| 201 | Blackhawk Explor | | Oil Operator | Jan 1990 |
| 202 | Blackhawk Exploration, Inc. | Wichita, KS 67214 | Oil & Gas Operator | May 2020 |
| 203 | Blackhawk Oil Co | Ottawa, KS 66067 | Oil & Gas Operator | Jan 2011 |
| 204 | Blackhawk Production Company | | Oil Operator | Dec 2023 |
| 205 | Blackjack Oil & Gas, Inc. | Hennessey, OK 73742 | Oil & Gas Operator | Apr 2024 |
| 206 | Blackstone Drill | | Oil & Gas Operator | Jan 1989 |
| 207 | Blackstone Drilling, Inc. | McPherson, KS 67460 | Gas Operator | Nov 2011 |
| 208 | Blackstone Oil & Gas (Kansas), LLC | Houston, TX 77002 | Gas Operator | Dec 2023 |
| 209 | Blair H H Oil Co | | Oil Operator | Feb 1988 |
| 210 | Blake Exploration | Hays, KS 67601 | Oil Operator | Oct 2007 |
| 211 | Blake Exploration, LLC | Bogue, KS 67625 | Oil Operator | Dec 2023 |
| 212 | Blake Production Company, Inc. | Oklahoma City, OK 73118 | Oil & Gas Operator | Apr 2024 |
| 213 | Blanchard, James R. | Paola, KS 66071 | Oil Operator | Nov 2015 |
| 214 | Blanchard, Joe, Jr. | Houma, LA 70360 | Oil Operator | Sep 1989 |
| 215 | Blazer, John A. | Oak Grove, AR 72660 | Oil Operator | Oct 1995 |
| 216 | Blessed Operating LLC | Medicine Lodge, KS 67104 | Oil & Gas Operator | Dec 2023 |
| 217 | Bloomer Well Ser | | Oil Operator | Mar 1995 |
| 218 | Bloomer Well Service | | Oil Operator | Dec 2009 |
| 219 | Bloomer, Don C. And Bessie L. Liv. Trust | Rantoul, KS 66079 | Oil Operator | Nov 2023 |
| 220 | Blubaugh Charles | | Oil Operator | Feb 1995 |
| 221 | Blue Diamond Holdings, LLC | Wellsville, KS 66092 | Oil Operator | Dec 2009 |
| 222 | Blue Goose Drill | | Oil Operator | Aug 1991 |
| 223 | Blue Goose Drilling Company, Inc. | Great Bend, KS 67530 | Oil Operator | Dec 2023 |
| 224 | Blue Mountain Company, Inc. | Wichita, KS 67212 | Oil Operator | Feb 1999 |
| 225 | Blue Sky Investments LLC | Harper, KS 67058 | Oil Operator | Dec 2009 |
| 226 | Blue Steel Investments, LLC | Edmond, OK 73013 | Oil Operator | Mar 2024 |
| 227 | Blue Top Crude Oil Co., Inc. | Farlington, KS 66734 | Oil Operator | Dec 2023 |
| 228 | Blue Top Energy LLC | Westport, CT 06880 | Oil Operator | Dec 2019 |
| 229 | Bluebird Production, Inc. | Great Bend, KS 67530 | Oil Operator | Nov 2011 |
| 230 | Blueridge Petroleum Corporation | Edmond, OK 73003 | Oil & Gas Operator | Dec 2023 |
| 231 | Bluestem, Inc | Cedar Vale, KS 67024 | Oil Operator | Dec 2014 |
| 232 | Bluetop Oil Comp | | Oil Operator | Nov 1995 |
| 233 | Bluff Creek Ridge, Inc. | Anthony, KS 67003 | Oil & Gas Operator | Dec 2023 |
| 234 | BMF Oil LLC | Hamilton, KS 66853 | Oil Operator | Dec 2019 |
| 235 | Bob'S Hauling Service, Inc. | St John, KS 67576 | Oil Operator | Nov 2023 |
| 236 | Bobcat Oilfield Service, Inc. | Louisburg, KS 66053 | Oil Operator | Dec 2023 |
| 237 | Bobcat Oilfield Services, Inc. | | Oil Operator | Dec 2009 |
| 238 | Boden Oil Compan | | Oil Operator | Jan 1985 |
| 239 | Boeckman, Robert | Independence, KS 67301 | Oil Operator | Aug 2004 |
| 240 | Boger Brothers D | | Oil & Gas Operator | Nov 1992 |
| 241 | Boger Brothers O | | Oil Operator | Jul 1995 |
| 242 | Bogle Dale Drill | | Oil Operator | Jul 1995 |
| 243 | Bogle Oilfield Services, LLC | Wellsville, KS 66092 | Oil Operator | Oct 2017 |
| 244 | Bohannan, Jerry | Sedan, KS 67361 | Oil Operator | Aug 2023 |
| 245 | Bolding Grady Co | | Oil & Gas Operator | Nov 1995 |
| 246 | Boley Investment | | Oil Operator | Aug 1995 |
| 247 | Boley Investments, Inc. | Wichita, KS 67212 | Oil Operator | Jun 1998 |
| 248 | Bolinger Backhoe | | Oil & Gas Operator | Dec 1996 |
| 249 | Bolinger Enterprises | | Oil & Gas Operator | Nov 1997 |
| 250 | Bollinger Oil Co | Tulsa, OK 74105 | Oil Operator | Aug 2018 |
| 251 | Bollinger, Jerald | Chanute, KS 66720 | Oil Operator | Aug 2023 |
| 252 | Bollinger, M A | Chanute, KS 66720 | Oil Operator | Jun 2023 |
| 253 | Bomber Oil Inc. | Parker, KS 66072 | Oil Operator | Oct 2022 |
| 254 | Bonanza Energy C | | Oil & Gas Operator | Sep 1995 |
| 255 | Bonanza Energy Corp | Benedict, KS 66714 | Oil & Gas Operator | Jul 2003 |
| 256 | Bonanza Oil Comp | | Oil Operator | Sep 1990 |
| 257 | Bone, Sally L. | Woodland Park, CO 80866 | Gas Operator | Dec 2023 |
| 258 | Bonwell, W. A. | Wichita, KS 67202 | Oil Operator | Mar 1996 |
| 259 | Booth Industries Oil And Gas, LLC | Big Cove Tannery, PA 17212 | Oil Operator | Jul 2020 |
| 260 | Booth Oil Compan | | Oil Operator | Aug 1992 |
| 261 | Boots Oil, Inc. | Welda, KS 66091 | Oil Operator | Aug 2000 |
| 262 | Boots, H. E. | Independence, KS 67301 | Oil Operator | Apr 1993 |
| 263 | Border-Line Inco | | Oil Operator | Nov 1989 |
| 264 | Borell Oil Compa | | Oil Operator | Nov 1986 |
| 265 | Borell, Albert W. | Wilson, KS 67490 | Oil Operator | Jul 2005 |
| 266 | Borell, Elvern D. | Dighton, KS 67839 | Oil Operator | Dec 2009 |
| 267 | Boswell Energy Corp. | Oklahoma City, OK 73114-7401 | Oil & Gas Operator | Nov 2004 |
| 268 | Bowen Oil & Expl | | Oil & Gas Operator | Apr 1993 |
| 269 | Bowen, Charles D. | Sedan, KS 67361 | Oil & Gas Operator | Jul 1998 |
| 270 | Bowers Drilling | | Oil & Gas Operator | Jul 1995 |
| 271 | Bowers Drilling Co., Inc. | Wichita, KS 67211 | Oil & Gas Operator | Sep 2003 |
| 272 | Bowie Oil LLC | | Oil Operator | Dec 2023 |
| 273 | Bowles, Jack | Edmond, OK 73083 | Oil Operator | Apr 2020 |
| 274 | Bowman Oil Compa | | Oil Operator | Feb 1994 |
| 275 | Bowman Oil Company, A General Partnership | Codell, KS 67663 | Oil Operator | Dec 2023 |
| 276 | Boxberger Carl O | | Oil Operator | May 1994 |
| 277 | Boxberger, Carl Oil, Inc. | Great Bend, KS 67530 | Oil & Gas Operator | Dec 2009 |
| 278 | Boyd, Daniel P. | Overland Park, KS 66214 | Oil Operator | Mar 1989 |
| 279 | Boyer Jay C | | Oil Operator | Feb 1994 |
| 280 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Jan 2024 |
| 281 | BP Exploration I | | Oil & Gas Operator | Oct 1994 |
| 282 | BPG Capital, LLC | Frisco, TX 75034 | Oil Operator | Jul 2018 |
| 283 | Brackeen Line Cleaning, Inc. | Claflin, KS 67525 | Oil Operator | Nov 2023 |
| 284 | Braden Oil Compa | | Gas Operator | Jul 1992 |
| 285 | Braden Petroleum | | Oil Operator | Oct 1988 |
| 286 | Braden Petroleum & Well Plugging Company | | Oil Operator | Dec 2009 |
| 287 | Braden Petroleum Company | Augusta, KS 67010 | Oil Operator | Apr 2008 |
| 288 | Braden-Deem Inc | Wichita, KS 67226 | Oil & Gas Operator | Dec 2023 |
| 289 | Braden-Deem Inco | | Oil & Gas Operator | Nov 1994 |
| 290 | Bradford Pipe | | Oil Operator | Dec 1983 |
| 291 | Bradley & Bradley Oil, A General Partnership | Dexter, KS 67038 | Oil Operator | Sep 2009 |
| 292 | Bradley Oil Company | Edmond, OK 73013 | Oil Operator | Dec 2023 |
| 293 | Brake Inc. | | Oil & Gas Operator | Sep 2017 |
| 294 | Bramble Oil Company | Wichita, KS 67206 | Oil & Gas Operator | Mar 2007 |
| 295 | Bramwell Petrole | | Oil & Gas Operator | Dec 1995 |
| 296 | Bramwell Petroleum, Inc. | Zenda, KS 67159 | Oil & Gas Operator | Dec 2023 |
| 297 | Brandt Prod Comp | | Oil & Gas Operator | Sep 1994 |
| 298 | Brandt Production Company, Inc. | Wichita, KS 67230 | Oil Operator | Jan 2003 |
| 299 | Brange | | Oil & Gas Operator | Oct 2009 |
| 300 | Brant Energy, LLC | Rantoul, KS 66079 | Oil Operator | Apr 2022 |