| 2001 | SLAUGHTER 7 | Martin County, TX | Oil & Gas Property | Mar 2026 |
| 2002 | SLAUGHTER A | Clay County, TX | Oil & Gas Property | Apr 2026 |
| 2003 | SLAUGHTER A | Hockley County, TX | Oil & Gas Property | Apr 2026 |
| 2004 | SLAUGHTER CONSOLIDATED | Hockley County, TX | Oil & Gas Property | Apr 2026 |
| 2005 | SLAUGHTER DOROTHY | Grayson County, TX | Oil & Gas Property | Apr 2026 |
| 2006 | SLAUGHTER ESTATE | Cochran County, TX | Oil & Gas Property | Jan 2000 |
| 2007 | SLAUGHTER ESTATE UNIT | Hockley County, TX | Oil & Gas Property | Apr 2026 |
| 2008 | SLAUGHTER GAS UNIT 1 | Karnes County, TX | Oil & Gas Property | Apr 2026 |
| 2009 | SLAUGHTER GAS UNIT B | Harrison County, TX | Oil & Gas Property | Apr 2026 |
| 2010 | SLAUGHTER HEIGHTS UNIT | Tarrant County, TX | Gas Property | Apr 2026 |
| 2011 | SLAUGHTER NW. (SAN ANDRES) UNIT | Cochran County, TX | Oil & Gas Property | Apr 2026 |
| 2012 | SLAUGHTER, LILIA BRUNI | Webb County, TX | Oil & Gas Property | Apr 2026 |
| 2013 | SLAUGHTER-RHODES TRUST C | Karnes County, TX | Oil & Gas Property | Apr 2026 |
| 2014 | SLAVIN | Ochiltree County, TX | Oil & Gas Property | Apr 2026 |
| 2015 | SLAY | Wise County, TX | Oil & Gas Property | Apr 2026 |
| 2016 | SLAY C. W | Tarrant County, TX | Oil & Gas Property | Apr 2026 |
| 2017 | SLAYTON UNIT | Smith County, TX | Oil & Gas Property | Apr 2026 |
| 2018 | SLC PRATT | Wichita County, TX | Oil & Gas Property | Aug 2013 |
| 2019 | SLC RAMMING | Wichita County, TX | Oil & Gas Property | Apr 2026 |
| 2020 | SLC SEC. 121 | Jones County, TX | Oil & Gas Property | Apr 2026 |
| 2021 | SLEDGE | Reeves County, TX | Oil & Gas Property | Apr 2026 |
| 2022 | SLEDGE SISTERS | Johnson County, TX | Gas Property | Apr 2026 |
| 2023 | SLEDGE UNIT | Lee County, TX | Oil & Gas Property | Apr 2026 |
| 2024 | SLEDGE UNIT 06-07 | Howard County, TX | Oil & Gas Property | Mar 2026 |
| 2025 | SLEDGE-NEWTON 07-43 | Howard County, TX | Oil & Gas Property | Mar 2026 |
| 2026 | SLEDGEHAMMER 69 | Hansford County, TX | Oil & Gas Property | Apr 2026 |
| 2027 | SLEEPER | Terry County, TX | Oil & Gas Property | Apr 2026 |
| 2028 | SLEEPING INDIAN A | Ward County, TX | Oil & Gas Property | Apr 2026 |
| 2029 | SLEMMONS | Palo Pinto County, TX | Oil & Gas Property | Apr 2020 |
| 2030 | SLICE AW | Atascosa County, TX | Oil & Gas Property | Apr 2026 |
| 2031 | SLICK | Gonzales County, TX | Oil & Gas Property | Apr 2026 |
| 2032 | SLICK | Starr County, TX | Oil & Gas Property | Apr 2026 |
| 2033 | SLICK EST | Starr County, TX | Oil & Gas Property | Apr 2026 |
| 2034 | SLICK EST | Starr County, TX | Oil & Gas Property | Apr 2026 |
| 2035 | SLICK SAND OIL UNIT | Bee County, TX | Oil & Gas Property | May 2010 |
| 2036 | SLICK T. B | Starr County, TX | Oil & Gas Property | Apr 2026 |
| 2037 | SLICK T.B | Starr County, TX | Oil & Gas Property | Apr 2026 |
| 2038 | SLICK, TOM | Bee County, TX | Oil & Gas Property | May 2008 |
| 2039 | SLICK-STATE | Starr County, TX | Oil & Gas Property | Apr 2026 |
| 2040 | SLIDER | Midland County, TX | Oil & Gas Property | Apr 2026 |
| 2041 | SLIDER | Martin County, TX | Oil & Gas Property | Apr 2026 |
| 2042 | SLIDER | Hockley County, TX | Oil Property | Apr 2026 |
| 2043 | SLIMP J | Wise County, TX | Oil & Gas Property | Apr 2026 |
| 2044 | SLING | Duval County, TX | Oil & Gas Property | Apr 2026 |
| 2045 | SLINGING UNIT | Grayson County, TX | Oil & Gas Property | Apr 2026 |
| 2046 | SLINGSHOT | Loving County, TX | Oil & Gas Property | Apr 2026 |
| 2047 | SLINGSHOT ENGAGED UNIT 75-82 | Martin County, TX | Oil & Gas Property | Apr 2026 |
| 2048 | SLINGSHOT STATE | Loving County, TX | Oil & Gas Property | Apr 2026 |
| 2049 | SLIVA | Lee County, TX | Oil & Gas Property | Oct 1995 |
| 2050 | SLIVA W. J | Fort Bend County, TX | Oil & Gas Property | Sep 2025 |
| 2051 | SLO-POKE 149 HG | Ward County, TX | Oil & Gas Property | Apr 2026 |
| 2052 | SLOAN | Navarro County, TX | Oil & Gas Property | Oct 2022 |
| 2053 | SLOAN | Stephens County, TX | Oil & Gas Property | Apr 2026 |
| 2054 | SLOAN | Throckmorton County, TX | Oil & Gas Property | Feb 2026 |
| 2055 | SLOAN | Jones County, TX | Oil Property | Apr 2026 |
| 2056 | SLOAN | Shackelford County, TX | Oil & Gas Property | Apr 2026 |
| 2057 | SLOAN | Shackelford County, TX | Oil & Gas Property | Apr 2026 |
| 2058 | SLOAN | Jack County, TX | Oil & Gas Property | Apr 2026 |
| 2059 | SLOAN | Ward County, TX | Oil & Gas Property | Apr 2026 |
| 2060 | SLOAN A | Sherman County, TX | Gas Property | Apr 2026 |
| 2061 | SLOAN LAURA | Navarro County, TX | Oil & Gas Property | Apr 2026 |
| 2062 | SLOAN ROSS | Shackelford County, TX | Oil & Gas Property | Feb 2019 |
| 2063 | SLOAN-MARTIN | Stephens County, TX | Oil & Gas Property | Apr 2026 |
| 2064 | SLONE | Matagorda County, TX | Oil & Gas Property | Apr 2026 |
| 2065 | SLONE | Harrison County, TX | Oil & Gas Property | Jan 2026 |
| 2066 | SLOOP | Winkler County, TX | Oil & Gas Property | Apr 2026 |
| 2067 | SLOSS UNIT | Montague County, TX | Oil & Gas Property | Apr 2026 |
| 2068 | SLOUGH B | Brazos County, TX | Oil & Gas Property | Mar 2026 |
| 2069 | SLOVACEK | Burleson County, TX | Oil & Gas Property | Mar 2026 |
| 2070 | SLOVACEK-G | Burleson County, TX | Oil & Gas Property | Apr 2026 |
| 2071 | SLOVACEK-SLOVACEK UNIT | Burleson County, TX | Oil & Gas Property | Mar 2026 |
| 2072 | SLUSHER | Jack County, TX | Oil & Gas Property | Apr 2026 |
| 2073 | SLUSHER | Palo Pinto County, TX | Oil & Gas Property | Feb 2026 |
| 2074 | SLYDELL | Martin County, TX | Oil & Gas Property | Apr 2026 |
| 2075 | SLYTHERIN | La Salle County, TX | Oil & Gas Property | Apr 2026 |
| 2076 | SMAILS | Howard County, TX | Oil & Gas Property | Apr 2026 |
| 2077 | SMALL BUMP | Crane County, TX | Oil Property | Apr 2026 |
| 2078 | SMALL EYED 54-1-36-25 UNIT | Loving County, TX | Oil & Gas Property | Apr 2026 |
| 2079 | SMALLWOOD | Hockley County, TX | Oil & Gas Property | Jan 2023 |
| 2080 | SMALLWOOD J.L | Hockley County, TX | Oil & Gas Property | May 2015 |
| 2081 | SMART UNIT | La Salle County, TX | Oil & Gas Property | Apr 2026 |
| 2082 | SMART VIDA | Upshur County, TX | Oil & Gas Property | Apr 2026 |
| 2083 | SMARTT | Newton County, TX | Oil & Gas Property | Apr 2026 |
| 2084 | SMARTT L. E | Mitchell County, TX | Oil & Gas Property | Apr 2026 |
| 2085 | SMARTY JONES 26 | Reeves County, TX | Oil & Gas Property | Apr 2026 |
| 2086 | SMARTY JONES 42 STATE UNIT | Culberson County, TX | Oil & Gas Property | Apr 2026 |
| 2087 | SMASHBOY 1-29 | Ward County, TX | Oil & Gas Property | Apr 2026 |
| 2088 | SMASHED NICKEL 536 | Yoakum County, TX | Oil & Gas Property | Apr 2026 |
| 2089 | SMB TRUST | Midland County, TX | Oil & Gas Property | Feb 2024 |
| 2090 | SMEAD HEIRS | Gregg County, TX | Oil & Gas Property | Apr 2026 |
| 2091 | SMELLEY | Johnson County, TX | Oil & Gas Property | Apr 2026 |
| 2092 | SMELLEY | Parker County, TX | Oil & Gas Property | Apr 2026 |
| 2093 | SMELLEY | Parker County, TX | Oil & Gas Property | Apr 2026 |
| 2094 | SMELLEY, J. W | Atascosa County, TX | Oil & Gas Property | Jul 2025 |
| 2095 | SMITH | Jefferson County, TX | Oil & Gas Property | Nov 2022 |
| 2096 | SMITH | Moore County, TX | Oil & Gas Property | Apr 2026 |
| 2097 | SMITH | Jack County, TX | Oil & Gas Property | Jan 2025 |
| 2098 | SMITH | McMullen County, TX | Oil & Gas Property | Apr 2026 |
| 2099 | SMITH | Panola County, TX | Oil & Gas Property | Apr 2026 |
| 2100 | SMITH | Gray County, TX | Oil & Gas Property | Apr 2026 |