| 5301 | DUCK CREEK | Converse County, WY | Oil & Gas Property | Nov 2025 |
| 5302 | DUCK CREEK 1 | McCone County, MT | Oil & Gas Property | Nov 2024 |
| 5303 | DUCK CREEK UNIT | Stark County, ND | Oil & Gas Property | Dec 2025 |
| 5304 | DUCK FEDERAL | Lea County, NM | Oil & Gas Property | Dec 2025 |
| 5305 | DUCK HOLLOW | Fayette County, PA | Gas Property | Dec 2024 |
| 5306 | DUCK HUNT 1 | Lea County, NM | Oil & Gas Property | Dec 2025 |
| 5307 | DUCK IS UNIT | Beechey Point Quadrangle, AK | Oil & Gas Property | Dec 2025 |
| 5308 | DUCK IS UNIT MPI | Beechey Point Quadrangle, AK | Oil & Gas Property | Dec 2025 |
| 5309 | DUCK LAKE | Tarrant County, TX | Gas Property | Nov 2025 |
| 5310 | DUCK LAKE | Carbon County, WY | Oil & Gas Property | Nov 2025 |
| 5311 | DUCK LAKE 1 | Carbon County, WY | Oil & Gas Property | Nov 2025 |
| 5312 | DUCK POND | Adams County, MS | Oil & Gas Property | Aug 1983 |
| 5313 | DUCK POND 21910 36-25 | Midland County, TX | Oil & Gas Property | Nov 2025 |
| 5314 | DUCKBOARD | La Salle County, TX | Oil & Gas Property | Nov 2025 |
| 5315 | DUCKCREEK | Uintah County, UT | Oil & Gas Property | Dec 2025 |
| 5316 | DUCKER | Franklin County, MS | Oil & Gas Property | Nov 2025 |
| 5317 | DUCKETT | Johnson County, TX | Gas Property | Nov 2025 |
| 5318 | DUCKETT | Sebastian County, AR | Gas Property | Jun 2024 |
| 5319 | DUCKS DU | Shelby County, TX | Oil & Gas Property | Nov 2025 |
| 5320 | DUCKWORTH | Muskingum County, OH | Oil & Gas Property | Dec 2024 |
| 5321 | DUCKWORTH | Washington County, OH | Oil & Gas Property | Dec 2024 |
| 5322 | DUCKWORTH | Doddridge County, WV | Oil & Gas Property | Aug 2021 |
| 5323 | DUCKWORTH | Kingman County, KS | Oil & Gas Property | Sep 2025 |
| 5324 | DUCKWORTH | Jack County, TX | Oil & Gas Property | Nov 2025 |
| 5325 | DUCKWORTH | Weld County, CO | Oil & Gas Property | Sep 2022 |
| 5326 | DUCOTE | Grant Parish, LA | Oil Property | Nov 2024 |
| 5327 | DUCOTE | Caddo Parish, LA | Oil & Gas Property | Sep 2024 |
| 5328 | DUDE WILSON G | Ochiltree County, TX | Oil & Gas Property | Nov 2025 |
| 5329 | DUDECK | Cleburne County, AR | Gas Property | Jul 2024 |
| 5330 | DUDECK HEIRS GAS UNIT | Harrison County, TX | Oil & Gas Property | Nov 2025 |
| 5331 | DUDEK 1 | Logan County, OK | Oil & Gas Property | Nov 2025 |
| 5332 | DUDERSTADT | Dewitt County, TX | Oil & Gas Property | Apr 2022 |
| 5333 | DUDERSTADT | Goliad County, TX | Oil & Gas Property | May 2013 |
| 5334 | DUDERSTADT | Dewitt County, TX | Oil & Gas Property | Nov 2025 |
| 5335 | DUDGEON | Cowley County, KS | Oil Property | Feb 1982 |
| 5336 | DUDGEON | Kiowa County, OK | Oil Property | Apr 2004 |
| 5337 | DUDGEON | Knox County, OH | Oil & Gas Property | Dec 2024 |
| 5338 | DUDGEON 1 | Morton County, KS | Gas Property | Jan 2010 |
| 5339 | DUDLEY | Stevens County, KS | Gas Property | Sep 2025 |
| 5340 | DUDLEY | Kern County, CA | Oil Property | Dec 2006 |
| 5341 | DUDLEY | Carter County, OK | Oil & Gas Property | Sep 2007 |
| 5342 | DUDLEY | Eastland County, TX | Oil & Gas Property | Oct 2025 |
| 5343 | DUDLEY | Neosho County, KS | Oil & Gas Property | Sep 2025 |
| 5344 | DUDLEY | Allen County, KS | Oil Property | Dec 2024 |
| 5345 | DUDLEY | Noble County, OH | Oil & Gas Property | Dec 2021 |
| 5346 | DUDLEY | Ochiltree County, TX | Oil & Gas Property | Nov 2025 |
| 5347 | DUDLEY | Rusk County, TX | Oil & Gas Property | Apr 2022 |
| 5348 | DUDLEY | Barry County, MI | Oil Property | Sep 2025 |
| 5349 | DUDLEY | Moore County, TX | Gas Property | Nov 2025 |
| 5350 | DUDLEY | Monterey County, CA | Oil & Gas Property | Dec 2025 |
| 5351 | DUDLEY | Noble County, OH | Gas Property | Dec 2024 |
| 5352 | DUDLEY | Crockett County, TX | Oil & Gas Property | Nov 2025 |
| 5353 | DUDLEY | Runnels County, TX | Oil & Gas Property | Nov 2025 |
| 5354 | DUDLEY | Los Angeles County, CA | Oil Property | Nov 1986 |
| 5355 | DUDLEY 10 | Winkler County, TX | Oil & Gas Property | Nov 2025 |
| 5356 | DUDLEY DAWSON | McKenzie County, ND | Oil & Gas Property | Dec 2025 |
| 5357 | DUDLEY FARMS UNIT | Hill County, TX | Oil & Gas Property | Nov 2025 |
| 5358 | DUDLEY FEDERAL | Carbon County, WY | Gas Property | Nov 2005 |
| 5359 | DUDLEY TOWNSHIP | Haskell County, KS | Oil Property | Jan 2024 |
| 5360 | DUDLEY UPLRC | Carbon County, WY | Gas Property | Nov 2005 |
| 5361 | DUDLEY-MAY | Guernsey County, OH | Oil & Gas Property | Dec 2012 |
| 5362 | DUDREY | Pratt County, KS | Oil & Gas Property | Sep 2025 |
| 5363 | DUDREY | Stafford County, KS | Oil Property | Sep 2024 |
| 5364 | DUDREY | Stafford County, KS | Oil Property | Jun 2025 |
| 5365 | DUDREY | Seward County, KS | Gas Property | Sep 2025 |
| 5366 | DUDREY | Stafford County, KS | Oil & Gas Property | Sep 2025 |
| 5367 | DUDREY | Stafford County, KS | Oil Property | Aug 2025 |
| 5368 | DUELL | Weld County, CO | Oil & Gas Property | Feb 2019 |
| 5369 | DUELL | Sherman County, KS | Gas Property | Sep 2025 |
| 5370 | DUELL 32-6 5 | La Plata County, CO | Gas Property | Nov 2025 |
| 5371 | DUELL TRUSTS 3 | Cheyenne County, KS | Gas Property | Sep 2025 |
| 5372 | DUEPPENGIESSER | Wyoming County, NY | Gas Property | Dec 2024 |
| 5373 | DUER | Woodward County, OK | Oil & Gas Property | Dec 2025 |
| 5374 | DUERKSEN | Marion County, KS | Oil & Gas Property | Sep 2025 |
| 5375 | DUERR UNIT | Tuscarawas County, OH | Oil & Gas Property | Dec 2024 |
| 5376 | DUERR, THOMAS | Ritchie County, WV | Oil & Gas Property | Dec 2021 |
| 5377 | DUERSON | Jack County, TX | Oil & Gas Property | Jun 2025 |
| 5378 | DUERSON | Jack County, TX | Oil & Gas Property | Nov 2025 |
| 5379 | DUESER | Rice County, KS | Oil Property | Sep 2025 |
| 5380 | DUESING | Finney County, KS | Gas Property | Apr 2025 |
| 5381 | DUESSEN-DUNN UNIT | Denton County, TX | Oil & Gas Property | Nov 2023 |
| 5382 | DUET 148-93-18C-07-1H | Dunn County, ND | Oil & Gas Property | Dec 2025 |
| 5383 | DUFERS | San Juan County, NM | Oil & Gas Property | Jul 2008 |
| 5384 | DUFF | San Juan County, NM | Gas Property | Nov 2025 |
| 5385 | DUFF | Roger Mills County, OK | Oil & Gas Property | Nov 2025 |
| 5386 | DUFF | San Juan County, NM | Gas Property | Nov 2025 |
| 5387 | DUFF | Okmulgee County, OK | Oil & Gas Property | Nov 2025 |
| 5388 | DUFF | Washington County, OH | Oil Property | Dec 2024 |
| 5389 | DUFF | Westmoreland County, PA | Gas Property | Dec 2025 |
| 5390 | DUFF | Polk County, TX | Oil & Gas Property | Jan 2023 |
| 5391 | DUFF | Tom Green County, TX | Oil & Gas Property | Sep 2025 |
| 5392 | DUFF 'O' 1 | Haskell County, KS | Oil Property | Mar 2015 |
| 5393 | DUFF 7 | Glasscock County, TX | Oil & Gas Property | Nov 2025 |
| 5394 | DUFF A. H. ESTATE | Schleicher County, TX | Oil & Gas Property | Nov 2025 |
| 5395 | DUFF B FEDERAL | Sandoval County, NM | Gas Property | Jul 2025 |
| 5396 | DUFF GAS COM | San Juan County, NM | Oil & Gas Property | Nov 2025 |
| 5397 | DUFF, DONALD 15 | Neosho County, KS | Gas Property | Sep 2025 |
| 5398 | DUFF-SHELL | Kern County, CA | Oil & Gas Property | Dec 2025 |
| 5399 | DUFFER | Eastland County, TX | Oil & Gas Property | Nov 2025 |
| 5400 | DUFFIELD | Eddy County, NM | Oil & Gas Property | Dec 2025 |