| 8001 | CONSOLIDATION COAL | McDowell County, WV | Gas Property | Dec 2021 |
| 8002 | CONSOLIDATION COAL | Muskingum County, OH | Oil & Gas Property | Dec 2024 |
| 8003 | CONSOLIDATION COAL | Marshall County, WV | Oil & Gas Property | Dec 2014 |
| 8004 | CONSOLIDATION COAL | Marion County, WV | Oil & Gas Property | Sep 2016 |
| 8005 | CONSOLIDATION COAL | Marshall County, WV | Oil & Gas Property | Dec 2021 |
| 8006 | CONSOLIDATION COAL | Harrison County, WV | Oil & Gas Property | Dec 2021 |
| 8007 | CONSOLIDATION COAL C | Muskingum County, OH | Oil & Gas Property | Dec 2024 |
| 8008 | CONSOLIDATION COAL CO | Noble County, OH | Oil & Gas Property | Dec 2024 |
| 8009 | CONSOLIDATION COAL CO | Allegheny County, PA | Oil & Gas Property | Dec 2025 |
| 8010 | CONSOLIDATION COAL CO | Noble County, OH | Oil & Gas Property | Dec 2024 |
| 8011 | CONSOLIDATION COAL CO | Harrison County, WV | Oil & Gas Property | Dec 2021 |
| 8012 | CONSOLIDATION COAL CO | Marshall County, WV | Oil & Gas Property | Dec 2021 |
| 8013 | CONSOLIDATION COAL CO | Allegheny County, PA | Gas Property | Dec 2024 |
| 8014 | CONSOLIDATION COAL CO | Monongalia County, WV | Gas Property | Dec 2019 |
| 8015 | CONSOLIDATION COAL COM | Marshall County, WV | Gas Property | Dec 2021 |
| 8016 | CONSOLIDATION COAL COMPANY FORK RIDGE MSH | Marshall County, WV | Oil & Gas Property | Dec 2021 |
| 8017 | CONST | Washington County, OH | Oil & Gas Property | Dec 2024 |
| 8018 | CONSTANCE | Ector County, TX | Oil & Gas Property | Dec 2025 |
| 8019 | CONSTANCE | Richland County, MT | Oil & Gas Property | Jan 2026 |
| 8020 | CONSTANCE A TAYLOR CONSTANCE TAYLOR WTZ | Wetzel County, WV | Oil & Gas Property | Dec 2021 |
| 8021 | CONSTANCE-STONEY BUTTE HSU | Richland County, MT | Oil & Gas Property | Jan 2026 |
| 8022 | CONSTANT | Pontotoc County, OK | Oil Property | Feb 2025 |
| 8023 | CONSTANTAN 34-174 (N) | Ward County, TX | Oil & Gas Property | Dec 2025 |
| 8024 | CONSTANTIN 3 | Alfalfa County, OK | Oil & Gas Property | Dec 2025 |
| 8025 | CONSTANTINE | Fayette County, TX | Oil & Gas Property | Nov 2025 |
| 8026 | CONSTANTINE | Fayette County, PA | Oil & Gas Property | Dec 2025 |
| 8027 | CONSTATE | Eddy County, NM | Oil & Gas Property | Apr 2022 |
| 8028 | CONSTELLATION | Hockley County, TX | Oil & Gas Property | Nov 2025 |
| 8029 | CONSTELLATION 8 | Garfield County, OK | Oil & Gas Property | Sep 2011 |
| 8030 | CONSTIEN 1-11H | Caddo County, OK | Gas Property | Dec 2025 |
| 8031 | CONSTITUTION | Washington County, OH | Oil & Gas Property | Dec 2024 |
| 8032 | CONSTITUTION 6-25-11 | Alfalfa County, OK | Oil & Gas Property | Dec 2025 |
| 8033 | CONSTITUTION FEDERAL LC21-6 | Weld County, CO | Oil & Gas Property | Dec 2025 |
| 8034 | CONSUMER | Trumbull County, OH | Oil & Gas Property | Dec 2025 |
| 8035 | CONT | Toole County, MT | Gas Property | Nov 2025 |
| 8036 | CONT CAN | Bienville Parish, LA | Oil & Gas Property | Dec 2024 |
| 8037 | CONTAINER CORP | Monroe County, AL | Oil & Gas Property | Feb 1994 |
| 8038 | CONTAINER CORP. OF AMERICA | Escambia County, AL | Oil & Gas Property | Apr 2015 |
| 8039 | CONTI | Chautauqua County, NY | Gas Property | Dec 2024 |
| 8040 | CONTINENTAL | Rio Blanco County, CO | Oil & Gas Property | Jul 2022 |
| 8041 | CONTINENTAL | Comanche County, OK | Oil Property | Dec 2023 |
| 8042 | CONTINENTAL | Caddo County, OK | Oil Property | Sep 2024 |
| 8043 | CONTINENTAL | Bienville Parish, LA | Oil & Gas Property | Jul 2000 |
| 8044 | CONTINENTAL | Fresno County, CA | Oil Property | Jul 2025 |
| 8045 | CONTINENTAL | Eddy County, NM | Oil & Gas Property | Jan 2026 |
| 8046 | CONTINENTAL | Toole County, MT | Gas Property | Dec 2025 |
| 8047 | CONTINENTAL | Winkler County, TX | Oil & Gas Property | Mar 2023 |
| 8048 | CONTINENTAL | Eddy County, NM | Oil & Gas Property | Mar 2018 |
| 8049 | CONTINENTAL | Fresno County, CA | Oil Property | Dec 2025 |
| 8050 | CONTINENTAL | Toole County, MT | Oil & Gas Property | Nov 2025 |
| 8051 | CONTINENTAL | Jack County, TX | Oil & Gas Property | Oct 2025 |
| 8052 | CONTINENTAL | Archer County, TX | Oil & Gas Property | Dec 2025 |
| 8053 | CONTINENTAL | Bienville Parish, LA | Oil & Gas Property | May 1979 |
| 8054 | CONTINENTAL | Jackson Parish, LA | Oil & Gas Property | Sep 2015 |
| 8055 | CONTINENTAL APJ FEDERAL | Lea County, NM | Oil & Gas Property | Jun 2024 |
| 8056 | CONTINENTAL CAN | Bienville Parish, LA | Oil & Gas Property | Oct 2017 |
| 8057 | CONTINENTAL CAN | Bienville Parish, LA | Oil & Gas Property | Jul 2001 |
| 8058 | CONTINENTAL CAN | Bienville Parish, LA | Oil & Gas Property | Feb 1999 |
| 8059 | CONTINENTAL CAN CO | Bienville Parish, LA | Oil & Gas Property | Dec 2017 |
| 8060 | CONTINENTAL FALLS CO. ABC | Archer County, TX | Oil & Gas Property | Jun 2023 |
| 8061 | CONTINENTAL SANFORD | Hutchinson County, TX | Oil & Gas Property | May 2022 |
| 8062 | CONTINENTAL SEC | Bossier Parish, LA | Oil & Gas Property | Dec 2024 |
| 8063 | CONTINENTAL STATE | Lea County, NM | Oil & Gas Property | Nov 1996 |
| 8064 | CONTINENTAL STRAIN | Scurry County, TX | Oil & Gas Property | Dec 2025 |
| 8065 | CONTINENTAL-HALLEY | Winkler County, TX | Oil & Gas Property | Aug 2025 |
| 8066 | CONTL. STATE BANK | Gregg County, TX | Oil & Gas Property | Dec 2025 |
| 8067 | CONTOUR | Ellis County, OK | Oil & Gas Property | Sep 2018 |
| 8068 | CONVERSE | Haskell County, KS | Oil & Gas Property | Sep 2025 |
| 8069 | CONVERSE | Hansford County, TX | Oil & Gas Property | Dec 2025 |
| 8070 | CONVERSE | Ventura County, CA | Oil & Gas Property | Nov 2013 |
| 8071 | CONVERSE R. V | Hansford County, TX | Oil & Gas Property | Dec 2025 |
| 8072 | CONVERSE SHEEP | Niobrara County, WY | Oil & Gas Property | Feb 2025 |
| 8073 | CONVILLE | Bienville Parish, LA | Oil & Gas Property | Sep 2019 |
| 8074 | CONVOY 28 STATE COM | Lea County, NM | Oil & Gas Property | Jan 2026 |
| 8075 | CONVOY BUC STATE | Lea County, NM | Oil & Gas Property | Jan 2026 |
| 8076 | CONWAY | Chautauqua County, KS | Oil Property | Aug 1991 |
| 8077 | CONWAY | Yolo County, CA | Gas Property | Aug 2009 |
| 8078 | CONWAY | Clay County, TX | Oil & Gas Property | Dec 2025 |
| 8079 | CONWAY | Noble County, OK | Oil & Gas Property | Sep 2023 |
| 8080 | CONWAY | Jack County, TX | Oil & Gas Property | Dec 2025 |
| 8081 | CONWAY | Shackelford County, TX | Oil & Gas Property | Jan 2018 |
| 8082 | CONWAY | Carter County, OK | Oil Property | Sep 2025 |
| 8083 | CONWAY | Latimer County, OK | Gas Property | Jan 2026 |
| 8084 | CONWAY | Jack County, TX | Oil & Gas Property | Dec 2025 |
| 8085 | CONWAY | Jack County, TX | Oil & Gas Property | Nov 2025 |
| 8086 | CONWAY 21 | Belmont County, OH | Gas Property | Dec 2025 |
| 8087 | CONWAY HARRIS | Red River Parish, LA | Gas Property | Dec 2024 |
| 8088 | CONWAY, J. W | Reeves County, TX | Oil & Gas Property | Feb 2019 |
| 8089 | CONWILL | Texas County, OK | Oil & Gas Property | Dec 2025 |
| 8090 | CONYERS | Montague County, TX | Oil & Gas Property | Oct 2025 |
| 8091 | CONZELMAN T | Hardin County, TX | Oil & Gas Property | Oct 2025 |
| 8092 | COODY | Stephens County, TX | Oil & Gas Property | Dec 2025 |
| 8093 | COODY, G | Stephens County, TX | Oil & Gas Property | Mar 2021 |
| 8094 | COODY-THOMPSON | Stephens County, TX | Oil & Gas Property | Dec 2025 |
| 8095 | COOGAN FEDERAL | Lea County, NM | Oil & Gas Property | Jan 2018 |
| 8096 | COOK | Red Willow County, NE | Oil Property | Jul 2024 |
| 8097 | COOK | Hughes County, OK | Gas Property | Aug 2023 |
| 8098 | COOK | Caddo Parish, LA | Oil & Gas Property | Dec 2024 |
| 8099 | COOK | Jack County, TX | Oil & Gas Property | Dec 2024 |
| 8100 | COOK | Payne County, OK | Oil Property | Oct 2025 |