| 2001 | COATES-DORCHESTER | Hidalgo County, TX | Oil & Gas Property | Nov 2024 |
| 2002 | COATS | Webb County, TX | Oil & Gas Property | Jun 2026 |
| 2003 | COATS | Stonewall County, TX | Oil Property | Jun 2026 |
| 2004 | COATS & | Coleman County, TX | Oil & Gas Property | Dec 2005 |
| 2005 | COBB | Jack County, TX | Oil & Gas Property | Jun 2026 |
| 2006 | COBB | Gregg County, TX | Oil & Gas Property | Jun 2026 |
| 2007 | COBB | Smith County, TX | Oil & Gas Property | May 2026 |
| 2008 | COBB | Gray County, TX | Oil & Gas Property | Jun 2026 |
| 2009 | COBB | Gray County, TX | Gas Property | Jun 2026 |
| 2010 | COBB | Gray County, TX | Oil & Gas Property | Apr 2026 |
| 2011 | COBB ET AL | Yoakum County, TX | Oil & Gas Property | Jun 2026 |
| 2012 | COBB F | Matagorda County, TX | Oil & Gas Property | Jun 2026 |
| 2013 | COBB L. L | Montague County, TX | Oil & Gas Property | Jun 2026 |
| 2014 | COBB LEASE UNIT #1 | Medina County, TX | Oil & Gas Property | Jun 2026 |
| 2015 | COBB POOL 3724 | Ector County, TX | Oil & Gas Property | Jun 2026 |
| 2016 | COBB S. C | Stephens County, TX | Oil & Gas Property | Jun 2026 |
| 2017 | COBB TOM | Hockley County, TX | Oil & Gas Property | Apr 2024 |
| 2018 | COBB UNIT | Washington County, TX | Oil & Gas Property | Jun 2026 |
| 2019 | COBB UNIT | Denton County, TX | Gas Property | Jun 2026 |
| 2020 | COBB W.R | Cass County, TX | Oil & Gas Property | May 2026 |
| 2021 | COBB-HOLMAN L | Cherokee County, TX | Oil & Gas Property | Jun 2026 |
| 2022 | COBDEN | Dawson County, TX | Oil & Gas Property | Jun 2026 |
| 2023 | COBIA | Madison County, TX | Oil & Gas Property | May 2026 |
| 2024 | COBLE | Hutchinson County, TX | Oil & Gas Property | Jan 2024 |
| 2025 | COBLE | Hutchinson County, TX | Oil & Gas Property | Jun 2026 |
| 2026 | COBLE | Hockley County, TX | Oil & Gas Property | Jun 2026 |
| 2027 | COBLE | Hansford County, TX | Oil & Gas Property | Jun 2026 |
| 2028 | COBLE S | Hutchinson County, TX | Oil & Gas Property | May 2024 |
| 2029 | COBLE W. T | Hockley County, TX | Oil & Gas Property | Jun 2026 |
| 2030 | COBLE W. T | Hutchinson County, TX | Oil & Gas Property | Nov 2021 |
| 2031 | COBRA | Tarrant County, TX | Gas Property | Jun 2026 |
| 2032 | COBRA | McMullen County, TX | Oil & Gas Property | Jun 2026 |
| 2033 | COBRA | Rusk County, TX | Oil & Gas Property | Jun 2026 |
| 2034 | COBRA 1H | Fayette County, TX | Oil & Gas Property | Jun 2026 |
| 2035 | COBRA APPALOOSA PALOMINO UNIT 13H | Dallas County, TX | Gas Property | Jun 2026 |
| 2036 | COBRA KAI D 47-02 | Howard County, TX | Oil & Gas Property | Jun 2026 |
| 2037 | COBRA PALOMINO | Tarrant County, TX | Gas Property | Jun 2026 |
| 2038 | COBRA STATE 2 | Reeves County, TX | Oil & Gas Property | Jun 2026 |
| 2039 | COCA COLA | Jack County, TX | Oil & Gas Property | Jun 2026 |
| 2040 | COCANAUGHER | Wise County, TX | Oil & Gas Property | Aug 2012 |
| 2041 | COCANOUGHER | Wise County, TX | Oil & Gas Property | Jun 2026 |
| 2042 | COCANOUGHER | Wise County, TX | Oil & Gas Property | Jun 2026 |
| 2043 | COCANOUGHER | Wise County, TX | Oil & Gas Property | Jun 2026 |
| 2044 | COCANOUGHER G | Wise County, TX | Oil & Gas Property | Jun 2026 |
| 2045 | COCANOUGHER, G. H | Wise County, TX | Oil & Gas Property | Jun 2026 |
| 2046 | COCHISE | Winkler County, TX | Oil & Gas Property | Jun 2026 |
| 2047 | COCHISE | Yoakum County, TX | Oil & Gas Property | Jun 2026 |
| 2048 | COCHRAN | Fisher County, TX | Oil & Gas Property | Jun 2026 |
| 2049 | COCHRAN | Dawson County, TX | Oil & Gas Property | Jun 2026 |
| 2050 | COCHRAN | Burleson County, TX | Oil & Gas Property | May 2026 |
| 2051 | COCHRAN | Throckmorton County, TX | Oil & Gas Property | Jul 2020 |
| 2052 | COCHRAN | Wichita County, TX | Oil & Gas Property | May 2025 |
| 2053 | COCHRAN | Pecos County, TX | Oil & Gas Property | Jun 2026 |
| 2054 | COCHRAN | Colorado County, TX | Oil & Gas Property | May 2026 |
| 2055 | COCHRAN | Hockley County, TX | Oil & Gas Property | Jun 2026 |
| 2056 | COCHRAN | Ector County, TX | Oil & Gas Property | Jun 2026 |
| 2057 | COCHRAN | Colorado County, TX | Oil & Gas Property | Aug 2019 |
| 2058 | COCHRAN | Nolan County, TX | Oil & Gas Property | Jun 2026 |
| 2059 | COCHRAN UNIT | Karnes County, TX | Oil & Gas Property | Jun 2026 |
| 2060 | COCHRUM GAS UNIT | Freestone County, TX | Oil & Gas Property | Jun 2026 |
| 2061 | COCINA BLANCA SA | La Salle County, TX | Oil & Gas Property | Jun 2026 |
| 2062 | COCKBURN | Wharton County, TX | Oil & Gas Property | Jun 2026 |
| 2063 | COCKBURN | Wise County, TX | Oil & Gas Property | Mar 2015 |
| 2064 | COCKBURN DEEP FRIO UNIT NO. 1 | Wharton County, TX | Oil & Gas Property | Jun 2026 |
| 2065 | COCKBURN OIL CO | Harris County, TX | Oil & Gas Property | Mar 2023 |
| 2066 | COCKE AND GOODRICH UNIT 1 | Victoria County, TX | Oil & Gas Property | Jun 2026 |
| 2067 | COCKERELL, L. L. ESTATE UNIT | Henderson County, TX | Gas Property | Apr 2016 |
| 2068 | COCKRELL | Hutchinson County, TX | Oil & Gas Property | Jun 2026 |
| 2069 | COCKRELL | Fort Bend County, TX | Oil & Gas Property | Feb 2008 |
| 2070 | COCKRELL RANCH T-K A&B | Hutchinson County, TX | Oil & Gas Property | Nov 2016 |
| 2071 | COCODRILO | Brazos County, TX | Oil & Gas Property | May 2026 |
| 2072 | COCONUT 10 | Howard County, TX | Oil & Gas Property | Apr 2026 |
| 2073 | COCONUT UNIT | Atascosa County, TX | Oil & Gas Property | Jun 2026 |
| 2074 | CODIGO | Webb County, TX | Oil & Gas Property | Jun 2026 |
| 2075 | CODY | Upton County, TX | Oil & Gas Property | Jun 2026 |
| 2076 | CODY | Nueces County, TX | Oil & Gas Property | Oct 2019 |
| 2077 | CODY 124 | Ochiltree County, TX | Oil & Gas Property | Jun 2026 |
| 2078 | CODY 56-3 | Reeves County, TX | Oil & Gas Property | Jun 2026 |
| 2079 | CODY BELL JR | Upton County, TX | Oil & Gas Property | Jun 2026 |
| 2080 | CODY C UNIT | Upton County, TX | Oil & Gas Property | Jun 2026 |
| 2081 | COE H. W. 2 | Val Verde County, TX | Oil & Gas Property | Jun 2026 |
| 2082 | COE HAZEL WHITEHEAD | Val Verde County, TX | Oil & Gas Property | Jun 2026 |
| 2083 | COE, M. FEE | Harris County, TX | Oil & Gas Property | May 2003 |
| 2084 | COFFEE | Hemphill County, TX | Oil & Gas Property | Jun 2026 |
| 2085 | COFFEE | Moore County, TX | Oil & Gas Property | May 2026 |
| 2086 | COFFEE | Moore County, TX | Oil & Gas Property | Jun 2026 |
| 2087 | COFFEE | Carson County, TX | Oil & Gas Property | May 2026 |
| 2088 | COFFEE | Midland County, TX | Oil & Gas Property | Dec 2021 |
| 2089 | COFFEE H | Moore County, TX | Gas Property | Jun 2026 |
| 2090 | COFFEE R | Wise County, TX | Oil & Gas Property | Jun 2026 |
| 2091 | COFFEE ROY C | Wise County, TX | Oil & Gas Property | Jun 2026 |
| 2092 | COFFEY | Victoria County, TX | Oil & Gas Property | Jun 2026 |
| 2093 | COFFIELD | Martin County, TX | Oil & Gas Property | Jul 2023 |
| 2094 | COFFIELD | Milam County, TX | Oil & Gas Property | Jun 2026 |
| 2095 | COFFIELD | Milam County, TX | Oil & Gas Property | Jun 2026 |
| 2096 | COFFIELD | Milam County, TX | Oil & Gas Property | Jun 2026 |
| 2097 | COFFIELD | Milam County, TX | Oil & Gas Property | Mar 2018 |
| 2098 | COFFIELD | Gray County, TX | Gas Property | Jun 2026 |
| 2099 | COFFIELD | Milam County, TX | Oil & Gas Property | Jun 2026 |
| 2100 | COFFIELD | Burleson County, TX | Oil & Gas Property | Jun 2026 |