK | Oil Property | Apr 2026 |
| 34332 | DUNCAN | Webster County, KY | Oil Property | Dec 2023 |
| 34333 | DUNCAN | Le Flore County, OK | Gas Property | Jun 2026 |
| 34334 | DUNCAN | Coal County, OK | Oil & Gas Property | Jun 2026 |
| 34335 | DUNCAN | Webster County, KY | Oil Property | Oct 2015 |
| 34336 | DUNCAN | Woodson County, KS | Oil Property | May 2026 |
| 34337 | DUNCAN | Pittsburg County, OK | Gas Property | Jun 2026 |
| 34338 | DUNCAN | Texas County, OK | Gas Property | Jun 2026 |
| 34339 | DUNCAN | Campbell County, WY | Oil & Gas Property | Jun 2017 |
| 34340 | DUNCAN | Duchesne County, UT | Oil & Gas Property | Jul 2026 |
| 34341 | DUNCAN | Matagorda County, TX | Oil & Gas Property | Jun 2026 |
| 34342 | DUNCAN | Okmulgee County, OK | Oil & Gas Property | Dec 2008 |
| 34343 | DUNCAN | Gregg County, TX | Oil & Gas Property | Jun 2026 |
| 34344 | DUNCAN | Carson County, TX | Gas Property | Jun 2026 |
| 34345 | DUNCAN 1 | Uintah County, UT | Oil & Gas Property | Jun 2026 |
| 34346 | DUNCAN 19 | Lea County, NM | Oil & Gas Property | Jun 2026 |
| 34347 | DUNCAN 9 | Howard County, TX | Oil & Gas Property | Apr 2026 |
| 34348 | DUNCAN D | Wharton County, TX | Oil & Gas Property | May 2026 |
| 34349 | DUNCAN D 1 | Weld County, CO | Oil & Gas Property | Oct 2020 |
| 34350 | DUNCAN D 20 | Weld County, CO | Oil & Gas Property | Apr 2018 |
| 34351 | DUNCAN FED | Uintah County, UT | Gas Property | Jun 2026 |
| 34352 | DUNCAN FEDERAL | Chaves County, NM | Oil Property | Jul 2019 |
| 34353 | DUNCAN FEDERAL | McKenzie County, ND | Oil & Gas Property | Dec 2020 |
| 34354 | DUNCAN FORK | Washington County, PA | Oil & Gas Property | Dec 2025 |
| 34355 | DUNCAN GARDNER | Love County, OK | Oil & Gas Property | Jul 2024 |
| 34356 | DUNCAN GAS UNIT | Robertson County, TX | Oil & Gas Property | Jun 2026 |
| 34357 | DUNCAN J.J. GAS UNIT | Robertson County, TX | Oil & Gas Property | Jun 2026 |
| 34358 | DUNCAN LH FEDERAL | Chaves County, NM | Oil & Gas Property | Jun 2026 |
| 34359 | DUNCAN SHORES | Coal County, OK | Oil & Gas Property | Jun 2026 |
| 34360 | DUNCAN STATE COM | Chaves County, NM | Oil & Gas Property | Jul 2026 |
| 34361 | DUNCAN UNIT | Tarrant County, TX | Oil & Gas Property | Jun 2026 |
| 34362 | DUNCAN UNIT | Karnes County, TX | Oil & Gas Property | Jun 2026 |
| 34363 | DUNCAN UNIT | Lea County, NM | Oil & Gas Property | Aug 1996 |
| 34364 | DUNCAN UNIT | Karnes County, TX | Oil & Gas Property | Jun 2026 |
| 34365 | DUNCAN VANSCHAICK | Moffat County, CO | Oil & Gas Property | Apr 2026 |
| 34366 | DUNCAN, M E | Henderson County, KY | Oil Property | Dec 2020 |
| 34367 | DUNCAN, R | Henderson County, KY | Oil Property | Dec 2018 |
| 34368 | DUNCAN, S | Webster County, KY | Oil Property | Dec 2022 |
| 34369 | DUNCAN, W.C | Jack County, TX | Oil & Gas Property | May 2026 |
| 34370 | DUNCAN-BEAVERS ET AL UNIT | Coleman County, TX | Oil & Gas Property | Jun 2026 |
| 34371 | DUNCAN-WEMPLE | De Soto Parish, LA | Gas Property | Dec 2024 |
| 34372 | DUNDEE 4 FEDERAL COM | Eddy County, NM | Oil & Gas Property | Jul 2026 |
| 34373 | DUNDEE LAND & COAL | Tuscarawas County, OH | Oil & Gas Property | Dec 2022 |
| 34374 | DUNDER | McIntosh County, OK | Oil & Gas Property | Jun 2026 |
| 34375 | DUNDICS UNIT | Mahoning County, OH | Oil & Gas Property | Dec 2025 |
| 34376 | DUNDY STATE | Dundy County, NE | Oil Property | Dec 2025 |
| 34377 | DUNE | Beaver County, OK | Oil & Gas Property | Jun 2026 |
| 34378 | DUNE | McClain County, OK | Oil & Gas Property | Jun 2026 |
| 34379 | DUNE RIDGE | Logan County, CO | Oil & Gas Property | Feb 2015 |
| 34380 | DUNE UNIT | La Salle County, TX | Oil & Gas Property | Jun 2026 |
| 34381 | DUNES | Morris County, TX | Oil & Gas Property | Jun 2026 |
| 34382 | DUNES | Winkler County, TX | Oil & Gas Property | Jun 2026 |
| 34383 | DUNFEE | Athens County, OH | Oil & Gas Property | Dec 2017 |
| 34384 | DUNFEE | Muskingum County, OH | Oil & Gas Property | Dec 2025 |
| 34385 | DUNGAN | Grady County, OK | Oil & Gas Property | Jun 2026 |
| 34386 | DUNGAN | Lee County, TX | Oil & Gas Property | Jun 2026 |
| 34387 | DUNGAN 32-5 5 | Archuleta County, CO | Gas Property | May 2026 |
| 34388 | DUNGAN-KEY TRUST | San Patricio County, TX | Oil & Gas Property | Jun 2026 |
| 34389 | DUNHAM | Montgomery County, KS | Gas Property | Feb 2026 |
| 34390 | DUNHAM | Wayne County, OH | Oil & Gas Property | Dec 2025 |
| 34391 | DUNHAM | Bradford County, PA | Gas Property | Jun 2026 |
| 34392 | DUNHAM | Young County, TX | Oil & Gas Property | Jun 2026 |
| 34393 | DUNHAM DAVID | Panola County, TX | Oil & Gas Property | Jun 2026 |
| 34394 | DUNHAM, MITCHELL ET AL DUNHAM | Taylor County, WV | Oil & Gas Property | Dec 2021 |
| 34395 | DUNHAM-LEM | Chautauqua County, KS | Oil Property | May 2026 |
| 34396 | DUNIGAN | Reeves County, TX | Oil & Gas Property | Jun 2026 |
| 34397 | DUNIGAN 445 | Yoakum County, TX | Oil Property | Jun 2026 |
| 34398 | DUNIGAN STATE UNIT | Reeves County, TX | Oil & Gas Property | Jun 2026 |
| 34399 | DUNKEL | Russell County, KS | Oil Property | Dec 2023 |
| 34400 | DUNKIN | Wagoner County, OK | Gas Property | May 2019 |