| 31301 | Weber Four Oil Co., Inc. | Hoisington, KS 67544 | Oil Operator | Jun 2025 |
| 31302 | Weber Paul A | N Canton, OH 44720 | Oil & Gas Operator | Dec 1994 |
| 31303 | Webster Energy, Inc. | | Oil & Gas Operator | Jan 1999 |
| 31304 | Webster Joe | | Oil Operator | Apr 1987 |
| 31305 | Webster Oil LLC | Leon, KS 67074 | Oil Operator | Jun 2025 |
| 31306 | Wedco Resources Corporation | | Oil & Gas Operator | Jul 1989 |
| 31307 | Wedel, Darold | Canton, KS 67428 | Oil Operator | Apr 2002 |
| 31308 | Wedgewood Resources USA Inc | Vancouver, BC V6B1V-9000 | Oil & Gas Operator | Jul 2003 |
| 31309 | Weeks Exploration Company | Houston, TX 77063 | Oil & Gas Operator | Aug 1995 |
| 31310 | Weeks, VIrginia | Hoisington, KS 67544 | Oil Operator | Mar 2002 |
| 31311 | Wefco, Inc. | Pampa, TX 79065 | Oil & Gas Operator | May 1993 |
| 31312 | Weger Petroleum Corp | Dallas, TX 75251 | Oil Operator | Jan 1987 |
| 31313 | Wehlu Producers Inc | Edmond, OK 73083-5278 | Oil & Gas Operator | Sep 2002 |
| 31314 | Wehmeyer, Gerald | Independence, KS 67301 | Oil Operator | Aug 2024 |
| 31315 | Wehunt Oil Company, Inc. | Dallas, TX 75376 | Oil & Gas Operator | Nov 2002 |
| 31316 | Weibye, Carolyn S. | Houston, TX 77098 | Oil & Gas Operator | Nov 2025 |
| 31317 | Weigel Oil Company, LLC | Gorham, KS 67640 | Oil Operator | Jun 2025 |
| 31318 | Weigel V Francis | | Oil Operator | Mar 1994 |
| 31319 | Weigel, V. Francis - Family Partnership | Gorham, KS 67640 | Oil Operator | Jul 2004 |
| 31320 | Weil Resources, Inc. | Lancaster, NY 14086 | Oil & Gas Operator | Dec 2024 |
| 31321 | Weilert Enterpri | | Oil Operator | Sep 1988 |
| 31322 | Weilert Michael | | Oil Operator | Oct 1993 |
| 31323 | Weilert, S.R. | Wichita, KS 67216 | Oil Operator | Oct 1998 |
| 31324 | Weimer & Fitzhugh | Tulsa, OK 74103-4102 | Oil & Gas Operator | Dec 1993 |
| 31325 | Weinkauf Petroleum, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Aug 2025 |
| 31326 | Weins Horton L | Sand Springs, OK 74063 | Oil & Gas Operator | Jul 2025 |
| 31327 | Weinstrom Petroleum | Devine, TX 78016 | Oil Operator | Nov 2025 |
| 31328 | Weinsz Oil & Gas Inc | North Canton, OH 44720 | Oil & Gas Operator | Dec 2003 |
| 31329 | Weir Oil Co. Inc. | | Oil & Gas Operator | Dec 2007 |
| 31330 | Weise, Kevin L. And Kathy L. | Sinclairville, NY 14782 | Gas Operator | Dec 2024 |
| 31331 | Weiser-Brown Oil Co | Magnolia, AR 71754 | Oil Operator | Jan 2025 |
| 31332 | Weiser-Brown Operating Company | Magnolia, AR 71754 | Oil & Gas Operator | Nov 2025 |
| 31333 | Weiss Drilling Inc | Jerusalem, OH 43747 | Oil & Gas Operator | Dec 2024 |
| 31334 | Weiss Oil Co. | Streator, IL 61364 | Oil & Gas Operator | Dec 1997 |
| 31335 | Weitzman Irvin | | Oil & Gas Operator | Sep 1988 |
| 31336 | Wejco, Inc. | Rising Star, TX 76471 | Oil & Gas Operator | Nov 2025 |
| 31337 | Welch Energy LLC | Drumright, OK 74030 | Oil Operator | Aug 2025 |
| 31338 | Welch Family Trust | Ada, OK 74820-9643 | Oil & Gas Operator | Apr 2015 |
| 31339 | Welch Oil & Gas Company | Parkersburg, WV 26104 | Oil & Gas Operator | Jun 2013 |
| 31340 | Welcome Well Serv. & Boykin Bros | Abilene, TX 79604 | Oil & Gas Operator | Apr 1995 |
| 31341 | Weldbank Energy Corp | Warren, PA 16365-5114 | Oil & Gas Operator | Dec 2024 |
| 31342 | Welder Exploration & Prod., Inc. | San Antonio, TX 78212 | Oil & Gas Operator | Dec 2022 |
| 31343 | Welder Operating, Inc. | San Antonio, TX 78205 | Oil & Gas Operator | Mar 2001 |
| 31344 | Welder-Heyer Energy, Inc. | San Antonio, TX 78205 | Oil & Gas Operator | Feb 2001 |
| 31345 | Welderxp LTD. | San Antonio, TX 78212 | Oil & Gas Operator | Nov 2025 |
| 31346 | Weldon Corporation | Houston, TX 77056 | Oil Operator | Feb 2020 |
| 31347 | Welhausen Operating Co., Inc. | Beeville, TX 78104 | Oil & Gas Operator | Aug 2003 |
| 31348 | Welhausen Operating Company, LP | Beeville, TX 78104 | Oil & Gas Operator | Nov 2016 |
| 31349 | Well Management Services Inc | | Oil & Gas Operator | Dec 2001 |
| 31350 | Well Recycling Company | Olney, TX 76374 | Oil Operator | Aug 2005 |
| 31351 | Well Renewal Inc | Tulsa, OK 74103-0091 | Oil Operator | Mar 2015 |
| 31352 | Well Tech Oil And Gas, Inc. | Wichita, KS 67206 | Oil Operator | Sep 2020 |
| 31353 | Well Water Management | | Oil & Gas Operator | Aug 2025 |
| 31354 | Well-Co Solutions, LLC | Batson, TX 77519 | Oil Operator | Nov 2025 |
| 31355 | Wellco Energy Inc | Harrah, OK 73045 | Oil & Gas Operator | Jul 2025 |
| 31356 | Wellco Production LLC | Purcell, OK 73080-6833 | Oil & Gas Operator | Jul 2025 |
| 31357 | Wellington Operating Company | | Oil & Gas Operator | Jun 2025 |
| 31358 | Wellington Securities, Inc. | Plano, TX 75093 | Gas Operator | Jul 2014 |
| 31359 | Wellmaster Production Co LLC | | Oil & Gas Operator | Jul 2015 |
| 31360 | Wells Allen W | Barnsdall, OK 74002 | Oil & Gas Operator | Jun 2025 |
| 31361 | Wells Edward K | Sapulpa, OK 74066-4243 | Oil & Gas Operator | Jun 2004 |
| 31362 | Wells Energy Com | | Oil & Gas Operator | Mar 1994 |
| 31363 | Wells Oil Compan | | Gas Operator | Sep 1984 |
| 31364 | Wells Oil, LLC | Gridley, KS 66852 | Oil Operator | Jun 2025 |
| 31365 | Wells Oilfield Services, Inc. | Graham, TX 76450 | Oil & Gas Operator | Nov 2025 |
| 31366 | Wells, Michael E. | Springville, NY 14141 | Gas Operator | Dec 2024 |
| 31367 | Wells-Battelstei | | Oil & Gas Operator | Mar 1993 |
| 31368 | Wells-Battelstein O&G, Inc. | | Gas Operator | Dec 1986 |
| 31369 | Wellstar Corporation | Northglenn, CO 80233 | Oil & Gas Operator | Sep 2025 |
| 31370 | Wellsville Oil C | | Oil Operator | Dec 1996 |
| 31371 | Wellsville Oil Co | Wellsville, KS 66092 | Oil Operator | Sep 2000 |
| 31372 | Wellwin Drilling | | Oil & Gas Operator | Dec 1994 |
| 31373 | Wellwin Drilling Corporation | Wellington, KS 67152 | Oil & Gas Operator | Jun 2025 |
| 31374 | Welsh Hills Oil & Gas Co | Newark, OH 43055 | Oil & Gas Operator | Dec 1999 |
| 31375 | Wem Joint Venture | Gillette, WY 82716 | Oil & Gas Operator | Sep 2015 |
| 31376 | Wem Operating, LLC | Provo, UT 84604 | Oil & Gas Operator | Aug 2025 |
| 31377 | Wema Natural Res, Inc | Sharon Grove, KY 42280 | Oil Operator | Dec 2021 |
| 31378 | Wen-Be | Jourdanton, TX 78026 | Oil & Gas Operator | Nov 2025 |
| 31379 | Wendy Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Nov 2025 |
| 31380 | Wenert Trich | | Oil & Gas Operator | Oct 1988 |
| 31381 | Wenert Trich Oil | | Oil & Gas Operator | Jul 1990 |
| 31382 | Wenexco, Inc. | Streetman, TX 75859 | Oil & Gas Operator | Nov 2025 |
| 31383 | Wengerd, Noah A. | Sherman, NY 14781 | Gas Operator | Dec 2024 |
| 31384 | Wenner Petroleum Corp | Englewood, CO 80111 | Oil & Gas Operator | Dec 1986 |
| 31385 | Wente Exploration Inc | Oklahoma City, OK 73102 | Gas Operator | Oct 2011 |
| 31386 | Wentworth Energy, Inc. | Palestine, TX 75801 | Oil & Gas Operator | Jun 2009 |
| 31387 | Wentworth Operating Company | Oklahoma City, OK 73162-1863 | Oil & Gas Operator | Aug 2025 |
| 31388 | Wentworth Production Company | | Oil & Gas Operator | Aug 1985 |
| 31389 | Werner Oil Farm | Warren, PA 16365-3608 | Oil & Gas Operator | Dec 2024 |
| 31390 | Werner Oil, Inc. | Borger, TX 79008 | Oil & Gas Operator | Sep 1996 |
| 31391 | Wernette, Louis J. | Hondo, TX 78861 | Oil & Gas Operator | Sep 2023 |
| 31392 | Werth Exploration Trust | | Oil Operator | Dec 2013 |
| 31393 | Wes Oil & Gas LLC | Clarks Mills, PA 16114-1912 | Gas Operator | Dec 2024 |
| 31394 | Wes Pro, Inc. | Jacksboro, TX 76458 | Oil Operator | Jan 2013 |
| 31395 | Wes-Mor Drilling, Inc. | Graham, TX 76450 | Oil & Gas Operator | Nov 2025 |
| 31396 | Wes-Mor Oil & Gas, Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 1994 |
| 31397 | Wes-Tex Drilling Company | Abilene, TX 79604 | Oil & Gas Operator | Jan 2000 |
| 31398 | Wes-Tex Oil Co. (I) | Bangs, TX 76823 | Oil & Gas Operator | Nov 2025 |
| 31399 | Wesco Operating Inc | Casper, WY 82602 | Oil & Gas Operator | Sep 2025 |
| 31400 | Wesco Production LLC | | Oil & Gas Operator | Jun 2025 |