| 4101 | Burkard Petroleum Company | Houston, TX 77056 | Oil & Gas Operator | May 2003 |
| 4102 | Burke Michael | Coolsville, OH 45723 | Oil & Gas Operator | Dec 2025 |
| 4103 | Burke, Harry Petroleum | Houston, TX 77080 | Oil & Gas Operator | Nov 2024 |
| 4104 | Burkett Drilling | Sunray, TX 79086 | Oil Operator | Sep 2026 |
| 4105 | Burkett, J. D. | Archer City, TX 76351 | Oil & Gas Operator | Mar 1994 |
| 4106 | Burkhart Petroleum Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Feb 2002 |
| 4107 | Burkholder, Terry L., Inc. | Pecos, TX 79772 | Oil & Gas Operator | Mar 2002 |
| 4108 | Burkland William S | Ligonier, PA 15658-0467 | Oil & Gas Operator | Dec 2010 |
| 4109 | Burleson Oil Company | Burkburnett, TX 76354 | Oil Operator | Sep 2026 |
| 4110 | Burleson Petroleum, Inc. | Midland, TX 79702 | Oil & Gas Operator | Sep 2026 |
| 4111 | Burleson, Jackie A. | Wichita Falls, TX 76307 | Oil & Gas Operator | Feb 2003 |
| 4112 | Burleson, Lewis B. Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2010 |
| 4113 | Burlingame Oil, LLC | Olean, NY 14760 | Oil & Gas Operator | Dec 2025 |
| 4114 | Burlington Oil Company | Ponca City, OK 74602-1304 | Oil & Gas Operator | May 2007 |
| 4115 | Burlington Res O & G Co-McCamey | Midland, TX 79702 | Oil Operator | Mar 2002 |
| 4116 | Burlington Res O & G Co-Midland | Houston, TX 77252 | Oil & Gas Operator | Mar 2020 |
| 4117 | Burlington Res O&G Co-Permian | Midland, TX 79702 | Oil & Gas Operator | May 2002 |
| 4118 | Burlington Res Offshore Inc | | Oil & Gas Operator | Oct 2002 |
| 4119 | Burlington Res Oil & Gas Co | | Oil & Gas Operator | Dec 2000 |
| 4120 | Burlington Res Oil & Gas LP | | Oil & Gas Operator | Mar 2013 |
| 4121 | Burlington Resources O&G | Midland, TX 79710-1810 | Oil & Gas Operator | Mar 1997 |
| 4122 | Burlington Resources Oil & Gas Company L | Gillette, WY 82718 | Oil & Gas Operator | Jan 2022 |
| 4123 | Burlington Resources Oil & Gas Company LP | Houston, TX 77252 | Oil & Gas Operator | Sep 2026 |
| 4124 | Burlington Resources Oil And Gas Co. | Houston, TX 77210 | Oil & Gas Operator | Mar 2023 |
| 4125 | Burmaster, Gary | Sheridan, NY 14135 | Gas Operator | Dec 2025 |
| 4126 | Burness, William Steele Jr | Glasgow, KY 42142 | Oil Operator | Dec 2024 |
| 4127 | Burnett Corp. | Amarillo, TX 79105 | Oil & Gas Operator | May 1998 |
| 4128 | Burnett Corporat | | Oil & Gas Operator | Oct 1993 |
| 4129 | Burnett Energy Inc. | | Oil & Gas Operator | Jun 2026 |
| 4130 | Burnett Oil Co Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Sep 2026 |
| 4131 | Burnham & Browning DRLG Co. | | Oil Operator | Oct 1990 |
| 4132 | Burns Eugene | Davis, OK 73030-3112 | Oil Operator | Mar 2006 |
| 4133 | Burns Oil & Gas Expl. | | Oil & Gas Operator | Jan 1985 |
| 4134 | Burns Operating | Wichita Falls, TX 76307 | Oil & Gas Operator | Sep 2002 |
| 4135 | Burns Operating LLC | Wichita Falls, TX 76307 | Oil & Gas Operator | Jul 2009 |
| 4136 | Burns Production Corporation | Midland, TX 79701 | Oil & Gas Operator | Jul 2008 |
| 4137 | Burns Willard & Frances | Corning, OH 43730 | Oil & Gas Operator | Dec 2020 |
| 4138 | Burns WM J | | Oil Operator | Jun 1994 |
| 4139 | Burns, Bill C. | Midland, TX 79701 | Oil & Gas Operator | Dec 1997 |
| 4140 | Burns, Gene Oil & Gas | Odessa, TX 79765 | Oil & Gas Operator | Dec 2020 |
| 4141 | Burns, P. C. Oil Producers Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 2000 |
| 4142 | Burnsed Oil Co., Inc. | | Oil & Gas Operator | Dec 2025 |
| 4143 | Burr Oil & Gas | Farmington, NM 87499 | Oil & Gas Operator | Feb 2000 |
| 4144 | Burr Oil & Gas Inc | Farmington, NM 87499 | Oil & Gas Operator | Oct 2019 |
| 4145 | Burrill Oil | | Oil Operator | Aug 1990 |
| 4146 | Burris Energy LLC | Burlington, KS 66839 | Oil & Gas Operator | Sep 2016 |
| 4147 | Burris Ronald/Si | | Oil Operator | Jun 1992 |
| 4148 | Burris, J. R. | Manhattan, KS 66502 | Oil Operator | Dec 2019 |
| 4149 | Burrite Operating, LLC | | Oil Operator | Dec 2024 |
| 4150 | Burro Bluff Corporation | Houston, TX 77024 | Oil & Gas Operator | Sep 2026 |
| 4151 | Burrows Alfred | Copan, OK 74022 | Oil & Gas Operator | May 2021 |
| 4152 | Burrows, Dewey | | Oil & Gas Operator | Jun 2026 |
| 4153 | Burt Esther M | Sperry, OK 74073 | Oil Operator | May 2026 |
| 4154 | Burt James & Charles Maybee | Sperry, OK 74073-8001 | Oil & Gas Operator | Nov 2014 |
| 4155 | Burtco | Lubbock, TX 79407 | Oil & Gas Operator | Sep 2026 |
| 4156 | Burton Oil Produ | | Oil Operator | Jan 1985 |
| 4157 | Burton Oil Properties | Ratliff City, OK 73081 | Oil & Gas Operator | Apr 2026 |
| 4158 | Burton Services, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Sep 2026 |
| 4159 | Burton, V.C. Oil & Gas, Inc. | Portland, TX 78374 | Oil & Gas Operator | Sep 2016 |
| 4160 | Burton-Sutton Oil Co., Inc. | | Oil & Gas Operator | Apr 1988 |
| 4161 | Burton/Hawks Inc | Casper, WY 82602 | Oil & Gas Operator | Sep 1993 |
| 4162 | Busey Naman | Elmore City, OK 73433-9583 | Oil & Gas Operator | Apr 2026 |
| 4163 | Bush Operating | Archer City, TX 76351 | Oil & Gas Operator | Sep 2026 |
| 4164 | Bush, Mark A. Oil And Gas Inc. | Houston, TX 77057 | Oil & Gas Operator | Sep 2026 |
| 4165 | Bushwood Leasing, LLC | | Oil Operator | Dec 2024 |
| 4166 | Buss, Timothy A. & Kimberly A. | Westfield, NY 14787 | Gas Operator | Dec 2025 |
| 4167 | Bussey, Joe F. | Graham, TX 76450 | Oil & Gas Operator | Mar 2008 |
| 4168 | Bustamante Oil Company | Midland, TX 79710 | Oil & Gas Operator | Sep 2026 |
| 4169 | Bustamante Resources LLC | Midland, TX 79710 | Oil & Gas Operator | Sep 2026 |
| 4170 | Busted Knuckle Oil & Gas LLC | Jefferson, OH 44047 | Oil & Gas Operator | Dec 2025 |
| 4171 | Butcher Energy Corp | Newark, OH 43055 | Oil & Gas Operator | Dec 2014 |
| 4172 | Butkin Oil Company | Duncan, OK 73534-2090 | Oil & Gas Operator | Sep 2021 |
| 4173 | Butkin Oil Company LLC | Duncan, OK 73533 | Oil & Gas Operator | Mar 2023 |
| 4174 | Butler & Harbison | Olney, TX 76374 | Oil & Gas Operator | Oct 2005 |
| 4175 | Butler & Haseloff | Vernon, TX 76384 | Oil Operator | Jul 1993 |
| 4176 | Butler B F | Hobart, OK 73651 | Oil Operator | Apr 2014 |
| 4177 | Butler County Flood, Inc | Santa Monica, CA 90409 | Oil Operator | Dec 2015 |
| 4178 | Butler Larry | Bladensburg, OH 43005 | Oil & Gas Operator | Dec 2019 |
| 4179 | Butler Oil Co | Casper, WY 82602 | Oil & Gas Operator | Dec 1996 |
| 4180 | Butler Petroleum Corp | Norman, OK 73069-7111 | Oil & Gas Operator | Dec 1998 |
| 4181 | Butler Petroleum LLC | Van Alstyne, TX 75495 | Oil Operator | May 2020 |
| 4182 | Butler, C. D. | Grandfalls, TX 79742 | Oil & Gas Operator | Dec 2004 |
| 4183 | Butler, Cecil D | | Oil & Gas Operator | Jun 2026 |
| 4184 | Butler, Harold F. | Independence, KS 67301 | Oil Operator | Sep 2002 |
| 4185 | Butler, Kevin O. | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 4186 | Butler, Kevin O. & Assoc., Inc. | Midland, TX 79702 | Oil & Gas Operator | Sep 2026 |
| 4187 | Butte Oil And Gas Inc | Oklahoma City, OK 73120 | Oil & Gas Operator | Jul 2026 |
| 4188 | Buttes Gas & Oil Co | | Oil & Gas Operator | Dec 2009 |
| 4189 | Buttes Resources Company | Houston, TX 77056 | Oil & Gas Operator | May 2007 |
| 4190 | Buttonwood Petro | | Oil & Gas Operator | Aug 1994 |
| 4191 | Buttonwood Petroleum Inc | Tulsa, OK 74136-4234 | Oil & Gas Operator | Jan 2014 |
| 4192 | Buttram Energies Inc | Oklahoma City, OK 73112-7235 | Oil & Gas Operator | Nov 2021 |
| 4193 | Buttram Operating Company LLC | Heath, TX 75032-1931 | Oil & Gas Operator | Nov 2025 |
| 4194 | Buxton Energy LLC | Oklahoma City, OK 73116-9111 | Oil & Gas Operator | Apr 2014 |
| 4195 | Buxton Fred M | Oklahoma City, OK 73116-9111 | Oil & Gas Operator | Feb 2007 |
| 4196 | BVD Inc | Yates Center, KS 66783-0194 | Oil & Gas Operator | Jul 2026 |
| 4197 | BVX Operating, Inc. | Boerne, TX 78006 | Oil & Gas Operator | Sep 2026 |
| 4198 | BW Oil LLC | Hamel, MN 55340 | Oil Operator | Jun 2015 |
| 4199 | Bwab Incorporated | Denver, CO 80202 | Oil & Gas Operator | Aug 1996 |
| 4200 | BWB Resources Inc | Colorado Springs, CO 80908-7204 | Oil & Gas Operator | Jan 2016 |