| 10401 | CU DOWNS FED 28 | Converse County, WY | Oil & Gas Property | Mar 2026 |
| 10402 | CU DOWNS FED 3 | Converse County, WY | Oil & Gas Property | Mar 2026 |
| 10403 | CU REPP FED 09-213769-1XTPH | Converse County, WY | Oil & Gas Property | Mar 2026 |
| 10404 | CUADRILLA | Grady County, OK | Oil & Gas Property | Feb 2026 |
| 10405 | CUADRITO AZO FEDERAL | Eddy County, NM | Oil & Gas Property | Mar 2026 |
| 10406 | CUATRO 21 | Martin County, TX | Oil & Gas Property | Jan 2026 |
| 10407 | CUATRO HIJOS FEE | Lea County, NM | Oil & Gas Property | Mar 2026 |
| 10408 | CUB 56-2-33 1H | Reeves County, TX | Oil & Gas Property | Feb 2026 |
| 10409 | CUB CREEK COAL CO. A | Wyoming County, WV | Gas Property | Dec 2021 |
| 10410 | CUB FE | Johnson County, WY | Oil & Gas Property | Feb 2026 |
| 10411 | CUBBISON | Guernsey County, OH | Oil Property | Dec 2024 |
| 10412 | CUBBON | Venango County, PA | Oil Property | Dec 1997 |
| 10413 | CUBBON | Venango County, PA | Gas Property | Dec 2025 |
| 10414 | CUBBON | Venango County, PA | Oil & Gas Property | Dec 2025 |
| 10415 | CUBBON LUMBER CO | Warren County, PA | Gas Property | Dec 2025 |
| 10416 | CUBINE | Gray County, TX | Gas Property | Feb 2026 |
| 10417 | CUBINE | Clay County, TX | Oil & Gas Property | Feb 2026 |
| 10418 | CUCCIA COM | San Juan County, NM | Oil & Gas Property | Mar 2026 |
| 10419 | CUCCIA STATE COM | San Juan County, NM | Gas Property | Mar 2026 |
| 10420 | CUCCIA-U.S.L | Kern County, CA | Oil & Gas Property | Jul 2025 |
| 10421 | CUCH 10-17-2-1E | Uintah County, UT | Oil & Gas Property | Mar 2026 |
| 10422 | CUDA 1 | Williams County, ND | Oil & Gas Property | Mar 2026 |
| 10423 | CUDAHY | Kent County, MI | Oil Property | Mar 2026 |
| 10424 | CUDD | Ochiltree County, TX | Oil & Gas Property | Feb 2026 |
| 10425 | CUDE | Chautauqua County, KS | Oil & Gas Property | Jul 2014 |
| 10426 | CUDE A | Wise County, TX | Oil & Gas Property | Feb 2026 |
| 10427 | CUDE W.T | Caldwell County, TX | Oil & Gas Property | Jan 2026 |
| 10428 | CUDJO | Seminole County, OK | Oil Property | Mar 2025 |
| 10429 | CUDJO | Seminole County, OK | Oil Property | Feb 2026 |
| 10430 | CUDNEY | Edwards County, KS | Oil & Gas Property | Jan 2026 |
| 10431 | CUELLAR | Zapata County, TX | Oil & Gas Property | Feb 2026 |
| 10432 | CUELLAR | Zapata County, TX | Oil & Gas Property | Feb 2026 |
| 10433 | CUELLAR | Zapata County, TX | Oil & Gas Property | Feb 2026 |
| 10434 | CUELLAR | Atascosa County, TX | Oil & Gas Property | Feb 2026 |
| 10435 | CUELLAR | Zapata County, TX | Oil & Gas Property | Jan 2026 |
| 10436 | CUELLAR FERNA | Zapata County, TX | Oil & Gas Property | Feb 2026 |
| 10437 | CUELLAR MA | Zapata County, TX | Oil & Gas Property | Feb 2026 |
| 10438 | CUELLAR-GRAVES GAS UNIT | Zapata County, TX | Oil & Gas Property | Feb 2026 |
| 10439 | CUERNO | Lea County, NM | Oil & Gas Property | Mar 2026 |
| 10440 | CUERVO FEDERAL | Lea County, NM | Oil & Gas Property | Mar 2026 |
| 10441 | CUFFMAN | Denton County, TX | Oil & Gas Property | Feb 2026 |
| 10442 | CUGNINI A | La Plata County, CO | Gas Property | Feb 2026 |
| 10443 | CUL-RAY | Wise County, TX | Oil & Gas Property | Feb 2026 |
| 10444 | CULBERSON | Brown County, TX | Oil & Gas Property | Jan 2026 |
| 10445 | CULBERSON | Culberson County, TX | Oil & Gas Property | Feb 2026 |
| 10446 | CULBERSON-HUGHES UNIT | Karnes County, TX | Oil & Gas Property | Feb 2026 |
| 10447 | CULBERSON-PATTESON UNIT | Karnes County, TX | Oil & Gas Property | Feb 2026 |
| 10448 | CULBERT | Ventura County, CA | Oil & Gas Property | Mar 2026 |
| 10449 | CULBERTSON | Clarion County, PA | Oil & Gas Property | Dec 2025 |
| 10450 | CULBERTSON | Carson County, TX | Gas Property | Feb 2026 |
| 10451 | CULBERTSON | Hitchcock County, NE | Oil Property | Dec 2024 |
| 10452 | CULBERTSON | Terrell County, TX | Oil & Gas Property | Feb 2026 |
| 10453 | CULBERTSON | Bienville Parish, LA | Oil & Gas Property | Dec 2024 |
| 10454 | CULBERTSON | Muskingum County, OH | Oil & Gas Property | Dec 2025 |
| 10455 | CULBERTSON | Armstrong County, PA | Gas Property | Dec 2025 |
| 10456 | CULBERTSON | Jones County, TX | Oil & Gas Property | Sep 2023 |
| 10457 | CULBREATH | Weld County, CO | Oil & Gas Property | Mar 2017 |
| 10458 | CULBREATH, BOB | Warren County, KY | Oil & Gas Property | Dec 2023 |
| 10459 | CULEBRA BLV FEDERAL COM | Eddy County, NM | Oil & Gas Property | Mar 2026 |
| 10460 | CULHANE | La Plata County, CO | Gas Property | Feb 2026 |
| 10461 | CULLAR UNIT | Grayson County, TX | Oil & Gas Property | Feb 2026 |
| 10462 | CULLEN | Holmes County, OH | Oil & Gas Property | Dec 2025 |
| 10463 | CULLEN | Andrews County, TX | Oil & Gas Property | Feb 2026 |
| 10464 | CULLEN | Harrison County, TX | Oil & Gas Property | Feb 2026 |
| 10465 | CULLEN | Alfalfa County, OK | Oil & Gas Property | Mar 2026 |
| 10466 | CULLEN | Okmulgee County, OK | Gas Property | Nov 2014 |
| 10467 | CULLEN | Colorado County, TX | Oil & Gas Property | Feb 2026 |
| 10468 | CULLEN | Washington County, OH | Oil & Gas Property | Dec 2025 |
| 10469 | CULLEN UNIT A | Live Oak County, TX | Oil & Gas Property | Feb 2026 |
| 10470 | CULLEN-H | Colorado County, TX | Oil & Gas Property | Feb 2026 |
| 10471 | CULLER | Gray County, TX | Oil & Gas Property | Feb 2026 |
| 10472 | CULLER I | Ashland County, OH | Oil Property | Dec 2025 |
| 10473 | CULLERS | Young County, TX | Oil & Gas Property | Feb 2005 |
| 10474 | CULLERS J. EDGAR GAS UNIT | Rusk County, TX | Oil & Gas Property | Feb 2026 |
| 10475 | CULLEY | Seminole County, OK | Oil Property | Nov 2019 |
| 10476 | CULLEY | Graham County, KS | Oil Property | Oct 2025 |
| 10477 | CULLI | Bee County, TX | Oil & Gas Property | Mar 2019 |
| 10478 | CULLINAN FEE | Caddo Parish, LA | Oil & Gas Property | Jan 2025 |
| 10479 | CULLINS FEDERAL | Rio Arriba County, NM | Oil & Gas Property | Mar 2026 |
| 10480 | CULLISON | Johnson County, TX | Gas Property | Dec 2023 |
| 10481 | CULLISON | Stevens County, KS | Oil & Gas Property | Jan 2026 |
| 10482 | CULLISON | Licking County, OH | Oil & Gas Property | Dec 2024 |
| 10483 | CULLISON | Licking County, OH | Oil & Gas Property | Dec 2010 |
| 10484 | CULLISON | Coshocton County, OH | Oil & Gas Property | Dec 2024 |
| 10485 | CULLISON 2 | Stevens County, KS | Oil Property | Jul 2025 |
| 10486 | CULLUM | Wichita County, TX | Oil Property | Feb 2026 |
| 10487 | CULLUM | Gray County, TX | Oil & Gas Property | Feb 2026 |
| 10488 | CULLUM | Wheeler County, TX | Oil & Gas Property | Feb 2026 |
| 10489 | CULLUM | Freestone County, TX | Oil & Gas Property | Feb 2026 |
| 10490 | CULLY | Seminole County, OK | Oil & Gas Property | Mar 2026 |
| 10491 | CULLY | Ellis County, OK | Oil & Gas Property | Feb 2026 |
| 10492 | CULLY | Sumner County, KS | Oil Property | Dec 2025 |
| 10493 | CULP | Noble County, OK | Oil & Gas Property | Oct 2016 |
| 10494 | CULP | Caddo County, OK | Oil & Gas Property | Feb 2026 |
| 10495 | CULP | Chautauqua County, KS | Oil & Gas Property | Nov 2024 |
| 10496 | CULP DRAW | Johnson County, WY | Oil & Gas Property | Jan 2014 |
| 10497 | CULP DRAW | Johnson County, WY | Oil & Gas Property | Mar 2026 |
| 10498 | CULP WILLIAM E | Cooke County, TX | Oil & Gas Property | Feb 2026 |
| 10499 | CULPEPPER | Bienville Parish, LA | Gas Property | Dec 2024 |
| 10500 | CULPEPPER | Gregg County, TX | Oil & Gas Property | Feb 2026 |