| 101 | Bootstrap Exploration, Inc. | Aledo, TX 76008 | Oil & Gas Operator | Jun 2021 |
| 102 | Borderline Operating Corp. | Graham, TX 76450 | Oil & Gas Operator | Aug 2025 |
| 103 | Borders, Delbert L. Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Feb 2019 |
| 104 | Boss Operating LLC | Graham, TX 76450 | Oil & Gas Operator | Aug 2025 |
| 105 | Bounty Production Company | San Antonio, TX 78209 | Oil & Gas Operator | Dec 2005 |
| 106 | Bowles Energy, Inc. | Longview, TX 75601 | Oil & Gas Operator | Aug 2025 |
| 107 | Boyd, Clyde Oil & Gas | Graham, TX 76450 | Oil & Gas Operator | Jan 2004 |
| 108 | Boyle, W. T. | Graham, TX 76450 | Oil & Gas Operator | Dec 2006 |
| 109 | Bra-De Oil & Gas Inc. | Montague, TX 76251 | Oil & Gas Operator | Jun 2016 |
| 110 | Bra-De Oil & Gas Operating, LLC | Montague, TX 76251 | Oil & Gas Operator | Aug 2025 |
| 111 | Bra-De Oil Co. | Bowie, TX 76230 | Oil & Gas Operator | Jun 2005 |
| 112 | Bradley, John W. Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Aug 2025 |
| 113 | Brammer Supply Inc | Gainesville, TX 76240 | Oil & Gas Operator | Nov 2014 |
| 114 | Breck Operating Corp. | Breckenridge, TX 76424 | Oil & Gas Operator | May 2025 |
| 115 | BRG Lone Star LTD. | Tulsa, OK 74136 | Oil & Gas Operator | Aug 2025 |
| 116 | Briar Energy Corporation | Graham, TX 76450 | Oil & Gas Operator | Aug 2025 |
| 117 | Briarcreek Operating LLC | Graham, TX 76450 | Oil Operator | Aug 2025 |
| 118 | Bridwell Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Aug 2025 |
| 119 | Brigadier Operating, LLC | Plano, TX 75024 | Oil & Gas Operator | Aug 2017 |
| 120 | Brightman Family Trust | Graham, TX 76450 | Oil & Gas Operator | Dec 2009 |
| 121 | Brightman, Tom | Graham, TX 76450 | Oil & Gas Operator | Aug 2025 |
| 122 | Brisco, W. M. | Jacksboro, TX 76458 | Oil & Gas Operator | Nov 2003 |
| 123 | Briscoe, Glenn D. | Jacksboro, TX 76458 | Oil & Gas Operator | Oct 2002 |
| 124 | Bristol Resources Corporation | Tulsa, OK 74170 | Oil & Gas Operator | Feb 2022 |
| 125 | Britton Operating, Inc. | Aledo, TX 76008 | Oil & Gas Operator | Aug 2025 |
| 126 | Brogdon, Gary | Graham, TX 76450 | Oil & Gas Operator | Dec 2009 |
| 127 | Brooks, E. B., Jr. | Dallas, TX 75206 | Oil & Gas Operator | May 2018 |
| 128 | Brothers Production Company Inc. | Midland, TX 79708 | Oil & Gas Operator | Aug 2025 |
| 129 | Brower Oil & Gas Co., Inc. | Graham, TX 76450 | Oil & Gas Operator | Aug 2025 |
| 130 | Brown, Frank | Graham, TX 76450 | Oil & Gas Operator | Apr 2003 |
| 131 | Bruce Operating Account | Graham, TX 76450 | Oil & Gas Operator | Aug 2003 |
| 132 | Brumbelow, Ronny L. | Wichita Falls, TX 76306 | Oil & Gas Operator | Oct 2004 |
| 133 | Bry-Tex Partners, LLC | Jacksboro, TX 76458 | Oil Operator | Aug 2025 |
| 134 | Bubenik, Ronnie, Inc. | Mineral Wells, TX 76067 | Oil & Gas Operator | Aug 2025 |
| 135 | Buck Production Co. | Jacksboro, TX 76458 | Oil & Gas Operator | Aug 2025 |
| 136 | Bulwark Oil & Gas, LLC | Graham, TX 76450 | Oil & Gas Operator | Aug 2025 |
| 137 | Burgess, W. E. | Fort Worth, TX 76147 | Oil & Gas Operator | Aug 2025 |
| 138 | Burk Royalty Co., LTD. | Wichita Falls, TX 76308 | Oil & Gas Operator | Aug 2025 |
| 139 | Burk Royalty Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Jan 2002 |
| 140 | Burns Operating | Wichita Falls, TX 76307 | Oil & Gas Operator | Sep 2002 |
| 141 | Byng Energy Group Inc | Enid, OK 73703 | Oil & Gas Operator | Aug 2025 |
| 142 | Caddo Corporation | Austin, TX 78731 | Oil & Gas Operator | Aug 2025 |
| 143 | Cal-Tex Fossil, L.L.C. | Graham, TX 76450 | Oil & Gas Operator | May 2020 |
| 144 | Cameron, Paul E., Jr., Inc. | Montgomery, TX 77356 | Oil & Gas Operator | May 2015 |
| 145 | Campana Petroleum Company | Midland, TX 79705 | Oil & Gas Operator | Aug 2025 |
| 146 | Campsey Minerals | Jacksboro, TX 76458 | Oil & Gas Operator | Aug 2025 |
| 147 | Can-Tex Energy Corp. | Dallas, TX 75231 | Oil & Gas Operator | Nov 2003 |
| 148 | Cannan, Morris | San Antonio, TX 78205 | Oil & Gas Operator | Aug 2025 |
| 149 | Caribou Operating Co. | Granbury, TX 76048 | Oil & Gas Operator | Mar 2010 |
| 150 | Caribou Operating, Inc. | Granbury, TX 76048 | Oil & Gas Operator | Aug 2025 |
| 151 | Carrizo Oil & Gas, Inc. | Houston, TX 77002 | Oil & Gas Operator | Aug 2025 |
| 152 | Carter Energy Corporation | Duncanville, TX 75138 | Oil & Gas Operator | Sep 2010 |
| 153 | Carter Exploration Company | Corpus Chrsti, TX 78413 | Oil & Gas Operator | Feb 2015 |
| 154 | Cary Oil & Gas, Inc | Decatur, TX 76234 | Oil & Gas Operator | Aug 2025 |
| 155 | Cascade Petroleum Corporation | Quitman, TX 75783 | Oil & Gas Operator | Mar 2002 |
| 156 | Case Resources, LLC | Graham, TX 76450 | Oil & Gas Operator | Aug 2025 |
| 157 | Castle Exploration Company Inc | Blue Bell, PA 19422 | Oil & Gas Operator | May 2018 |
| 158 | Catlin, Carl | Jacksboro, TX 76458 | Oil & Gas Operator | Mar 2008 |
| 159 | Catlin, Cecil | Iowa Park, TX 76367 | Oil & Gas Operator | Dec 1995 |
| 160 | Catlin, Cecil, Oil Co. | Iowa Park, TX 76367 | Oil & Gas Operator | Jun 2000 |
| 161 | CD Consulting & Operating Co. | Bridgeport, TX 76426 | Oil & Gas Operator | Aug 2025 |
| 162 | Central Basin Oil Inv. Inc. | Southlake, TX 76092 | Oil & Gas Operator | Aug 2025 |
| 163 | Century Petroleum, Inc. | Jacksboro, TX 76458 | Oil & Gas Operator | Aug 2025 |
| 164 | Chalker Energy Management II,LLC | Houston, TX 77002 | Oil & Gas Operator | Feb 2008 |
| 165 | Chalker Energy Management,LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2006 |
| 166 | Chance Oil Co., Inc. | Vernon, TX 76385 | Oil & Gas Operator | May 2025 |
| 167 | Charles D. Self Operating, LLC | Jacksboro, TX 76458 | Oil Operator | Aug 2025 |
| 168 | Chesapeake Operating LLC | Oklahoma City, OK 73154 | Oil & Gas Operator | Aug 2025 |
| 169 | Chesapeake Operating, Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Apr 2025 |
| 170 | Chevron USA Inc | Midland, TX 79706 | Oil & Gas Operator | Aug 2025 |
| 171 | Chief Oil & Gas LLC | Dallas, TX 75225 | Oil & Gas Operator | Feb 2022 |
| 172 | Chital Petroleum Corp. | Wichita Falls, TX 76308 | Oil & Gas Operator | Feb 2000 |
| 173 | Choice Exploration, Inc. | Irving, TX 75063 | Oil & Gas Operator | Aug 2025 |
| 174 | Cholla Petroleum Inc | Dallas, TX 75225 | Oil & Gas Operator | Aug 2025 |
| 175 | Christie, C. B., Jr. | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 2014 |
| 176 | Circle Ridge Production, Inc. | Graham, TX 76450 | Oil & Gas Operator | Aug 2025 |
| 177 | Citation Oil & Gas Corp. | Houston, TX 77269 | Oil & Gas Operator | Aug 2025 |
| 178 | Clay, Charles E. | Jacksboro, TX 76458 | Oil & Gas Operator | Sep 2010 |
| 179 | Clear Brooke Ranches, LLC | Fort Worth, TX 76179 | Oil & Gas Operator | Aug 2025 |
| 180 | Cleo Oil, Inc. | Olney, TX 76374 | Oil & Gas Operator | May 1997 |
| 181 | CLM Operating | Graham, TX 76450 | Oil & Gas Operator | Aug 2017 |
| 182 | Cobra Oil & Gas Corporation | Wichita Falls, TX 76307 | Oil & Gas Operator | Aug 2025 |
| 183 | Coleman Oil & Gas Corp. | Fort Worth, TX 76109 | Oil & Gas Operator | Aug 2025 |
| 184 | Coley, Thomas | Graham, TX 76450 | Oil & Gas Operator | Aug 2025 |
| 185 | Colotex Operating, LLC | Aurora, CO 80015 | Oil & Gas Operator | Aug 2025 |
| 186 | Comstock Energy, LLC | Wichita Falls, TX 76301 | Oil & Gas Operator | Aug 2025 |
| 187 | Concord Energy, Inc. | Glen Rose, TX 76043 | Oil & Gas Operator | Aug 2025 |
| 188 | Continental Export Corporation | Bowie, TX 76230 | Oil & Gas Operator | Sep 2013 |
| 189 | Cooke & Montague Oper. Co., Inc. | Flower Mound, TX 75028 | Oil & Gas Operator | Aug 2025 |
| 190 | Cooper Oil & Gas, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Aug 2025 |
| 191 | Corda Corporation | Wichita Falls, TX 76302 | Oil & Gas Operator | Aug 2025 |
| 192 | Corman, Jack | Dallas, TX 75231 | Oil & Gas Operator | May 2022 |
| 193 | Corpening, Joe F. | Bowie, TX 76230 | Oil & Gas Operator | Oct 2013 |
| 194 | Cottonwood Petroleum Co. | Abilene, TX 79603 | Oil & Gas Operator | Jun 2009 |
| 195 | Cottonwood Resources, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Aug 2003 |
| 196 | Covenant Oil Company | Houma, LA 70360 | Oil & Gas Operator | Dec 2015 |
| 197 | Covenant Operating, LLC | Wichita Falls, TX 76308 | Oil Operator | Aug 2025 |
| 198 | Cox Operating Co. | Wichita Falls, TX 76310 | Oil & Gas Operator | Jun 2000 |
| 199 | Cox, Lee Investments Inc. | Mineral Wells, TX 76067 | Oil & Gas Operator | Aug 2025 |
| 200 | CP Exploration TX Operating LLC | Jacksboro, TX 76458 | Oil & Gas Operator | Apr 2017 |