| 101 | Baltic Royalty Corp. | Dallas, TX 75209 | Oil & Gas Operator | Mar 2008 |
| 102 | Bam Operating, Inc. | Eastland, TX 76448 | Oil & Gas Operator | Nov 2014 |
| 103 | Bam Permian Operating, LLC | Midland, TX 79707 | Oil & Gas Operator | Sep 2026 |
| 104 | Bam Production Company | Granbury, TX 76048 | Oil & Gas Operator | Aug 2003 |
| 105 | Bammert, H. L. | Weesatche, TX 77993 | Oil & Gas Operator | Sep 2013 |
| 106 | Banam Corporation | Midland, TX 79702 | Oil & Gas Operator | Nov 2013 |
| 107 | Bancroft Venture LLC | Kerens, TX 75144 | Oil Operator | Sep 2026 |
| 108 | Bandera Eagle Ford, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Sep 2026 |
| 109 | Bandera Exploration Company | Dallas, TX 75225 | Oil & Gas Operator | Jan 2017 |
| 110 | Bandera Oil & Gas Inc | Fulshear, TX 77441 | Oil & Gas Operator | Sep 2026 |
| 111 | Bandera Petroleum, Inc. | Abilene, TX 79606 | Oil & Gas Operator | Nov 2018 |
| 112 | Banding M R Inc | Gillette, WY 82717 | Oil & Gas Operator | Mar 2026 |
| 113 | Bankhead E & P LLC | Farmers BRNCH, TX 75234 | Oil & Gas Operator | Sep 2026 |
| 114 | Bankhead Operating Corp. | Wichita Falls, TX 76307 | Oil & Gas Operator | Sep 2026 |
| 115 | Banks, R. C. | Midland, TX 79702 | Oil & Gas Operator | Apr 2016 |
| 116 | Banlee Energy | Fort Worth, TX 76107 | Oil & Gas Operator | Dec 2010 |
| 117 | Banner Oil & Gas LLC | Oklahoma City, OK 73159 | Oil & Gas Operator | May 2026 |
| 118 | Banner Operating, LLC | Austin, TX 78735 | Oil & Gas Operator | Sep 2026 |
| 119 | Bannon Energy Inc | Houston, TX 77068 | Oil & Gas Operator | Jun 1998 |
| 120 | Banquet Production, LLC | Woodson, TX 76491 | Oil Operator | Sep 2026 |
| 121 | Bar D Energy, LLC | Lubbock, TX 79423 | Oil & Gas Operator | Sep 2026 |
| 122 | Bar H Production, Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Apr 1997 |
| 123 | Bar J-B Co., Inc. | Corsicana, TX 75151 | Oil Operator | Sep 2026 |
| 124 | Bar L Producers | Fritch, TX 79036 | Oil & Gas Operator | Feb 2025 |
| 125 | Bar Operating Production Co. | Abilene, TX 79604 | Oil & Gas Operator | Feb 2004 |
| 126 | Bar V Energy LLC | Poteet, TX 78065 | Oil Operator | Sep 2026 |
| 127 | Bar-Mac Investments Inc. | Brenham, TX 77834 | Oil & Gas Operator | Jun 2017 |
| 128 | Bara Corporation | Flower Mound, TX 75027 | Oil & Gas Operator | Apr 2004 |
| 129 | Barbee, Bill J. | Amarillo, TX 79101 | Oil & Gas Operator | Dec 1994 |
| 130 | Barbee, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Mar 2008 |
| 131 | Barbee, R.L. Operating, Inc. | Corpus Chrsti, TX 78427 | Oil & Gas Operator | Sep 2026 |
| 132 | Barber, B. S. | Kilgore, TX 75662 | Oil & Gas Operator | Nov 1998 |
| 133 | Barbour Energy Corporation | Oklahoma City, OK 73113 | Oil & Gas Operator | Sep 2026 |
| 134 | Barden/Bass O & G Expl. Co. Inc. | Terrell, TX 75160 | Oil & Gas Operator | Mar 2008 |
| 135 | Barger Petroleum Co. | Irving, TX 75061 | Oil & Gas Operator | Jan 2019 |
| 136 | Bargo Energy Company | Houston, TX 77010 | Oil & Gas Operator | May 2001 |
| 137 | Barj Oil Co. | Brownfield, TX 79316 | Oil & Gas Operator | Sep 2026 |
| 138 | Barker Production Co. | Shamrock, TX 79079 | Oil & Gas Operator | Mar 2010 |
| 139 | Barker Production Co., LP | San Angelo, TX 76904 | Oil & Gas Operator | Sep 2026 |
| 140 | Barker, Rodney | Shamrock, TX 79079 | Oil & Gas Operator | Aug 2012 |
| 141 | Barnes Exploration Co. | Nashville, TN 37209 | Oil & Gas Operator | Feb 1995 |
| 142 | Barnes Mineral Production, LTD. | Hallettsville, TX 77964 | Oil & Gas Operator | Sep 2026 |
| 143 | Barnes Oil & Gas LLC | Nashville, TN 37221 | Oil & Gas Operator | Jun 2017 |
| 144 | Barnes, Jerry B. | Gainesville, TX 76241 | Oil & Gas Operator | Oct 2006 |
| 145 | Barnes, K. A. | Somerset, TX 78069 | Oil & Gas Operator | Jan 2013 |
| 146 | Barnes, Larry Petroleum, Inc. | Englewood, CO 80112 | Oil & Gas Operator | Jul 1996 |
| 147 | Barnett Energy, Inc. | Graham, TX 76450 | Oil & Gas Operator | Sep 2026 |
| 148 | Barnett Oil Investments, Inc. | Hobbs, NM 88240 | Oil & Gas Operator | Mar 1999 |
| 149 | Barnett Operating, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Mar 1999 |
| 150 | Barnett, G. | Graham, TX 76450 | Oil Operator | Sep 2026 |
| 151 | Barnhart Co LLC | Houston, TX 77056 | Oil & Gas Operator | Sep 2026 |
| 152 | Barnhart Co. | Houston, TX 77056 | Oil & Gas Operator | Sep 2026 |
| 153 | Barnhill, Monte | Muenster, TX 76252 | Oil Operator | Sep 2026 |
| 154 | Baron Energy Inc. | San Marcos, TX 78666 | Oil & Gas Operator | Sep 2026 |
| 155 | Baron Energy LTD. | Midland, TX 79702 | Oil & Gas Operator | Oct 2005 |
| 156 | Baron Exploration Company | Edmond, OK 73034 | Oil & Gas Operator | Sep 2026 |
| 157 | Barrett Brothers Oil & Gas, Inc. | San Antonio, TX 78217 | Oil & Gas Operator | Dec 2020 |
| 158 | Barrett Brothers Oil And Gas | San Antonio, TX 78217 | Oil & Gas Operator | Mar 1995 |
| 159 | Barrett Oil Co. | White Oak, TX 75693 | Oil & Gas Operator | Dec 2024 |
| 160 | Barrett Resources Corporation | Denver, CO 80202 | Oil & Gas Operator | Aug 2003 |
| 161 | Barrier Resources,L.L.C. | Cedar Park, TX 78613 | Oil & Gas Operator | Aug 2003 |
| 162 | Barron Operating LLC | Midland, TX 79703 | Oil & Gas Operator | Jun 2011 |
| 163 | Barron Petroleum LLC | San Antonio, TX 78205 | Oil & Gas Operator | Sep 2026 |
| 164 | Barrow Petroleum LLC | Midland, TX 79710 | Oil & Gas Operator | Sep 2026 |
| 165 | Barrow-Shaver Resources Co. | Tyler, TX 75703 | Oil & Gas Operator | Sep 2026 |
| 166 | Barry Rock Oil Co. Inc. | Plain Dealing, LA 71064 | Oil & Gas Operator | Dec 2024 |
| 167 | Barton Oil Co. | Baird, TX 79504 | Oil Operator | Jun 2004 |
| 168 | Basa Resources, Inc. | Dallas, TX 75254 | Oil & Gas Operator | Sep 2026 |
| 169 | Basal Corporation | Cleburne, TX 76033 | Oil & Gas Operator | Sep 2026 |
| 170 | Base Petroleum | Houston, TX 77096 | Oil & Gas Operator | Jul 1994 |
| 171 | Baseline Oil & Gas Corp. | Houston, TX 77267 | Oil & Gas Operator | Oct 2010 |
| 172 | Basic Earth Science Systems, Inc. | Austin, TX 78714 | Oil & Gas Operator | Apr 2010 |
| 173 | Basic Energy Services, L.P. | Fort Worth, TX 76102 | Oil Operator | Sep 2026 |
| 174 | Basin Oil & Gas Operating, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Sep 2026 |
| 175 | Basin Operating Inc. | Albany, TX 76430 | Oil & Gas Operator | Sep 2026 |
| 176 | Basin Well Service Of Odessa,Inc | Odessa, TX 79768 | Oil & Gas Operator | Sep 2026 |
| 177 | Bass Enterprises Production Co | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2006 |
| 178 | Bass Operating Co., Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 1999 |
| 179 | Bass Petroleum | Austin, TX 78720 | Oil & Gas Operator | Aug 2004 |
| 180 | Bass Petroleum Inc | Austin, TX 78716 | Oil & Gas Operator | Sep 2026 |
| 181 | Bastrop Energy Group | San Antonio, TX 78231 | Oil & Gas Operator | Sep 2026 |
| 182 | Bataa Oil Inc | Arvada, CO 80005 | Oil & Gas Operator | Jun 2026 |
| 183 | Bateman'S Bay Exploration, Inc. | Oklahoma City, OK 73156 | Oil & Gas Operator | May 2026 |
| 184 | Batie, Patricia | Odessa, TX 79764 | Oil Operator | Nov 2024 |
| 185 | Batson Ent Ventures L.L.C. | Batson, TX 77519 | Oil Operator | Sep 2026 |
| 186 | Battlecat Oil & Gas, LLC | Houston, TX 77082 | Oil & Gas Operator | Jul 2017 |
| 187 | Battlecat Operating Company, LLC | Houston, TX 77082 | Oil & Gas Operator | Jul 2019 |
| 188 | Batton Oil & Gas, LLC | Spearman, TX 79081 | Oil & Gas Operator | Sep 2026 |
| 189 | Baxter, D. B. Inc. | Midland, TX 79708 | Oil & Gas Operator | Sep 2026 |
| 190 | Baxter, Kelly H. | Austin, TX 78767 | Oil & Gas Operator | Mar 2008 |
| 191 | Baxter, Kelly H. Oil And Gas Co. | Austin, TX 78767 | Oil & Gas Operator | Nov 2010 |
| 192 | Baxter, Murphy H. | Houston, TX 77002 | Oil & Gas Operator | Sep 1998 |
| 193 | Bay Rock Operating Company | San Antonio, TX 78212 | Oil & Gas Operator | Sep 2026 |
| 194 | Bay Tan Operating, LP | Odessa, TX 79765 | Oil & Gas Operator | Sep 2026 |
| 195 | Bay-Tech Operating Co., Inc. | Tyler, TX 75713 | Oil & Gas Operator | Mar 2024 |
| 196 | Bayer, Arthur | Muenster, TX 76252 | Oil & Gas Operator | Nov 2016 |
| 197 | Bayer, J.H. & Sons Inc | Gainesville, TX 76240 | Oil & Gas Operator | Mar 2008 |
| 198 | Baylor Operating, LLC | San Antonio, TX 78217 | Oil & Gas Operator | Sep 2026 |
| 199 | Bayou Bend Petroleum Corporation | Austin, TX 78734 | Oil & Gas Operator | Sep 2006 |
| 200 | Bayou Company, The | Refugio, TX 78377 | Oil & Gas Operator | Sep 2026 |