| 5301 | DUFF | San Juan County, NM | Gas Property | Sep 2025 |
| 5302 | DUFF | Okmulgee County, OK | Oil & Gas Property | Aug 2025 |
| 5303 | DUFF | Washington County, OH | Oil Property | Dec 2024 |
| 5304 | DUFF | Westmoreland County, PA | Gas Property | Sep 2025 |
| 5305 | DUFF | Polk County, TX | Oil & Gas Property | Jan 2023 |
| 5306 | DUFF | Tom Green County, TX | Oil & Gas Property | Sep 2025 |
| 5307 | DUFF 'O' 1 | Haskell County, KS | Oil Property | Mar 2015 |
| 5308 | DUFF 7 | Glasscock County, TX | Oil & Gas Property | Aug 2025 |
| 5309 | DUFF A. H. ESTATE | Schleicher County, TX | Oil & Gas Property | Sep 2025 |
| 5310 | DUFF B FEDERAL | Sandoval County, NM | Gas Property | Jul 2025 |
| 5311 | DUFF GAS COM | San Juan County, NM | Oil & Gas Property | Sep 2025 |
| 5312 | DUFF, DONALD 15 | Neosho County, KS | Gas Property | Jun 2025 |
| 5313 | DUFF-SHELL | Kern County, CA | Oil & Gas Property | Oct 2025 |
| 5314 | DUFFER | Eastland County, TX | Oil & Gas Property | Sep 2025 |
| 5315 | DUFFIELD | Eddy County, NM | Oil & Gas Property | Sep 2025 |
| 5316 | DUFFIELD | Bowman County, ND | Oil & Gas Property | Feb 2008 |
| 5317 | DUFFIELD | Clay County, WV | Oil & Gas Property | Dec 2021 |
| 5318 | DUFFIELD | Gilmer County, WV | Gas Property | Dec 2021 |
| 5319 | DUFFIELD | Calhoun County, WV | Oil & Gas Property | Dec 2021 |
| 5320 | DUFFIELD | Bradford County, PA | Gas Property | Sep 2025 |
| 5321 | DUFFLEMEYER, MICHAEL B. ,. ET AL | Doddridge County, WV | Oil & Gas Property | Dec 2021 |
| 5322 | DUFFMAN 253 | Martin County, TX | Oil & Gas Property | Sep 2025 |
| 5323 | DUFFORD | Ford County, KS | Oil & Gas Property | Jun 2025 |
| 5324 | DUFFY | Wharton County, TX | Oil & Gas Property | Sep 2025 |
| 5325 | DUFFY | Jack County, TX | Oil & Gas Property | Aug 2025 |
| 5326 | DUFFY | Kingfisher County, OK | Oil & Gas Property | Aug 2025 |
| 5327 | DUFFY | Okmulgee County, OK | Gas Property | Feb 2024 |
| 5328 | DUFFY | Franklin County, KS | Oil Property | Jun 2025 |
| 5329 | DUFFY 15-34H | Williams County, ND | Oil & Gas Property | Oct 2025 |
| 5330 | DUFFY ESTATE D | McKean County, PA | Oil & Gas Property | Dec 2024 |
| 5331 | DUFORT | Stephens County, OK | Oil & Gas Property | Aug 2025 |
| 5332 | DUFORT | McClain County, OK | Oil & Gas Property | Sep 2025 |
| 5333 | DUFOUR 32-6 2 | La Plata County, CO | Gas Property | Sep 2025 |
| 5334 | DUGAN | De Soto Parish, LA | Gas Property | Dec 2024 |
| 5335 | DUGAN | Nowata County, OK | Gas Property | May 2016 |
| 5336 | DUGAN | Knox County, OH | Oil Property | Dec 2024 |
| 5337 | DUGAN | Jones County, TX | Oil & Gas Property | Aug 2025 |
| 5338 | DUGAN | Sedgwick County, KS | Oil Property | May 2025 |
| 5339 | DUGAN | Knox County, OH | Oil Property | Dec 2024 |
| 5340 | DUGAN | Rio Arriba County, NM | Oil & Gas Property | Sep 2025 |
| 5341 | DUGAN FEDERAL | Rio Arriba County, NM | Gas Property | Sep 2025 |
| 5342 | DUGAN GUY | Knox County, OH | Oil Property | Dec 2024 |
| 5343 | DUGAN TR | Barber County, KS | Oil & Gas Property | Jul 2017 |
| 5344 | DUGAN, HOWARD & RUBY DUGAN | Barbour County, WV | Oil & Gas Property | Dec 2021 |
| 5345 | DUGAS-LEBLANC | Assumption Parish, LA | Oil & Gas Property | Nov 2024 |
| 5346 | DUGAT | Chambers County, TX | Oil & Gas Property | Sep 2025 |
| 5347 | DUGGA BOY 53-40 | Loving County, TX | Oil & Gas Property | Sep 2025 |
| 5348 | DUGGAN | Stafford County, KS | Oil Property | Jun 2025 |
| 5349 | DUGGAN 12 FEDERAL | Eddy County, NM | Oil & Gas Property | Oct 2025 |
| 5350 | DUGGAN RWF | Garfield County, CO | Oil & Gas Property | Sep 2025 |
| 5351 | DUGGAN SLAUGHTER | Cochran County, TX | Oil & Gas Property | Sep 2025 |
| 5352 | DUGGAN-HARRELL ( | Stephens County, TX | Oil & Gas Property | Sep 2025 |
| 5353 | DUGGER | Washita County, OK | Oil & Gas Property | Jan 2016 |
| 5354 | DUGGER | Nueces County, TX | Oil & Gas Property | Sep 2025 |
| 5355 | DUGGER | Nueces County, TX | Oil & Gas Property | Aug 2025 |
| 5356 | DUGGER | Roger Mills County, OK | Oil & Gas Property | Sep 2025 |
| 5357 | DUGGER | Dawson County, TX | Oil & Gas Property | Aug 2025 |
| 5358 | DUGGER | Caddo County, OK | Oil & Gas Property | Aug 2025 |
| 5359 | DUGGER | Ellis County, OK | Oil & Gas Property | Aug 2025 |
| 5360 | DUGGER | Caddo Parish, LA | Oil & Gas Property | Nov 2024 |
| 5361 | DUGGER -A | Upshur County, TX | Oil & Gas Property | Sep 2025 |
| 5362 | DUGGER HEWLETT | Somervell County, TX | Oil & Gas Property | Aug 2025 |
| 5363 | DUGGER-SMITH UNIT | Brazos County, TX | Oil & Gas Property | Oct 2021 |
| 5364 | DUGITE | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 5365 | DUGONG | Hughes County, OK | Oil & Gas Property | Aug 2025 |
| 5366 | DUGOUT CREEK 1/12 BO | Roger Mills County, OK | Oil & Gas Property | Aug 2025 |
| 5367 | DUGOUT DRAW FEDERAL | Campbell County, WY | Gas Property | Jun 2012 |
| 5368 | DUGOUT FEDERAL 1-15 | Richland County, MT | Oil & Gas Property | Sep 2025 |
| 5369 | DUHRING | Forest County, PA | Oil & Gas Property | Dec 2024 |
| 5370 | DUIKER STATE | Reeves County, TX | Oil & Gas Property | Aug 2025 |
| 5371 | DUINK | Chautauqua County, NY | Gas Property | Dec 2024 |
| 5372 | DUKE | Carter County, OK | Oil Property | Aug 2025 |
| 5373 | DUKE | Lipscomb County, TX | Oil & Gas Property | Sep 2025 |
| 5374 | DUKE | Ohio County, KY | Oil Property | Dec 2023 |
| 5375 | DUKE | Weld County, CO | Oil & Gas Property | Mar 2020 |
| 5376 | DUKE | Hill County, TX | Gas Property | Aug 2025 |
| 5377 | DUKE | Tarrant County, TX | Gas Property | Sep 2025 |
| 5378 | DUKE | Grady County, OK | Oil & Gas Property | Aug 2025 |
| 5379 | DUKE | Claiborne Parish, LA | Oil & Gas Property | Dec 2024 |
| 5380 | DUKE | Lipscomb County, TX | Oil & Gas Property | Sep 2025 |
| 5381 | DUKE | Grady County, OK | Oil & Gas Property | Jul 2025 |
| 5382 | DUKE | Fisher County, TX | Oil & Gas Property | Sep 2025 |
| 5383 | DUKE | Lipscomb County, TX | Oil & Gas Property | Sep 2025 |
| 5384 | DUKE | Gaines County, TX | Oil & Gas Property | Sep 2025 |
| 5385 | DUKE | Allegany County, NY | Oil & Gas Property | Dec 2024 |
| 5386 | DUKE | Caldwell County, TX | Oil & Gas Property | Sep 2025 |
| 5387 | DUKE | Union County, AR | Oil & Gas Property | Aug 2025 |
| 5388 | DUKE | Ochiltree County, TX | Oil & Gas Property | Sep 2025 |
| 5389 | DUKE | Madison County, TX | Oil & Gas Property | Aug 2025 |
| 5390 | DUKE | Howard County, TX | Oil & Gas Property | Sep 2025 |
| 5391 | DUKE | San Juan County, NM | Oil & Gas Property | Sep 2025 |
| 5392 | DUKE | Grady County, OK | Oil & Gas Property | Jan 2010 |
| 5393 | DUKE | Claiborne Parish, LA | Oil & Gas Property | Nov 2024 |
| 5394 | DUKE | Harrison County, TX | Oil & Gas Property | Aug 2025 |
| 5395 | DUKE | McIntosh County, OK | Gas Property | Aug 2025 |
| 5396 | DUKE 22-27 27 | Reagan County, TX | Oil & Gas Property | Sep 2025 |
| 5397 | DUKE 34X-31 | McKenzie County, ND | Oil & Gas Property | Oct 2025 |
| 5398 | DUKE 8-8 | White County, AR | Gas Property | Jun 2024 |
| 5399 | DUKE BASIL | Lipscomb County, TX | Oil & Gas Property | Aug 2025 |
| 5400 | DUKE BASIL JR | Ochiltree County, TX | Oil & Gas Property | Sep 2025 |