| 201 | Big Four Petroleum Company | Cushing, OK 74023 | Oil & Gas Operator | Nov 2004 |
| 202 | Big Horn Oil Co., Inc. | Great Bend, KS 67530 | Oil & Gas Operator | May 2013 |
| 203 | Big J Tank Truck Service Inc | Perry, OK 73077-1238 | Oil Operator | Apr 2014 |
| 204 | Big Run Production Company | Kilgore, TX 75663 | Oil & Gas Operator | Jun 2025 |
| 205 | Big Sky Exploration LLC | Dana Point, CA 92629-2889 | Oil Operator | Apr 2020 |
| 206 | Big Sky Oil Company | Nowata, OK 74048-0187 | Oil & Gas Operator | Mar 2015 |
| 207 | Big Sky Production Co Inc | Perry, OK 73077 | Oil & Gas Operator | May 2006 |
| 208 | Biggs, Laura L | | Oil & Gas Operator | Jul 2019 |
| 209 | Bilbe Operating Company | Sapulpa, OK 74066 | Oil & Gas Operator | Apr 2003 |
| 210 | Bill Weems Oil LLC | Seminole, OK 74868 | Oil & Gas Operator | Oct 2024 |
| 211 | Billy Jack Sharber Operating LLC | Seminole, OK 74868 | Oil & Gas Operator | Feb 2025 |
| 212 | Billy Judd Investment Company | Ardmore, OK 73401-1095 | Oil & Gas Operator | Feb 2025 |
| 213 | Billy Matthews Production LLC | Dover, OK 73734 | Oil & Gas Operator | Feb 2025 |
| 214 | Binger Operations LLC | Houston, TX 77057-3187 | Oil & Gas Operator | Apr 2025 |
| 215 | Bingham Bill S | Claremore, OK 74017 | Oil Operator | Jul 1998 |
| 216 | Bingman J Brian | Sapulpa, OK 74066-1108 | Oil & Gas Operator | May 2013 |
| 217 | Bingman Lois Lemons | Healdton, OK 73438-0328 | Oil Operator | Sep 1996 |
| 218 | Bird Creek Oil Company | Tulsa, OK 74126 | Oil & Gas Operator | Dec 2000 |
| 219 | Bird Creek Resources Inc | Tulsa, OK 74121 | Oil & Gas Operator | Jul 2022 |
| 220 | Bird Oil & Gas Inc | Yukon, OK 73099-2827 | Oil & Gas Operator | Jan 2023 |
| 221 | Birks Robert L Dba Birks Production | Asher, OK 74826-9633 | Oil & Gas Operator | Feb 2025 |
| 222 | Bishop 3B Production LLC | Dewey, OK 74029-2140 | Oil Operator | Apr 2024 |
| 223 | Bison Energy Corporation | Wichita, KS 67206 | Oil & Gas Operator | Mar 2022 |
| 224 | Bison Exploration Drilling 1 LP | Dallas, TX 75205-3483 | Oil & Gas Operator | Nov 2015 |
| 225 | Bison Petroleum Inc | Tulsa, OK 74137 | Oil & Gas Operator | Nov 2004 |
| 226 | BK Exploration Corp | Tulsa, OK 74152-009 | Oil & Gas Operator | Mar 2021 |
| 227 | BKR Operating LLC | Ripley, OK 74062-6524 | Oil & Gas Operator | Dec 2024 |
| 228 | Black Aubrey C | Dallas, TX 75206 | Oil & Gas Operator | Nov 2002 |
| 229 | Black Bear Properties LLC | Oklahoma City, OK 73156-1904 | Oil & Gas Operator | Feb 2013 |
| 230 | Black Creek Exploration LLC | Healdton, OK 73438 | Oil & Gas Operator | Mar 2025 |
| 231 | Black Dome Energy Corporation | Golden, CO 80401 | Oil & Gas Operator | Dec 2019 |
| 232 | Black Dot Oil Inc | Skiatook, OK 74070 | Oil & Gas Operator | Feb 2025 |
| 233 | Black Energy LLC | Okmulgee, OK 74447 | Oil Operator | Feb 2025 |
| 234 | Black Gold Energy LLC | Jenks, OK 74037 | Oil Operator | Jun 2024 |
| 235 | Black Gold Oil Company | Duncan, OK 73533-1581 | Oil & Gas Operator | Mar 2025 |
| 236 | Black Jewel Resources LTD Co | Berryville, AR 72616-0538 | Oil & Gas Operator | Dec 2014 |
| 237 | Black Lava Operating LLC | | Oil & Gas Operator | Feb 2025 |
| 238 | Black Mesa Energy LLC | Tulsa, OK 74103-4334 | Oil & Gas Operator | Feb 2025 |
| 239 | Black Wendell D | Atwood, OK 74827-9706 | Oil & Gas Operator | Jan 2009 |
| 240 | Blackbeard Operating East LLC | Midland, TX 79701-4532 | Oil & Gas Operator | Dec 2020 |
| 241 | Blackbeard Operating, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Jun 2025 |
| 242 | Blackberry Oil Company | Jennings, OK 74038-0068 | Oil & Gas Operator | Dec 2002 |
| 243 | Blackcat Oil Company | Glencoe, OK 74032 | Oil & Gas Operator | Mar 2025 |
| 244 | Blackfire Operating LLC | Oklahoma City, OK 73116-4223 | Oil & Gas Operator | Mar 2025 |
| 245 | Blackhawk Oil Co | Ottawa, KS 66067 | Oil & Gas Operator | Jan 2011 |
| 246 | Blackjack Creek LLC | Edmond, OK 73034-8788 | Oil & Gas Operator | Aug 2019 |
| 247 | Blackjack Oak Production,LLC | | Oil Operator | Feb 2025 |
| 248 | Blackjack Oil & Gas, Inc. | Hennessey, OK 73742 | Oil & Gas Operator | Jun 2025 |
| 249 | Blackjack Oil LTD | Denver, CO 80223 | Oil Operator | May 1996 |
| 250 | Blackjack Supply Company | Edmond, OK 73013-1144 | Oil & Gas Operator | May 2012 |
| 251 | Blackrock Energy LLC | Wagoner, OK 74467 | Oil Operator | Dec 2024 |
| 252 | Blackstock Petroleum Co | Tulsa, OK 74136-4940 | Oil & Gas Operator | Oct 1994 |
| 253 | Blackwell Exploration & Development LLC | Dallas, TX 75252-5637 | Oil & Gas Operator | Jan 2024 |
| 254 | Blackwell Gas Company | | Gas Operator | Jun 1997 |
| 255 | Blackwell Operating LLC | Andrews, TX 79714 | Oil & Gas Operator | Apr 2025 |
| 256 | Blaik Oil Company | Oklahoma City, OK 73118 | Oil & Gas Operator | Feb 2009 |
| 257 | Blair Oil Company | Kingfisher, OK 73750-1213 | Oil & Gas Operator | Mar 2025 |
| 258 | Blake Production Company, Inc. | Oklahoma City, OK 73118 | Oil & Gas Operator | Jun 2025 |
| 259 | Blakemore Oil & Gas In Okla | Allen, TX 75002-5008 | Oil Operator | Aug 2013 |
| 260 | Blanchard Henry | Tupelo, OK 74572 | Oil & Gas Operator | Mar 2023 |
| 261 | BLB Inc | Kingfisher, OK 73750 | Oil & Gas Operator | Feb 2025 |
| 262 | Bledsoe Petro Corporation | Dallas, TX 75201 | Oil & Gas Operator | Dec 2000 |
| 263 | BLR Energy LLC | Pawhuska, OK 74056 | Oil Operator | Feb 2025 |
| 264 | Blubaugh Marvin C | Tonkawa, OK 74653-4739 | Oil & Gas Operator | Nov 2014 |
| 265 | Blubaugh Ronald D | Tonkawa, OK 74653-0066 | Oil & Gas Operator | Sep 2014 |
| 266 | Blue Bear Energy LLC | Coalgate, OK 74538-3898 | Gas Operator | Mar 2025 |
| 267 | Blue Bison Operating LLC | Chickasha, OK 73018 | Oil & Gas Operator | Feb 2025 |
| 268 | Blue Cedar Energy LLC | Edmond, OK 73013 | Oil & Gas Operator | Mar 2025 |
| 269 | Blue Devil Exploration LLC | Tulsa, OK 74103-4217 | Oil & Gas Operator | Jan 2024 |
| 270 | Blue Dolphin Production LLC | Oklahoma City, OK 73142 | Oil & Gas Operator | Mar 2025 |
| 271 | Blue Grass Energy, Inc. | Houston, TX 77057 | Oil & Gas Operator | Mar 2025 |
| 272 | Blue Quail Oil & Gas Inc | Yukon, OK 73099 | Oil & Gas Operator | Dec 2004 |
| 273 | Blue Star Energy, Inc. | Shawnee, OK 74802 | Oil & Gas Operator | Jun 2025 |
| 274 | Blue Water Resources LLC | Tulsa, OK 74136 | Oil & Gas Operator | Feb 2025 |
| 275 | Blue Water Solutions LLC | Oklahoma City, OK 73134-1002 | Oil & Gas Operator | Mar 2025 |
| 276 | Bluebonnet Oil Corporation | Oklahoma City, OK 73162-6249 | Oil & Gas Operator | Mar 2025 |
| 277 | Bluebonnet Oil LLC | Oklahoma City, OK 73162-6249 | Oil & Gas Operator | Mar 2025 |
| 278 | Bluehawk Properties Inc | Riverside, CA 92517-1045 | Oil & Gas Operator | Dec 2016 |
| 279 | Bluemark Energy, LLC | Tulsa, OK 74135 | Oil & Gas Operator | Jan 2025 |
| 280 | Bluestem Resources LLC | Kerrville, TX 78028 | Oil & Gas Operator | Jun 2025 |
| 281 | Bluff LTD (The) Partnership | Woodward, OK 73801-3160 | Oil Operator | Dec 1999 |
| 282 | Bluff Oil Corporation | Newkirk, OK 74647 | Oil & Gas Operator | Jan 2013 |
| 283 | BLX Inc | Edmond, OK 73013 | Oil & Gas Operator | Mar 2025 |
| 284 | BMC Petroleum Inc | Enid, OK 73701-2700 | Oil & Gas Operator | Mar 2025 |
| 285 | BMR II LLC | Evergreen, CO 80439 | Oil & Gas Operator | Jan 2023 |
| 286 | BMW Group Inc (The) | Oklahoma City, OK 73120 | Oil & Gas Operator | Jan 2013 |
| 287 | Bo-MC Operating Corporation | Enid, OK 73702-1765 | Oil & Gas Operator | Mar 2018 |
| 288 | Bo-MC Resources Corporation | Enid, OK 73702-1765 | Oil & Gas Operator | Apr 2005 |
| 289 | Bob & Son Oil Company | Hennessey, OK 73742-0578 | Oil & Gas Operator | Jul 2017 |
| 290 | Bobwhite Production Company, Inc | Tulsa, OK 74112 | Oil & Gas Operator | Feb 2025 |
| 291 | Bode Public Disposal Inc | Ames, OK 73718 | Oil Operator | Dec 1994 |
| 292 | Bogie A W & Deem G A | Boynton, OK 74422 | Oil & Gas Operator | Jan 2007 |
| 293 | Bogo Energy Corporation | Oklahoma City, OK 73134-1002 | Oil & Gas Operator | Mar 2025 |
| 294 | Bohannon M H | Jennings, OK 74038-0264 | Oil Operator | Mar 2015 |
| 295 | Boje Oil Company LLC | | Oil & Gas Operator | Feb 2025 |
| 296 | Boland Investment Company | Turpin, OK 73950-0375 | Oil & Gas Operator | Jan 2013 |
| 297 | Bolen Russell Dba Teresa Energy | Konawa, OK 74849 | Oil Operator | Feb 2025 |
| 298 | Bolen, Michael D | | Oil & Gas Operator | Feb 2025 |
| 299 | Bolin C W | Wichita Falls, TX 76301-3354 | Oil & Gas Operator | May 1995 |
| 300 | Bolin R L | Wichita Falls, TX 76308-2829 | Oil & Gas Operator | Apr 2004 |