| 2201 | Barnett Drilling & Production | | Gas Operator | Oct 1986 |
| 2202 | Barnett Energy, Inc. | The Colony, TX 75056 | Oil & Gas Operator | Jul 2025 |
| 2203 | Barnett James E | Skiatook, OK 74070-0100 | Oil & Gas Operator | May 2013 |
| 2204 | Barnett John | Skiatook, OK 74070 | Oil & Gas Operator | Apr 2025 |
| 2205 | Barnett Oil | | Oil Operator | Oct 2009 |
| 2206 | Barnett Oil Co | | Oil & Gas Operator | Dec 2009 |
| 2207 | Barnett Oil Investments, Inc. | Hobbs, NM 88240 | Oil & Gas Operator | Mar 1999 |
| 2208 | Barnett Operating, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Mar 1999 |
| 2209 | Barnett Serio | | Gas Operator | Oct 1992 |
| 2210 | Barnett Serio Exploration Co | | Oil & Gas Operator | Oct 1992 |
| 2211 | Barnett, G. | Graham, TX 76450 | Oil Operator | Jul 2025 |
| 2212 | Barnette & Sons, Inc | Dubach, LA 71235 | Oil & Gas Operator | Mar 2011 |
| 2213 | Barney, Constance S. & Wallace Barney | Andover, NY 14806 | Oil & Gas Operator | Dec 2024 |
| 2214 | Barney, Douglas F. & Kelly J. | Wellsville, NY 14895 | Gas Operator | Dec 2024 |
| 2215 | Barnhart Co LLC | Houston, TX 77056 | Oil & Gas Operator | Jul 2025 |
| 2216 | Barnhart Co. | Houston, TX 77056 | Oil & Gas Operator | Jul 2025 |
| 2217 | Barnhill, Monte | Muenster, TX 76252 | Oil Operator | Jul 2025 |
| 2218 | Barnwell Oil Company, Inc. | | Oil & Gas Operator | Sep 1991 |
| 2219 | Barnwell Petroleum Corp. | | Oil & Gas Operator | Sep 1978 |
| 2220 | Baron Crest Energy Co | Apollo, PA 15613-8912 | Oil & Gas Operator | Dec 2007 |
| 2221 | Baron Energy Inc. | San Marcos, TX 78666 | Oil & Gas Operator | Jul 2025 |
| 2222 | Baron Energy LTD. | Midland, TX 79702 | Oil & Gas Operator | Oct 2005 |
| 2223 | Baron Exploration Company | Edmond, OK 73034 | Oil & Gas Operator | Jul 2025 |
| 2224 | Baron Group Inc | Indianola, PA 15051-0563 | Oil & Gas Operator | Dec 2020 |
| 2225 | Barr Energy LLC | | Oil Operator | Jun 2010 |
| 2226 | Barr, David E & Garnet M | Grantsville, WV 26147-9862 | Oil & Gas Operator | Dec 2021 |
| 2227 | Barracuda Operating Company | Ness City, KS 67560 | Oil Operator | Mar 2025 |
| 2228 | Barrel Springs Development Corp | Denver, CO 80202 | Oil & Gas Operator | Oct 1986 |
| 2229 | Barrett Brothers Oil & Gas, Inc. | San Antonio, TX 78217 | Oil & Gas Operator | Dec 2020 |
| 2230 | Barrett Brothers Oil And Gas | San Antonio, TX 78217 | Oil & Gas Operator | Mar 1995 |
| 2231 | Barrett Corporation* Bill | | Oil & Gas Operator | May 2025 |
| 2232 | Barrett Drilling Company | Shawnee, OK 74802-1345 | Oil & Gas Operator | Jun 2013 |
| 2233 | Barrett Oil & Gas Inc | Albany, KY 42602 | Oil & Gas Operator | Dec 2023 |
| 2234 | Barrett Oil Co. | White Oak, TX 75693 | Oil & Gas Operator | Dec 2023 |
| 2235 | Barrett Patrick | | Oil & Gas Operator | Apr 1988 |
| 2236 | Barrett Resources Corporation | Denver, CO 80202 | Oil & Gas Operator | Sep 2004 |
| 2237 | Barrier Resources,L.L.C. | Cedar Park, TX 78613 | Oil & Gas Operator | Aug 2003 |
| 2238 | Barron Kidd-Great American Exploration | | Oil Operator | Dec 1968 |
| 2239 | Barron Operating LLC | Midland, TX 79703 | Oil & Gas Operator | Jun 2011 |
| 2240 | Barron Petroleum LLC | San Antonio, TX 78205 | Oil & Gas Operator | Jul 2025 |
| 2241 | Barron Utilities, Inc. | | Oil Operator | Jun 1999 |
| 2242 | Barrow Petroleum LLC | Midland, TX 79710 | Oil & Gas Operator | Jul 2025 |
| 2243 | Barrow-Shaver Resources Co. | Tyler, TX 75703 | Oil & Gas Operator | Jul 2025 |
| 2244 | Barry & Campbell | | Oil & Gas Operator | Apr 1981 |
| 2245 | Barry D Lee Dba Barry Lee Investments | Crossroads, NM 88114 | Oil & Gas Operator | Jan 2022 |
| 2246 | Barry Rock Oil Co. Inc. | Plain Dealing, LA 71064 | Oil & Gas Operator | Dec 2024 |
| 2247 | Barta Enterprises | Oklahoma City, OK 73162-1728 | Oil & Gas Operator | Apr 2025 |
| 2248 | Bartex Energy Corporation | Irving, TX 75060 | Oil & Gas Operator | Apr 1994 |
| 2249 | Bartlett Brenda S & Bartlett Norman C | North East, PA 16428-5547 | Gas Operator | Dec 2024 |
| 2250 | Bartlett, Donald & Janice | South Dayton, NY 14138 | Gas Operator | Dec 2024 |
| 2251 | Bartlett, Roy, G. | Harrisville, WV 26362 | Oil & Gas Operator | Dec 2021 |
| 2252 | Bartlett, W. C. | | Oil & Gas Operator | Dec 2021 |
| 2253 | Bartley Oil & Gas Co LLC | Emlenton, PA 16373 | Oil Operator | Dec 2024 |
| 2254 | Bartling Oil Com | | Gas Operator | Dec 1992 |
| 2255 | Bartling Oil Company | Austin, TX 78733 | Gas Operator | Jun 2017 |
| 2256 | Barto Oil Co. | | Oil & Gas Operator | Dec 1992 |
| 2257 | Barton Edward Lee | Mounds, OK 74047-4177 | Oil Operator | May 2025 |
| 2258 | Barton Exploration, Inc. | Hays, KS 67601 | Oil & Gas Operator | Mar 2025 |
| 2259 | Barton Oil & Gas Co., Inc. | | Oil & Gas Operator | Sep 1993 |
| 2260 | Barton Oil Co. | Baird, TX 79504 | Oil Operator | Jun 2004 |
| 2261 | Barton Oil Compa | | Oil Operator | Jan 1986 |
| 2262 | Barton Oil, LLC | | Oil & Gas Operator | Jan 2014 |
| 2263 | Barton, Athol Oil , Inc. | Russell, KS 67665 | Oil Operator | Jul 2001 |
| 2264 | Barton, Howard | Archer City, TX 76351 | Gas Operator | Jul 2025 |
| 2265 | Bartram, I David | Lavalette, WV 25535 | Oil & Gas Operator | Dec 2021 |
| 2266 | Barts Oilfield Servi | | Oil Operator | Mar 2025 |
| 2267 | Baruch-Foster Co | | Oil Operator | Apr 1989 |
| 2268 | Baruch-Foster Corporation | Oklahoma City, OK 73126-6770 | Oil & Gas Operator | Feb 2001 |
| 2269 | Bas Production, LLC | | Oil Operator | Nov 2019 |
| 2270 | Basa Resources, Inc. | Dallas, TX 75254 | Oil & Gas Operator | Jul 2025 |
| 2271 | Basal Corporation | Cleburne, TX 76033 | Oil & Gas Operator | Jul 2025 |
| 2272 | Base Petroleum | Houston, TX 77096 | Oil & Gas Operator | Jul 1994 |
| 2273 | Base Petroleum, Inc. | South Charleston, WV 25309-0000 | Oil & Gas Operator | Dec 2021 |
| 2274 | Baseline Oil & Gas Corp. | Houston, TX 77267 | Oil & Gas Operator | Oct 2010 |
| 2275 | Baseline Operating, LLC | Edmond, OK 73013-0000 | Oil & Gas Operator | Apr 2025 |
| 2276 | Basf Corporation | Houston, TX 77027 | Oil & Gas Operator | Nov 1992 |
| 2277 | Basgall Oil LLC | Hays, KS 67601 | Oil Operator | Mar 2025 |
| 2278 | Basic Earth Science Sys, Inc | | Oil Operator | May 1987 |
| 2279 | Basic Earth Science Systems, Inc. | Austin, TX 78714 | Oil & Gas Operator | Apr 2010 |
| 2280 | Basic Energy & Affil Res. Inc. | | Oil & Gas Operator | May 2000 |
| 2281 | Basic Energy Services, L.P. | Fort Worth, TX 76102 | Oil Operator | Jul 2025 |
| 2282 | Basin Energy, Inc | | Oil Operator | Dec 2017 |
| 2283 | Basin Exploration Inc | Denver, CO 80202 | Oil & Gas Operator | Sep 2004 |
| 2284 | Basin Fuels LTD | Farmington, NM 87499 | Oil & Gas Operator | Sep 1996 |
| 2285 | Basin Minerals Inc | Farmington, NM 87402 | Oil & Gas Operator | Mar 2005 |
| 2286 | Basin Minerals LTD | Farmington, NM 87402 | Oil & Gas Operator | Feb 2005 |
| 2287 | Basin Minerals Operating Company | Dripping Springs, TX 78620 | Oil & Gas Operator | Oct 2017 |
| 2288 | Basin Oil & Gas Operating LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Jul 2025 |
| 2289 | Basin Operating Inc. | Albany, TX 76430 | Oil & Gas Operator | Jul 2025 |
| 2290 | Basin Operating Services II LLC | Oklahoma City, OK 73106-5615 | Oil & Gas Operator | Apr 2025 |
| 2291 | Basin Operating Services LLC | Oklahoma City, OK 73106-5615 | Oil & Gas Operator | Apr 2025 |
| 2292 | Basin Petroleum, Inc. | | Oil & Gas Operator | Jul 1995 |
| 2293 | Basin Petroleum, LLC | | Oil Operator | Dec 2017 |
| 2294 | Basin Resources Corporation | Fair Oaks Ranch, TX 78015 | Oil Operator | May 2013 |
| 2295 | Basin Well Service Of Odessa,Inc | Odessa, TX 79768 | Oil & Gas Operator | Jul 2025 |
| 2296 | Basinski, Gerald S. | Lancaster, NY 14086 | Gas Operator | Dec 2024 |
| 2297 | Basis Resources Group LLC | Oklahoma, OK 73116-1516 | Oil & Gas Operator | Apr 2025 |
| 2298 | Bass Energy Co Inc | Richfield, OH 44286 | Oil & Gas Operator | Dec 2024 |
| 2299 | Bass Enterprises Production Co | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2006 |
| 2300 | Bass Operating Co., Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 1999 |