| 27701 | CROMER | Bourbon County, KS | Oil & Gas Property | Jul 2009 |
| 27702 | CROMER | Pratt County, KS | Oil & Gas Property | May 2025 |
| 27703 | CROMER | Grant County, KS | Gas Property | Jan 2026 |
| 27704 | CROMIKA 34-10-5 | Harrison County, OH | Oil & Gas Property | Dec 2025 |
| 27705 | CROMWELL | Major County, OK | Oil & Gas Property | Sep 2023 |
| 27706 | CROMWELL | Garfield County, OK | Oil & Gas Property | Feb 2026 |
| 27707 | CROMWELL | Alfalfa County, OK | Oil & Gas Property | May 2021 |
| 27708 | CROMWELL | La Salle County, TX | Oil & Gas Property | Feb 2026 |
| 27709 | CRONE | Columbia County, AR | Oil & Gas Property | May 2025 |
| 27710 | CRONE | Morgan County, CO | Oil & Gas Property | May 2021 |
| 27711 | CRONIN | Gonzales County, TX | Oil & Gas Property | Feb 2026 |
| 27712 | CRONIN | Monroe County, OH | Oil & Gas Property | Dec 2023 |
| 27713 | CRONIN 1 | Noble County, OK | Oil & Gas Property | Feb 2026 |
| 27714 | CRONIN, RICHARD | Lewis County, WV | Oil & Gas Property | Dec 2021 |
| 27715 | CRONK 1 | Washington County, CO | Oil Property | Dec 2025 |
| 27716 | CRONKITE | Kingfisher County, OK | Oil & Gas Property | Jul 2025 |
| 27717 | CRONN 18 | Graham County, KS | Oil Property | Jan 2026 |
| 27718 | CROOCH | Okmulgee County, OK | Oil Property | Sep 2014 |
| 27719 | CROOCH | Muskogee County, OK | Oil & Gas Property | Dec 2018 |
| 27720 | CROOCH | Grant County, OK | Oil & Gas Property | Apr 2025 |
| 27721 | CROOK | Kingfisher County, OK | Oil & Gas Property | Apr 2024 |
| 27722 | CROOK | Okmulgee County, OK | Oil Property | Mar 2001 |
| 27723 | CROOK | Burleson County, TX | Oil & Gas Property | Jan 2026 |
| 27724 | CROOK | Leavenworth County, KS | Oil Property | Sep 2021 |
| 27725 | CROOK 1-6B4 | Duchesne County, UT | Oil & Gas Property | Feb 2026 |
| 27726 | CROOKED CREEK | Haskell County, OK | Gas Property | Jan 2026 |
| 27727 | CROOKED CREEK | Meade County, KS | Oil & Gas Property | Jan 2026 |
| 27728 | CROOKED CREEK | Eddy County, NM | Gas Property | Feb 2026 |
| 27729 | CROOKED CREEK CLEVELAND UNIT | Kingfisher County, OK | Oil & Gas Property | Feb 2026 |
| 27730 | CROOKED L | Meade County, KS | Oil & Gas Property | Jan 2026 |
| 27731 | CROOKED NOSE 15-12N-8W | Canadian County, OK | Oil & Gas Property | Jan 2026 |
| 27732 | CROOKED PINE 22 15-12N-8W | Canadian County, OK | Oil & Gas Property | Jan 2026 |
| 27733 | CROOKED POLE | Blaine County, OK | Oil & Gas Property | Oct 2018 |
| 27734 | CROOKED STICK | Garza County, TX | Oil & Gas Property | Feb 2026 |
| 27735 | CROOKED STICK | Lincoln County, OK | Oil & Gas Property | Jan 2026 |
| 27736 | CROOKER | Matagorda County, TX | Oil & Gas Property | Nov 2021 |
| 27737 | CROOKS | Harper County, OK | Oil & Gas Property | Aug 2018 |
| 27738 | CROOKS | Hansford County, TX | Oil & Gas Property | Feb 2026 |
| 27739 | CROOKS | Renville County, ND | Oil & Gas Property | Aug 2020 |
| 27740 | CROOKS | Ellis County, OK | Oil & Gas Property | Jan 2026 |
| 27741 | CROOKS | Henderson County, KY | Oil Property | Dec 2023 |
| 27742 | CROOKS 44-23H | Dunn County, ND | Oil & Gas Property | Mar 2026 |
| 27743 | CROOKS GAP | Fremont County, WY | Oil & Gas Property | Feb 2026 |
| 27744 | CROOKS, MALCO | Ritchie County, WV | Oil & Gas Property | Dec 2021 |
| 27745 | CROOM 1-33H | Grady County, OK | Oil & Gas Property | Jan 2026 |
| 27746 | CROPP | Barton County, KS | Oil Property | Jan 2026 |
| 27747 | CROPP | Woods County, OK | Oil & Gas Property | Jan 2026 |
| 27748 | CROPPER | Wichita County, TX | Oil & Gas Property | Feb 2026 |
| 27749 | CROQUET FED | Uintah County, UT | Oil & Gas Property | Feb 2026 |
| 27750 | CROSBIE | Stephens County, OK | Oil & Gas Property | Jan 2026 |
| 27751 | CROSBIE T. S | Liberty County, TX | Oil & Gas Property | Jan 2026 |
| 27752 | CROSBY | Vernon Parish, LA | Oil & Gas Property | Dec 2016 |
| 27753 | CROSBY | Stephens County, OK | Oil Property | Dec 2025 |
| 27754 | CROSBY | Beauregard Parish, LA | Oil & Gas Property | Nov 2024 |
| 27755 | CROSBY | Jefferson County, PA | Oil & Gas Property | Dec 2025 |
| 27756 | CROSBY | Lea County, NM | Oil & Gas Property | Sep 2009 |
| 27757 | CROSBY | Ashtabula County, OH | Oil & Gas Property | Dec 2023 |
| 27758 | CROSBY | Hancock County, MS | Oil & Gas Property | Aug 2014 |
| 27759 | CROSBY | Amite County, MS | Oil & Gas Property | Nov 2013 |
| 27760 | CROSBY | Pearl River County, MS | Oil & Gas Property | Jan 2021 |
| 27761 | CROSBY | Cheyenne County, CO | Oil Property | Feb 2026 |
| 27762 | CROSBY | Roberts County, TX | Oil & Gas Property | Feb 2026 |
| 27763 | CROSBY 00 | Westmoreland County, PA | Gas Property | Dec 2025 |
| 27764 | CROSBY 25 | Park County, WY | Oil & Gas Property | Jun 2018 |
| 27765 | CROSBY 33 | Rapides Parish, LA | Oil & Gas Property | Dec 2024 |
| 27766 | CROSBY CHASE 2-1H | McKenzie County, ND | Oil & Gas Property | Mar 2026 |
| 27767 | CROSBY CREEK | Dunn County, ND | Oil & Gas Property | Mar 2026 |
| 27768 | CROSBY LAND | Allen Parish, LA | Oil & Gas Property | Aug 2013 |
| 27769 | CROSBY STATE | Andrews County, TX | Oil & Gas Property | Jul 2025 |
| 27770 | CROSBY UNIT | Gonzales County, TX | Oil & Gas Property | Feb 2026 |
| 27771 | CROSBY USA 41-6H | Dunn County, ND | Oil & Gas Property | Mar 2026 |
| 27772 | CROSBY-HATCHER | Hutchinson County, TX | Oil & Gas Property | Feb 2026 |
| 27773 | CROSKEY | Holmes County, OH | Oil & Gas Property | Dec 2022 |
| 27774 | CROSLAND B. M | Palo Pinto County, TX | Oil & Gas Property | Sep 2025 |
| 27775 | CROSLEY | Clarion County, PA | Oil & Gas Property | Dec 2025 |
| 27776 | CROSLIN | Lubbock County, TX | Oil & Gas Property | Feb 2026 |
| 27777 | CROSS | Lipscomb County, TX | Oil & Gas Property | Feb 2026 |
| 27778 | CROSS | Allen County, KS | Oil Property | Jan 2026 |
| 27779 | CROSS | Muskingum County, OH | Oil & Gas Property | Dec 2024 |
| 27780 | CROSS | Taylor County, TX | Oil & Gas Property | Jan 2026 |
| 27781 | CROSS | Banner County, NE | Oil Property | Dec 2024 |
| 27782 | CROSS | Stanton County, KS | Gas Property | Jan 2026 |
| 27783 | CROSS | Ellis County, OK | Oil & Gas Property | Jan 2026 |
| 27784 | CROSS | Garza County, TX | Oil & Gas Property | Feb 2026 |
| 27785 | CROSS | Kingman County, KS | Oil & Gas Property | Jan 2026 |
| 27786 | CROSS | Barber County, KS | Oil & Gas Property | Sep 2011 |
| 27787 | CROSS | Wayne County, OH | Oil & Gas Property | Dec 2025 |
| 27788 | CROSS | Martin County, TX | Oil & Gas Property | Feb 2026 |
| 27789 | CROSS | Chautauqua County, NY | Gas Property | Dec 2024 |
| 27790 | CROSS | Crane County, TX | Oil & Gas Property | Feb 2026 |
| 27791 | CROSS | Greenwood County, KS | Oil Property | Jan 2018 |
| 27792 | CROSS | Chautauqua County, NY | Gas Property | Dec 2024 |
| 27793 | CROSS | Carroll County, OH | Oil & Gas Property | Dec 2024 |
| 27794 | CROSS | Edwards County, KS | Oil & Gas Property | Jan 2026 |
| 27795 | CROSS | Chautauqua County, NY | Gas Property | Dec 2024 |
| 27796 | CROSS | Chautauqua County, NY | Gas Property | Dec 2024 |
| 27797 | CROSS | Glacier County, MT | Oil Property | Feb 2026 |
| 27798 | CROSS | Ector County, TX | Oil & Gas Property | Feb 2026 |
| 27799 | CROSS | Ellis County, KS | Oil Property | Jan 2026 |
| 27800 | CROSS 1 | Lincoln County, OK | Oil & Gas Property | Dec 2021 |