| 27201 | COURTLAND CO | Kanawha County, WV | Gas Property | Dec 2021 |
| 27202 | COURTLAND COMPANY | Kanawha County, WV | Gas Property | Dec 2021 |
| 27203 | COURTLAND MYERS | Lea County, NM | Oil & Gas Property | Jan 2026 |
| 27204 | COURTNEY | Mercer County, PA | Gas Property | Dec 2025 |
| 27205 | COURTNEY | Mahoning County, OH | Oil & Gas Property | Dec 2024 |
| 27206 | COURTNEY | Parker County, TX | Oil & Gas Property | Sep 2025 |
| 27207 | COURTNEY | Ector County, TX | Oil & Gas Property | Dec 2025 |
| 27208 | COURTNEY | Roosevelt County, MT | Oil & Gas Property | Jan 2026 |
| 27209 | COURTNEY | Weld County, CO | Oil & Gas Property | Jul 2014 |
| 27210 | COURTNEY | Tioga County, PA | Gas Property | Jan 2026 |
| 27211 | COURTNEY | Bienville Parish, LA | Oil & Gas Property | Apr 2001 |
| 27212 | COURTNEY | Boone County, WV | Oil & Gas Property | Dec 2021 |
| 27213 | COURTNEY | Beaver County, OK | Oil & Gas Property | Aug 2025 |
| 27214 | COURTNEY | Caddo County, OK | Oil Property | Dec 2018 |
| 27215 | COURTNEY | Grady County, OK | Oil & Gas Property | Dec 2025 |
| 27216 | COURTNEY | Canadian County, OK | Oil & Gas Property | Jan 2026 |
| 27217 | COURTNEY | Hemphill County, TX | Oil & Gas Property | Dec 2025 |
| 27218 | COURTNEY | Fresno County, CA | Oil & Gas Property | Apr 2010 |
| 27219 | COURTNEY | Seminole County, OK | Oil Property | Dec 2025 |
| 27220 | COURTNEY | Canadian County, OK | Oil & Gas Property | Jan 2026 |
| 27221 | COURTNEY | Caddo Parish, LA | Oil Property | Jan 2025 |
| 27222 | COURTNEY UNIT | Tarrant County, TX | Oil & Gas Property | Dec 2025 |
| 27223 | COURTRIGHT | Garvin County, OK | Oil & Gas Property | Dec 2025 |
| 27224 | COURTS | Haskell County, OK | Gas Property | Dec 2025 |
| 27225 | COURY 18 | Mesa County, CO | Oil & Gas Property | Apr 2005 |
| 27226 | COUSIN EDDY | Glasscock County, TX | Oil & Gas Property | Nov 2025 |
| 27227 | COUSIN EDDY FEDERAL UNIT | Eddy County, NM | Oil & Gas Property | Jan 2026 |
| 27228 | COUSIN WILLARD 450 | Yoakum County, TX | Oil & Gas Property | Dec 2025 |
| 27229 | COUSINS | Arenac County, MI | Oil Property | Dec 2024 |
| 27230 | COUSINS | Sterling County, TX | Oil & Gas Property | Jul 2024 |
| 27231 | COUSINS | Gray County, TX | Gas Property | Dec 2025 |
| 27232 | COUSINS CS FEDERAL | Campbell County, WY | Gas Property | Jan 2015 |
| 27233 | COUSINS FEDERAL COM 2 | Campbell County, WY | Oil & Gas Property | Jan 2026 |
| 27234 | COUTRET | Goliad County, TX | Oil & Gas Property | Nov 2025 |
| 27235 | COUTURE | Rooks County, KS | Oil Property | Sep 2025 |
| 27236 | COVAL | De Soto Parish, LA | Gas Property | Dec 2024 |
| 27237 | COVALT | Woodward County, OK | Gas Property | Apr 2008 |
| 27238 | COVARRUBIAS | Santa Barbara County, CA | Oil & Gas Property | Feb 1989 |
| 27239 | COVEL | Garvin County, OK | Oil & Gas Property | Dec 2025 |
| 27240 | COVEL TRUST | Seward County, KS | Oil & Gas Property | Sep 2025 |
| 27241 | COVELESKI 1-35H | Williams County, ND | Oil & Gas Property | Jan 2026 |
| 27242 | COVELESKI 26-35 | Williams County, ND | Oil & Gas Property | Jan 2026 |
| 27243 | COVER | Hartley County, TX | Oil Property | Jun 2013 |
| 27244 | COVER | Okmulgee County, OK | Oil Property | Dec 2025 |
| 27245 | COVERED BRIDGE | McKenzie County, ND | Oil & Gas Property | Aug 2023 |
| 27246 | COVERT | Monroe County, OH | Oil & Gas Property | Dec 2025 |
| 27247 | COVERT | Dimmit County, TX | Oil & Gas Property | Dec 2025 |
| 27248 | COVERT 34-183 | Ward County, TX | Oil & Gas Property | Dec 2025 |
| 27249 | COVERT COM | Eddy County, NM | Oil & Gas Property | Jan 2026 |
| 27250 | COVEY | Fresno County, CA | Oil & Gas Property | Aug 2014 |
| 27251 | COVEY | Hockley County, TX | Oil Property | Dec 2025 |
| 27252 | COVEY | Lincoln County, OK | Oil & Gas Property | Jan 2026 |
| 27253 | COVEYTOWN | Sullivan County, PA | Gas Property | Jan 2026 |
| 27254 | COVILL | Allegany County, NY | Oil & Gas Property | Dec 2024 |
| 27255 | COVIN FESS | Harrison County, TX | Oil & Gas Property | Feb 2000 |
| 27256 | COVINGTON | Terry County, TX | Oil Property | Jan 2026 |
| 27257 | COVINGTON | Bradford County, PA | Gas Property | Jan 2026 |
| 27258 | COVINGTON | Stephens County, OK | Oil Property | Mar 2025 |
| 27259 | COVINGTON | Bossier Parish, LA | Oil & Gas Property | Jul 1992 |
| 27260 | COVINGTON | Stonewall County, TX | Oil & Gas Property | Dec 2025 |
| 27261 | COVINGTON | Baylor County, TX | Oil & Gas Property | Jan 2023 |
| 27262 | COVINGTON | Kingman County, KS | Gas Property | Sep 2025 |
| 27263 | COVINGTON | Smith County, TX | Oil & Gas Property | Dec 2025 |
| 27264 | COVINGTON | Reeves County, TX | Oil & Gas Property | Dec 2025 |
| 27265 | COVINGTON | Wise County, TX | Oil & Gas Property | Dec 2025 |
| 27266 | COVINGTON | Anderson County, TX | Oil & Gas Property | Dec 2025 |
| 27267 | COVINGTON 33 | Andrews County, TX | Oil & Gas Property | Dec 2025 |
| 27268 | COVINGTON 34-224 | Ward County, TX | Oil & Gas Property | Dec 2025 |
| 27269 | COVINGTON A FEDERAL | Lea County, NM | Oil & Gas Property | Jan 2026 |
| 27270 | COVINGTON ACRES | Hill County, TX | Gas Property | Dec 2025 |
| 27271 | COVINGTON GU | Logan County, AR | Gas Property | May 2024 |
| 27272 | COVINGTON H. ESTATE | Terry County, TX | Oil & Gas Property | Dec 2025 |
| 27273 | COVINGTON JANIE ET AL | Terry County, TX | Oil & Gas Property | Dec 2025 |
| 27274 | COVINGTON PROSPECT PAD R (WATKINS) 1 | Tioga County, PA | Gas Property | Jan 2026 |
| 27275 | COW BAYOU STATE | Orange County, TX | Oil & Gas Property | Dec 2025 |
| 27276 | COW BELL 9 4 FEDERAL COM | Lea County, NM | Oil & Gas Property | Jan 2026 |
| 27277 | COW CREEK | Carbon County, WY | Oil & Gas Property | Dec 2025 |
| 27278 | COW CREEK | Lincoln County, WY | Oil & Gas Property | Jan 2026 |
| 27279 | COW CREEK CORPORATION ET AL | Starr County, TX | Oil & Gas Property | Dec 2025 |
| 27280 | COW HOLLOW | Lincoln County, WY | Oil & Gas Property | Jan 2026 |
| 27281 | COW SKULL 11-89-18 | Gunnison County, CO | Gas Property | Jan 2026 |
| 27282 | COW TOWN | Leon County, TX | Oil & Gas Property | Dec 2025 |
| 27283 | COWABUNGA 1207 | Canadian County, OK | Oil & Gas Property | Dec 2025 |
| 27284 | COWAN | Baylor County, TX | Oil & Gas Property | Dec 2025 |
| 27285 | COWAN | Beaver County, OK | Oil & Gas Property | Feb 2018 |
| 27286 | COWAN | Morton County, KS | Gas Property | Sep 2025 |
| 27287 | COWAN | Okmulgee County, OK | Oil Property | Dec 2025 |
| 27288 | COWAN | Blaine County, OK | Oil & Gas Property | Dec 2025 |
| 27289 | COWAN | Stephens County, OK | Oil Property | Jan 2026 |
| 27290 | COWAN | Tillman County, OK | Oil Property | Oct 2017 |
| 27291 | COWAN | Smith County, TX | Oil & Gas Property | Dec 2025 |
| 27292 | COWAN | Beaver County, OK | Gas Property | Dec 2025 |
| 27293 | COWAN | Lipscomb County, TX | Oil & Gas Property | Nov 2025 |
| 27294 | COWAN | Carter County, OK | Oil & Gas Property | Dec 2025 |
| 27295 | COWAN | Coleman County, TX | Oil & Gas Property | Dec 2025 |
| 27296 | COWAN 1 | Blaine County, OK | Oil & Gas Property | Dec 2025 |
| 27297 | COWAN FEE | Kern County, CA | Oil Property | Jul 1996 |
| 27298 | COWAN G | Smith County, TX | Oil & Gas Property | Dec 2025 |
| 27299 | COWAN GAS UNIT | Morton County, KS | Gas Property | Sep 2025 |
| 27300 | COWAN TRUST 1 | Beaver County, OK | Oil & Gas Property | May 2024 |