| 10501 | CUDA 1 | Williams County, ND | Oil & Gas Property | Jun 2026 |
| 10502 | CUDAHY | Kent County, MI | Oil Property | Jun 2026 |
| 10503 | CUDD | Ochiltree County, TX | Oil & Gas Property | May 2026 |
| 10504 | CUDE | Chautauqua County, KS | Oil & Gas Property | Jul 2014 |
| 10505 | CUDE A | Wise County, TX | Oil & Gas Property | Jun 2026 |
| 10506 | CUDE W.T | Caldwell County, TX | Oil & Gas Property | May 2026 |
| 10507 | CUDJO | Seminole County, OK | Oil Property | Mar 2025 |
| 10508 | CUDJO | Seminole County, OK | Oil Property | May 2026 |
| 10509 | CUDNEY | Edwards County, KS | Oil & Gas Property | Apr 2026 |
| 10510 | CUELLAR | Zapata County, TX | Oil & Gas Property | Jun 2026 |
| 10511 | CUELLAR | Zapata County, TX | Oil & Gas Property | Jun 2026 |
| 10512 | CUELLAR | Zapata County, TX | Oil & Gas Property | Jun 2026 |
| 10513 | CUELLAR | Atascosa County, TX | Oil & Gas Property | Jun 2026 |
| 10514 | CUELLAR | Zapata County, TX | Oil & Gas Property | Jun 2026 |
| 10515 | CUELLAR FERNA | Zapata County, TX | Oil & Gas Property | Jun 2026 |
| 10516 | CUELLAR MA | Zapata County, TX | Oil & Gas Property | Jun 2026 |
| 10517 | CUELLAR-GRAVES GAS UNIT | Zapata County, TX | Oil & Gas Property | Jun 2026 |
| 10518 | CUERNO | Lea County, NM | Oil & Gas Property | Jun 2026 |
| 10519 | CUERVO FEDERAL | Lea County, NM | Oil & Gas Property | Jun 2026 |
| 10520 | CUFFMAN | Denton County, TX | Oil & Gas Property | Jun 2026 |
| 10521 | CUGNINI A | La Plata County, CO | Gas Property | May 2026 |
| 10522 | CUL-RAY | Wise County, TX | Oil & Gas Property | May 2026 |
| 10523 | CULBERSON | Brown County, TX | Oil & Gas Property | May 2026 |
| 10524 | CULBERSON | Culberson County, TX | Oil & Gas Property | Jun 2026 |
| 10525 | CULBERSON-HUGHES UNIT | Karnes County, TX | Oil & Gas Property | Jun 2026 |
| 10526 | CULBERSON-PATTESON UNIT | Karnes County, TX | Oil & Gas Property | Jun 2026 |
| 10527 | CULBERT | Ventura County, CA | Oil & Gas Property | Jul 2026 |
| 10528 | CULBERTSON | Clarion County, PA | Oil & Gas Property | Dec 2025 |
| 10529 | CULBERTSON | Carson County, TX | Gas Property | Jun 2026 |
| 10530 | CULBERTSON | Hitchcock County, NE | Oil Property | Dec 2025 |
| 10531 | CULBERTSON | Terrell County, TX | Oil & Gas Property | Jun 2026 |
| 10532 | CULBERTSON | Bienville Parish, LA | Oil & Gas Property | Dec 2024 |
| 10533 | CULBERTSON | Muskingum County, OH | Oil & Gas Property | Dec 2025 |
| 10534 | CULBERTSON | Armstrong County, PA | Gas Property | Dec 2025 |
| 10535 | CULBERTSON | Jones County, TX | Oil & Gas Property | Sep 2023 |
| 10536 | CULBREATH | Weld County, CO | Oil & Gas Property | Mar 2017 |
| 10537 | CULBREATH, BOB | Warren County, KY | Oil & Gas Property | Dec 2023 |
| 10538 | CULEBRA BLV FEDERAL COM | Eddy County, NM | Oil & Gas Property | Jun 2026 |
| 10539 | CULLAR UNIT | Grayson County, TX | Oil & Gas Property | Jun 2026 |
| 10540 | CULLEN | Holmes County, OH | Oil & Gas Property | Dec 2025 |
| 10541 | CULLEN | Andrews County, TX | Oil & Gas Property | Jun 2026 |
| 10542 | CULLEN | Harrison County, TX | Oil & Gas Property | Jun 2026 |
| 10543 | CULLEN | Alfalfa County, OK | Oil & Gas Property | Jun 2026 |
| 10544 | CULLEN | Okmulgee County, OK | Gas Property | Nov 2014 |
| 10545 | CULLEN | Colorado County, TX | Oil & Gas Property | Jun 2026 |
| 10546 | CULLEN | Washington County, OH | Oil & Gas Property | Dec 2025 |
| 10547 | CULLEN L | Washington County, OH | Gas Property | Dec 2025 |
| 10548 | CULLEN UNIT A | Live Oak County, TX | Oil & Gas Property | Jun 2026 |
| 10549 | CULLEN-H | Colorado County, TX | Oil & Gas Property | Jun 2026 |
| 10550 | CULLER | Gray County, TX | Oil & Gas Property | Jun 2026 |
| 10551 | CULLER I | Ashland County, OH | Oil Property | Dec 2025 |
| 10552 | CULLERS | Young County, TX | Oil & Gas Property | Feb 2005 |
| 10553 | CULLERS J. EDGAR GAS UNIT | Rusk County, TX | Oil & Gas Property | Jun 2026 |
| 10554 | CULLEY | Seminole County, OK | Oil Property | Nov 2019 |
| 10555 | CULLEY | Graham County, KS | Oil Property | Mar 2026 |
| 10556 | CULLI | Bee County, TX | Oil & Gas Property | Mar 2019 |
| 10557 | CULLINAN FEE | Caddo Parish, LA | Oil & Gas Property | Jan 2025 |
| 10558 | CULLINS FEDERAL | Rio Arriba County, NM | Oil & Gas Property | Jun 2026 |
| 10559 | CULLISON | Johnson County, TX | Gas Property | Apr 2026 |
| 10560 | CULLISON | Stevens County, KS | Oil & Gas Property | Mar 2026 |
| 10561 | CULLISON | Licking County, OH | Oil & Gas Property | Dec 2025 |
| 10562 | CULLISON | Licking County, OH | Oil & Gas Property | Dec 2010 |
| 10563 | CULLISON | Coshocton County, OH | Oil & Gas Property | Dec 2025 |
| 10564 | CULLISON 2 | Stevens County, KS | Oil Property | Jul 2025 |
| 10565 | CULLUM | Wichita County, TX | Oil Property | May 2026 |
| 10566 | CULLUM | Gray County, TX | Oil & Gas Property | Jun 2026 |
| 10567 | CULLUM | Wheeler County, TX | Oil & Gas Property | Jun 2026 |
| 10568 | CULLUM | Freestone County, TX | Oil & Gas Property | Jun 2026 |
| 10569 | CULLY | Seminole County, OK | Oil & Gas Property | May 2026 |
| 10570 | CULLY | Ellis County, OK | Oil & Gas Property | May 2026 |
| 10571 | CULLY | Sumner County, KS | Oil Property | Apr 2026 |
| 10572 | CULP | Noble County, OK | Oil & Gas Property | Oct 2016 |
| 10573 | CULP | Caddo County, OK | Oil & Gas Property | May 2026 |
| 10574 | CULP | Chautauqua County, KS | Oil & Gas Property | Nov 2024 |
| 10575 | CULP DRAW | Johnson County, WY | Oil & Gas Property | Jan 2014 |
| 10576 | CULP DRAW | Johnson County, WY | Oil & Gas Property | Jul 2026 |
| 10577 | CULP WILLIAM E | Cooke County, TX | Oil & Gas Property | Jun 2026 |
| 10578 | CULPEPPER | Bienville Parish, LA | Gas Property | Dec 2024 |
| 10579 | CULPEPPER | Gregg County, TX | Oil & Gas Property | Jun 2026 |
| 10580 | CULPEPPER | Escambia County, AL | Oil & Gas Property | Apr 1992 |
| 10581 | CULPEPPER | Ouachita Parish, LA | Gas Property | Dec 2024 |
| 10582 | CULPEPPER | Webb County, TX | Oil & Gas Property | Jun 2026 |
| 10583 | CULPEPPER | Grady County, OK | Oil & Gas Property | May 2026 |
| 10584 | CULPEPPER | Dewitt County, TX | Oil & Gas Property | Jun 2026 |
| 10585 | CULPEPPER | Frio County, TX | Oil & Gas Property | Jun 2026 |
| 10586 | CULPEPPER | Milam County, TX | Oil & Gas Property | Jun 2026 |
| 10587 | CULPEPPER | Gonzales County, TX | Oil & Gas Property | Jun 2026 |
| 10588 | CULPEPPER MARTIN | San Juan County, NM | Oil & Gas Property | Jun 2026 |
| 10589 | CULPEPPER, RUSS & OLIVE | Kanawha County, WV | Oil & Gas Property | Dec 2021 |
| 10590 | CULTON ELVIS | Johnson County, TX | Gas Property | Jun 2026 |
| 10591 | CULTON, GOLDEN & ANDERSON | Clay County, KY | Oil & Gas Property | Dec 2024 |
| 10592 | CULVER | Gregg County, TX | Oil & Gas Property | May 2026 |
| 10593 | CULVER | Boulder County, CO | Oil & Gas Property | Jul 2025 |
| 10594 | CULVER | Union County, KY | Oil Property | Dec 2023 |
| 10595 | CULVER | Harper County, KS | Oil & Gas Property | Apr 2026 |
| 10596 | CULVER | Woodson County, KS | Oil Property | Mar 2026 |
| 10597 | CULVER D | Throckmorton County, TX | Oil & Gas Property | Nov 2022 |
| 10598 | CULVER OIL & MINERALS | Union County, KY | Oil Property | Dec 2022 |
| 10599 | CULVER, G.W | Gregg County, TX | Oil & Gas Property | Jun 2026 |
| 10600 | CULVERIN 1-32H | Richland County, MT | Oil & Gas Property | Jun 2026 |