| 33401 | Winston Oil Co | Marietta, OH 45750 | Oil & Gas Operator | Oct 2025 |
| 33402 | Winter Ridge Energy LLC | Denver, CO 80202 | Oil & Gas Operator | Sep 2011 |
| 33403 | Winter'S Railroad Service, Inc | North Collins, NY 14111 | Gas Operator | Dec 2024 |
| 33404 | Winterfield Corp | | Oil Operator | Nov 2024 |
| 33405 | Winterscheid Oil, LLC | Olpe, KS 66865 | Oil Operator | Dec 2019 |
| 33406 | Wintershall Corporation | | Oil & Gas Operator | Oct 1989 |
| 33407 | Wintershall Oil | | Oil Operator | Sep 1985 |
| 33408 | Wintershall Oil & Gas Co | | Oil & Gas Operator | Feb 1980 |
| 33409 | Wintershall Oil & Gas Corp | Houston, TX 77027 | Oil & Gas Operator | Jul 1989 |
| 33410 | Winwell, L.L.C. | Shreveport, LA 71101 | Oil & Gas Operator | Dec 2007 |
| 33411 | Winzeler Oil Company | Oklahoma City, OK 73112 | Oil & Gas Operator | May 2013 |
| 33412 | Wirtz Oil, LLC | Ellinwood, KS 67526 | Oil & Gas Operator | Sep 2025 |
| 33413 | Wischkaemper, James K. | Shamrock, TX 79079 | Oil & Gas Operator | Aug 2023 |
| 33414 | Wischkaemper, Kenneth | Shamrock, TX 79079 | Oil & Gas Operator | Feb 2026 |
| 33415 | Wise Exploration | Perrin, TX 76486 | Oil & Gas Operator | Feb 2026 |
| 33416 | Wise James W | Okmulgee, OK 74447 | Oil & Gas Operator | Oct 1996 |
| 33417 | Wise Oil & Gas Company LLC | Shawnee, OK 74801-8507 | Oil & Gas Operator | Feb 2024 |
| 33418 | Wise Production Company | Bowie, TX 76230 | Oil & Gas Operator | Feb 2026 |
| 33419 | Wise Star Energy, LLC | Port Aransas, TX 78373 | Oil & Gas Operator | Feb 2026 |
| 33420 | Wise Supply Company | Bowie, TX 76230 | Oil & Gas Operator | Feb 2026 |
| 33421 | Wise Well Service | Bowie, TX 76230 | Oil & Gas Operator | Jul 2017 |
| 33422 | Wise* Wayne L | | Oil & Gas Operator | Dec 2023 |
| 33423 | Wise, Rodney J. | Anna, OH 45302 | Oil Operator | Jul 2011 |
| 33424 | Wiseman, B. W., Jr. | Midland, TX 79702 | Oil & Gas Operator | Dec 2002 |
| 33425 | Wisenbaker Production Company | Tyler, TX 75702 | Oil & Gas Operator | Oct 2011 |
| 33426 | Wiser Oil Co | Denver, CO 80202 | Oil & Gas Operator | Dec 2023 |
| 33427 | Wishbone Oil & Gas | Noble, OK 73068 | Oil & Gas Operator | Mar 2007 |
| 33428 | Wishbone Texas Operating Co LLC | Houston, TX 77064 | Oil & Gas Operator | Jul 2019 |
| 33429 | Wisley Robert | | Oil & Gas Operator | Dec 1994 |
| 33430 | Wistrom | | Oil Operator | Aug 2019 |
| 33431 | Witco Corporation | Newark, OH 43055 | Oil & Gas Operator | Dec 1995 |
| 33432 | Witcraft, Jimmy D. | Pawhuska, OK 74056 | Oil & Gas Operator | Jun 1987 |
| 33433 | Withers, Lawrence | Copeland, KS 67837 | Gas Operator | Nov 1996 |
| 33434 | Witherspoon Joe A | Bells, TX 75414 | Oil Operator | Jul 2025 |
| 33435 | Witherspoon Oil Co | Iowa Park, TX 76367 | Oil & Gas Operator | Feb 2026 |
| 33436 | Withrow Engineering, Inc. | Richardson, TX 75080 | Oil & Gas Operator | Mar 2000 |
| 33437 | Withrow Oil Company Inc | Yukon, OK 73099-7712 | Oil & Gas Operator | Apr 2021 |
| 33438 | Witkowski, Dave | Hamburg, NY 14075 | Oil & Gas Operator | Dec 2024 |
| 33439 | Witlicki Richard | Jefferson, OH 44047 | Oil & Gas Operator | Dec 2015 |
| 33440 | Witt Oil Production, Inc. | | Oil & Gas Operator | Nov 1984 |
| 33441 | Witter, Terry L. | Alma, NY 14708 | Oil Operator | Dec 2024 |
| 33442 | Wittmeyer, Richard J. & Cynthia L. | Springville, NY 14141 | Gas Operator | Dec 2024 |
| 33443 | Witty Thomas E | Enid, OK 73703 | Oil & Gas Operator | Mar 2008 |
| 33444 | Witzel, Robert R. | Dansville, NY 14437 | Gas Operator | Dec 2024 |
| 33445 | Wixson R J Compa | | Oil Operator | Jan 1989 |
| 33446 | Wixson, R. J., Co. | Wichita, KS 67278 | Oil Operator | Oct 2002 |
| 33447 | WJ South Waskom #1, LLC | Dallas, TX 75205 | Oil Operator | Feb 2026 |
| 33448 | WJC, Inc. | Post, TX 79356 | Oil & Gas Operator | Feb 2026 |
| 33449 | WJH Energy, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Feb 2026 |
| 33450 | WJM Oil Inc | Shawnee, OK 74804-3203 | Oil & Gas Operator | Jan 2013 |
| 33451 | WJR Production LLC | Fort Worth, TX 76177 | Oil Operator | Feb 2026 |
| 33452 | WJW Operating Co.,LLC | Austin, TX 78738 | Oil & Gas Operator | May 2002 |
| 33453 | Wle, Inc. | | Oil & Gas Operator | Feb 2012 |
| 33454 | WLH Production LLC | Gainesville, TX 76240 | Oil Operator | Feb 2026 |
| 33455 | WLP Oil Inc | Gillette, WY 82717 | Oil & Gas Operator | Dec 2018 |
| 33456 | WLS Corporation | | Oil Operator | Aug 2009 |
| 33457 | WLS, Inc | | Oil & Gas Operator | Nov 2025 |
| 33458 | WLW Oil & Gas LLC | Kingfisher, OK 73750 | Oil & Gas Operator | Nov 2025 |
| 33459 | WM B Hill Production Co | | Oil Operator | Jun 1991 |
| 33460 | WM Bret Hall Energy LLC | Ratliff City, OK 73481 | Oil Operator | Oct 2025 |
| 33461 | WM Energy LLC | Asher, OK 74826 | Oil & Gas Operator | Oct 2025 |
| 33462 | WM KS Energy Resources LLC | Shreveport, LA 71101 | Oil & Gas Operator | Nov 2019 |
| 33463 | WM Oil & Gas Inc | Canton, OH 44721 | Oil & Gas Operator | Dec 2018 |
| 33464 | WM Wild Wolf Production LLC | Albany, TX 76430 | Oil Operator | Feb 2026 |
| 33465 | WM. H. Brayton Trust | | Oil & Gas Operator | Dec 2000 |
| 33466 | WM. H. Kenny Consultants, LTD. | | Oil & Gas Operator | Nov 1991 |
| 33467 | WM. Herbert Hunt TR.Est. | | Oil & Gas Operator | Oct 1992 |
| 33468 | WM. Inabnet | | Gas Operator | Nov 2024 |
| 33469 | WM. T. Burton Industries, Inc. | | Oil & Gas Operator | Apr 1988 |
| 33470 | WM. Zuhone, Jr. | | Oil & Gas Operator | Aug 1988 |
| 33471 | Wme Yates LLC | | Gas Operator | Dec 2023 |
| 33472 | Wmo Oil, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Feb 2026 |
| 33473 | WMS Corporation | Corsicana, TX 75110 | Oil & Gas Operator | Feb 2026 |
| 33474 | WMS Oil Company | Post, TX 79356 | Oil & Gas Operator | May 2019 |
| 33475 | WN Operating Inc | Okmulgee, OK 74447 | Oil & Gas Operator | Oct 2025 |
| 33476 | WNR Enterprises', Inc. | | Oil & Gas Operator | Feb 1997 |
| 33477 | WNT Operating Inc | Dover, OH 44622 | Oil & Gas Operator | Dec 2001 |
| 33478 | Wnu Energy LLC | Pinedale, WY 82941 | Oil & Gas Operator | Dec 2025 |
| 33479 | Wo Operating Company | Tulsa, OK 74159 | Oil & Gas Operator | Feb 2026 |
| 33480 | Woco La, LLC | | Oil Operator | Jan 2025 |
| 33481 | Woco, Inc. | Wichita, KS 67214 | Oil Operator | Dec 2009 |
| 33482 | Wofford, C. J. | El Campo, TX 77437 | Oil & Gas Operator | Feb 2026 |
| 33483 | Wohlford Properties Inc | Barling, AR 72923 | Gas Operator | Apr 2022 |
| 33484 | Wolco Energy, Inc. | Dallas, TX 75220 | Oil & Gas Operator | May 1997 |
| 33485 | Wolcott, Ed Operating | Dallas, TX 75205 | Oil & Gas Operator | Oct 2000 |
| 33486 | Wold Energy Partners LLC | Denver, CO 80202 | Oil & Gas Operator | Feb 2022 |
| 33487 | Wold John S | | Gas Operator | Feb 1991 |
| 33488 | Wold Oil & Gas | | Oil & Gas Operator | Oct 1996 |
| 33489 | Wold Oil Properties Inc | Denver, CO 80203 | Oil & Gas Operator | Feb 2018 |
| 33490 | Wolf Creek Enterprises Inc | Stillwater, OK 74074-6965 | Oil Operator | Apr 2009 |
| 33491 | Wolf Creek Exploration Company | Amarillo, TX 79159 | Oil & Gas Operator | Aug 2000 |
| 33492 | Wolf Energy | Midland, TX 79701 | Oil & Gas Operator | Jan 1995 |
| 33493 | Wolf Energy Company | | Oil & Gas Operator | Dec 1985 |
| 33494 | Wolf Energy, Inc. | Midland, TX 79701 | Oil & Gas Operator | Oct 2021 |
| 33495 | Wolf Howard Lee | Burneyville, OK 73430-9617 | Oil & Gas Operator | Jun 2000 |
| 33496 | Wolf Production, Inc. | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 33497 | Wolf Run Mining LLC | | Oil & Gas Operator | Dec 2021 |
| 33498 | Wolf, Gene | Windthorst, TX 76389 | Oil & Gas Operator | Apr 2003 |
| 33499 | Wolf, Gene L.L.C. | Windthorst, TX 76389 | Oil & Gas Operator | Feb 2026 |
| 33500 | Wolfcamp Energy, LLC | Midland, TX 79702 | Gas Operator | Feb 2026 |