| 27901 | CROISSANT | Weld County, CO | Oil & Gas Property | Feb 2014 |
| 27902 | CROISSANT | Weld County, CO | Oil & Gas Property | Oct 2018 |
| 27903 | CROKA | Kingfisher County, OK | Oil & Gas Property | Jun 2026 |
| 27904 | CROLEY | Whitley County, KY | Gas Property | Mar 2024 |
| 27905 | CROLEY | Crane County, TX | Oil & Gas Property | Jun 2026 |
| 27906 | CROLEY, T F | Whitley County, KY | Oil & Gas Property | Dec 2024 |
| 27907 | CROMB | Trego County, KS | Oil Property | Apr 2025 |
| 27908 | CROMER | Marion County, TX | Oil & Gas Property | Jun 2026 |
| 27909 | CROMER | Bourbon County, KS | Oil & Gas Property | Jul 2009 |
| 27910 | CROMER | Pratt County, KS | Oil & Gas Property | Mar 2026 |
| 27911 | CROMER | Grant County, KS | Gas Property | May 2026 |
| 27912 | CROMIKA 34-10-5 | Harrison County, OH | Oil & Gas Property | Jun 2026 |
| 27913 | CROMWELL | Major County, OK | Oil & Gas Property | Sep 2023 |
| 27914 | CROMWELL | Garfield County, OK | Oil & Gas Property | Jun 2026 |
| 27915 | CROMWELL | Alfalfa County, OK | Oil & Gas Property | May 2021 |
| 27916 | CROMWELL | La Salle County, TX | Oil & Gas Property | Jun 2026 |
| 27917 | CRONE | Columbia County, AR | Oil & Gas Property | Feb 2026 |
| 27918 | CRONE | Morgan County, CO | Oil & Gas Property | May 2021 |
| 27919 | CRONIN | Gonzales County, TX | Oil & Gas Property | Jun 2026 |
| 27920 | CRONIN | Monroe County, OH | Oil & Gas Property | Dec 2024 |
| 27921 | CRONIN 1 | Noble County, OK | Oil & Gas Property | Jun 2026 |
| 27922 | CRONIN UNIT 524 | Wood County, TX | Oil & Gas Property | Jun 2026 |
| 27923 | CRONIN, RICHARD | Lewis County, WV | Oil & Gas Property | Dec 2021 |
| 27924 | CRONK 1 | Washington County, CO | Oil Property | Mar 2026 |
| 27925 | CRONKITE | Kingfisher County, OK | Oil & Gas Property | Jun 2026 |
| 27926 | CRONN 18 | Graham County, KS | Oil Property | May 2026 |
| 27927 | CROOCH | Okmulgee County, OK | Oil Property | Sep 2014 |
| 27928 | CROOCH | Muskogee County, OK | Oil & Gas Property | Dec 2018 |
| 27929 | CROOCH | Grant County, OK | Oil & Gas Property | Jun 2026 |
| 27930 | CROOK | Kingfisher County, OK | Oil & Gas Property | Apr 2024 |
| 27931 | CROOK | Okmulgee County, OK | Oil Property | Mar 2001 |
| 27932 | CROOK | Burleson County, TX | Oil & Gas Property | May 2026 |
| 27933 | CROOK | Leavenworth County, KS | Oil Property | Sep 2021 |
| 27934 | CROOKED CREEK | Haskell County, OK | Gas Property | Jun 2026 |
| 27935 | CROOKED CREEK | Meade County, KS | Oil & Gas Property | May 2026 |
| 27936 | CROOKED CREEK | Eddy County, NM | Gas Property | Jun 2026 |
| 27937 | CROOKED CREEK CLEVELAND UNIT | Kingfisher County, OK | Oil & Gas Property | Jun 2026 |
| 27938 | CROOKED L | Meade County, KS | Oil & Gas Property | May 2026 |
| 27939 | CROOKED NOSE 15-12N-8W | Canadian County, OK | Oil & Gas Property | Jun 2026 |
| 27940 | CROOKED PINE 22 15-12N-8W | Canadian County, OK | Oil & Gas Property | Jun 2026 |
| 27941 | CROOKED POLE | Blaine County, OK | Oil & Gas Property | Oct 2018 |
| 27942 | CROOKED STICK | Garza County, TX | Oil & Gas Property | Jun 2026 |
| 27943 | CROOKED STICK | Lincoln County, OK | Oil & Gas Property | Jul 2026 |
| 27944 | CROOKER | Matagorda County, TX | Oil & Gas Property | Nov 2021 |
| 27945 | CROOKS | Harper County, OK | Oil & Gas Property | Aug 2018 |
| 27946 | CROOKS | Hansford County, TX | Oil & Gas Property | Jun 2026 |
| 27947 | CROOKS | Renville County, ND | Oil & Gas Property | Aug 2020 |
| 27948 | CROOKS | Ellis County, OK | Oil & Gas Property | Jun 2026 |
| 27949 | CROOKS | Henderson County, KY | Oil Property | Dec 2023 |
| 27950 | CROOKS 44-23H | Dunn County, ND | Oil & Gas Property | Jun 2026 |
| 27951 | CROOKS GAP | Fremont County, WY | Oil & Gas Property | Jun 2026 |
| 27952 | CROOKS, MALCO | Ritchie County, WV | Oil & Gas Property | Dec 2021 |
| 27953 | CROOM 1-33H | Grady County, OK | Oil & Gas Property | Jun 2026 |
| 27954 | CROPP | Barton County, KS | Oil Property | May 2026 |
| 27955 | CROPP | Woods County, OK | Oil & Gas Property | Jun 2026 |
| 27956 | CROPPER | Wichita County, TX | Oil & Gas Property | Jun 2026 |
| 27957 | CROQUET FED | Uintah County, UT | Oil & Gas Property | Jun 2026 |
| 27958 | CROSBIE | Stephens County, OK | Oil & Gas Property | Jul 2026 |
| 27959 | CROSBIE, T.S | Liberty County, TX | Oil & Gas Property | May 2026 |
| 27960 | CROSBY | Vernon Parish, LA | Oil & Gas Property | Dec 2016 |
| 27961 | CROSBY | Stephens County, OK | Oil Property | Jul 2026 |
| 27962 | CROSBY | Beauregard Parish, LA | Oil & Gas Property | Nov 2024 |
| 27963 | CROSBY | Jefferson County, PA | Oil & Gas Property | Dec 2025 |
| 27964 | CROSBY | Lea County, NM | Oil & Gas Property | Sep 2009 |
| 27965 | CROSBY | Ashtabula County, OH | Oil & Gas Property | Dec 2023 |
| 27966 | CROSBY | Hancock County, MS | Oil & Gas Property | Aug 2014 |
| 27967 | CROSBY | Amite County, MS | Oil & Gas Property | Nov 2013 |
| 27968 | CROSBY | Pearl River County, MS | Oil & Gas Property | Jan 2021 |
| 27969 | CROSBY | Cheyenne County, CO | Oil Property | May 2026 |
| 27970 | CROSBY | Roberts County, TX | Oil & Gas Property | Jun 2026 |
| 27971 | CROSBY 00 | Westmoreland County, PA | Gas Property | Dec 2025 |
| 27972 | CROSBY 25 | Park County, WY | Oil & Gas Property | Jun 2018 |
| 27973 | CROSBY 33 | Rapides Parish, LA | Oil & Gas Property | Dec 2024 |
| 27974 | CROSBY CHASE 2-1H | McKenzie County, ND | Oil & Gas Property | Jun 2026 |
| 27975 | CROSBY CREEK | Dunn County, ND | Oil & Gas Property | Jun 2026 |
| 27976 | CROSBY LAND | Allen Parish, LA | Oil & Gas Property | Aug 2013 |
| 27977 | CROSBY STATE | Andrews County, TX | Oil & Gas Property | Jul 2025 |
| 27978 | CROSBY UNIT | Gonzales County, TX | Oil & Gas Property | Jun 2026 |
| 27979 | CROSBY USA 41-6H | Dunn County, ND | Oil & Gas Property | Jun 2026 |
| 27980 | CROSBY-HATCHER | Hutchinson County, TX | Oil & Gas Property | Jun 2026 |
| 27981 | CROSKEY | Holmes County, OH | Oil & Gas Property | Dec 2022 |
| 27982 | CROSLAND B. M | Palo Pinto County, TX | Oil & Gas Property | Jun 2026 |
| 27983 | CROSLEY | Clarion County, PA | Oil & Gas Property | Dec 2025 |
| 27984 | CROSLIN | Lubbock County, TX | Oil & Gas Property | Jun 2026 |
| 27985 | CROSS | Lipscomb County, TX | Oil & Gas Property | Jun 2026 |
| 27986 | CROSS | Allen County, KS | Oil Property | May 2026 |
| 27987 | CROSS | Muskingum County, OH | Oil & Gas Property | Dec 2025 |
| 27988 | CROSS | Taylor County, TX | Oil & Gas Property | May 2026 |
| 27989 | CROSS | Banner County, NE | Oil Property | Dec 2025 |
| 27990 | CROSS | Stanton County, KS | Gas Property | May 2026 |
| 27991 | CROSS | Ellis County, OK | Oil & Gas Property | Jun 2026 |
| 27992 | CROSS | Garza County, TX | Oil & Gas Property | Jun 2026 |
| 27993 | CROSS | Kingman County, KS | Oil & Gas Property | May 2026 |
| 27994 | CROSS | Barber County, KS | Oil & Gas Property | Sep 2011 |
| 27995 | CROSS | Wayne County, OH | Oil & Gas Property | Dec 2025 |
| 27996 | CROSS | Martin County, TX | Oil & Gas Property | Jun 2026 |
| 27997 | CROSS | Chautauqua County, NY | Gas Property | Dec 2025 |
| 27998 | CROSS | Crane County, TX | Oil & Gas Property | Jun 2026 |
| 27999 | CROSS | Greenwood County, KS | Oil Property | Jan 2018 |
| 28000 | CROSS | Chautauqua County, NY | Gas Property | Dec 2025 |