| 101 | Blackbeard Operating, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Mar 2025 |
| 102 | Blackwelder Oil | MC Camey, TX 79752 | Oil Operator | Mar 2025 |
| 103 | Blair, Jack N. | Midland, TX 79702 | Oil & Gas Operator | May 1996 |
| 104 | Blair, R. W. | FT Stockton, TX 79735 | Oil & Gas Operator | Dec 2009 |
| 105 | Bledsoe Partners, Inc. | Oklahoma City, OK 73120 | Oil & Gas Operator | Mar 1995 |
| 106 | Blue Ridge Resources, LLC | Midland, TX 79710 | Oil & Gas Operator | Mar 2025 |
| 107 | Bluegrass Energy Inc | Houston, TX 77057 | Oil & Gas Operator | Jan 2025 |
| 108 | Bluestone Natural Res. II, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Dec 2019 |
| 109 | Boaz Energy II Operating, LLC | Midland, TX 79705 | Oil & Gas Operator | Mar 2025 |
| 110 | Bob & Ted'S Operating | Lewisville, TX 75067 | Oil & Gas Operator | Apr 1993 |
| 111 | Bopco, L.P. | Midland, TX 79701 | Oil & Gas Operator | Mar 2025 |
| 112 | Boyd & McWilliams Operating, LLC | Midland, TX 79701 | Oil & Gas Operator | Mar 2025 |
| 113 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Dec 2024 |
| 114 | BP Prod. Corp. | Richardson, TX 75083 | Oil & Gas Operator | Mar 2025 |
| 115 | Brady, W. Production, Inc. | Midland, TX 79708 | Oil & Gas Operator | Mar 2025 |
| 116 | Brahman Oil & Gas, LLC | Houston, TX 77063 | Oil & Gas Operator | Mar 2025 |
| 117 | Brazos Petroleum, Inc. | Graham, TX 76450 | Oil & Gas Operator | Mar 2025 |
| 118 | Breck Operating Corp. | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2024 |
| 119 | Breitburn Operating LP | Houston, TX 77002 | Oil & Gas Operator | Mar 2025 |
| 120 | Brigham Resources Operating, LLC | Austin, TX 78730 | Oil & Gas Operator | Jun 2017 |
| 121 | Bright & Company | The Colony, TX 75056 | Oil & Gas Operator | May 2015 |
| 122 | Bristol Resources Corporation | Tulsa, OK 74170 | Oil & Gas Operator | Feb 2022 |
| 123 | Britanco, L.L.C. | Falls City, TX 78113 | Oil & Gas Operator | Mar 2025 |
| 124 | Brock, J. | Midland, TX 79702 | Oil & Gas Operator | Mar 2025 |
| 125 | Brothers Production Company Inc. | Midland, TX 79708 | Oil & Gas Operator | Mar 2025 |
| 126 | Brown Tom Inc | Dallas, TX 75240 | Oil & Gas Operator | Mar 2015 |
| 127 | Brown, George R. Partnership,The | Houston, TX 77002 | Oil & Gas Operator | May 2006 |
| 128 | Brown, H. L., Jr. | Midland, TX 79702 | Oil & Gas Operator | May 2002 |
| 129 | Brown, H.L. Operating, L.L.C. | Midland, TX 79702 | Oil & Gas Operator | Mar 2025 |
| 130 | Browning Oil Company, Inc. | Dallas, TX 75251 | Oil & Gas Operator | Mar 2025 |
| 131 | BRP Energy, LLC | San Angelo, TX 76902 | Oil & Gas Operator | Mar 2025 |
| 132 | Bta Oil Producers | Midland, TX 79701 | Oil & Gas Operator | Sep 2009 |
| 133 | Buckeye Energy Inc | Midland, TX 79702 | Oil & Gas Operator | Dec 2018 |
| 134 | Bugington Energy, LLC | Odessa, TX 79768 | Oil & Gas Operator | Apr 2018 |
| 135 | Bulldog Operating Company | Artesia, NM 88211 | Oil & Gas Operator | Jan 2014 |
| 136 | Burgundy Oil & Gas, Inc. | Midland, TX 79701 | Oil & Gas Operator | Mar 2025 |
| 137 | Burkholder, Terry L., Inc. | Pecos, TX 79772 | Oil & Gas Operator | Mar 2002 |
| 138 | Burleson Petroleum, Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2025 |
| 139 | Burleson, Lewis B. Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2010 |
| 140 | Burlington Res O&G Co-Permian | Midland, TX 79702 | Oil & Gas Operator | May 2002 |
| 141 | Burlington Resources Oil & Gas Company LP | Houston, TX 77252 | Oil & Gas Operator | Mar 2025 |
| 142 | Burlington Resources Oil And Gas Co. | Houston, TX 77210 | Oil & Gas Operator | Mar 2023 |
| 143 | Burnett Oil Co Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Mar 2025 |
| 144 | Bustamante Oil Company | Midland, TX 79710 | Oil & Gas Operator | Mar 2025 |
| 145 | Bustamante Resources LLC | Midland, TX 79710 | Oil & Gas Operator | Mar 2025 |
| 146 | Butler, C. D. | Grandfalls, TX 79742 | Oil & Gas Operator | Dec 2004 |
| 147 | Butler, Kevin O. & Assoc., Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2025 |
| 148 | C & G Petroleum, Inc. | Imperial, TX 79743 | Oil & Gas Operator | Aug 2004 |
| 149 | Cabal Energy Corporation | Midland, TX 79701 | Oil & Gas Operator | Mar 2025 |
| 150 | Caird Operating, LLC | Fort Worth, TX 76185 | Oil & Gas Operator | Mar 2025 |
| 151 | Cal-Tex Exploration & Production Company LLC | San Antonio, TX 78228 | Oil & Gas Operator | Mar 2025 |
| 152 | Callaway Production Co., Inc. | Midland, TX 79701 | Oil & Gas Operator | Jan 1996 |
| 153 | Cambrian Management LTD | McCaulley, TX 79534 | Oil & Gas Operator | Mar 2025 |
| 154 | Camden Resources, Inc. | Farmers BRNCH, TX 75234 | Oil & Gas Operator | Apr 2008 |
| 155 | Cameron Exploration, Inc. | Longview, TX 75604 | Oil & Gas Operator | Mar 2025 |
| 156 | Cannan, Morris | San Antonio, TX 78205 | Oil & Gas Operator | Mar 2025 |
| 157 | Canyon Exploration Co. | Amarillo, TX 79105 | Oil & Gas Operator | Dec 2024 |
| 158 | Capataz Operating Inc | Midland, TX 79702 | Oil & Gas Operator | Sep 2020 |
| 159 | Caprock Exploration, Inc. | Monahans, TX 79756 | Oil & Gas Operator | Feb 2024 |
| 160 | Cardinal Shares, Inc. | West Bloomfld, MI 48322 | Oil & Gas Operator | Mar 2004 |
| 161 | Cardwell Oil Corporation | Midland, TX 79710 | Oil & Gas Operator | Mar 2025 |
| 162 | Carlow Corp. | Midland, TX 79702 | Oil & Gas Operator | Dec 2024 |
| 163 | Caroil, LLC | Odessa, TX 79761 | Oil Operator | Mar 2025 |
| 164 | Castle Exploration Company Inc | Blue Bell, PA 19422 | Oil & Gas Operator | May 2018 |
| 165 | Celero Energy LP | Midland, TX 79701 | Oil & Gas Operator | May 2011 |
| 166 | Central Drilling Company, USA | Midland, TX 79710 | Oil & Gas Operator | May 2006 |
| 167 | Chambers Operating, Inc. | Westbrook, TX 79565 | Oil & Gas Operator | Mar 2006 |
| 168 | Chan West Oil Corporation | Irving, TX 75016 | Oil & Gas Operator | Mar 2025 |
| 169 | Chanc West, Inc. | Iraan, TX 79744 | Oil & Gas Operator | Mar 1995 |
| 170 | Chandler Oil & Gas, LLC | San Marcos, TX 78666 | Oil & Gas Operator | Mar 2025 |
| 171 | Chaparral (USA) Energy, Inc. | Oklahoma City, OK 73114 | Oil & Gas Operator | Sep 2002 |
| 172 | Chaparral Energy, L.L.C. | Oklahoma City, OK 73142 | Oil & Gas Operator | Mar 2025 |
| 173 | Chesapeake Operating, Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Nov 2024 |
| 174 | Chevron Midcontinent, L.P. | Midland, TX 79706 | Oil & Gas Operator | Mar 2025 |
| 175 | Chevron USA Inc | Midland, TX 79706 | Oil & Gas Operator | Mar 2025 |
| 176 | Chi Operating, Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2025 |
| 177 | Chisos Operating, Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2025 |
| 178 | Chisos, LTD | Houston, TX 77098 | Oil & Gas Operator | Mar 2025 |
| 179 | Cholla Petroleum Inc | Dallas, TX 75225 | Oil & Gas Operator | Mar 2025 |
| 180 | Cimarex Energy Co | Midland, TX 79706 | Oil & Gas Operator | Mar 2025 |
| 181 | Cimarex Energy Co Of Colorado | Midland, TX 79706 | Oil & Gas Operator | Mar 2025 |
| 182 | Circle-S Energy, LLC | McKinney, TX 75071 | Oil & Gas Operator | Mar 2025 |
| 183 | Citation Oil & Gas Corp. | Houston, TX 77269 | Oil & Gas Operator | Mar 2025 |
| 184 | Clark Oil Co. | Dallas, TX 75206 | Oil & Gas Operator | Mar 2025 |
| 185 | Clark, John M. | Midland, TX 79701 | Oil & Gas Operator | Dec 1993 |
| 186 | Clark, John M., Inc. | Midland, TX 79704 | Oil & Gas Operator | Mar 2025 |
| 187 | Clayton Petroleum Corporation | Midland, TX 79702 | Oil & Gas Operator | May 2004 |
| 188 | Clear Water Inc. | Midland, TX 79710 | Oil & Gas Operator | Mar 2025 |
| 189 | Cleveland Oil Company,L.L.C.,The | Midland, TX 79702 | Oil & Gas Operator | Sep 1999 |
| 190 | Clide Oil Corp. | Iraan, TX 79744 | Oil & Gas Operator | Nov 2015 |
| 191 | Cliffwood Production Co. | Houston, TX 77090 | Oil & Gas Operator | Aug 2013 |
| 192 | CLR Secondary Recovery, LLC | Wichita Falls, TX 76306 | Oil & Gas Operator | Mar 2025 |
| 193 | CM Oil Co. | FT Stockton, TX 79735 | Oil & Gas Operator | Mar 2025 |
| 194 | Coastal New Mexico MGMT LLC | Carlsbad, NM 88220 | Oil & Gas Operator | Mar 2025 |
| 195 | Coastal Oil & Gas Corporation | Houston, TX 77252 | Oil & Gas Operator | Dec 2009 |
| 196 | Cobalt Energy LLC | Wichita, KS 67202 | Oil & Gas Operator | Nov 2024 |
| 197 | Cobra Oil & Gas Corporation | Wichita Falls, TX 76307 | Oil & Gas Operator | Mar 2025 |
| 198 | Cochise Energy Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 199 | Cockrell Production Co., Inc. | Irving, TX 75014 | Oil & Gas Operator | Mar 2025 |
| 200 | Coda Energy, Inc. | Dallas, TX 75231 | Oil & Gas Operator | Aug 1998 |