| 21001 | CENTURY-DULCICH 28 | Kern County, CA | Oil & Gas Property | Mar 2026 |
| 21002 | CEPO FEDERAL | Sweetwater County, WY | Oil & Gas Property | Feb 2026 |
| 21003 | CEPO LEWIS 2 | Sweetwater County, WY | Oil & Gas Property | Feb 2026 |
| 21004 | CEPRES | Jim Hogg County, TX | Oil & Gas Property | Feb 2026 |
| 21005 | CERBERUS | Martin County, TX | Oil & Gas Property | Feb 2026 |
| 21006 | CERBERUS 56-3-43 UNIT | Reeves County, TX | Oil & Gas Property | Feb 2026 |
| 21007 | CERBERUS A | Wilson County, TX | Oil & Gas Property | Feb 2026 |
| 21008 | CERCA | Bradford County, PA | Gas Property | Feb 2026 |
| 21009 | CERCION FEDERAL | Lea County, NM | Oil & Gas Property | Feb 2026 |
| 21010 | CERES | Gonzales County, TX | Oil & Gas Property | Feb 2026 |
| 21011 | CERES | Andrews County, TX | Oil & Gas Property | Feb 2026 |
| 21012 | CERF | Navarro County, TX | Oil & Gas Property | Feb 2026 |
| 21013 | CERF 10 | Eddy County, NM | Oil & Gas Property | Feb 2026 |
| 21014 | CERF 10 FEDERAL COM | Eddy County, NM | Oil & Gas Property | Feb 2026 |
| 21015 | CERF EUGENI | Navarro County, TX | Oil & Gas Property | Feb 2026 |
| 21016 | CERF FEDERAL COM | Eddy County, NM | Oil & Gas Property | Apr 2020 |
| 21017 | CERINI | Fresno County, CA | Oil & Gas Property | Jul 2004 |
| 21018 | CERKONEY | Billings County, ND | Oil & Gas Property | Feb 2026 |
| 21019 | CERMAK NE SMF JF | Jefferson County, OH | Gas Property | Dec 2025 |
| 21020 | CERNOCKY 1 | Lincoln County, OK | Oil & Gas Property | Jan 2026 |
| 21021 | CERNOSEK | Fayette County, TX | Oil & Gas Property | Feb 2026 |
| 21022 | CERNUSKA | Greene County, PA | Gas Property | Feb 2026 |
| 21023 | CERNY 1607 | Kingfisher County, OK | Oil & Gas Property | Jan 2026 |
| 21024 | CERRITO | Webb County, TX | Oil & Gas Property | Feb 2026 |
| 21025 | CERRITO LAND COMPANY | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 21026 | CERRITO-MATRIX | Webb County, TX | Oil & Gas Property | Feb 2026 |
| 21027 | CERRITO-SANCHEZ | Webb County, TX | Oil & Gas Property | Feb 2026 |
| 21028 | CERROS AQF FEDERAL COM | Eddy County, NM | Oil & Gas Property | Feb 2026 |
| 21029 | CERROW | Rooks County, KS | Oil Property | Dec 2025 |
| 21030 | CERTAIN | Caddo County, OK | Oil Property | May 2025 |
| 21031 | CERTAIN TEED | Caddo County, OK | Oil Property | Oct 2025 |
| 21032 | CERULLO | Fayette County, PA | Gas Property | Dec 2025 |
| 21033 | CERVI | Weld County, CO | Oil & Gas Property | Oct 2017 |
| 21034 | CERVI | Weld County, CO | Oil & Gas Property | Jan 2022 |
| 21035 | CESAK JOSEPH B | Milam County, TX | Oil & Gas Property | Feb 2026 |
| 21036 | CESARIO N | Jefferson County, OH | Gas Property | Dec 2025 |
| 21037 | CESSNA | Liberty County, TX | Oil & Gas Property | Feb 2026 |
| 21038 | CESSNA | Kingman County, KS | Oil & Gas Property | Dec 2025 |
| 21039 | CETERA | Dewitt County, TX | Oil & Gas Property | Feb 2026 |
| 21040 | CETO | Andrews County, TX | Oil & Gas Property | Feb 2026 |
| 21041 | CETUS | Uintah County, UT | Oil & Gas Property | Feb 2026 |
| 21042 | CETUS 3 | Converse County, WY | Oil & Gas Property | Feb 2026 |
| 21043 | CEYNAR | McKenzie County, ND | Oil & Gas Property | Feb 2026 |
| 21044 | CEYNAR 2 | McKenzie County, ND | Oil & Gas Property | Feb 2026 |
| 21045 | CEYNAR 4 | McKenzie County, ND | Oil & Gas Property | Feb 2026 |
| 21046 | CEYNAR 5 | McKenzie County, ND | Oil & Gas Property | Feb 2026 |
| 21047 | CFC UNIT | Stephens County, TX | Oil & Gas Property | Jan 2026 |
| 21048 | CFI TURNER CORP. 30-5 | Hendry County, FL | Oil & Gas Property | Dec 2024 |
| 21049 | CFR/USX | Fayette County, PA | Oil & Gas Property | Dec 2025 |
| 21050 | CFU 29F-1 #1 (FRMLY HOMOCHITTO LBR 3-2) | Franklin County, MS | Oil Property | Jan 2026 |
| 21051 | CFU 3 | Franklin County, MS | Oil Property | Jan 2026 |
| 21052 | CFU 4 | Franklin County, MS | Oil Property | Jul 2024 |
| 21053 | CFU 5 | Adams County, MS | Oil Property | Jan 2026 |
| 21054 | CFU 66-5 (FRMLY L G RATCLIFFE ETAL 3) | Adams County, MS | Oil Property | Jan 2026 |
| 21055 | CFU 66-6 (FRMLY NATIONL GASOLINE LA #9) | Adams County, MS | Oil Property | Jan 2026 |
| 21056 | CFU 67-1 (FRMLY L G RATCLIFFE ETAL 4) | Adams County, MS | Oil Property | Jan 2026 |
| 21057 | CFU 68 - 5 (FRMLY RATCLIFFE 1) | Adams County, MS | Oil Property | Jan 2026 |
| 21058 | CFU 68-4 (FRMLY A M RATCLIFFE 2-1) | Adams County, MS | Oil Property | Jan 2026 |
| 21059 | CFU 68-6 (FRMLY A M RATCLIFFE 2) | Adams County, MS | Oil Property | Jan 2026 |
| 21060 | CFU 7 | Adams County, MS | Oil Property | Jan 2026 |
| 21061 | CG ROAD | Sweetwater County, WY | Oil & Gas Property | Feb 2026 |
| 21062 | CG ROAD UNIT | Sweetwater County, WY | Oil & Gas Property | Feb 2026 |
| 21063 | CG WELL | Campbell County, WY | Gas Property | Jan 2008 |
| 21064 | CGU 0 | Panola County, TX | Gas Property | Feb 2026 |
| 21065 | CGU 1 | Johnson County, WY | Gas Property | Feb 2026 |
| 21066 | CGU 1 | Panola County, TX | Oil & Gas Property | Feb 2026 |
| 21067 | CGU 1 | Panola County, TX | Gas Property | Feb 2026 |
| 21068 | CGU 10 | Panola County, TX | Gas Property | Feb 2026 |
| 21069 | CGU 2 | Panola County, TX | Oil & Gas Property | Feb 2026 |
| 21070 | CGU 20 | Panola County, TX | Gas Property | Feb 2026 |
| 21071 | CGU 3 | Johnson County, WY | Gas Property | Feb 2026 |
| 21072 | CGU 3 | Panola County, TX | Oil & Gas Property | Feb 2026 |
| 21073 | CGU 3 | Panola County, TX | Oil & Gas Property | Feb 2026 |
| 21074 | CGU 4 | Johnson County, WY | Gas Property | Feb 2026 |
| 21075 | CGU 4 | Panola County, TX | Gas Property | Feb 2026 |
| 21076 | CGU 5 | Panola County, TX | Gas Property | Feb 2026 |
| 21077 | CGU 6 | Panola County, TX | Oil & Gas Property | Feb 2026 |
| 21078 | CGU 7 | Panola County, TX | Oil & Gas Property | Feb 2026 |
| 21079 | CGU 8 | Panola County, TX | Oil & Gas Property | Feb 2026 |
| 21080 | CGU 9 | Panola County, TX | Oil & Gas Property | Feb 2026 |
| 21081 | CGU FED | Johnson County, WY | Gas Property | Feb 2026 |
| 21082 | CGU FED | Johnson County, WY | Gas Property | Feb 2026 |
| 21083 | CGU STATE | Johnson County, WY | Gas Property | Feb 2026 |
| 21084 | CH ENTERPRISE | Tarrant County, TX | Gas Property | Feb 2026 |
| 21085 | CH RANCH | Glasscock County, TX | Oil & Gas Property | Jan 2026 |
| 21086 | CHAAPEL HOLLOW UNIT | Lycoming County, PA | Gas Property | Feb 2026 |
| 21087 | CHABLIS | Blaine County, OK | Oil & Gas Property | Jan 2026 |
| 21088 | CHABLIS | Martin County, TX | Oil & Gas Property | Feb 2026 |
| 21089 | CHACE APACHE 15 | Sandoval County, NM | Oil & Gas Property | Mar 2026 |
| 21090 | CHACE APACHE 54 | Sandoval County, NM | Oil & Gas Property | Mar 2026 |
| 21091 | CHACHALACA UNIT | Atascosa County, TX | Oil & Gas Property | Jan 2026 |
| 21092 | CHACHERE HAZEL J | Burleson County, TX | Oil & Gas Property | Jan 2026 |
| 21093 | CHACO | San Juan County, NM | Oil & Gas Property | Feb 2026 |
| 21094 | CHACO | San Juan County, NM | Gas Property | Nov 2021 |
| 21095 | CHACO LIMITED | San Juan County, NM | Gas Property | Jan 2026 |
| 21096 | CHACO PLANT | San Juan County, NM | Gas Property | Dec 2011 |
| 21097 | CHACON AMIGOS | Sandoval County, NM | Oil & Gas Property | Feb 2026 |
| 21098 | CHACON FEDERAL | Rio Arriba County, NM | Oil & Gas Property | Feb 2026 |
| 21099 | CHACON JICARILLA | Sandoval County, NM | Oil & Gas Property | Feb 2026 |
| 21100 | CHAD | Eddy County, NM | Oil & Gas Property | Mar 2026 |