| 2101 | Ballard Petroleum LLC | Billings, MT 59102-5406 | Oil & Gas Operator | Apr 2014 |
| 2102 | Ballew Oil & Gas Inc | Yale, OK 74085 | Oil Operator | Sep 1995 |
| 2103 | Ballou Energy | | Oil Operator | Nov 2024 |
| 2104 | Ballou Enterprises, Inc. | Horseshoe Bay, TX 78657 | Oil & Gas Operator | Jan 1997 |
| 2105 | Ballou Oil Well | | Oil Operator | Mar 1995 |
| 2106 | Ballou Oil Well Service | | Oil Operator | Jan 2025 |
| 2107 | Ballyoil Inc | Chickasha, OK 73018 | Oil & Gas Operator | Jul 2023 |
| 2108 | Balsam R C | | Oil & Gas Operator | Apr 1991 |
| 2109 | Baltic Royalty Corp. | Dallas, TX 75209 | Oil & Gas Operator | Mar 2008 |
| 2110 | Bam Energy, Inc. | San Antonio, TX 78216 | Gas Operator | Sep 1991 |
| 2111 | Bam Operating, Inc. | Eastland, TX 76448 | Oil & Gas Operator | Nov 2014 |
| 2112 | Bam Permian Operating, LLC | Midland, TX 79707 | Oil & Gas Operator | May 2025 |
| 2113 | Bam Production Company | Granbury, TX 76048 | Oil & Gas Operator | Aug 2003 |
| 2114 | Bammert, H. L. | Weesatche, TX 77993 | Oil & Gas Operator | Sep 2013 |
| 2115 | Bamsaw Oil Inc | Sapulpa, OK 74067 | Oil Operator | Dec 1993 |
| 2116 | Banam Corporation | Midland, TX 79702 | Oil & Gas Operator | Nov 2013 |
| 2117 | Bancequity Petroleum Corporation | Macedonia, OH 44056 | Oil & Gas Operator | Dec 2024 |
| 2118 | Bancroft Venture LLC | Kerens, TX 75144 | Oil Operator | May 2025 |
| 2119 | Bandera Eagle Ford, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | May 2025 |
| 2120 | Bandera Energy Company | | Oil & Gas Operator | Mar 1986 |
| 2121 | Bandera Exploration Company | Dallas, TX 75225 | Oil & Gas Operator | Jan 2017 |
| 2122 | Bandera Oil & Gas Inc | Fulshear, TX 77441 | Oil & Gas Operator | May 2025 |
| 2123 | Bandera Petroleum, Inc. | Abilene, TX 79606 | Oil & Gas Operator | Nov 2018 |
| 2124 | Banding M R Inc | Gillette, WY 82717 | Oil & Gas Operator | Apr 2025 |
| 2125 | Bandit Energy, LLC | Perry, MI 48872 | Oil Operator | Dec 2023 |
| 2126 | Bandolier Energy LLC | | Oil & Gas Operator | Mar 2020 |
| 2127 | Bands Company Inc | Millersburg, OH 44654 | Oil & Gas Operator | Dec 2014 |
| 2128 | Bands Group LLC | Millersburg, OH 44654 | Oil & Gas Operator | Dec 2024 |
| 2129 | Bandwheel Production Co LLC | | Oil Operator | Feb 2025 |
| 2130 | Bandy Paul L | | Oil Operator | Nov 1996 |
| 2131 | Bandy, Paul & Marjorie, Irrevocable Trust | Canton, KS 67428 | Oil & Gas Operator | Nov 2009 |
| 2132 | Baney Well Service Inc | Denver, CO 80237 | Oil Operator | Jun 2016 |
| 2133 | Bangert H E | | Gas Operator | Apr 1996 |
| 2134 | Bank Oil Services | Muskogee, OK 74403-4025 | Oil & Gas Operator | Mar 2020 |
| 2135 | Bankhead E & P LLC | Farmers BRNCH, TX 75234 | Oil & Gas Operator | May 2025 |
| 2136 | Bankhead Operating Corp. | Wichita Falls, TX 76307 | Oil & Gas Operator | May 2025 |
| 2137 | Bankoff Oil Comp | | Oil Operator | Jun 1995 |
| 2138 | Bankoff Oil Company | Tulsa, OK 74170 | Oil Operator | Sep 2003 |
| 2139 | Banks And Conrad | | Oil Operator | Sep 1987 |
| 2140 | Banks Oil - Lee | | Oil & Gas Operator | Jun 1995 |
| 2141 | Banks Oil Co | | Oil & Gas Operator | Jan 2025 |
| 2142 | Banks Operating Company | | Oil & Gas Operator | Jul 1989 |
| 2143 | Banks, Francis C | Fordsville, KY 42343 | Oil Operator | Dec 2018 |
| 2144 | Banks, R. C. | Midland, TX 79702 | Oil & Gas Operator | Apr 2016 |
| 2145 | Banlee Energy | Fort Worth, TX 76107 | Oil & Gas Operator | Dec 2010 |
| 2146 | Banner Oil | | Oil Operator | Nov 2019 |
| 2147 | Banner Oil & Gas LLC | Oklahoma City, OK 73159 | Oil & Gas Operator | Feb 2025 |
| 2148 | Banner Operating, LLC | Austin, TX 78735 | Oil & Gas Operator | May 2025 |
| 2149 | Banner Petroleum LLC | | Oil Operator | Dec 2015 |
| 2150 | Bannon Energy Inc | Houston, TX 77068 | Oil & Gas Operator | Jun 1998 |
| 2151 | Bannon Operating Inc | Houston, TX 77068 | Oil & Gas Operator | Sep 2003 |
| 2152 | Banquet Production, LLC | Woodson, TX 76491 | Oil Operator | May 2025 |
| 2153 | Banta And Haigh | Aurora, CO 80014 | Oil & Gas Operator | Feb 1998 |
| 2154 | Bar CT Ranch, LP | Caney, KS 67333 | Oil Operator | Jan 2025 |
| 2155 | Bar D Energy, LLC | Lubbock, TX 79423 | Oil & Gas Operator | May 2025 |
| 2156 | Bar H Production, Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Apr 1997 |
| 2157 | Bar L Producers | Fritch, TX 79036 | Oil & Gas Operator | Feb 2025 |
| 2158 | Bar Mesa Resources Inc | Roosevelt, UT 84066 | Oil & Gas Operator | Sep 2012 |
| 2159 | Bar Operating Production Co. | Abilene, TX 79604 | Oil & Gas Operator | Feb 2004 |
| 2160 | Bar V Energy LLC | Poteet, TX 78065 | Oil Operator | May 2025 |
| 2161 | Bar Val | Wadsworth, OH 44281 | Oil & Gas Operator | Dec 1998 |
| 2162 | Bar-G Oil & Gas | New Concord, OH 43762 | Oil & Gas Operator | Dec 2016 |
| 2163 | Bar-Mac Investments Inc. | Brenham, TX 77834 | Oil & Gas Operator | Jun 2017 |
| 2164 | Bara Corporation | Flower Mound, TX 75027 | Oil & Gas Operator | Apr 2004 |
| 2165 | Barataria Production SVCS, LLC | | Oil Operator | Sep 2009 |
| 2166 | Barb Oil Co | Gambier, OH 43022 | Oil & Gas Operator | Dec 1986 |
| 2167 | Barbara Fasken | Midland, TX 79701 | Oil & Gas Operator | Dec 1995 |
| 2168 | Barbe D F | Recluse, WY 82725 | Oil & Gas Operator | Dec 2000 |
| 2169 | Barbee, Bill J. | Amarillo, TX 79101 | Oil & Gas Operator | Dec 1994 |
| 2170 | Barbee, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Mar 2008 |
| 2171 | Barbee, R.L. Operating, Inc. | Corpus Chrsti, TX 78427 | Oil & Gas Operator | May 2025 |
| 2172 | Barber Oil Inc | Carlsbad, NM 88220 | Oil Operator | Mar 1994 |
| 2173 | Barber Oil LLC | Tulsa, OK 74137-3575 | Oil & Gas Operator | Feb 2025 |
| 2174 | Barber, B. S. | Kilgore, TX 75662 | Oil & Gas Operator | Nov 1998 |
| 2175 | Barbour Energy C | | Gas Operator | Jun 1993 |
| 2176 | Barbour Energy Corporation | Oklahoma City, OK 73113 | Oil & Gas Operator | May 2025 |
| 2177 | Barby Energy Corporation | Woodward, OK 73802-1660 | Oil & Gas Operator | Feb 2025 |
| 2178 | Barclay Petroleum Inc | Bremen, OH 43107 | Oil & Gas Operator | Dec 2017 |
| 2179 | Barco Co. | | Oil & Gas Operator | Dec 2000 |
| 2180 | Barco Energy, Inc. | Great Bend, KS 67530 | Oil Operator | Jun 2001 |
| 2181 | Barco Oil Co. | | Oil Operator | Dec 2009 |
| 2182 | Barcoo Exploration Inc. | | Gas Operator | Jan 1993 |
| 2183 | Barden/Bass O & G Expl. Co. Inc. | Terrell, TX 75160 | Oil & Gas Operator | Mar 2008 |
| 2184 | Barden/Bass Oil & Gas Exploration Company Inc | Terrell, TX 75160-3143 | Oil Operator | Feb 2025 |
| 2185 | Barfield Oil Cor | | Oil Operator | Oct 1995 |
| 2186 | Barfield Oil Corporation | | Oil & Gas Operator | Mar 2001 |
| 2187 | Barger Petroleum Co. | Irving, TX 75061 | Oil & Gas Operator | Jan 2019 |
| 2188 | Bargo Energy Company | Houston, TX 77010 | Oil & Gas Operator | May 2001 |
| 2189 | Bargo Energy Corporation | | Oil & Gas Operator | Apr 2000 |
| 2190 | Bargo Petroleum Corporation | Houston, TX 77002 | Oil & Gas Operator | Sep 2014 |
| 2191 | Bargsley, Coy | Abilene, TX 79603 | Oil & Gas Operator | May 2025 |
| 2192 | Barham-Boyne Oil Co. Inc. | | Oil Operator | Dec 1992 |
| 2193 | Barj Oil Co. | Brownfield, TX 79316 | Oil & Gas Operator | May 2025 |
| 2194 | Barker Oil | | Oil Operator | Sep 2023 |
| 2195 | Barker Production Co. | Shamrock, TX 79079 | Oil & Gas Operator | Mar 2010 |
| 2196 | Barker Production Co., LP | San Angelo, TX 76904 | Oil & Gas Operator | May 2025 |
| 2197 | Barker, Rodney | Shamrock, TX 79079 | Oil & Gas Operator | Aug 2012 |
| 2198 | Barline Oil, LLC | Wichita, KS 67206 | Oil Operator | Nov 2019 |
| 2199 | Barn Owls LLC | | Oil & Gas Operator | Mar 2025 |
| 2200 | Barnard Oil Operations | | Oil Operator | Jan 2025 |