| 33301 | Wilson Well Service | Loco, OK 73442-0114 | Oil & Gas Operator | Mar 2018 |
| 33302 | Wilson Well Service Inc. | Cross Plains, TX 76443 | Oil & Gas Operator | Feb 2026 |
| 33303 | Wilson, Billy R. | New Braunfels, TX 78130 | Oil & Gas Operator | Feb 2026 |
| 33304 | Wilson, Brian K | Fairmont, WV 26554-0148 | Oil & Gas Operator | Dec 2018 |
| 33305 | Wilson, Bruce Oil Inc | Columbia, KY 42728 | Oil Operator | Dec 2023 |
| 33306 | Wilson, Charles B., Jr., Inc. | Houston, TX 77027 | Oil & Gas Operator | Apr 2000 |
| 33307 | Wilson, Clay S | | Oil Operator | Oct 2025 |
| 33308 | Wilson, David A. | Longview, TX 75606 | Oil & Gas Operator | Mar 1997 |
| 33309 | Wilson, Dell | Odessa, TX 79762 | Oil & Gas Operator | Aug 2004 |
| 33310 | Wilson, Dewey | Coleman, TX 76834 | Oil & Gas Operator | Nov 2007 |
| 33311 | Wilson, Don H., Inc. | Elkhart, TX 75839 | Oil & Gas Operator | May 2019 |
| 33312 | Wilson, E. C. Enterprises, Inc. | Houston, TX 77056 | Gas Operator | May 1993 |
| 33313 | Wilson, Ernest L | Morganfield, KY 42437 | Oil Operator | Dec 2023 |
| 33314 | Wilson, H C | | Gas Operator | Dec 2003 |
| 33315 | Wilson, Jerry L. | Ranger, TX 76470 | Oil & Gas Operator | Feb 2026 |
| 33316 | Wilson, Olan Max | Cisco, TX 76437 | Oil & Gas Operator | Feb 2026 |
| 33317 | Wilson, W R | | Oil & Gas Operator | Oct 2025 |
| 33318 | Wilson, W. Corp. | Midland, TX 79705 | Oil & Gas Operator | Mar 1999 |
| 33319 | Wilson, W.W. Jr. Properties | Abilene, TX 79605 | Oil & Gas Operator | Jul 1995 |
| 33320 | Wilson, Warren C | | Oil Operator | Oct 2025 |
| 33321 | Wilson, WM. B. Exploration Inc. | Midland, TX 79701 | Oil & Gas Operator | Jan 1996 |
| 33322 | Wilson-Raczka, Diane R. | Irving, NY 14081 | Gas Operator | Dec 2024 |
| 33323 | Wilson-Shab Corp. | Electra, TX 76360 | Oil & Gas Operator | Feb 2026 |
| 33324 | Wilton Oil Company | Dallas, TX 75206 | Oil & Gas Operator | Apr 1999 |
| 33325 | Wilton Petroleum | | Oil & Gas Operator | Jun 1985 |
| 33326 | Wilton Petroleum, Inc. | Canton, KS 67428 | Oil & Gas Operator | Sep 2025 |
| 33327 | Wilton, Frank | Graham, TX 76450 | Oil & Gas Operator | Oct 2016 |
| 33328 | Wimberley Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Feb 2013 |
| 33329 | Wimberley James A | Dallas, TX 75229-6180 | Oil & Gas Operator | Nov 2014 |
| 33330 | Wimco | Dallas, TX 75229 | Oil & Gas Operator | Jul 2008 |
| 33331 | Wimsco, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Dec 1994 |
| 33332 | Wimsett Kenneth | | Oil Operator | Apr 1989 |
| 33333 | Win Oil Company | Russell, KS 67665 | Oil & Gas Operator | Jul 2021 |
| 33334 | Winbeau Oil & Gas Co. | | Oil & Gas Operator | Oct 2013 |
| 33335 | Winchester Energy Operating Co. | Austin, TX 78746 | Oil & Gas Operator | Feb 2026 |
| 33336 | Winchester Energy, LLC | Houston, TX 77056 | Oil & Gas Operator | Feb 2026 |
| 33337 | Winchester Exploration, Inc. | Arlington, TX 76013 | Oil & Gas Operator | Aug 2003 |
| 33338 | Winchester Oil & Gas LLC | Rockdale, TX 76567 | Oil Operator | Feb 2026 |
| 33339 | Winchester Oil Corporation | Maysville, OK 73057-0600 | Oil & Gas Operator | Apr 2010 |
| 33340 | Winchester Operating, Inc. | Bryan, TX 77808 | Oil & Gas Operator | Aug 2001 |
| 33341 | Winchester Production Co., LTD. | Shreveport, LA 71129 | Oil & Gas Operator | Sep 2008 |
| 33342 | Winchester Production Company | Shreveport, LA 71129 | Oil & Gas Operator | Nov 2008 |
| 33343 | Winco Of Kansas | Kechi, KS 67067 | Oil Operator | Aug 1982 |
| 33344 | Winco Oil Inc. | Abilene, TX 79608 | Oil & Gas Operator | Feb 2026 |
| 33345 | Winco Petroleum Company | Richardson, TX 75080 | Oil & Gas Operator | Jan 2003 |
| 33346 | Winco Petroleum Corp | Denver, CO 80202 | Oil & Gas Operator | Dec 1997 |
| 33347 | Wind River Energy Commission | | Oil Operator | Dec 2025 |
| 33348 | Wind River Energy, Inc. | Midland, TX 79710 | Oil & Gas Operator | Feb 2026 |
| 33349 | Wind River Exploration | Powell, WY 82435 | Oil & Gas Operator | Dec 2025 |
| 33350 | Wind River Exploration Inc | Sewickley, PA 15143 | Oil & Gas Operator | Sep 2025 |
| 33351 | Wind River II Corporation | Midvale, UT 84047-6002 | Gas Operator | Jan 2020 |
| 33352 | Wind River Oil & Gas, Inc. | Jackson, WY 83002 | Oil Operator | Aug 2000 |
| 33353 | Wind River Resources Corp | Park City, UT 84098 | Oil & Gas Operator | Jan 2020 |
| 33354 | Wind River Resources Inc | Tulsa, OK 74136-6381 | Oil & Gas Operator | Jun 2010 |
| 33355 | Winder Oil Company | | Oil Operator | Jun 2025 |
| 33356 | Windfall Oil & Gas Inc | Falls Creek, PA 15840-2617 | Gas Operator | Dec 2024 |
| 33357 | Windfohr Oil Company | | Oil & Gas Operator | May 1980 |
| 33358 | Windgate Oil Com | | Oil Operator | Jul 1985 |
| 33359 | Windham Oil Company | | Oil & Gas Operator | Dec 1987 |
| 33360 | Windham Oil Corp. | | Oil & Gas Operator | Dec 2024 |
| 33361 | Windham Resources | Abilene, TX 79608 | Oil & Gas Operator | Feb 2026 |
| 33362 | Windham Resources, Inc. | Tuscola, TX 79562 | Oil & Gas Operator | Feb 2004 |
| 33363 | Windham, L. E. | Rankin, TX 79778 | Oil & Gas Operator | Dec 1996 |
| 33364 | Windham, L.E. Estate Of | Midland, TX 79702 | Oil & Gas Operator | Mar 2012 |
| 33365 | Windler-Doudna, A General Partnership | | Oil Operator | Sep 2000 |
| 33366 | Windmill Oil Company | Austin, TX 78747 | Oil & Gas Operator | Mar 2008 |
| 33367 | Windmill Windy Acres Farm, LLC | Penn Yan, NY 14527 | Gas Operator | Dec 2024 |
| 33368 | Window Operating Co., The | Coleman, TX 76834 | Oil & Gas Operator | Feb 2026 |
| 33369 | Windridge Operating LLC | | Oil & Gas Operator | Dec 2025 |
| 33370 | Windrush Operating Co., L.L.C. | Longville, LA 70652 | Oil & Gas Operator | Feb 2026 |
| 33371 | Windrush Operating Company | | Oil & Gas Operator | Jan 2009 |
| 33372 | Winds Exploration And Production, LLC | Houston, TX 77032 | Gas Operator | Jan 2024 |
| 33373 | Windsor Associates Inc | Fairlawn, OH 44333-4006 | Oil & Gas Operator | Dec 2012 |
| 33374 | Windsor Energy Group LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Aug 2021 |
| 33375 | Windsor Energy Inc | Dallas, TX 75204-3199 | Oil & Gas Operator | May 2006 |
| 33376 | Windsor Exploration Company | Dallas, TX 75204 | Oil & Gas Operator | Jan 1994 |
| 33377 | Windsor Gas Corporation | | Oil & Gas Operator | Aug 1989 |
| 33378 | Windsor Permian LLC | Midland, TX 79701 | Oil & Gas Operator | Jun 2012 |
| 33379 | Windward Development LLC | Tulsa, OK 74136-7007 | Oil & Gas Operator | Jul 2019 |
| 33380 | Windy Cove Energy II, LLC | Houston, TX 77079 | Oil & Gas Operator | Sep 2020 |
| 33381 | Wineglass Production, LLC | Ranger, TX 76470 | Oil Operator | Feb 2026 |
| 33382 | Wineinger Dickie L Dba Royal Petroleum Co | Iowa Park, TX 76367 | Oil Operator | Nov 2022 |
| 33383 | Wineland Oil - LLC | Hays, KS 67601 | Oil Operator | Sep 2025 |
| 33384 | Wineridge Inc. | Austin, TX 78747 | Oil Operator | Feb 2026 |
| 33385 | Winfall Energy Inc N V | Vandergrift, PA 15690-2001 | Oil & Gas Operator | Dec 2024 |
| 33386 | Winfield Operating Company | Dallas, TX 75214 | Oil & Gas Operator | Feb 2026 |
| 33387 | Winfrey Oil Co., Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | May 2016 |
| 33388 | Wing Corporation | Houston, TX 77002 | Oil & Gas Operator | Jun 2000 |
| 33389 | Wingrove Operating, LLC | Odessa, TX 79760 | Oil Operator | Feb 2026 |
| 33390 | Wingrove Well Service, Inc. | Lueders, TX 79533 | Oil & Gas Operator | Nov 2023 |
| 33391 | Winkler L W & Son | Denver, CO 80222 | Oil & Gas Operator | Dec 2001 |
| 33392 | Winn Exploration Co., Inc. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Feb 2026 |
| 33393 | Winn Operating, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Feb 2026 |
| 33394 | Winney Construction Company | Forks, WA 98331-0801 | Oil & Gas Operator | Jan 2013 |
| 33395 | Winona Oil & Gas | | Oil & Gas Operator | Sep 1996 |
| 33396 | Winright Resources Operating,LLC | Houston, TX 77007 | Oil & Gas Operator | Feb 2026 |
| 33397 | Winslow Operating Company, LLC | Austin, TX 78737 | Oil & Gas Operator | Feb 2026 |
| 33398 | Winslow, Harry C. | San Antonio, TX 78217 | Oil & Gas Operator | Feb 2026 |
| 33399 | Winston Land & Cattle Co., Inc. | Lufkin, TX 75901 | Oil & Gas Operator | Feb 2001 |
| 33400 | Winston Land & Cattle I, LTD. | Lufkin, TX 75902 | Oil & Gas Operator | Nov 2014 |