| 101 | McDonald Production | Lubbock, TX 79408 | Oil & Gas Operator | Mar 2003 |
| 102 | McDonald Production, LLC | Lubbock, TX 79408 | Oil Operator | Jul 2025 |
| 103 | McDonnold Operating, Inc. | Midland, TX 79701 | Oil & Gas Operator | Jul 2025 |
| 104 | Medders Oil Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Jul 2025 |
| 105 | Melton, Joe, DRLG. Co., Inc. | Midland, TX 79704 | Oil & Gas Operator | Dec 2004 |
| 106 | Merit Energy Company | Dallas, TX 75240 | Oil & Gas Operator | Jul 2025 |
| 107 | Mewbourne Oil Company | Tyler, TX 75711 | Oil & Gas Operator | Jul 2025 |
| 108 | Mission Resources Corporation | Houston, TX 77002 | Oil & Gas Operator | Mar 2008 |
| 109 | Mobil Producing TX. & N.M. Inc. | Spring, TX 77389 | Oil & Gas Operator | Jul 2025 |
| 110 | Munn, W. H. Operating Company | Midland, TX 79702 | Oil & Gas Operator | Sep 2002 |
| 111 | Nearburg Producing Company | Dallas, TX 75380 | Oil & Gas Operator | Jul 2025 |
| 112 | North American Royalties, Inc. | Chattanooga, TN 37408 | Oil & Gas Operator | Oct 2001 |
| 113 | Occidental Energy Marketing, Inc. | Houston, TX 77227 | Gas Operator | Sep 2015 |
| 114 | Occidental Permian LTD. | Houston, TX 77046 | Oil & Gas Operator | Jul 2025 |
| 115 | Oil Management Corporation | Dallas, TX 75206 | Oil & Gas Operator | Apr 2022 |
| 116 | Oilfield Management, Inc. (A) | Midland, TX 79702 | Oil & Gas Operator | Jul 2025 |
| 117 | Oklahoma Operating Company | Midland, TX 79708 | Oil & Gas Operator | Jul 2025 |
| 118 | Old Cedron, L.L.C. | Lubbock, TX 79410 | Oil & Gas Operator | May 2004 |
| 119 | Olsen Energy Inc. | Boerne, TX 78006 | Oil & Gas Operator | Jul 2025 |
| 120 | Ozark Exploration, Inc. | Dallas, TX 75205 | Oil & Gas Operator | Jul 2025 |
| 121 | Panhandle Oil & Gas Inc | Oklahoma City, OK 73112-5688 | Oil & Gas Operator | May 2007 |
| 122 | Panther Creek Resources, LLC | Denver, CO 80202 | Oil & Gas Operator | May 2012 |
| 123 | Partee Drilling Inc. | Big Spring, TX 79721 | Oil & Gas Operator | Jul 2025 |
| 124 | Peccary Corporation | Lubbock, TX 79453 | Oil & Gas Operator | Aug 2003 |
| 125 | Peden Energy | Lubbock, TX 79424 | Oil & Gas Operator | Dec 2004 |
| 126 | Peden Energy, Inc. | Wolfforth, TX 79382 | Oil & Gas Operator | Jul 2025 |
| 127 | Pennzenergy Exp. & Prod., L.L.C. | Houston, TX 77210 | Oil & Gas Operator | Mar 2000 |
| 128 | Pennzoil Exploration & Production Co. | Carthage, TX 75633 | Oil & Gas Operator | Mar 2008 |
| 129 | Pennzoil Petroleum Company | Houston, TX 77252 | Oil & Gas Operator | Nov 1999 |
| 130 | Penroc Oil Corp. | Hobbs, NM 88241 | Oil & Gas Operator | May 2025 |
| 131 | Petro-West Corporation | Lubbock, TX 79404 | Oil & Gas Operator | Oct 2001 |
| 132 | Pipeline Management, Inc. | Lubbock, TX 79401 | Oil & Gas Operator | Dec 2002 |
| 133 | Plains Marketing, LP | Cushing, OK 74023 | Oil Operator | Jan 2012 |
| 134 | Plateau Energy, LLC | Smyer, TX 79367 | Oil & Gas Operator | Dec 2023 |
| 135 | Poor Boy Operating Co. | Lubbock, TX 79403 | Oil Operator | Jan 2022 |
| 136 | Praxis Energy, LLC | Midland, TX 79705 | Oil Operator | Apr 2002 |
| 137 | Prospctv Invstmnt & TRDG Co, LTD | Tulsa, OK 74170 | Oil & Gas Operator | May 2001 |
| 138 | PSP Operating, Inc. | Lubbock, TX 79413 | Oil & Gas Operator | Jun 1999 |
| 139 | Rasmussen, Tom | San Angelo, TX 76904 | Oil & Gas Operator | Jul 2025 |
| 140 | Raw Oil & Gas, Inc. | Lubbock, TX 79401 | Oil & Gas Operator | Jul 2025 |
| 141 | Rio Petroleum, Inc. | Amarillo, TX 79102 | Oil & Gas Operator | Jul 2025 |
| 142 | RMB Operating LLC | Lubbock, TX 79493 | Oil & Gas Operator | Jul 2025 |
| 143 | Robertson Resources, Inc. | Horseshoe Bay, TX 78657 | Oil & Gas Operator | Jul 2025 |
| 144 | Roca Operating, Inc. | Midland, TX 79702 | Oil & Gas Operator | Jul 2025 |
| 145 | Roca Resource Company, Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 146 | Sabinal Energy Operating, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Jul 2025 |
| 147 | Samedan Oil Corporation | Houston, TX 77067 | Oil & Gas Operator | Dec 2019 |
| 148 | Santa Fe Energy Resources, Inc. | Houston, TX 77024 | Oil & Gas Operator | Mar 2008 |
| 149 | Santa Fe Snyder Corporation | Houston, TX 77024 | Oil & Gas Operator | Oct 2000 |
| 150 | Santo Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Jul 2025 |
| 151 | Scythian, LTD. | Midland, TX 79701 | Oil & Gas Operator | Dec 2020 |
| 152 | Seaboard Operating Co. | Midland, TX 79710 | Oil & Gas Operator | Jul 2025 |
| 153 | Sheridan Production Company, LLC | Houston, TX 77056 | Oil & Gas Operator | Apr 2025 |
| 154 | Smith Pipe Of Abilene | Abilene, TX 79608 | Oil & Gas Operator | Jul 2025 |
| 155 | Socorro Exploration, Inc. | Lubbock, TX 79464 | Oil & Gas Operator | Jul 2025 |
| 156 | SSC, Inc. | Lubbock, TX 79408 | Oil & Gas Operator | Jul 2025 |
| 157 | Summit Exploration, L.L.C. | Tulsa, OK 74119 | Oil & Gas Operator | Mar 2008 |
| 158 | Suncoast Technical Services Inc | Dallas, TX 75251 | Oil & Gas Operator | Jul 2025 |
| 159 | Sundown Energy LP | Dallas, TX 75248 | Oil & Gas Operator | Jul 2025 |
| 160 | Tamarack Petroleum Company, Inc. | Midland, TX 79701 | Oil & Gas Operator | Jul 2025 |
| 161 | TDC Engineering, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Jul 2025 |
| 162 | Texas Energy Sources, Inc. | Midland, TX 79708 | Oil & Gas Operator | Mar 2008 |
| 163 | Texland Petroleum Inc. | Fort Worth, TX 76102 | Oil & Gas Operator | Mar 2003 |
| 164 | Texland Petroleum, L.P. | Fort Worth, TX 76107 | Oil & Gas Operator | Jul 2025 |
| 165 | Texland-Rector & Schumacher | Fort Worth, TX 76102 | Oil & Gas Operator | Nov 2000 |
| 166 | Texon Oil Company, Inc. | Midland, TX 79710 | Oil & Gas Operator | Apr 2023 |
| 167 | Thomas Resources Corporation | Monahans, TX 79756 | Oil Operator | Mar 2008 |
| 168 | Threeway Drilling Company | Midland, TX 79701 | Oil & Gas Operator | Jul 2025 |
| 169 | Threshold Development Company | Fort Worth, TX 76109 | Oil & Gas Operator | Aug 2016 |
| 170 | Tonto Petroleum Corporation | Post, TX 79356 | Oil & Gas Operator | Jan 2007 |
| 171 | Topat Oil Corporation | Midland, TX 79701 | Oil & Gas Operator | Sep 2017 |
| 172 | Trinity Bay Oil & Gas, Inc. | Lubbock, TX 79416 | Oil & Gas Operator | Jul 2025 |
| 173 | Union Oil Co Of California | Midland, TX 79706 | Oil & Gas Operator | Jan 2022 |
| 174 | United Company | Lubbock, TX 79408 | Oil & Gas Operator | Jun 1995 |
| 175 | Urban Oil & Gas Group, LLC | Plano, TX 75074 | Oil & Gas Operator | Jul 2025 |
| 176 | V-F Petroleum Inc. | Midland, TX 79702 | Oil & Gas Operator | Jul 2025 |
| 177 | Viola Production Inc | Dallas, TX 75251 | Oil & Gas Operator | Jul 2025 |
| 178 | Walkabout Operating, LLC | Lubbock, TX 79424 | Oil & Gas Operator | Jul 2025 |
| 179 | Western Reserves Oil Co Inc | Midland, TX 79705 | Oil & Gas Operator | Oct 2020 |
| 180 | Winn Operating, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Jul 2025 |
| 181 | WTG Exploration | Midland, TX 79705 | Oil & Gas Operator | Jul 2025 |
| 182 | Xeric Oil & Gas Company | Midland, TX 79702 | Oil & Gas Operator | Jul 1997 |
| 183 | Xeric Oil & Gas Corporation | Midland, TX 79702 | Oil & Gas Operator | Apr 2014 |
| 184 | Yates Drilling Company | Artesia, NM 88210 | Oil & Gas Operator | Dec 2021 |
| 185 | Yates, Harvey E. Company | Roswell, NM 88201 | Oil & Gas Operator | Dec 2002 |
| 186 | Young Marshall R Oil Co | Fort Worth, TX 76107 | Oil & Gas Operator | Mar 2011 |