| 27001 | CRAIGE | Susquehanna County, PA | Gas Property | Sep 2024 |
| 27002 | CRAIGEN LEO -A | Jefferson County, TX | Oil & Gas Property | Oct 2002 |
| 27003 | CRAIGHEAD | Carter County, OK | Oil & Gas Property | May 2024 |
| 27004 | CRAIGHEAD | Eastland County, TX | Oil & Gas Property | May 2024 |
| 27005 | CRAIL | Grant County, KS | Gas Property | Jul 2024 |
| 27006 | CRAIL | Beaver County, OK | Oil & Gas Property | Aug 2024 |
| 27007 | CRAIN | Cowley County, KS | Gas Property | Sep 1994 |
| 27008 | CRAIN | Bradford County, PA | Gas Property | Sep 2024 |
| 27009 | CRAIN | Union County, AR | Oil Property | Jul 2024 |
| 27010 | CRAIN | Erath County, TX | Gas Property | Aug 2024 |
| 27011 | CRAIN | Montgomery County, KS | Oil & Gas Property | Jul 2024 |
| 27012 | CRAIN 1 | De Soto Parish, LA | Gas Property | Jun 2024 |
| 27013 | CRAIN, J P | Lee County, KY | Oil Property | Dec 2019 |
| 27014 | CRAIN-GRIFFITH | Hidalgo County, TX | Oil & Gas Property | Aug 2024 |
| 27015 | CRAINE | Creek County, OK | Oil Property | Aug 2020 |
| 27016 | CRAINSHAW | Jack County, TX | Oil & Gas Property | Aug 2024 |
| 27017 | CRALL | Custer County, OK | Oil & Gas Property | Aug 2024 |
| 27018 | CRAM | Miami County, KS | Oil Property | Aug 2013 |
| 27019 | CRAMER | Kearny County, KS | Gas Property | Jul 2024 |
| 27020 | CRAMER | Lane County, KS | Oil Property | May 2024 |
| 27021 | CRAMER | Susquehanna County, PA | Gas Property | Sep 2024 |
| 27022 | CRAMER | Lane County, KS | Oil Property | Jul 2024 |
| 27023 | CRAMER | Furnas County, NE | Oil Property | Dec 2023 |
| 27024 | CRAMER | Bottineau County, ND | Oil Property | Aug 2019 |
| 27025 | CRAMER | Jack County, TX | Oil & Gas Property | Feb 2024 |
| 27026 | CRAMER-LOGAN WATERFLOOD UNIT | Jack County, TX | Oil & Gas Property | Jul 2024 |
| 27027 | CRAMM | Russell County, KS | Oil Property | May 2024 |
| 27028 | CRAMM | Rice County, KS | Oil Property | Jul 2024 |
| 27029 | CRANBERRY BSU STATE COM | Lea County, NM | Oil & Gas Property | Sep 2024 |
| 27030 | CRANBROOK STATE COM | Chaves County, NM | Oil & Gas Property | Sep 2024 |
| 27031 | CRANDALL | Shackelford County, TX | Oil & Gas Property | Aug 2024 |
| 27032 | CRANDALL | Cooke County, TX | Oil & Gas Property | Aug 2024 |
| 27033 | CRANDALL | Chautauqua County, NY | Oil & Gas Property | Dec 2023 |
| 27034 | CRANDALL | Arenac County, MI | Oil Property | May 2024 |
| 27035 | CRANDALL | Wise County, TX | Oil & Gas Property | Jul 2024 |
| 27036 | CRANDALL B | Morton County, KS | Oil & Gas Property | Jul 2024 |
| 27037 | CRANDALL RUB | Lavaca County, TX | Oil & Gas Property | Aug 2024 |
| 27038 | CRANDELL | Broomfield County, CO | Oil & Gas Property | Apr 2024 |
| 27039 | CRANDELL | San Juan County, NM | Oil & Gas Property | Sep 2024 |
| 27040 | CRANDELL | San Juan County, NM | Oil & Gas Property | Sep 2024 |
| 27041 | CRANDELL, MARY | Ritchie County, WV | Oil & Gas Property | Dec 2021 |
| 27042 | CRANE | Hemphill County, TX | Oil & Gas Property | Aug 2024 |
| 27043 | CRANE | Crane County, TX | Oil & Gas Property | Aug 2024 |
| 27044 | CRANE | Crane County, TX | Oil & Gas Property | Aug 2024 |
| 27045 | CRANE | Miller County, AR | Oil & Gas Property | Feb 1965 |
| 27046 | CRANE | McPherson County, KS | Oil Property | Jul 2024 |
| 27047 | CRANE | Bradford County, PA | Gas Property | Sep 2024 |
| 27048 | CRANE | Pawnee County, KS | Oil Property | Jun 2024 |
| 27049 | CRANE | Ventura County, CA | Oil & Gas Property | Sep 2024 |
| 27050 | CRANE | Ritchie County, WV | Oil & Gas Property | Dec 2021 |
| 27051 | CRANE | Tuscaloosa County, AL | Gas Property | Jun 2024 |
| 27052 | CRANE | Coal County, OK | Oil & Gas Property | Jul 2020 |
| 27053 | CRANE | Harper County, KS | Oil & Gas Property | Jul 2024 |
| 27054 | CRANE | Roger Mills County, OK | Oil & Gas Property | Aug 2024 |
| 27055 | CRANE | Portage County, OH | Oil & Gas Property | Dec 2023 |
| 27056 | CRANE 150-94-33C-28H | McKenzie County, ND | Oil & Gas Property | Sep 2024 |
| 27057 | CRANE CREEK | Mountrail County, ND | Oil & Gas Property | Sep 2024 |
| 27058 | CRANE DOROTHY | Hemphill County, TX | Oil & Gas Property | Aug 2024 |
| 27059 | CRANE ET AL | Nacogdoches County, TX | Gas Property | Aug 2024 |
| 27060 | CRANE FEDERAL | Rio Arriba County, NM | Gas Property | Sep 2024 |
| 27061 | CRANE FEDERAL 5300 | Williams County, ND | Oil & Gas Property | Sep 2024 |
| 27062 | CRANE J 0 | Susquehanna County, PA | Gas Property | Sep 2024 |
| 27063 | CRANE, WALTER | Ritchie County, WV | Oil & Gas Property | Dec 2021 |
| 27064 | CRANE-WAGNER | Wichita County, TX | Oil & Gas Property | Jan 2009 |
| 27065 | CRANFIELD | Adams County, MS | Oil Property | Sep 2024 |
| 27066 | CRANFIELD | Caddo Parish, LA | Gas Property | Jun 2024 |
| 27067 | CRANFIELD FIELD UNIT | Adams County, MS | Oil Property | Jul 2024 |
| 27068 | CRANFILL | Mitchell County, TX | Oil & Gas Property | Jan 2010 |
| 27069 | CRANFORD | Sabine Parish, LA | Oil Property | Jul 2024 |
| 27070 | CRANFORD | Nacogdoches County, TX | Oil & Gas Property | Aug 2024 |
| 27071 | CRANFORD | Jack County, TX | Oil & Gas Property | Aug 2024 |
| 27072 | CRANFORD 09-14 AUSTIN ROAD | Conway County, AR | Gas Property | Jul 2024 |
| 27073 | CRANK | Gray County, TX | Oil & Gas Property | Jul 2024 |
| 27074 | CRANK | Miller County, AR | Oil Property | Dec 1986 |
| 27075 | CRANK 03 067 | Bradford County, PA | Gas Property | Sep 2024 |
| 27076 | CRANMER | Yuma County, CO | Gas Property | Sep 2024 |
| 27077 | CRANOR | Washington County, OK | Oil & Gas Property | Dec 2007 |
| 27078 | CRANOR, RAYMOND E | Labette County, KS | Gas Property | Jul 2024 |
| 27079 | CRANRUN | Bradford County, PA | Gas Property | Sep 2024 |
| 27080 | CRANSTON | Cowley County, KS | Oil Property | Jul 2024 |
| 27081 | CRANZ | Colorado County, TX | Oil & Gas Property | Jul 2024 |
| 27082 | CRANZ | Tarrant County, TX | Oil & Gas Property | Aug 2024 |
| 27083 | CRAPSHOOT 13 FEDERAL | Eddy County, NM | Oil & Gas Property | Sep 2024 |
| 27084 | CRARY | Converse County, WY | Oil Property | Jan 1985 |
| 27085 | CRATER | Converse County, WY | Oil & Gas Property | Sep 2024 |
| 27086 | CRATER LAKE | McKenzie County, ND | Oil & Gas Property | Sep 2024 |
| 27087 | CRATERHAWK 8-14 UTFH-ULW | McKenzie County, ND | Oil & Gas Property | Sep 2024 |
| 27088 | CRATTY | Butler County, PA | Gas Property | Sep 2024 |
| 27089 | CRATTY B UNIT 1H | Butler County, PA | Gas Property | Sep 2024 |
| 27090 | CRAVAT COAL | Harrison County, OH | Gas Property | Jun 2024 |
| 27091 | CRAVAT COAL B UNIT | Washington County, PA | Gas Property | Sep 2024 |
| 27092 | CRAVAT N WHL BL | Belmont County, OH | Gas Property | Jun 2024 |
| 27093 | CRAVAT S WHL BL | Belmont County, OH | Gas Property | Jun 2024 |
| 27094 | CRAVEN | Weld County, CO | Oil & Gas Property | Jul 2024 |
| 27095 | CRAVEN CREEK UNIT | Lincoln County, WY | Oil & Gas Property | Sep 2024 |
| 27096 | CRAVEN P.L | Glasscock County, TX | Oil & Gas Property | Jul 2024 |
| 27097 | CRAVEN UNIT 3-8 | Reeves County, TX | Oil & Gas Property | Aug 2024 |
| 27098 | CRAVENS | Howard County, TX | Oil & Gas Property | Aug 2024 |
| 27099 | CRAVENS | Major County, OK | Oil & Gas Property | Sep 2024 |
| 27100 | CRAVENS | Seminole County, OK | Oil Property | Jul 2024 |