| 101 | Bopco, L.P. | Midland, TX 79701 | Oil & Gas Operator | May 2025 |
| 102 | Boyd & McWilliams Energy Group | Midland, TX 79701 | Oil & Gas Operator | May 2025 |
| 103 | Boyd, D. K. Oil And Gas Co.,Inc. | Midland, TX 79703 | Oil & Gas Operator | May 2025 |
| 104 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Feb 2025 |
| 105 | BP Prod. Corp. | Richardson, TX 75083 | Oil & Gas Operator | May 2025 |
| 106 | Brady, W. Production, Inc. | Midland, TX 79708 | Oil & Gas Operator | May 2025 |
| 107 | Brahaney Drilling Co. | Midland, TX 79702 | Oil & Gas Operator | Feb 2014 |
| 108 | Brahaney Drilling Company, LTD. | Midland, TX 79702 | Oil & Gas Operator | Oct 2015 |
| 109 | Brammer Engineering, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | May 2025 |
| 110 | Breck Operating Corp. | Breckenridge, TX 76424 | Oil & Gas Operator | Feb 2025 |
| 111 | Breitburn Operating LP | Houston, TX 77002 | Oil & Gas Operator | May 2025 |
| 112 | Bridge Oil Company LP | Midland, TX 79702 | Oil & Gas Operator | May 1999 |
| 113 | Bridwell Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | May 2025 |
| 114 | Bright & Company | The Colony, TX 75056 | Oil & Gas Operator | May 2015 |
| 115 | Bristol Resources Corporation | Tulsa, OK 74170 | Oil & Gas Operator | Feb 2022 |
| 116 | Broadway Operating Company Inc. | Lubbock, TX 79401 | Oil & Gas Operator | Aug 2002 |
| 117 | Brock, J. | Midland, TX 79702 | Oil & Gas Operator | May 2025 |
| 118 | Brothers Production Company Inc. | Midland, TX 79708 | Oil & Gas Operator | May 2025 |
| 119 | Brown Tom Inc | Dallas, TX 75240 | Oil & Gas Operator | Mar 2015 |
| 120 | Brown, George R. Partnership,The | Houston, TX 77002 | Oil & Gas Operator | May 2006 |
| 121 | Brown, H. L., Jr. | Midland, TX 79702 | Oil & Gas Operator | May 2002 |
| 122 | Brown, H.L. Operating, L.L.C. | Midland, TX 79702 | Oil & Gas Operator | May 2025 |
| 123 | Brown, L. Z. | Andrews, TX 79714 | Gas Operator | Jan 1997 |
| 124 | Browning Exploration, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Apr 1994 |
| 125 | Browning Oil Company, Inc. | Dallas, TX 75251 | Oil & Gas Operator | May 2025 |
| 126 | Bta Oil Producers | Midland, TX 79701 | Oil & Gas Operator | Sep 2009 |
| 127 | Bta Oil Producers, LLC | Midland, TX 79701 | Oil & Gas Operator | May 2025 |
| 128 | Bulldog Operating Company | Artesia, NM 88211 | Oil & Gas Operator | Jan 2014 |
| 129 | Burger, F.W. Inc. | Abilene, TX 79604 | Oil & Gas Operator | Mar 2008 |
| 130 | Burgundy Oil & Gas, Inc. | Midland, TX 79701 | Oil & Gas Operator | May 2025 |
| 131 | Burk Royalty Co., LTD. | Wichita Falls, TX 76308 | Oil & Gas Operator | May 2025 |
| 132 | Burleson Petroleum, Inc. | Midland, TX 79702 | Oil & Gas Operator | May 2025 |
| 133 | Burleson, Lewis B. Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2010 |
| 134 | Burlington Res O & G Co-Midland | Houston, TX 77252 | Oil & Gas Operator | Mar 2020 |
| 135 | Burlington Res O&G Co-Permian | Midland, TX 79702 | Oil & Gas Operator | May 2002 |
| 136 | Burlington Resources Oil And Gas Co. | Houston, TX 77210 | Oil & Gas Operator | Mar 2023 |
| 137 | Burnett Oil Co Inc | Fort Worth, TX 76102 | Oil & Gas Operator | May 2025 |
| 138 | Burns, Bill C. | Midland, TX 79701 | Oil & Gas Operator | Dec 1997 |
| 139 | Bustamante Oil Company | Midland, TX 79710 | Oil & Gas Operator | May 2025 |
| 140 | Bustamante Resources LLC | Midland, TX 79710 | Oil & Gas Operator | May 2025 |
| 141 | Butler, Kevin O. & Assoc., Inc. | Midland, TX 79702 | Oil & Gas Operator | May 2025 |
| 142 | BVX Operating, Inc. | Boerne, TX 78006 | Oil & Gas Operator | May 2025 |
| 143 | Byrd Operating Company | Midland, TX 79702 | Oil & Gas Operator | May 2025 |
| 144 | Callaway Production Co., Inc. | Midland, TX 79701 | Oil & Gas Operator | Jan 1996 |
| 145 | Callon Petroleum Operating Co | Houston, TX 77042 | Oil & Gas Operator | Jul 2024 |
| 146 | Cambrian Management LTD | McCaulley, TX 79534 | Oil & Gas Operator | May 2025 |
| 147 | Capataz Operating Inc | Midland, TX 79702 | Oil & Gas Operator | Sep 2020 |
| 148 | Caprock Exploration, Inc. | Monahans, TX 79756 | Oil & Gas Operator | May 2025 |
| 149 | Caprock Operating, Inc. | Midland, TX 79708 | Oil & Gas Operator | Dec 2007 |
| 150 | Capstone Natural Res II, LLC | Tulsa, OK 74170 | Oil & Gas Operator | Feb 2020 |
| 151 | Capstone Natural Resources, LLC | Tulsa, OK 74136 | Oil & Gas Operator | May 2015 |
| 152 | Capturepoint LLC | Allen, TX 75013 | Oil & Gas Operator | May 2025 |
| 153 | Cardwell Oil Corporation | Midland, TX 79710 | Oil & Gas Operator | May 2025 |
| 154 | Carken LLC | Andrews, TX 79714 | Oil Operator | May 2025 |
| 155 | Carruth Oil & Gas, LLC | Andrews, TX 79714 | Oil & Gas Operator | May 2025 |
| 156 | Carruth, Chris | Andrews, TX 79714 | Oil & Gas Operator | Nov 2017 |
| 157 | Cass Energy Corp | Dallas, TX 75225 | Oil & Gas Operator | Aug 2003 |
| 158 | Celero Energy LP | Midland, TX 79701 | Oil & Gas Operator | May 2011 |
| 159 | Centerfire Resources | Springerville, AZ 85938 | Oil & Gas Operator | May 2025 |
| 160 | Centurion Gas Corporation | Midland, TX 79702 | Oil & Gas Operator | Jul 2009 |
| 161 | Chaparral (USA) Energy, Inc. | Oklahoma City, OK 73114 | Oil & Gas Operator | Sep 2002 |
| 162 | Chaparral Energy, L.L.C. | Oklahoma City, OK 73142 | Oil & Gas Operator | May 2025 |
| 163 | Chemily Management Company | Cypress, TX 77429 | Oil & Gas Operator | Apr 2023 |
| 164 | Chesapeake Operating, Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Jan 2025 |
| 165 | Chevron Midcontinent, L.P. | Midland, TX 79706 | Oil & Gas Operator | May 2025 |
| 166 | Chevron USA Inc | Midland, TX 79706 | Oil & Gas Operator | May 2025 |
| 167 | Chi Operating, Inc. | Midland, TX 79702 | Oil & Gas Operator | May 2025 |
| 168 | Cholla Petroleum Inc | Dallas, TX 75225 | Oil & Gas Operator | May 2025 |
| 169 | Cimarex Energy Co | Midland, TX 79706 | Oil & Gas Operator | May 2025 |
| 170 | Cimarex Energy Co. Of Colorado | Midland, TX 79706 | Oil & Gas Operator | May 2025 |
| 171 | Circle-S Energy, LLC | McKinney, TX 75071 | Oil & Gas Operator | May 2025 |
| 172 | Citation Oil & Gas Corp. | Houston, TX 77269 | Oil & Gas Operator | May 2025 |
| 173 | Clearfork Operating LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Aug 2011 |
| 174 | Clearfork Production, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Nov 2018 |
| 175 | CLR Secondary Recovery, LLC | Wichita Falls, TX 76306 | Oil & Gas Operator | May 2025 |
| 176 | CML Exploration, LLC | Austin, TX 78746 | Oil & Gas Operator | May 2025 |
| 177 | Coastal Management Corporation | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 178 | Coastal Oil & Gas Corporation | Houston, TX 77252 | Oil & Gas Operator | Dec 2009 |
| 179 | Cobalt Operating, LLC | Midland, TX 79710 | Oil & Gas Operator | Feb 2025 |
| 180 | Coda Energy, Inc. | Dallas, TX 75231 | Oil & Gas Operator | Aug 1998 |
| 181 | COG Operating LLC | Midland, TX 79701 | Oil & Gas Operator | May 2025 |
| 182 | Colgate Operating, LLC | Midland, TX 79701 | Oil & Gas Operator | Apr 2024 |
| 183 | Collins & Ware, Inc. | Midland, TX 79701 | Oil & Gas Operator | Aug 2003 |
| 184 | Colt Oil Company | Andrews, TX 79714 | Oil & Gas Operator | Feb 1996 |
| 185 | Comal Operating LLC | San Antonio, TX 78217 | Oil & Gas Operator | May 2025 |
| 186 | Compostella Oil Company | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 187 | Concho Oilfield Serv & Oper Co. | Eden, TX 76837 | Oil & Gas Operator | May 2025 |
| 188 | Concho Resources Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Mar 2004 |
| 189 | Cone & Petree Oil & Gas Exp. Inc | Lubbock, TX 79453 | Oil & Gas Operator | May 2024 |
| 190 | Conoco Inc. | Houston, TX 77252 | Oil & Gas Operator | Mar 2015 |
| 191 | ConocoPhillips Company | Midland, TX 79701 | Oil & Gas Operator | May 2025 |
| 192 | Conquest Oil Company | Big Spring, TX 79721 | Oil & Gas Operator | Aug 2024 |
| 193 | Contango Resources LLC | Andrews, TX 79714 | Oil & Gas Operator | May 2025 |
| 194 | Contango Resources, Inc. | Houston, TX 77002 | Oil & Gas Operator | Apr 2025 |
| 195 | Continental Resources, Inc. | Oklahoma City, OK 73126 | Oil & Gas Operator | May 2025 |
| 196 | Cooper Oil & Gas, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | May 2025 |
| 197 | Copper Ridge Resources LLC | Midland, TX 79710 | Oil Operator | Feb 2025 |
| 198 | Core E & P Corp. | Victoria, TX 77902 | Oil & Gas Operator | May 2025 |
| 199 | Corona Exploration, Inc. | Midland, TX 79702 | Oil & Gas Operator | May 2025 |
| 200 | Corona Operating, LLC | Midland, TX 79702 | Oil Operator | May 2025 |