| 5201 | DUDECK HEIRS GAS UNIT | Harrison County, TX | Oil & Gas Property | May 2025 |
| 5202 | DUDEK 1 | Logan County, OK | Oil & Gas Property | Apr 2025 |
| 5203 | DUDERSTADT | Dewitt County, TX | Oil & Gas Property | Apr 2022 |
| 5204 | DUDERSTADT | Goliad County, TX | Oil & Gas Property | May 2013 |
| 5205 | DUDERSTADT | Dewitt County, TX | Oil & Gas Property | May 2025 |
| 5206 | DUDGEON | Cowley County, KS | Oil Property | Feb 1982 |
| 5207 | DUDGEON | Kiowa County, OK | Oil Property | Apr 2004 |
| 5208 | DUDGEON | Knox County, OH | Oil & Gas Property | Dec 2024 |
| 5209 | DUDGEON 1 | Morton County, KS | Gas Property | Jan 2010 |
| 5210 | DUDLEY | Stevens County, KS | Gas Property | Apr 2025 |
| 5211 | DUDLEY | Kern County, CA | Oil Property | Dec 2006 |
| 5212 | DUDLEY | Carter County, OK | Oil & Gas Property | Sep 2007 |
| 5213 | DUDLEY | Eastland County, TX | Oil & Gas Property | May 2025 |
| 5214 | DUDLEY | Neosho County, KS | Oil & Gas Property | Apr 2025 |
| 5215 | DUDLEY | Allen County, KS | Oil Property | Dec 2024 |
| 5216 | DUDLEY | Noble County, OH | Oil & Gas Property | Dec 2021 |
| 5217 | DUDLEY | Ochiltree County, TX | Oil & Gas Property | May 2025 |
| 5218 | DUDLEY | Rusk County, TX | Oil & Gas Property | Apr 2022 |
| 5219 | DUDLEY | Barry County, MI | Oil Property | Jun 2025 |
| 5220 | DUDLEY | Moore County, TX | Gas Property | May 2025 |
| 5221 | DUDLEY | Lincoln County, OK | Oil & Gas Property | Feb 2009 |
| 5222 | DUDLEY | Monterey County, CA | Oil & Gas Property | May 2025 |
| 5223 | DUDLEY | Noble County, OH | Gas Property | Dec 2024 |
| 5224 | DUDLEY | Crockett County, TX | Oil & Gas Property | May 2025 |
| 5225 | DUDLEY | Runnels County, TX | Oil & Gas Property | May 2025 |
| 5226 | DUDLEY | Los Angeles County, CA | Oil Property | Nov 1986 |
| 5227 | DUDLEY 10 | Winkler County, TX | Oil & Gas Property | May 2025 |
| 5228 | DUDLEY DAWSON | McKenzie County, ND | Oil & Gas Property | Jun 2025 |
| 5229 | DUDLEY FARMS UNIT | Hill County, TX | Oil & Gas Property | May 2025 |
| 5230 | DUDLEY TOWNSHIP | Haskell County, KS | Oil Property | Jan 2024 |
| 5231 | DUDLEY-MAY | Guernsey County, OH | Oil & Gas Property | Dec 2012 |
| 5232 | DUDREY | Pratt County, KS | Oil & Gas Property | Apr 2025 |
| 5233 | DUDREY | Stafford County, KS | Oil Property | Sep 2024 |
| 5234 | DUDREY | Stafford County, KS | Oil Property | Mar 2025 |
| 5235 | DUDREY | Seward County, KS | Gas Property | Apr 2025 |
| 5236 | DUDREY | Stafford County, KS | Oil & Gas Property | Apr 2025 |
| 5237 | DUDREY | Stafford County, KS | Oil Property | Apr 2025 |
| 5238 | DUELL | Weld County, CO | Oil & Gas Property | Feb 2019 |
| 5239 | DUELL | Sherman County, KS | Gas Property | Apr 2025 |
| 5240 | DUELL 32-6 5 | La Plata County, CO | Gas Property | May 2025 |
| 5241 | DUELL TRUSTS 3 | Cheyenne County, KS | Gas Property | Apr 2025 |
| 5242 | DUEPPENGIESSER | Wyoming County, NY | Gas Property | Dec 2024 |
| 5243 | DUER | Woodward County, OK | Oil & Gas Property | May 2025 |
| 5244 | DUERKSEN | Marion County, KS | Oil & Gas Property | Dec 2024 |
| 5245 | DUERR UNIT | Tuscarawas County, OH | Oil & Gas Property | Dec 2023 |
| 5246 | DUERR, THOMAS | Ritchie County, WV | Oil & Gas Property | Dec 2021 |
| 5247 | DUERSON | Jack County, TX | Oil & Gas Property | Apr 2025 |
| 5248 | DUERSON | Jack County, TX | Oil & Gas Property | May 2025 |
| 5249 | DUESER | Rice County, KS | Oil Property | Mar 2025 |
| 5250 | DUESING | Finney County, KS | Gas Property | Apr 2025 |
| 5251 | DUESSEN-DUNN UNIT | Denton County, TX | Oil & Gas Property | Sep 2023 |
| 5252 | DUET 148-93-18C-07-1H | Dunn County, ND | Oil & Gas Property | Jun 2025 |
| 5253 | DUFERS | San Juan County, NM | Oil & Gas Property | Jul 2008 |
| 5254 | DUFF | San Juan County, NM | Gas Property | May 2025 |
| 5255 | DUFF | Roger Mills County, OK | Oil & Gas Property | Apr 2025 |
| 5256 | DUFF | San Juan County, NM | Gas Property | May 2025 |
| 5257 | DUFF | Okmulgee County, OK | Oil & Gas Property | Apr 2025 |
| 5258 | DUFF | Washington County, OH | Oil Property | Dec 2024 |
| 5259 | DUFF | Westmoreland County, PA | Gas Property | May 2025 |
| 5260 | DUFF | Polk County, TX | Oil & Gas Property | Jan 2023 |
| 5261 | DUFF | Tom Green County, TX | Oil & Gas Property | May 2025 |
| 5262 | DUFF 'O' 1 | Haskell County, KS | Oil Property | Mar 2015 |
| 5263 | DUFF 7 | Glasscock County, TX | Oil & Gas Property | May 2025 |
| 5264 | DUFF A. H. ESTATE | Schleicher County, TX | Oil & Gas Property | May 2025 |
| 5265 | DUFF B FEDERAL | Sandoval County, NM | Gas Property | May 2025 |
| 5266 | DUFF GAS COM | San Juan County, NM | Oil & Gas Property | May 2025 |
| 5267 | DUFF, DONALD 15 | Neosho County, KS | Gas Property | Apr 2025 |
| 5268 | DUFF-SHELL | Kern County, CA | Oil & Gas Property | Jun 2025 |
| 5269 | DUFFER | Eastland County, TX | Oil & Gas Property | May 2025 |
| 5270 | DUFFIELD | Eddy County, NM | Oil & Gas Property | May 2025 |
| 5271 | DUFFIELD | Bowman County, ND | Oil & Gas Property | Feb 2008 |
| 5272 | DUFFIELD | Clay County, WV | Oil & Gas Property | Dec 2021 |
| 5273 | DUFFIELD | Gilmer County, WV | Gas Property | Dec 2021 |
| 5274 | DUFFIELD | Calhoun County, WV | Oil & Gas Property | Dec 2021 |
| 5275 | DUFFIELD | Bradford County, PA | Gas Property | May 2025 |
| 5276 | DUFFLEMEYER, MICHAEL B. ,. ET AL | Doddridge County, WV | Oil & Gas Property | Dec 2021 |
| 5277 | DUFFMAN 253 | Martin County, TX | Oil & Gas Property | May 2025 |
| 5278 | DUFFORD | Ford County, KS | Oil & Gas Property | Apr 2025 |
| 5279 | DUFFY | Wharton County, TX | Oil & Gas Property | May 2025 |
| 5280 | DUFFY | Jack County, TX | Oil & Gas Property | May 2025 |
| 5281 | DUFFY | Kingfisher County, OK | Oil & Gas Property | Apr 2025 |
| 5282 | DUFFY | Okmulgee County, OK | Gas Property | Feb 2024 |
| 5283 | DUFFY | Franklin County, KS | Oil Property | Apr 2025 |
| 5284 | DUFFY 15-34H | Williams County, ND | Oil & Gas Property | Jun 2025 |
| 5285 | DUFFY ESTATE D | McKean County, PA | Oil & Gas Property | Dec 2024 |
| 5286 | DUFORT | Stephens County, OK | Oil & Gas Property | Apr 2025 |
| 5287 | DUFORT | McClain County, OK | Oil & Gas Property | May 2025 |
| 5288 | DUFOUR 32-6 2 | La Plata County, CO | Gas Property | May 2025 |
| 5289 | DUGAN | De Soto Parish, LA | Gas Property | Dec 2024 |
| 5290 | DUGAN | Nowata County, OK | Gas Property | May 2016 |
| 5291 | DUGAN | Knox County, OH | Oil Property | Dec 2024 |
| 5292 | DUGAN | Jones County, TX | Oil & Gas Property | May 2025 |
| 5293 | DUGAN | Sedgwick County, KS | Oil Property | Sep 2024 |
| 5294 | DUGAN | Knox County, OH | Oil Property | Dec 2024 |
| 5295 | DUGAN | Rio Arriba County, NM | Oil & Gas Property | May 2025 |
| 5296 | DUGAN GUY | Knox County, OH | Oil Property | Dec 2024 |
| 5297 | DUGAN TR | Barber County, KS | Oil & Gas Property | Jul 2017 |
| 5298 | DUGAN, HOWARD & RUBY DUGAN | Barbour County, WV | Oil & Gas Property | Dec 2021 |
| 5299 | DUGAS-LEBLANC | Assumption Parish, LA | Oil & Gas Property | Nov 2024 |
| 5300 | DUGAT | Chambers County, TX | Oil & Gas Property | May 2025 |