| 101 | Nearburg Producing Company | Dallas, TX 75380 | Oil & Gas Operator | Mar 2025 |
| 102 | Nichols,Edwin S Explorations Inc | Graham, TX 76450 | Oil & Gas Operator | Mar 2025 |
| 103 | Nordan Oil & Gas Corporation | Abilene, TX 79604 | Oil & Gas Operator | Feb 2018 |
| 104 | O'Dell, Mitchell | Cross Plains, TX 76443 | Oil & Gas Operator | Mar 2025 |
| 105 | O. H. B. Inc. | San Angelo, TX 76902 | Oil & Gas Operator | Sep 2019 |
| 106 | Orla Petco, Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2025 |
| 107 | Osborn Heirs Co | San Antonio, TX 78217 | Oil & Gas Operator | Jan 2025 |
| 108 | Otex LLC | Santa Anna, TX 76878 | Oil & Gas Operator | Mar 2025 |
| 109 | Paint Rock Operating, LLC | San Angelo, TX 76904 | Oil & Gas Operator | Mar 2025 |
| 110 | Patton, Lloyd | Fort Worth, TX 76113 | Oil & Gas Operator | Aug 2003 |
| 111 | Patton, Lloyd J Estate | Fort Worth, TX 76113 | Oil & Gas Operator | Aug 2003 |
| 112 | Pentergy Operating, LLC | New Braunfels, TX 78132 | Oil & Gas Operator | Mar 2025 |
| 113 | Permian Resources, Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 114 | Petro 2000 Exploration Co. | Katy, TX 77450 | Oil & Gas Operator | Nov 2011 |
| 115 | Petro-West Corporation | Lubbock, TX 79404 | Oil & Gas Operator | Oct 2001 |
| 116 | Pogo Producing Company | Houston, TX 77002 | Oil & Gas Operator | Jan 2008 |
| 117 | Pogo Producing Company LLC | Houston, TX 77002 | Oil & Gas Operator | Jan 2025 |
| 118 | Quatro Oil And Gas, Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Mar 2025 |
| 119 | Questa Oil & Gas Co. | Tulsa, OK 74170 | Oil & Gas Operator | Mar 2015 |
| 120 | Quintx Exploration, Inc. | Horseshoe Bay, TX 78657 | Oil & Gas Operator | Nov 2007 |
| 121 | Regal Petroleum Services | Euless, TX 76039 | Oil & Gas Operator | Aug 2002 |
| 122 | RHB Exploration & Production,LLC | Grapevine, TX 76099 | Oil & Gas Operator | Mar 2025 |
| 123 | Richey, Ray Management Co., Inc. | Fort Worth, TX 76108 | Oil & Gas Operator | Mar 2025 |
| 124 | Rio Bravo Oil Company | The Woodlands, TX 77381 | Oil & Gas Operator | Feb 2002 |
| 125 | Rio-Tex, Inc. | San Antonio, TX 78217 | Oil & Gas Operator | Mar 2025 |
| 126 | RWJ Operating LLC | Dallas, TX 75201 | Oil & Gas Operator | Mar 2025 |
| 127 | Sage Energy Company | San Antonio, TX 78215 | Oil & Gas Operator | Mar 2025 |
| 128 | Sandia Operating Corp. | San Antonio, TX 78270 | Oil & Gas Operator | May 2010 |
| 129 | Sedona Oil & Gas Corporation | Austin, TX 78746 | Oil & Gas Operator | Mar 2025 |
| 130 | Seven Cross Operating, LLC | Santa Anna, TX 76878 | Oil & Gas Operator | Mar 2025 |
| 131 | Sha-Jam Operating Corp. | Midland, TX 79701 | Oil & Gas Operator | Mar 2025 |
| 132 | Shamrock Minerals Corporation | Merkel, TX 79536 | Oil & Gas Operator | Nov 1998 |
| 133 | Sinclair Energy Corporation | Fort Worth, TX 76177 | Oil & Gas Operator | Mar 2025 |
| 134 | Spi Operations LLC | Midland, TX 79710 | Oil & Gas Operator | Jan 2013 |
| 135 | Spirit Energy L.L.C. | Caddo Mills, TX 75135 | Oil & Gas Operator | Dec 2016 |
| 136 | Spruiell Drilling Co., Inc. | Holliday, TX 76366 | Oil & Gas Operator | Mar 2025 |
| 137 | SRG Oil Corporation | Abilene, TX 79604 | Oil & Gas Operator | Apr 1994 |
| 138 | Staley Oil Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Jan 2000 |
| 139 | Stephens, Autry C. | Midland, TX 79701 | Oil & Gas Operator | Mar 2023 |
| 140 | Stringer Oil & Gas Co., Inc. | San Angelo, TX 76902 | Oil & Gas Operator | Oct 1996 |
| 141 | Subsurface Production, Inc. | Coleman, TX 76834 | Oil & Gas Operator | Mar 2025 |
| 142 | Sullivan, Hollis R. Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Feb 2009 |
| 143 | Swartz Oil Company | San Angelo, TX 76906 | Oil & Gas Operator | Mar 2025 |
| 144 | T.O.I. | Midland, TX 79710 | Oil & Gas Operator | Mar 2001 |
| 145 | Taurus Operating, Inc. | Midland, TX 79710 | Oil & Gas Operator | Mar 2025 |
| 146 | Terrell Oil & Gas Production Co. | Hamlin, TX 79520 | Oil & Gas Operator | Mar 2025 |
| 147 | Texas Land & Trading Co, Inc. | Austin, TX 78734 | Oil & Gas Operator | Mar 2008 |
| 148 | Texas Western Oil Company | Sioux Falls, SD 57109 | Oil & Gas Operator | Sep 2013 |
| 149 | Thunderbird Energy, Inc. | Norman, OK 73069 | Oil & Gas Operator | Mar 2025 |
| 150 | Thunderbolt Oil & Gas, Inc. | Abilene, TX 79605 | Oil & Gas Operator | Feb 2004 |
| 151 | TKP Petroleum, Inc. | Lubbock, TX 79464 | Oil & Gas Operator | Mar 2025 |
| 152 | Townsend Company | Abilene, TX 79608 | Oil & Gas Operator | Dec 2021 |
| 153 | Trans Oil Marketing LLC | Abilene, TX 79608 | Oil Operator | Aug 2023 |
| 154 | Tri-Force Operating, L.L.C. | Royse City, TX 75189 | Oil & Gas Operator | Mar 2025 |
| 155 | Tucker Drilling Company, Inc. | San Angelo, TX 76903 | Oil & Gas Operator | Jul 1996 |
| 156 | TXP, Incorporated | San Angelo, TX 76906 | Oil & Gas Operator | Mar 2025 |
| 157 | Ultra Oil & Gas, Inc. | Centerton, AR 72719 | Oil & Gas Operator | Mar 2025 |
| 158 | Unit Petroleum Company | Tulsa, OK 74170 | Oil & Gas Operator | Mar 2025 |
| 159 | Upstream Properties, LLC | Southlake, TX 76092 | Oil & Gas Operator | Mar 2025 |
| 160 | Uptex Operating, L.P. | Dallas, TX 75201 | Oil & Gas Operator | May 2010 |
| 161 | Vanco Oil & Gas Corp. | Abilene, TX 79604 | Oil & Gas Operator | Mar 2025 |
| 162 | W.W.R. Holding, LLC | Coleman, TX 76834 | Oil & Gas Operator | Mar 2008 |
| 163 | Walsh & Watts Inc | Aledo, TX 76008 | Oil & Gas Operator | Mar 2025 |
| 164 | WCWB Energy, LLC | Midland, TX 79701 | Oil Operator | Sep 2015 |
| 165 | Whitehead Prod. Co., Inc. | Humble, TX 77338 | Oil & Gas Operator | Dec 2024 |
| 166 | Willowbend Investments, Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Mar 2025 |
| 167 | Winn Exploration Co., Inc. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Mar 2025 |
| 168 | Xenon Energy, Inc. | Plano, TX 75074 | Oil & Gas Operator | Aug 2003 |
| 169 | Young, Marshall R., Oil Co. | Fort Worth, TX 76107 | Oil & Gas Operator | Mar 2011 |
| 170 | Zachry Oil And Gas Properties | Midland, TX 79708 | Oil & Gas Operator | Mar 2025 |
| 171 | Zinn Petroleum Co. | Houston, TX 77024 | Oil & Gas Operator | Nov 2021 |