| 4001 | STUMBERG ESTATE UNIT | Dimmit County, TX | Oil & Gas Property | Jun 2026 |
| 4002 | STUMBERG RANCH UNIT C | Dimmit County, TX | Oil & Gas Property | Jun 2026 |
| 4003 | STUMBERG STATE | Dimmit County, TX | Oil & Gas Property | Jun 2026 |
| 4004 | STUMHOFFER | Upton County, TX | Oil & Gas Property | Mar 2019 |
| 4005 | STUMP | Ochiltree County, TX | Oil & Gas Property | Jun 2026 |
| 4006 | STUMP | Archer County, TX | Oil & Gas Property | Feb 2026 |
| 4007 | STUMP-GRABEEL | Ochiltree County, TX | Oil & Gas Property | Nov 2014 |
| 4008 | STURDY | Moore County, TX | Gas Property | May 2026 |
| 4009 | STURGEON | Brazos County, TX | Oil & Gas Property | May 2026 |
| 4010 | STURGEON | Scurry County, TX | Oil & Gas Property | Jun 2026 |
| 4011 | STURGES GU | Harrison County, TX | Oil & Gas Property | May 2026 |
| 4012 | STURM | Archer County, TX | Oil & Gas Property | Jun 2026 |
| 4013 | STURM ESTATE | Archer County, TX | Oil & Gas Property | Jun 2026 |
| 4014 | STURMTRUPPEN UNIT | McMullen County, TX | Oil & Gas Property | Jun 2026 |
| 4015 | STUTT ROBERT | Wise County, TX | Oil & Gas Property | Jun 2026 |
| 4016 | STW (ALLOC) 1H | Harrison County, TX | Oil & Gas Property | Jun 2026 |
| 4017 | SUBLETT | Robertson County, TX | Oil & Gas Property | Jun 2015 |
| 4018 | SUBLETT | Jack County, TX | Oil & Gas Property | Jun 2026 |
| 4019 | SUBLETT J. GU | San Augustine County, TX | Oil & Gas Property | Jun 2026 |
| 4020 | SUBLIME UNIT | Karnes County, TX | Oil & Gas Property | Jun 2026 |
| 4021 | SUCCUBUS UNIT B 25-24 | Borden County, TX | Oil & Gas Property | Jun 2026 |
| 4022 | SUCCUBUS-ROUGAROU 24-37 | Borden County, TX | Oil & Gas Property | Jun 2026 |
| 4023 | SUDDERTH | Crockett County, TX | Oil & Gas Property | Jun 2026 |
| 4024 | SUDDUTH, H. W | Newton County, TX | Oil & Gas Property | Nov 1996 |
| 4025 | SUE BARNETT UNIT | Tarrant County, TX | Gas Property | Jun 2026 |
| 4026 | SUE FULLER | Starr County, TX | Oil & Gas Property | Jun 2026 |
| 4027 | SUE HANCOCK | Crosby County, TX | Oil Property | Jun 2026 |
| 4028 | SUERTE | Pecos County, TX | Oil & Gas Property | Jun 2026 |
| 4029 | SUESS | Lipscomb County, TX | Oil & Gas Property | Jun 2026 |
| 4030 | SUEZ 10-15-34-40 | Mitchell County, TX | Oil & Gas Property | Jun 2026 |
| 4031 | SUGAR CRISP | Hood County, TX | Oil & Gas Property | Jun 2026 |
| 4032 | SUGAR GLIDER GAS UNIT | San Augustine County, TX | Gas Property | Jun 2026 |
| 4033 | SUGAR RAIDER 191 | Reeves County, TX | Oil & Gas Property | Jun 2026 |
| 4034 | SUGAR RANCH | Zavala County, TX | Oil & Gas Property | Jun 2026 |
| 4035 | SUGAR-REYNOLDS | Scurry County, TX | Oil & Gas Property | Jun 2026 |
| 4036 | SUGARBERRY 45 | Glasscock County, TX | Oil & Gas Property | Jun 2026 |
| 4037 | SUGARBERRY-BLACKSTO | Tyler County, TX | Oil & Gas Property | Jun 2026 |
| 4038 | SUGAREK | Bee County, TX | Oil & Gas Property | Jul 2025 |
| 4039 | SUGARLAND | Dimmit County, TX | Oil & Gas Property | Jun 2026 |
| 4040 | SUGARLOAF 74 | Reeves County, TX | Oil & Gas Property | Jun 2026 |
| 4041 | SUGG | Irion County, TX | Oil & Gas Property | Jun 2026 |
| 4042 | SUGG | Reagan County, TX | Oil & Gas Property | Jun 2026 |
| 4043 | SUGG | Irion County, TX | Oil & Gas Property | Jun 2026 |
| 4044 | SUGG | Tom Green County, TX | Oil & Gas Property | Jun 2026 |
| 4045 | SUGG | Irion County, TX | Oil & Gas Property | Oct 2021 |
| 4046 | SUGG | Reagan County, TX | Oil & Gas Property | Jun 2026 |
| 4047 | SUGG | Sterling County, TX | Oil & Gas Property | Jun 2026 |
| 4048 | SUGG | Irion County, TX | Oil & Gas Property | Jun 2026 |
| 4049 | SUGG | Irion County, TX | Oil & Gas Property | Jun 2026 |
| 4050 | SUGG A 141-140 (ALLOC | Reagan County, TX | Oil & Gas Property | May 2026 |
| 4051 | SUGG A 171-17 | Reagan County, TX | Oil & Gas Property | May 2026 |
| 4052 | SUGG A 185-187 (ALLOC | Reagan County, TX | Oil & Gas Property | May 2026 |
| 4053 | SUGG A 197-195 (ALLOC | Reagan County, TX | Oil & Gas Property | May 2026 |
| 4054 | SUGG A 208-209 (ALLOC | Reagan County, TX | Oil & Gas Property | May 2026 |
| 4055 | SUGG B 137-25 (ALLOC | Reagan County, TX | Oil & Gas Property | May 2026 |
| 4056 | SUGG B 163-162 (ALLOC | Reagan County, TX | Oil & Gas Property | May 2026 |
| 4057 | SUGG B11 | Reagan County, TX | Oil & Gas Property | May 2026 |
| 4058 | SUGG B131-13 | Reagan County, TX | Oil & Gas Property | May 2026 |
| 4059 | SUGG C. H | Reagan County, TX | Oil & Gas Property | Aug 2012 |
| 4060 | SUGG D 190 | Sterling County, TX | Oil & Gas Property | Jun 2013 |
| 4061 | SUGG E 197-19 | Reagan County, TX | Oil & Gas Property | May 2026 |
| 4062 | SUGG E 208-20 | Reagan County, TX | Oil & Gas Property | May 2026 |
| 4063 | SUGG RANCH 18 | Sterling County, TX | Oil & Gas Property | Jun 2026 |
| 4064 | SUGG SAMMIE | Irion County, TX | Oil & Gas Property | Dec 2018 |
| 4065 | SUGG STRIP | Irion County, TX | Oil & Gas Property | May 2026 |
| 4066 | SUGG-FA | Irion County, TX | Oil & Gas Property | Jun 2026 |
| 4067 | SUGG-FARM | Irion County, TX | Oil & Gas Property | May 2026 |
| 4068 | SUGG-JANE TAYLOR | Irion County, TX | Oil & Gas Property | Jun 2026 |
| 4069 | SUGG/FARM | Irion County, TX | Oil & Gas Property | Jun 2026 |
| 4070 | SUGGETT | Andrews County, TX | Oil & Gas Property | Jun 2026 |
| 4071 | SUGGS 73 | Irion County, TX | Oil & Gas Property | Jun 2026 |
| 4072 | SUGGS MARGARET | Harrison County, TX | Oil & Gas Property | Jun 2026 |
| 4073 | SULAK T | Milam County, TX | Oil & Gas Property | Jun 2026 |
| 4074 | SULCATA | Karnes County, TX | Oil & Gas Property | Jun 2026 |
| 4075 | SULLENGER | Tom Green County, TX | Gas Property | Jun 2013 |
| 4076 | SULLIVAN | Gray County, TX | Gas Property | Jun 2026 |
| 4077 | SULLIVAN | Gray County, TX | Oil & Gas Property | Jun 2026 |
| 4078 | SULLIVAN | Moore County, TX | Oil & Gas Property | Jun 2026 |
| 4079 | SULLIVAN | Live Oak County, TX | Oil & Gas Property | May 2026 |
| 4080 | SULLIVAN | Garza County, TX | Oil & Gas Property | Jun 2026 |
| 4081 | SULLIVAN | Leon County, TX | Oil & Gas Property | Mar 2025 |
| 4082 | SULLIVAN | Pecos County, TX | Oil & Gas Property | Jun 2026 |
| 4083 | SULLIVAN | Brooks County, TX | Oil & Gas Property | Jun 2026 |
| 4084 | SULLIVAN | Wilbarger County, TX | Oil & Gas Property | Jun 2026 |
| 4085 | SULLIVAN | Hutchinson County, TX | Oil & Gas Property | Oct 2022 |
| 4086 | SULLIVAN DEEP C GAS UNIT NO. 1 | Brooks County, TX | Oil & Gas Property | Apr 2026 |
| 4087 | SULLIVAN HAROLD | Leon County, TX | Oil & Gas Property | Jun 2026 |
| 4088 | SULLIVAN JO | Leon County, TX | Oil & Gas Property | Dec 2025 |
| 4089 | SULLIVAN PAULINE G | Denton County, TX | Oil & Gas Property | Jun 2026 |
| 4090 | SULLIVAN R. GAS UNIT | Robertson County, TX | Oil & Gas Property | Jun 2026 |
| 4091 | SULLIVAN UNIT | Pecos County, TX | Oil Property | Jun 2026 |
| 4092 | SULLIVAN VENA GAS UNIT 1H | Wise County, TX | Oil & Gas Property | Jun 2026 |
| 4093 | SULLIVAN-HICKMAN | Johnson County, TX | Oil & Gas Property | Jun 2026 |
| 4094 | SULLY UNIT | Leon County, TX | Oil & Gas Property | Jun 2026 |
| 4095 | SULO-PETERS | Duval County, TX | Oil & Gas Property | Apr 2026 |
| 4096 | SULTEMEIER UNIT | Menard County, TX | Oil Property | Jun 2026 |
| 4097 | SULTENFUSS | Dimmit County, TX | Oil & Gas Property | Jun 2026 |
| 4098 | SUMBERA | La Salle County, TX | Oil & Gas Property | Jun 2026 |
| 4099 | SUMMER CREEK | Tarrant County, TX | Gas Property | Jun 2026 |
| 4100 | SUMMERBLISS | Fayette County, TX | Oil & Gas Property | Jun 2026 |