| 28301 | CUELLAR MA | Zapata County, TX | Oil & Gas Property | Jan 2025 |
| 28302 | CUELLAR-GRAVES GAS UNIT | Zapata County, TX | Oil & Gas Property | Jan 2025 |
| 28303 | CUERNO | Lea County, NM | Oil & Gas Property | Feb 2025 |
| 28304 | CUERVO FEDERAL | Lea County, NM | Oil & Gas Property | Feb 2025 |
| 28305 | CUFFMAN | Denton County, TX | Oil & Gas Property | Jan 2025 |
| 28306 | CUGNINI A | La Plata County, CO | Gas Property | Feb 2025 |
| 28307 | CUL-RAY | Wise County, TX | Oil & Gas Property | Dec 2024 |
| 28308 | CULBERSON | Brown County, TX | Oil & Gas Property | Dec 2024 |
| 28309 | CULBERSON | Culberson County, TX | Oil & Gas Property | Jan 2025 |
| 28310 | CULBERSON-HUGHES UNIT | Karnes County, TX | Oil & Gas Property | Jan 2025 |
| 28311 | CULBERSON-PATTESON UNIT | Karnes County, TX | Oil & Gas Property | Jan 2025 |
| 28312 | CULBERT | Ventura County, CA | Oil & Gas Property | Dec 2024 |
| 28313 | CULBERTSON | Clarion County, PA | Oil & Gas Property | Dec 2020 |
| 28314 | CULBERTSON | Carson County, TX | Gas Property | Jan 2025 |
| 28315 | CULBERTSON | Hitchcock County, NE | Oil Property | Dec 2023 |
| 28316 | CULBERTSON | Terrell County, TX | Oil & Gas Property | Jan 2025 |
| 28317 | CULBERTSON | Bienville Parish, LA | Oil & Gas Property | Dec 2024 |
| 28318 | CULBERTSON | Muskingum County, OH | Oil & Gas Property | Dec 2024 |
| 28319 | CULBERTSON | Armstrong County, PA | Gas Property | Dec 2024 |
| 28320 | CULBERTSON | Jones County, TX | Oil & Gas Property | Sep 2023 |
| 28321 | CULBREATH | Weld County, CO | Oil & Gas Property | Mar 2017 |
| 28322 | CULBREATH, BOB | Warren County, KY | Oil & Gas Property | Dec 2023 |
| 28323 | CULEBRA | Garvin County, OK | Oil & Gas Property | Jan 2025 |
| 28324 | CULEBRA 35 | Martin County, TX | Oil & Gas Property | Jan 2025 |
| 28325 | CULEBRA BLV FEDERAL COM | Eddy County, NM | Oil & Gas Property | Feb 2025 |
| 28326 | CULLAR UNIT | Grayson County, TX | Oil & Gas Property | Jan 2025 |
| 28327 | CULLEN | Holmes County, OH | Oil & Gas Property | Dec 2024 |
| 28328 | CULLEN | Andrews County, TX | Oil & Gas Property | Jan 2025 |
| 28329 | CULLEN | Harrison County, TX | Oil & Gas Property | Jan 2025 |
| 28330 | CULLEN | Alfalfa County, OK | Oil & Gas Property | Feb 2025 |
| 28331 | CULLEN | Okmulgee County, OK | Gas Property | Nov 2014 |
| 28332 | CULLEN | Colorado County, TX | Oil & Gas Property | Jan 2025 |
| 28333 | CULLEN | Washington County, OH | Oil & Gas Property | Dec 2024 |
| 28334 | CULLEN L | Washington County, OH | Gas Property | Dec 2024 |
| 28335 | CULLEN UNIT A | Live Oak County, TX | Oil & Gas Property | Jan 2025 |
| 28336 | CULLEN-H | Colorado County, TX | Oil & Gas Property | Jan 2025 |
| 28337 | CULLER | Gray County, TX | Oil & Gas Property | Jan 2025 |
| 28338 | CULLER I | Ashland County, OH | Oil Property | Dec 2024 |
| 28339 | CULLERS | Young County, TX | Oil & Gas Property | Feb 2005 |
| 28340 | CULLERS J. EDGAR GAS UNIT | Rusk County, TX | Oil & Gas Property | Jan 2025 |
| 28341 | CULLEY | Seminole County, OK | Oil Property | Nov 2019 |
| 28342 | CULLEY | Graham County, KS | Oil Property | Aug 2024 |
| 28343 | CULLI | Bee County, TX | Oil & Gas Property | Mar 2019 |
| 28344 | CULLINAN FEE | Caddo Parish, LA | Oil & Gas Property | Jan 2025 |
| 28345 | CULLINS FEDERAL | Rio Arriba County, NM | Oil & Gas Property | Feb 2025 |
| 28346 | CULLISON | Johnson County, TX | Gas Property | Sep 2024 |
| 28347 | CULLISON | Stevens County, KS | Oil & Gas Property | Dec 2024 |
| 28348 | CULLISON | Licking County, OH | Oil & Gas Property | Dec 2024 |
| 28349 | CULLISON | Licking County, OH | Oil & Gas Property | Dec 2010 |
| 28350 | CULLISON | Coshocton County, OH | Oil & Gas Property | Dec 2022 |
| 28351 | CULLISON 2 | Stevens County, KS | Oil Property | Dec 2019 |
| 28352 | CULLUM | Wichita County, TX | Oil Property | Jan 2025 |
| 28353 | CULLUM | Gray County, TX | Oil & Gas Property | Jan 2025 |
| 28354 | CULLUM | Wichita County, TX | Oil & Gas Property | Mar 2010 |
| 28355 | CULLUM | Wheeler County, TX | Oil & Gas Property | Jan 2025 |
| 28356 | CULLUM | Freestone County, TX | Oil & Gas Property | Jan 2025 |
| 28357 | CULLY | Seminole County, OK | Oil & Gas Property | Jan 2025 |
| 28358 | CULLY | Sumner County, KS | Oil Property | Nov 2024 |
| 28359 | CULLY 6/7 AP | Ellis County, OK | Oil & Gas Property | Jan 2025 |
| 28360 | CULP | Noble County, OK | Oil & Gas Property | Oct 2016 |
| 28361 | CULP | Caddo County, OK | Oil & Gas Property | Jan 2025 |
| 28362 | CULP | Chautauqua County, KS | Oil & Gas Property | Nov 2024 |
| 28363 | CULP DRAW | Johnson County, WY | Oil & Gas Property | Jan 2014 |
| 28364 | CULP DRAW | Johnson County, WY | Oil & Gas Property | Mar 2025 |
| 28365 | CULP WILLIAM E | Cooke County, TX | Oil & Gas Property | Jan 2025 |
| 28366 | CULPEPPER | Bienville Parish, LA | Gas Property | Dec 2024 |
| 28367 | CULPEPPER | Gregg County, TX | Oil & Gas Property | Jan 2025 |
| 28368 | CULPEPPER | Escambia County, AL | Oil & Gas Property | Apr 1992 |
| 28369 | CULPEPPER | Ouachita Parish, LA | Gas Property | Dec 2024 |
| 28370 | CULPEPPER | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 28371 | CULPEPPER | Frio County, TX | Oil & Gas Property | Jan 2025 |
| 28372 | CULPEPPER | Milam County, TX | Oil & Gas Property | Jan 2025 |
| 28373 | CULPEPPER | Gonzales County, TX | Oil & Gas Property | Jan 2025 |
| 28374 | CULPEPPER MARTIN | San Juan County, NM | Oil & Gas Property | Feb 2025 |
| 28375 | CULPEPPER UNIT A | Dewitt County, TX | Oil & Gas Property | Jan 2025 |
| 28376 | CULPEPPER, RUSS & OLIVE | Kanawha County, WV | Oil & Gas Property | Dec 2021 |
| 28377 | CULTON ELVIS | Johnson County, TX | Gas Property | Jan 2025 |
| 28378 | CULTON, GOLDEN & ANDERSON | Clay County, KY | Oil & Gas Property | Dec 2023 |
| 28379 | CULVER | Gregg County, TX | Oil & Gas Property | Jan 2025 |
| 28380 | CULVER | Boulder County, CO | Oil & Gas Property | Oct 2023 |
| 28381 | CULVER | Union County, KY | Oil Property | Dec 2023 |
| 28382 | CULVER | Harper County, KS | Oil & Gas Property | Dec 2024 |
| 28383 | CULVER | Woodson County, KS | Oil Property | Jun 2024 |
| 28384 | CULVER D | Throckmorton County, TX | Oil & Gas Property | Feb 2023 |
| 28385 | CULVER OIL & MINERALS | Union County, KY | Oil Property | Dec 2022 |
| 28386 | CULVER, G.W | Gregg County, TX | Oil & Gas Property | Jan 2025 |
| 28387 | CULVERIN 1-32H | Richland County, MT | Oil & Gas Property | Feb 2025 |
| 28388 | CULVERWELL | Moffat County, CO | Gas Property | Dec 2008 |
| 28389 | CULWELL | Cheyenne County, KS | Gas Property | Dec 2024 |
| 28390 | CULWELL | Cheyenne County, KS | Oil Property | Dec 2024 |
| 28391 | CULWELL | Cheyenne County, KS | Oil Property | Nov 2024 |
| 28392 | CULWELL UNIT 4-32 | Cheyenne County, KS | Oil Property | Dec 2024 |
| 28393 | CULWIN 35 FEDERAL | Eddy County, NM | Oil & Gas Property | Mar 2025 |
| 28394 | CULWIN QUEEN UNIT | Eddy County, NM | Oil & Gas Property | Feb 2025 |
| 28395 | CUMBERLAND | Greene County, PA | Gas Property | Dec 2024 |
| 28396 | CUMBERLAND | Midland County, TX | Oil & Gas Property | Jan 2025 |
| 28397 | CUMBERLAND 1-8H10 | Marshall County, OK | Oil & Gas Property | Jan 2025 |
| 28398 | CUMBERLAND 33-28-13 1H | Woods County, OK | Oil & Gas Property | Jan 2025 |
| 28399 | CUMBERLAND COLLEGE | Whitley County, KY | Oil & Gas Property | Aug 2022 |
| 28400 | CUMBERLAND MINERAL | Whitley County, KY | Gas Property | Dec 2022 |