| 33301 | Winston Land & Cattle Co., Inc. | Lufkin, TX 75901 | Oil & Gas Operator | Feb 2001 |
| 33302 | Winston Land & Cattle I, LTD. | Lufkin, TX 75902 | Oil & Gas Operator | Nov 2014 |
| 33303 | Winston Oil Co | Marietta, OH 45750 | Oil & Gas Operator | Nov 2025 |
| 33304 | Winter Ridge Energy LLC | Denver, CO 80202 | Oil & Gas Operator | Sep 2011 |
| 33305 | Winter'S Railroad Service, Inc | North Collins, NY 14111 | Gas Operator | Dec 2024 |
| 33306 | Winterfield Corp | | Oil Operator | Dec 2014 |
| 33307 | Winterscheid Oil, LLC | Olpe, KS 66865 | Oil Operator | Dec 2019 |
| 33308 | Wintershall Corporation | | Oil & Gas Operator | Oct 1989 |
| 33309 | Wintershall Oil | | Oil Operator | Sep 1985 |
| 33310 | Wintershall Oil & Gas Co | | Oil & Gas Operator | Feb 1980 |
| 33311 | Wintershall Oil & Gas Corp | Houston, TX 77027 | Oil & Gas Operator | Jul 1989 |
| 33312 | Winwell, L.L.C. | Shreveport, LA 71101 | Oil & Gas Operator | Dec 2007 |
| 33313 | Winzeler Oil Company | Oklahoma City, OK 73112 | Oil & Gas Operator | May 2013 |
| 33314 | Wirtz Oil, LLC | Ellinwood, KS 67526 | Oil & Gas Operator | Sep 2025 |
| 33315 | Wischkaemper, James K. | Shamrock, TX 79079 | Oil & Gas Operator | Aug 2023 |
| 33316 | Wischkaemper, Kenneth | Shamrock, TX 79079 | Oil & Gas Operator | Feb 2026 |
| 33317 | Wise Exploration | Perrin, TX 76486 | Oil & Gas Operator | Feb 2026 |
| 33318 | Wise James W | Okmulgee, OK 74447 | Oil & Gas Operator | Oct 1996 |
| 33319 | Wise Oil & Gas Company LLC | Shawnee, OK 74801-8507 | Oil & Gas Operator | Feb 2024 |
| 33320 | Wise Production Company | Bowie, TX 76230 | Oil & Gas Operator | Feb 2026 |
| 33321 | Wise Star Energy, LLC | Port Aransas, TX 78373 | Oil & Gas Operator | Feb 2026 |
| 33322 | Wise Supply Company | Bowie, TX 76230 | Oil & Gas Operator | Feb 2026 |
| 33323 | Wise Well Service | Bowie, TX 76230 | Oil & Gas Operator | Jul 2017 |
| 33324 | Wise* Wayne L | | Oil & Gas Operator | Dec 2023 |
| 33325 | Wise, Rodney J. | Anna, OH 45302 | Oil Operator | Jul 2011 |
| 33326 | Wiseman, B. W., Jr. | Midland, TX 79702 | Oil & Gas Operator | Dec 2002 |
| 33327 | Wisenbaker Production Company | Tyler, TX 75702 | Oil & Gas Operator | Oct 2011 |
| 33328 | Wiser Oil Co | Denver, CO 80202 | Oil & Gas Operator | Dec 2023 |
| 33329 | Wishbone Oil & Gas | Noble, OK 73068 | Oil & Gas Operator | Mar 2007 |
| 33330 | Wishbone Texas Operating Co LLC | Houston, TX 77064 | Oil & Gas Operator | Jul 2019 |
| 33331 | Wisley Robert | | Oil Operator | Dec 1994 |
| 33332 | Wistrom | | Oil Operator | Aug 2019 |
| 33333 | Witco Corporation | Newark, OH 43055 | Oil & Gas Operator | Dec 1995 |
| 33334 | Witcraft, Jimmy D. | Pawhuska, OK 74056 | Oil & Gas Operator | Jun 1987 |
| 33335 | Withers, Lawrence | Copeland, KS 67837 | Gas Operator | Nov 1996 |
| 33336 | Witherspoon Joe A | Bells, TX 75414 | Oil Operator | Jul 2025 |
| 33337 | Witherspoon Oil Co | Iowa Park, TX 76367 | Oil & Gas Operator | Feb 2026 |
| 33338 | Withrow Engineering, Inc. | Richardson, TX 75080 | Oil & Gas Operator | Mar 2000 |
| 33339 | Withrow Oil Company Inc | Yukon, OK 73099-7712 | Oil & Gas Operator | Apr 2021 |
| 33340 | Witkowski, Dave | Hamburg, NY 14075 | Oil & Gas Operator | Dec 2024 |
| 33341 | Witlicki Richard | Jefferson, OH 44047 | Oil & Gas Operator | Dec 2015 |
| 33342 | Witt Oil Production, Inc. | | Oil & Gas Operator | Nov 1984 |
| 33343 | Witter, Terry L. | Alma, NY 14708 | Oil Operator | Dec 2024 |
| 33344 | Wittmeyer, Richard J. & Cynthia L. | Springville, NY 14141 | Gas Operator | Dec 2024 |
| 33345 | Witty Thomas E | Enid, OK 73703 | Oil & Gas Operator | Mar 2008 |
| 33346 | Witzel, Robert R. | Dansville, NY 14437 | Gas Operator | Dec 2024 |
| 33347 | Wixson R J Compa | | Oil Operator | Jan 1989 |
| 33348 | Wixson, R. J., Co. | Wichita, KS 67278 | Oil Operator | Oct 2002 |
| 33349 | WJ South Waskom #1, LLC | Dallas, TX 75205 | Oil Operator | Feb 2026 |
| 33350 | WJC, Inc. | Post, TX 79356 | Oil & Gas Operator | Feb 2026 |
| 33351 | WJH Energy, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Feb 2026 |
| 33352 | WJM Oil Inc | Shawnee, OK 74804-3203 | Oil & Gas Operator | Jan 2013 |
| 33353 | WJR Production LLC | Fort Worth, TX 76177 | Oil Operator | Feb 2026 |
| 33354 | WJW Operating Co.,LLC | Austin, TX 78738 | Oil & Gas Operator | May 2002 |
| 33355 | Wle, Inc. | | Oil & Gas Operator | Feb 2012 |
| 33356 | WLH Production LLC | Gainesville, TX 76240 | Oil Operator | Feb 2026 |
| 33357 | WLP Oil Inc | Gillette, WY 82717 | Oil & Gas Operator | Dec 2018 |
| 33358 | WLS Corporation | | Oil Operator | Aug 2009 |
| 33359 | WLS, Inc | | Oil & Gas Operator | Nov 2025 |
| 33360 | WLW Oil & Gas LLC | Kingfisher, OK 73750 | Oil & Gas Operator | Dec 2025 |
| 33361 | WM B Hill Production Co | | Oil Operator | Jun 1991 |
| 33362 | WM Energy LLC | Asher, OK 74826 | Oil & Gas Operator | Nov 2025 |
| 33363 | WM KS Energy Resources LLC | Shreveport, LA 71101 | Oil & Gas Operator | Nov 2019 |
| 33364 | WM Oil & Gas Inc | Canton, OH 44721 | Oil & Gas Operator | Dec 2018 |
| 33365 | WM Wild Wolf Production LLC | Albany, TX 76430 | Oil Operator | Feb 2026 |
| 33366 | WM. H. Brayton Trust | | Oil & Gas Operator | Dec 2000 |
| 33367 | WM. H. Kenny Consultants, LTD. | | Oil & Gas Operator | Nov 1991 |
| 33368 | WM. Herbert Hunt TR.Est. | | Oil & Gas Operator | Oct 1992 |
| 33369 | WM. Inabnet | | Gas Operator | Nov 2024 |
| 33370 | WM. T. Burton Industries, Inc. | | Oil & Gas Operator | Apr 1988 |
| 33371 | WM. Zuhone, Jr. | | Oil & Gas Operator | Aug 1988 |
| 33372 | Wme Yates LLC | | Gas Operator | Dec 2023 |
| 33373 | Wmo Oil, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Feb 2026 |
| 33374 | WMS Corporation | Corsicana, TX 75110 | Oil & Gas Operator | Feb 2026 |
| 33375 | WMS Oil Company | Post, TX 79356 | Oil & Gas Operator | May 2019 |
| 33376 | WN Operating Inc | Okmulgee, OK 74447 | Oil & Gas Operator | Nov 2025 |
| 33377 | WNR Enterprises', Inc. | | Oil & Gas Operator | Feb 1997 |
| 33378 | WNT Operating Inc | Dover, OH 44622 | Oil & Gas Operator | Dec 2001 |
| 33379 | Wnu Energy LLC | Pinedale, WY 82941 | Oil & Gas Operator | Jan 2026 |
| 33380 | Wo Operating Company | Tulsa, OK 74159 | Oil & Gas Operator | Feb 2026 |
| 33381 | Woco La, LLC | | Oil Operator | Jan 2025 |
| 33382 | Woco, Inc. | Wichita, KS 67214 | Oil Operator | Dec 2009 |
| 33383 | Wofford, C. J. | El Campo, TX 77437 | Oil & Gas Operator | Feb 2026 |
| 33384 | Wohlford Properties Inc | Barling, AR 72923 | Gas Operator | Apr 2022 |
| 33385 | Wolco Energy, Inc. | Dallas, TX 75220 | Oil & Gas Operator | May 1997 |
| 33386 | Wolcott, Ed Operating | Dallas, TX 75205 | Oil & Gas Operator | Oct 2000 |
| 33387 | Wold Energy Partners LLC | Denver, CO 80202 | Oil & Gas Operator | Feb 2022 |
| 33388 | Wold John S | | Gas Operator | Feb 1991 |
| 33389 | Wold Oil & Gas | | Oil & Gas Operator | Oct 1996 |
| 33390 | Wold Oil Properties Inc | Denver, CO 80203 | Oil & Gas Operator | Feb 2018 |
| 33391 | Wolf Creek Enterprises Inc | Stillwater, OK 74074-6965 | Oil Operator | Apr 2009 |
| 33392 | Wolf Creek Exploration Company | Amarillo, TX 79159 | Oil & Gas Operator | Aug 2000 |
| 33393 | Wolf Energy | Midland, TX 79701 | Oil & Gas Operator | Jan 1995 |
| 33394 | Wolf Energy Company | | Oil & Gas Operator | Dec 1985 |
| 33395 | Wolf Energy, Inc. | Midland, TX 79701 | Oil & Gas Operator | Oct 2021 |
| 33396 | Wolf Howard Lee | Burneyville, OK 73430-9617 | Oil & Gas Operator | Jun 2000 |
| 33397 | Wolf Production, Inc. | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 33398 | Wolf Run Mining LLC | | Oil & Gas Operator | Dec 2021 |
| 33399 | Wolf, Gene | Windthorst, TX 76389 | Oil & Gas Operator | Apr 2003 |
| 33400 | Wolf, Gene L.L.C. | Windthorst, TX 76389 | Oil & Gas Operator | Feb 2026 |