| 21001 | CENTER CITY 1-3 | Caddo County, OK | Oil & Gas Property | Jan 2025 |
| 21002 | CENTER COAL | Tuscaloosa County, AL | Gas Property | Dec 2024 |
| 21003 | CENTER COAL 22 | Tuscaloosa County, AL | Gas Property | Dec 2024 |
| 21004 | CENTER HUFFSTUTTER | Phillips County, KS | Oil Property | Dec 2024 |
| 21005 | CENTER TOWNSHIP | Indiana County, PA | Gas Property | Dec 2024 |
| 21006 | CENTER XI FEDERAL | Chaves County, NM | Oil & Gas Property | Sep 2021 |
| 21007 | CENTEX | Weld County, CO | Oil & Gas Property | Sep 2024 |
| 21008 | CENTRAHOMA | Coal County, OK | Oil & Gas Property | Dec 2024 |
| 21009 | CENTRAL | Ventura County, CA | Oil Property | Jan 2023 |
| 21010 | CENTRAL | Smith County, MS | Oil & Gas Property | Oct 2024 |
| 21011 | CENTRAL | Morton County, KS | Oil & Gas Property | Dec 2024 |
| 21012 | CENTRAL | Los Angeles County, CA | Oil & Gas Property | Sep 1991 |
| 21013 | CENTRAL | Allegany County, NY | Oil Property | Dec 2023 |
| 21014 | CENTRAL APPALACHIAN COAL | Kanawha County, WV | Gas Property | Dec 2021 |
| 21015 | CENTRAL BISTI | San Juan County, NM | Oil & Gas Property | Apr 2024 |
| 21016 | CENTRAL BROADVIEW UNIT | Lubbock County, TX | Oil & Gas Property | Jan 2025 |
| 21017 | CENTRAL CHA CHA UNIT | San Juan County, NM | Oil & Gas Property | Mar 1999 |
| 21018 | CENTRAL CO | San Jacinto County, TX | Oil & Gas Property | Jan 2025 |
| 21019 | CENTRAL COMMERCIAL | McClain County, OK | Oil & Gas Property | Jan 2025 |
| 21020 | CENTRAL CORBIN QUEEN UNIT | Lea County, NM | Oil & Gas Property | Mar 2012 |
| 21021 | CENTRAL CORWITH | Otsego County, MI | Gas Property | Feb 2025 |
| 21022 | CENTRAL DRINKARD UNIT | Lea County, NM | Oil & Gas Property | Feb 2025 |
| 21023 | CENTRAL DUNE/SAN ANDRES/UNIT | Crane County, TX | Oil & Gas Property | Jan 2025 |
| 21024 | CENTRAL EK QUEEN UNIT | Lea County, NM | Oil & Gas Property | Feb 2025 |
| 21025 | CENTRAL GLORIETA UNIT | Yoakum County, TX | Oil & Gas Property | Jan 2025 |
| 21026 | CENTRAL HILIGHT UNIT | Campbell County, WY | Oil & Gas Property | Nov 1996 |
| 21027 | CENTRAL IMMI | Ouachita Parish, LA | Gas Property | Nov 2024 |
| 21028 | CENTRAL KITTY | Campbell County, WY | Gas Property | Dec 2010 |
| 21029 | CENTRAL L | Seward County, KS | Gas Property | Dec 2024 |
| 21030 | CENTRAL LAND | Kent County, MI | Oil Property | Feb 2025 |
| 21031 | CENTRAL LEVELL | Hockley County, TX | Oil & Gas Property | Jan 2025 |
| 21032 | CENTRAL LIFE | Morton County, KS | Gas Property | Dec 2024 |
| 21033 | CENTRAL LUMBER CO | Franklin County, MS | Oil Property | Dec 2024 |
| 21034 | CENTRAL MALLET | Hockley County, TX | Oil & Gas Property | Jan 2025 |
| 21035 | CENTRAL NATIONAL BANK | Coke County, TX | Oil & Gas Property | Jan 2025 |
| 21036 | CENTRAL OHIO COAL | Noble County, OH | Oil & Gas Property | Dec 2023 |
| 21037 | CENTRAL OIL | Jones County, MS | Oil & Gas Property | Apr 1986 |
| 21038 | CENTRAL OWNBY UNIT | Yoakum County, TX | Oil & Gas Property | Jan 2025 |
| 21039 | CENTRAL PA LUMBER CO | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 21040 | CENTRAL PETROLEUM CO. NO. 1 | Navarro County, TX | Oil & Gas Property | Jan 2025 |
| 21041 | CENTRAL PLAINS | Yuma County, CO | Gas Property | Feb 2025 |
| 21042 | CENTRAL PLAINS 27 | Stevens County, KS | Oil & Gas Property | Dec 2024 |
| 21043 | CENTRAL POINT | Kern County, CA | Oil & Gas Property | Dec 2024 |
| 21044 | CENTRAL ROBERTSON CLEARFORK | Gaines County, TX | Oil & Gas Property | Jan 2025 |
| 21045 | CENTRAL STATE BANK | Winkler County, TX | Oil & Gas Property | Dec 2024 |
| 21046 | CENTRAL STATE BANK | Winkler County, TX | Oil & Gas Property | Dec 2024 |
| 21047 | CENTRAL TRUST | Mingo County, WV | Oil & Gas Property | Dec 2021 |
| 21048 | CENTRAL TRUST | Mingo County, WV | Oil & Gas Property | Dec 2021 |
| 21049 | CENTRAL VACUUM UNIT | Lea County, NM | Oil & Gas Property | Feb 2025 |
| 21050 | CENTRAL VAN WOODBINE UNIT | Van Zandt County, TX | Oil & Gas Property | Jan 2025 |
| 21051 | CENTRAL WASTE | Mahoning County, OH | Oil & Gas Property | Dec 2024 |
| 21052 | CENTRAL WV ENERGY | McDowell County, WV | Gas Property | Dec 2021 |
| 21053 | CENTREPORT | Tarrant County, TX | Gas Property | Jan 2025 |
| 21054 | CENTURY FEE 20 | Crook County, WY | Oil Property | Feb 2025 |
| 21055 | CENTURY-DULCICH 28 | Kern County, CA | Oil & Gas Property | Dec 2024 |
| 21056 | CEPO FEDERAL | Sweetwater County, WY | Oil & Gas Property | Feb 2025 |
| 21057 | CEPO LEWIS 2 | Sweetwater County, WY | Oil & Gas Property | Feb 2025 |
| 21058 | CERBERUS | Martin County, TX | Oil & Gas Property | Jan 2025 |
| 21059 | CERBERUS 56-3-43 UNIT 1H | Reeves County, TX | Oil & Gas Property | Jan 2025 |
| 21060 | CERCA | Bradford County, PA | Gas Property | Feb 2025 |
| 21061 | CERCION FEDERAL | Lea County, NM | Oil & Gas Property | Feb 2025 |
| 21062 | CERES | Gonzales County, TX | Oil & Gas Property | Jan 2025 |
| 21063 | CERES | Andrews County, TX | Oil & Gas Property | Jan 2025 |
| 21064 | CEREZA | Martin County, TX | Oil & Gas Property | Jan 2025 |
| 21065 | CERF | Navarro County, TX | Oil & Gas Property | Jan 2025 |
| 21066 | CERF 10 | Eddy County, NM | Oil & Gas Property | Feb 2025 |
| 21067 | CERF 10 FEDERAL COM | Eddy County, NM | Oil & Gas Property | Feb 2025 |
| 21068 | CERF EUGENI | Navarro County, TX | Oil & Gas Property | Jan 2025 |
| 21069 | CERF FEDERAL COM | Eddy County, NM | Oil & Gas Property | Apr 2020 |
| 21070 | CERF JAMES -A | Navarro County, TX | Oil & Gas Property | Jan 2024 |
| 21071 | CERINI | Fresno County, CA | Oil & Gas Property | Jul 2004 |
| 21072 | CERKONEY | Billings County, ND | Oil & Gas Property | Mar 2025 |
| 21073 | CERMAK NE SMF JF | Jefferson County, OH | Gas Property | Dec 2024 |
| 21074 | CERNOCKY 1 | Lincoln County, OK | Oil & Gas Property | Jan 2025 |
| 21075 | CERNOSEK | Fayette County, TX | Oil & Gas Property | Jan 2025 |
| 21076 | CERNY 1607 | Kingfisher County, OK | Oil & Gas Property | Jan 2025 |
| 21077 | CERRITO | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 21078 | CERRITO LAND COMPANY | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 21079 | CERRITO MATRIX | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 21080 | CERRITO-SANCHEZ | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 21081 | CERROS AQF FEDERAL COM | Eddy County, NM | Oil & Gas Property | Feb 2025 |
| 21082 | CERROW | Rooks County, KS | Oil Property | Dec 2024 |
| 21083 | CERULLO | Fayette County, PA | Gas Property | Dec 2024 |
| 21084 | CERVI | Weld County, CO | Oil & Gas Property | Oct 2017 |
| 21085 | CERVI | Weld County, CO | Oil & Gas Property | Jan 2022 |
| 21086 | CESAK JOSEPH B | Milam County, TX | Oil & Gas Property | Dec 2024 |
| 21087 | CESARIO N | Jefferson County, OH | Gas Property | Dec 2024 |
| 21088 | CESSNA | Liberty County, TX | Oil & Gas Property | Jan 2025 |
| 21089 | CESSNA | Kingman County, KS | Oil & Gas Property | Dec 2024 |
| 21090 | CESSPOOCH 15-21-3-3W | Duchesne County, UT | Oil & Gas Property | Feb 2025 |
| 21091 | CETERA | Dewitt County, TX | Oil & Gas Property | Jan 2025 |
| 21092 | CETO | Andrews County, TX | Oil & Gas Property | Jan 2025 |
| 21093 | CETUS | Uintah County, UT | Oil & Gas Property | Jan 2025 |
| 21094 | CETUS 3 | Converse County, WY | Oil & Gas Property | Feb 2025 |
| 21095 | CEYNAR | McKenzie County, ND | Oil & Gas Property | Feb 2025 |
| 21096 | CEYNAR 1 | McKenzie County, ND | Oil & Gas Property | Feb 2025 |
| 21097 | CEYNAR 2 | McKenzie County, ND | Oil & Gas Property | Feb 2025 |
| 21098 | CEYNAR 4 | McKenzie County, ND | Oil & Gas Property | Feb 2025 |
| 21099 | CEYNAR 5 | McKenzie County, ND | Oil & Gas Property | Feb 2025 |
| 21100 | CFC UNIT | Stephens County, TX | Oil & Gas Property | Jan 2025 |