| 2201 | Barrett Resources Corporation | Denver, CO 80202 | Oil & Gas Operator | Sep 2004 |
| 2202 | Barrier Resources LLC | Cedar Park, TX 78613 | Oil & Gas Operator | Aug 2003 |
| 2203 | Barron Kidd-Great American Exploration | | Oil Operator | Dec 1968 |
| 2204 | Barron Operating LLC | Midland, TX 79703 | Oil & Gas Operator | Jun 2011 |
| 2205 | Barron Petroleum LLC | San Antonio, TX 78205 | Oil & Gas Operator | Nov 2024 |
| 2206 | Barron Utilities, Inc. | | Oil Operator | Jun 1999 |
| 2207 | Barrow Petroleum LLC | Midland, TX 79710 | Oil & Gas Operator | Nov 2024 |
| 2208 | Barrow-Shaver Resources Co. | Tyler, TX 75703 | Oil & Gas Operator | Nov 2024 |
| 2209 | Barry & Campbell | | Oil & Gas Operator | Apr 1981 |
| 2210 | Barry D Lee Dba Barry Lee Investments | Crossroads, NM 88114 | Oil & Gas Operator | Jan 2022 |
| 2211 | Barry Rock Oil Co. Inc. | Plain Dealing, LA 71064 | Oil & Gas Operator | Jun 2024 |
| 2212 | Barta Enterprises | Oklahoma City, OK 73162-1728 | Oil & Gas Operator | Sep 2024 |
| 2213 | Barthel Enterprises Inc | | Oil Operator | Feb 1995 |
| 2214 | Bartlett Brenda S & Bartlett Norman C | North East, PA 16428-5547 | Gas Operator | Dec 2023 |
| 2215 | Bartlett, Donald & Janice | South Dayton, NY 14138 | Gas Operator | Dec 2023 |
| 2216 | Bartlett, Roy, G. | Harrisville, WV 26362 | Oil & Gas Operator | Dec 2021 |
| 2217 | Bartlett, W. C. | | Oil & Gas Operator | Dec 2021 |
| 2218 | Bartley Oil & Gas Co LLC | Emlenton, PA 16373 | Oil Operator | Dec 2023 |
| 2219 | Bartling Oil Com | | Gas Operator | Dec 1992 |
| 2220 | Bartling Oil Company | Austin, TX 78733 | Gas Operator | Jun 2017 |
| 2221 | Barto Oil Co. | | Oil & Gas Operator | Dec 1992 |
| 2222 | Barton Edward Lee | Mounds, OK 74047-4177 | Oil Operator | Aug 2024 |
| 2223 | Barton Exploration, Inc. | Hays, KS 67601 | Oil & Gas Operator | Jul 2024 |
| 2224 | Barton Oil & Gas Co., Inc. | | Oil & Gas Operator | Sep 1993 |
| 2225 | Barton Oil Co. | Baird, TX 79504 | Oil Operator | Jun 2004 |
| 2226 | Barton Oil Compa | | Oil Operator | Jan 1986 |
| 2227 | Barton Oil, LLC | | Oil & Gas Operator | Jan 2014 |
| 2228 | Barton, Athol Oil , Inc. | Russell, KS 67665 | Oil Operator | Jul 2001 |
| 2229 | Barton, Howard | Archer City, TX 76351 | Gas Operator | Nov 2024 |
| 2230 | Bartram, I David | Lavalette, WV 25535 | Oil & Gas Operator | Dec 2020 |
| 2231 | Barts Oilfield Servi | | Oil Operator | Jul 2024 |
| 2232 | Baruch-Foster Co | | Oil Operator | Apr 1989 |
| 2233 | Baruch-Foster Corporation | Oklahoma City, OK 73126-6770 | Oil & Gas Operator | Feb 2001 |
| 2234 | Bas Production, LLC | | Oil Operator | Nov 2019 |
| 2235 | Basa Resources Inc | Dallas, TX 75254 | Oil & Gas Operator | Nov 2024 |
| 2236 | Basal Corporation | Cleburne, TX 76033 | Oil & Gas Operator | Nov 2024 |
| 2237 | Base Petroleum | Houston, TX 77096 | Oil & Gas Operator | Jul 1994 |
| 2238 | Base Petroleum, Inc. | South Charleston, WV 25309-0000 | Oil & Gas Operator | Dec 2021 |
| 2239 | Baseline Oil & Gas Corp. | Houston, TX 77267 | Oil & Gas Operator | Oct 2010 |
| 2240 | Basf Corporation | Houston, TX 77027 | Oil & Gas Operator | Nov 1992 |
| 2241 | Basgall Oil LLC | Hays, KS 67601 | Oil Operator | Jul 2024 |
| 2242 | Basic Earth Science Sys, Inc | | Oil Operator | May 1987 |
| 2243 | Basic Earth Science Systems, Inc. | Austin, TX 78714 | Oil & Gas Operator | Apr 2010 |
| 2244 | Basic Energy & Affil Res. Inc. | | Oil & Gas Operator | May 2000 |
| 2245 | Basic Energy Services, L.P. | Fort Worth, TX 76102 | Oil Operator | Nov 2024 |
| 2246 | Basin Energy Exploration & Resources, Inc | Burkesville, KY 42717 | Oil Operator | Dec 2022 |
| 2247 | Basin Energy, Inc | | Oil Operator | Dec 2017 |
| 2248 | Basin Exploration Inc | Denver, CO 80202 | Oil & Gas Operator | Sep 2004 |
| 2249 | Basin Fuels LTD | Farmington, NM 87499 | Oil & Gas Operator | Sep 1996 |
| 2250 | Basin Minerals Inc | Farmington, NM 87402 | Oil & Gas Operator | Mar 2005 |
| 2251 | Basin Minerals LTD | Farmington, NM 87402 | Oil & Gas Operator | Feb 2005 |
| 2252 | Basin Minerals Operating Company | Dripping Springs, TX 78620 | Oil & Gas Operator | Oct 2017 |
| 2253 | Basin Oil & Gas Operating, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Nov 2024 |
| 2254 | Basin Operating Inc. | Albany, TX 76430 | Oil & Gas Operator | Nov 2024 |
| 2255 | Basin Operating Services II LLC | Oklahoma City, OK 73106-5615 | Oil & Gas Operator | Sep 2024 |
| 2256 | Basin Operating Services LLC | Oklahoma City, OK 73106-5615 | Oil & Gas Operator | Aug 2024 |
| 2257 | Basin Petroleum, Inc. | | Oil & Gas Operator | Jul 1995 |
| 2258 | Basin Petroleum, LLC | | Oil Operator | Dec 2017 |
| 2259 | Basin Resources Corporation | Fair Oaks Ranch, TX 78015 | Oil Operator | May 2013 |
| 2260 | Basin Well Service Of Odessa,Inc | New Braunfels, TX 78132 | Oil & Gas Operator | Nov 2024 |
| 2261 | Basinski, Gerald S. | Lancaster, NY 14086 | Gas Operator | Dec 2023 |
| 2262 | Basis Resources Group LLC | Oklahoma, OK 73116-1516 | Oil & Gas Operator | Sep 2024 |
| 2263 | Bass Energy Co Inc | Richfield, OH 44286 | Oil & Gas Operator | Dec 2023 |
| 2264 | Bass Enterprises Production Co | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2006 |
| 2265 | Bass Operating Co., Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 1999 |
| 2266 | Bass Petroleum | Austin, TX 78720 | Oil & Gas Operator | Aug 2004 |
| 2267 | Bass Petroleum Inc | Austin, TX 78716 | Oil & Gas Operator | Nov 2024 |
| 2268 | Bass-Franks | | Oil & Gas Operator | Jun 1997 |
| 2269 | Bastrop Energy Group | San Antonio, TX 78231 | Oil & Gas Operator | Nov 2024 |
| 2270 | Bataa Oil Inc | Greeley, CO 80634 | Oil & Gas Operator | Sep 2024 |
| 2271 | Batco Oil Company | Edmond, OK 73083 | Oil & Gas Operator | Feb 2002 |
| 2272 | Bateman Frank | Lancaster, OH 43130 | Oil & Gas Operator | Dec 1995 |
| 2273 | Bateman'S Bay Exploration, Inc. | Oklahoma City, OK 73156 | Oil & Gas Operator | Aug 2024 |
| 2274 | Bates Bradley S Dba Resurrection Crude | Nowata, OK 74048-5215 | Oil Operator | Aug 2024 |
| 2275 | Bates Creek Oil | | Oil Operator | Dec 1986 |
| 2276 | Bates Lew Jr | Lewis Center, OH 43035-261-261 | Oil & Gas Operator | Dec 2002 |
| 2277 | Bates Oil | | Oil Operator | Feb 2020 |
| 2278 | Bates Oil & Gas Inc | Worthington, OH 43085 | Oil & Gas Operator | Dec 1992 |
| 2279 | Bates Oil Company | Norphlet, AR 71759 | Oil Operator | Jan 2020 |
| 2280 | Bates* James Edward | | Oil & Gas Operator | Jul 2017 |
| 2281 | Bateson Donald Jr | | Oil Operator | Dec 2023 |
| 2282 | Batie, Patricia | Odessa, TX 79764 | Oil Operator | Nov 2024 |
| 2283 | Batista Mark F | Kane, PA 16735 | Oil Operator | Dec 2023 |
| 2284 | Batista Oil SVC | Kane, PA 16735-9003 | Oil Operator | Dec 2008 |
| 2285 | Batson Ent Ventures L.L.C. | Batson, TX 77519 | Oil Operator | Nov 2024 |
| 2286 | Battlecat Oil & Gas, LLC | Houston, TX 77082 | Oil & Gas Operator | Jul 2017 |
| 2287 | Battlecat Operating Company, LLC | Houston, TX 77082 | Oil & Gas Operator | Jul 2019 |
| 2288 | Battles Energy Corporation | Bridgeport, WV 26330 | Oil & Gas Operator | Dec 2021 |
| 2289 | Batton Oil & Gas, LLC | Spearman, TX 79081 | Oil & Gas Operator | Nov 2024 |
| 2290 | Bauer Bros | | Oil Operator | Aug 2024 |
| 2291 | Bauer Oil Investment, LLC | Cleveland, MO 64734 | Oil Operator | Jul 2024 |
| 2292 | Bauer, James E. | Wyoming, NY 14591 | Gas Operator | Dec 2023 |
| 2293 | Baugh Allan L | Drumright, OK 74030-5914 | Oil & Gas Operator | Sep 2024 |
| 2294 | Baulch Enterprises | Ada, OK 74820-8623 | Oil Operator | Dec 1999 |
| 2295 | Baumann Resources Inc | | Oil Operator | Jul 1999 |
| 2296 | Baxter And Associates Inc | Ada, OK 74820 | Oil & Gas Operator | Sep 2024 |
| 2297 | Baxter Drill. & Explor., Inc. | | Oil Operator | Jun 1997 |
| 2298 | Baxter Randall H | Tulsa, OK 74136-0908 | Oil & Gas Operator | Apr 2020 |
| 2299 | Baxter, D. B. Inc. | Midland, TX 79708 | Oil & Gas Operator | Nov 2024 |
| 2300 | Baxter, Kelly H. | Austin, TX 78767 | Oil & Gas Operator | Mar 2008 |