| 201 | Bayer, J.H. & Sons Inc | Gainesville, TX 76240 | Oil & Gas Operator | Mar 2008 |
| 202 | Baylor Operating, LLC | San Antonio, TX 78217 | Oil & Gas Operator | Sep 2025 |
| 203 | Bayou Bend Petroleum Corporation | Austin, TX 78734 | Oil & Gas Operator | Sep 2006 |
| 204 | Bayou Company, The | Refugio, TX 78377 | Oil & Gas Operator | Sep 2025 |
| 205 | Bayou Oil Co. | Los Angeles, CA 90036 | Gas Operator | Nov 1996 |
| 206 | Bayou Operating Company, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Sep 2025 |
| 207 | Bayridge Texas Corp. | Big Spring, TX 79720 | Oil & Gas Operator | Jul 2004 |
| 208 | Bayshore Exploration LLC | Bellville, TX 77418 | Oil & Gas Operator | Dec 2016 |
| 209 | Bayshore Operating Co. | Ingleside, TX 78362 | Oil & Gas Operator | Mar 2009 |
| 210 | Bayshore Operating Corp., L.L.C. | Luling, TX 78648 | Oil Operator | Sep 2025 |
| 211 | Bayswater Operating Company LLC | Denver, CO 80202 | Oil & Gas Operator | Sep 2025 |
| 212 | Baytech Inc | Midland, TX 79702 | Oil & Gas Operator | Aug 2003 |
| 213 | Baytex Energy USA, Inc. | Houston, TX 77084 | Oil & Gas Operator | Sep 2025 |
| 214 | Baytex USA Development, LLC | Houston, TX 77056 | Oil & Gas Operator | Sep 2017 |
| 215 | Baytide Petr. Inc. | Tulsa, OK 74103 | Oil & Gas Operator | Dec 1997 |
| 216 | BB & D Exploration, Inc. | Graham, TX 76450 | Oil & Gas Operator | Jan 2009 |
| 217 | BB-Southtex, LLC | San Antonio, TX 78259 | Oil & Gas Operator | Oct 2024 |
| 218 | BBC Production Company Inc. | Pottstown, PA 19464 | Oil Operator | Sep 2025 |
| 219 | BBC&D Enterprises, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Jan 2024 |
| 220 | Bbe Production Co. | Haskell, TX 79521 | Oil & Gas Operator | May 1997 |
| 221 | Bbe Production, LLC | Haskell, TX 79521 | Oil Operator | Sep 2025 |
| 222 | BBHP Oilfield Services LLC | Kilgore, TX 75662 | Oil Operator | Sep 2025 |
| 223 | BBL Operating Company LLC | Colleyville, TX 76034 | Oil & Gas Operator | Sep 2025 |
| 224 | BBS Oil Field Services Inc | Post, TX 79356 | Oil & Gas Operator | Sep 2025 |
| 225 | BBX Operating, L.L.C. | Austin, TX 78738 | Oil & Gas Operator | Sep 2025 |
| 226 | BC Exploration, LLC | Dallas, TX 75201 | Gas Operator | Sep 2025 |
| 227 | BC Operating, Inc. | Midland, TX 79710 | Oil & Gas Operator | Sep 2025 |
| 228 | Bce-Mach II LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Sep 2025 |
| 229 | Bce-Mach III LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Sep 2025 |
| 230 | BCL Operating, LLC | Houston, TX 77269 | Oil & Gas Operator | Sep 2025 |
| 231 | BCM Energy Operating LLC | Lafayette, LA 70503 | Oil Operator | Jun 2015 |
| 232 | BCP Resources, LLC | Midland, TX 79705 | Oil & Gas Operator | Sep 2025 |
| 233 | Bde Energy Solutions LLC | Bedford, TX 76021 | Oil Operator | Sep 2025 |
| 234 | BDH Technology, Inc. | Conroe, TX 77304 | Oil & Gas Operator | Mar 2001 |
| 235 | Bdi Operating, LLC | Addison, TX 75001 | Oil Operator | Feb 2025 |
| 236 | BDR Energy Corporation | Corpus Chrsti, TX 78463 | Oil & Gas Operator | Mar 1998 |
| 237 | Be Anadarko II, LLC | Austin, TX 78731 | Oil & Gas Operator | Sep 2025 |
| 238 | Beach Exploration, Inc. | Midland, TX 79701 | Oil & Gas Operator | Sep 2025 |
| 239 | Beach Oil & Gas, Inc. | Lubbock, TX 79464 | Oil & Gas Operator | Sep 2025 |
| 240 | Beachtex Oil Company, LLC | San Antonio, TX 78257 | Oil & Gas Operator | Sep 2025 |
| 241 | Beacon E&P Company, LLC | Denver, CO 80202 | Gas Operator | Feb 2016 |
| 242 | Beacon Energy Corporation (1) | Fredericksbrg, TX 78624 | Gas Operator | Sep 2002 |
| 243 | Beacon Petroleum MGMT.,Inc. | Dallas, TX 75244 | Oil & Gas Operator | Mar 1997 |
| 244 | Beaird, R.A. Oil Operating Co. | Merkel, TX 79536 | Oil & Gas Operator | Sep 2025 |
| 245 | Bean & Bean Inc. | Houston, TX 77269 | Oil & Gas Operator | Jan 2023 |
| 246 | Bear Creek Energy, LLC | Sealy, TX 77474 | Oil Operator | Sep 2025 |
| 247 | Bear Creek Operating | Pampa, TX 79066 | Oil & Gas Operator | Sep 2025 |
| 248 | Bear Minerals LLC | Dallas, TX 75214 | Oil Operator | Jan 2025 |
| 249 | Bear Of Texas, Inc. | Grand Rapids, MI 49546 | Oil & Gas Operator | Mar 2008 |
| 250 | Bear Springs Oil & Gas, L.L.C | Gorman, TX 76454 | Oil & Gas Operator | Sep 2025 |
| 251 | Bearco Operating Co., Inc. | Olney, TX 76374 | Oil & Gas Operator | May 2019 |
| 252 | Beard Oil Company | Oklahoma City, OK 73102 | Oil & Gas Operator | Aug 2013 |
| 253 | Beard Oil Company, LLC | Edna, TX 77957 | Oil & Gas Operator | Sep 2025 |
| 254 | Beasley Oil Company | Oklahoma City, OK 73120 | Oil & Gas Operator | Jun 2020 |
| 255 | Beasley Well Service Inc. | Tuscola, TX 79562 | Oil Operator | Sep 2025 |
| 256 | Beasley, Kenneth | Abilene, TX 79602 | Oil & Gas Operator | Sep 2025 |
| 257 | Beaver Oil & Gas Operating, LLC | Austin, TX 78746 | Oil & Gas Operator | Sep 2025 |
| 258 | Beaver Oil Company Inc | New Matamoras, OH 45767 | Oil & Gas Operator | Dec 2020 |
| 259 | Bebco Parts Industries, Inc. | Monahans, TX 79756 | Oil & Gas Operator | Sep 2025 |
| 260 | Bechel Oil, LLC. | Maiden Rock, WI 54750 | Oil Operator | Feb 2022 |
| 261 | Bechtel Energy Resources Corp. | Houston, TX 77210 | Oil & Gas Operator | Jun 1996 |
| 262 | Beck Resources Incorporated | Hennessey, OK 73742 | Oil & Gas Operator | May 2025 |
| 263 | Becker, Clyde M. | Ponca City, OK 74601 | Oil & Gas Operator | Oct 2009 |
| 264 | Beckham Resources, Inc. | Houston, TX 77010 | Oil & Gas Operator | Mar 2011 |
| 265 | Beckville Disp Operations, LLC | Henderson, TX 75652 | Oil Operator | Sep 2025 |
| 266 | Bedford Oil & Gas, Inc. | Luling, TX 78648 | Oil & Gas Operator | Sep 2025 |
| 267 | Bedrock Production, LLC | Houston, TX 77002 | Oil & Gas Operator | Sep 2025 |
| 268 | Bee-Jay Energy | Whiteface, TX 79379 | Oil & Gas Operator | Nov 1993 |
| 269 | Bee-Jay Petro, Inc. | Levelland, TX 79336 | Oil & Gas Operator | Jun 2024 |
| 270 | Beech Resources LLC | Williamsport, PA 17701-6209 | Gas Operator | Jun 2025 |
| 271 | Beeda Oil Company | Merkel, TX 79536 | Oil & Gas Operator | Sep 2025 |
| 272 | Beehive Operating, LLC | Graham, TX 76450 | Oil & Gas Operator | Sep 2025 |
| 273 | Beekay Company | Dallas, TX 75219 | Oil & Gas Operator | Dec 1996 |
| 274 | Beene, Tommy H. | Abilene, TX 79604 | Oil & Gas Operator | Jan 2005 |
| 275 | Beeson Energy, Inc. | Aledo, TX 76008 | Oil & Gas Operator | Sep 2025 |
| 276 | Beisch & Hanna | Windthorst, TX 76389 | Oil & Gas Operator | Sep 2025 |
| 277 | Beisch, Larry | Iowa Park, TX 76367 | Oil & Gas Operator | Sep 2025 |
| 278 | Beisch, Rusty | Windthorst, TX 76389 | Oil & Gas Operator | Sep 2025 |
| 279 | Bejo Corporation | Richmond, TX 77407 | Oil & Gas Operator | Sep 2025 |
| 280 | Bel Oil Corporation | Jenks, OK 74037 | Oil & Gas Operator | Jun 2005 |
| 281 | Belco Energy Corp. | Dallas, TX 75231 | Oil & Gas Operator | Mar 2015 |
| 282 | Belco Operating Corp. | Dallas, TX 75231 | Oil & Gas Operator | Aug 1998 |
| 283 | Belcor Inc. | Irvine, CA 92714 | Oil & Gas Operator | Nov 2000 |
| 284 | Bell & Kinley Company | Piedmont, OK 73078 | Oil & Gas Operator | Aug 2017 |
| 285 | Bell Energy | Kermit, TX 79745 | Oil & Gas Operator | Sep 2025 |
| 286 | Bell, Cody, Jr. | Midland, TX 79702 | Oil & Gas Operator | Sep 2025 |
| 287 | Bell, Johnny Inc. | Abilene, TX 79604 | Oil & Gas Operator | Sep 2025 |
| 288 | Bell, Kelly Inc. | Midland, TX 79701 | Oil & Gas Operator | Oct 1995 |
| 289 | Bell, O. M. | Merkel, TX 79536 | Oil & Gas Operator | Mar 2008 |
| 290 | Bellah & Mathiews | Woodson, TX 76491 | Oil & Gas Operator | Sep 2025 |
| 291 | Bellah Oil, Inc. | Seymour, TX 76380 | Oil & Gas Operator | Dec 2012 |
| 292 | Bellows Operating Co., L. C. | Goliad, TX 77963 | Oil & Gas Operator | Sep 2025 |
| 293 | Bellows, Dewey Oper. Co., LTD. | Refugio, TX 78377 | Oil & Gas Operator | Jul 2013 |
| 294 | Bellows, Richard | Three Rivers, TX 78071 | Oil & Gas Operator | Nov 2008 |
| 295 | Bellwether Exploration Company | Houston, TX 77010 | Oil & Gas Operator | May 2001 |
| 296 | Belmac, Inc. | Dallas, TX 75248 | Oil & Gas Operator | Nov 1998 |
| 297 | Belmar Oil & Gas, Inc. | Milano, TX 76556 | Oil & Gas Operator | Sep 2025 |
| 298 | Below Ground Level LLC | Sand Springs, OK 74063 | Oil & Gas Operator | Sep 2025 |
| 299 | Belter Inc. | Seymour, TX 76380 | Oil Operator | Sep 2025 |
| 300 | Belvan Corp. | Midland, TX 79701 | Oil & Gas Operator | Jun 1998 |