| 101 | Meeker & Company | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2025 |
| 102 | Mesquite SWD Inc | Carlsbad, NM 88221 | Oil & Gas Operator | Dec 2025 |
| 103 | Miltex Oil Company | Boerne, TX 78006 | Oil & Gas Operator | Dec 2025 |
| 104 | Mobil Oil Corporation | Houston, TX 77210 | Oil & Gas Operator | Dec 2007 |
| 105 | Moontower Resources Op, LLC | Austin, TX 78732 | Oil & Gas Operator | Apr 2025 |
| 106 | Moore Investment Co. | Abilene, TX 79604 | Oil & Gas Operator | Dec 2025 |
| 107 | Mr Oil Company | Monahans, TX 79756 | Oil & Gas Operator | Nov 2004 |
| 108 | Ogx Resources LLC | Midland, TX 79702 | Oil & Gas Operator | Oct 2011 |
| 109 | Oliver Oil & Gas | Midland, TX 79702 | Oil & Gas Operator | Dec 2025 |
| 110 | Orla Petco, Inc. | Midland, TX 79708 | Oil & Gas Operator | Dec 2025 |
| 111 | Oxy USA Inc | Houston, TX 77046 | Oil & Gas Operator | Dec 2025 |
| 112 | Panther Exploration, LLC | Tulsa, OK 74136 | Oil & Gas Operator | Feb 2017 |
| 113 | PDC Permian, Inc. | Midland, TX 79706 | Oil & Gas Operator | Dec 2025 |
| 114 | Perimeter Resource Company | Midland, TX 79702 | Oil & Gas Operator | Dec 2025 |
| 115 | Permian Resources Operating, LLC | Midland, TX 79701 | Oil & Gas Operator | Dec 2025 |
| 116 | Petro-Hunt Permian, LLC | Dallas, TX 75201 | Oil & Gas Operator | Dec 2025 |
| 117 | Petro-Hunt, L.L.C. | Dallas, TX 75201 | Oil & Gas Operator | Dec 2025 |
| 118 | Petrohawk Operating Company | Houston, TX 77056 | Oil & Gas Operator | Oct 2021 |
| 119 | Petroleum Technical Services Co. | Midland, TX 79707 | Oil & Gas Operator | Dec 2004 |
| 120 | Plains Marketing, LP | Cushing, OK 74023 | Oil Operator | Jan 2012 |
| 121 | Pogo Producing Company | Houston, TX 77002 | Oil & Gas Operator | Jan 2008 |
| 122 | Pogo Producing Company LLC | Houston, TX 77002 | Oil & Gas Operator | Oct 2025 |
| 123 | Primrose Operating Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Jun 2007 |
| 124 | Prize Operating Company | Grapevine, TX 76051 | Oil & Gas Operator | Aug 2016 |
| 125 | Quay Valley, Inc. | Midland, TX 79710 | Oil & Gas Operator | Oct 2007 |
| 126 | Quicksilver Resources Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Mar 2018 |
| 127 | Range Production Company | Fort Worth, TX 76102 | Oil & Gas Operator | Sep 2021 |
| 128 | Recovery Operating LP | San Angelo, TX 76904 | Oil & Gas Operator | Dec 2025 |
| 129 | Reliance Energy, Inc. | Midland, TX 79701 | Oil & Gas Operator | Dec 2025 |
| 130 | Remuda Operating Company | Midland, TX 79711 | Oil & Gas Operator | Dec 2025 |
| 131 | Republic Energy Inc. | Decatur, TX 76234 | Oil & Gas Operator | Dec 2016 |
| 132 | Ring Energy, Inc. | Midland, TX 79702 | Oil & Gas Operator | Dec 2025 |
| 133 | Roxanna Oil Company | Oklahoma City, OK 73120-2717 | Oil Operator | Aug 2016 |
| 134 | S & P Energy | Benbrook, TX 76126 | Oil & Gas Operator | Oct 1994 |
| 135 | Samson Hydrocarbons Company | Tulsa, OK 74103 | Oil & Gas Operator | Nov 2016 |
| 136 | Samson Lone Star LP | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2007 |
| 137 | Samson Lone Star, LLC | Tulsa, OK 74103 | Oil & Gas Operator | Dec 2025 |
| 138 | Samson Resources Company | Tulsa, OK 74103 | Oil & Gas Operator | Oct 2025 |
| 139 | Scala Energy Operating, LLC | Midland, TX 79701 | Oil & Gas Operator | Oct 2023 |
| 140 | Shell Western E&P | Houston, TX 77001 | Oil & Gas Operator | Dec 2025 |
| 141 | Shell Western E&P Inc. | Houston, TX 77001 | Oil & Gas Operator | May 2011 |
| 142 | Shenandoah Petroleum Corporation | Midland, TX 79705 | Oil & Gas Operator | Dec 2025 |
| 143 | Siete Oil And Gas Corporation | Midland, TX 79702 | Oil & Gas Operator | Aug 2003 |
| 144 | Slack, R. C. | Pecos, TX 79772 | Oil & Gas Operator | Jul 2000 |
| 145 | Sledge Bros. Oil Co. | Midland, TX 79702 | Oil & Gas Operator | Mar 2016 |
| 146 | Snow Oil & Gas Inc. | Andrews, TX 79714 | Oil & Gas Operator | Dec 2025 |
| 147 | Southwest Royalties, Inc. | Midland, TX 79710 | Oil & Gas Operator | Dec 2025 |
| 148 | Southwestern Energy Prod Co | Houston, TX 77032 | Oil & Gas Operator | Jun 2015 |
| 149 | Spi Operations LLC | Midland, TX 79710 | Oil & Gas Operator | Jan 2013 |
| 150 | St. Clair Energy Corporation | Tulsa, OK 74153 | Oil & Gas Operator | Mar 2008 |
| 151 | Stasney, H. R. & Sons, LTD. | Albany, TX 76430 | Oil & Gas Operator | Dec 2025 |
| 152 | Storm Peak Energy, LLC | Midland, TX 79702 | Oil & Gas Operator | May 2012 |
| 153 | Swepi LP | Houston, TX 77079 | Oil & Gas Operator | Jul 2020 |
| 154 | Taurus Exploration U.S.A., Inc. | Midland, TX 79705 | Oil & Gas Operator | Nov 1998 |
| 155 | TC Oil And Gas, LLC | Denton, TX 76205 | Oil Operator | Dec 2025 |
| 156 | Texaco E & P Inc. | Houston, TX 77099 | Oil & Gas Operator | Dec 2025 |
| 157 | Texas Operating & Consult., LLC | Abilene, TX 79608 | Oil & Gas Operator | Feb 2018 |
| 158 | Texasgulf Inc. | Newgulf, TX 77462 | Oil & Gas Operator | Jul 1994 |
| 159 | Three Rivers Oper Co III LLC | Austin, TX 78735 | Oil & Gas Operator | Nov 2017 |
| 160 | Three Rivers Operating Co LLC | Austin, TX 78735 | Oil & Gas Operator | Mar 2017 |
| 161 | Tidwell Production Company | Sonora, TX 76950 | Oil & Gas Operator | Dec 2025 |
| 162 | Titan Resources I, Inc. | Midland, TX 79701 | Oil & Gas Operator | Jun 2000 |
| 163 | U. S. Energy Development Corporation | Fort Worth, TX 76164 | Oil & Gas Operator | Dec 2025 |
| 164 | U.S. Sovereign Oil And Gas, Inc. | Dallas, TX 75355 | Oil & Gas Operator | Dec 2025 |
| 165 | Viola Production Inc | Dallas, TX 75251 | Oil & Gas Operator | Dec 2025 |
| 166 | Waterbridge Texas Operating LLC | Houston, TX 77056 | Oil & Gas Operator | Dec 2025 |
| 167 | Western Global Oil, Inc | Deerfld Beach, FL 33442 | Oil Operator | Dec 2025 |
| 168 | Whiting Oil And Gas Corporation | Houston, TX 77002 | Oil & Gas Operator | Dec 2025 |
| 169 | Wolf Energy | Midland, TX 79701 | Oil & Gas Operator | Jan 1995 |
| 170 | Wolf Energy, Inc. | Midland, TX 79701 | Oil & Gas Operator | Oct 2021 |
| 171 | Yates, Harvey E. Company | Roswell, NM 88201 | Oil & Gas Operator | Dec 2002 |
| 172 | Zachry Oil And Gas Properties | Midland, TX 79708 | Oil & Gas Operator | Dec 2025 |