| 32101 | Winbeau Oil & Gas Co. | | Oil & Gas Operator | Oct 2013 |
| 32102 | Winchester Energy Operating Co. | Austin, TX 78746 | Oil & Gas Operator | Jul 2025 |
| 32103 | Winchester Energy, LLC | Houston, TX 77056 | Oil & Gas Operator | Jul 2025 |
| 32104 | Winchester Exploration, Inc. | Arlington, TX 76013 | Oil & Gas Operator | Aug 2003 |
| 32105 | Winchester Oil & Gas LLC | Rockdale, TX 76567 | Oil Operator | Jul 2025 |
| 32106 | Winchester Oil Corporation | Maysville, OK 73057-0600 | Oil & Gas Operator | Apr 2010 |
| 32107 | Winchester Operating, Inc. | Bryan, TX 77808 | Oil & Gas Operator | Aug 2001 |
| 32108 | Winchester Production Co., LTD. | Shreveport, LA 71129 | Oil & Gas Operator | Sep 2008 |
| 32109 | Winchester Production Company | Shreveport, LA 71129 | Oil & Gas Operator | Nov 2008 |
| 32110 | Winco Of Kansas | Kechi, KS 67067 | Oil Operator | Aug 1982 |
| 32111 | Winco Oil Inc. | Abilene, TX 79608 | Oil & Gas Operator | Jul 2025 |
| 32112 | Winco Petroleum Company | Richardson, TX 75080 | Oil & Gas Operator | Jan 2003 |
| 32113 | Winco Petroleum Corp | Denver, CO 80202 | Oil & Gas Operator | Dec 1997 |
| 32114 | Wind River Energy Commission | | Oil Operator | Apr 2025 |
| 32115 | Wind River Energy, Inc. | Midland, TX 79710 | Oil & Gas Operator | Jul 2025 |
| 32116 | Wind River Exploration | Powell, WY 82435 | Oil & Gas Operator | Jun 2025 |
| 32117 | Wind River Exploration Inc | Sewickley, PA 15143 | Oil & Gas Operator | Mar 2025 |
| 32118 | Wind River Oil & Gas, Inc. | Jackson, WY 83002 | Oil Operator | Aug 2000 |
| 32119 | Wind River Resources Corp | Park City, UT 84098 | Oil & Gas Operator | Jan 2020 |
| 32120 | Wind River Resources Inc | Tulsa, OK 74136-6381 | Oil & Gas Operator | Jun 2010 |
| 32121 | Winder Oil Company | | Oil Operator | Mar 2025 |
| 32122 | Windfall Oil & Gas Inc | Falls Creek, PA 15840-2617 | Gas Operator | Dec 2024 |
| 32123 | Windfohr Oil Company | | Oil & Gas Operator | May 1980 |
| 32124 | Windgate Oil Com | | Oil Operator | Jul 1985 |
| 32125 | Windham Oil Company | | Oil & Gas Operator | Dec 1987 |
| 32126 | Windham Oil Corp. | | Oil & Gas Operator | Dec 2024 |
| 32127 | Windham Resources | Abilene, TX 79608 | Oil & Gas Operator | Jul 2025 |
| 32128 | Windham Resources, Inc. | Tuscola, TX 79562 | Oil & Gas Operator | Feb 2004 |
| 32129 | Windham, L. E. | Rankin, TX 79778 | Oil & Gas Operator | Dec 1996 |
| 32130 | Windham, L.E. Estate Of | Midland, TX 79702 | Oil & Gas Operator | Mar 2012 |
| 32131 | Windler-Doudna, A General Partnership | | Oil Operator | Sep 2000 |
| 32132 | Windmill Oil Company | Austin, TX 78747 | Oil & Gas Operator | Mar 2008 |
| 32133 | Windmill Windy Acres Farm, LLC | Penn Yan, NY 14527 | Gas Operator | Dec 2024 |
| 32134 | Window Operating Co., The | Coleman, TX 76834 | Oil & Gas Operator | Jul 2025 |
| 32135 | Windridge Operating LLC | | Oil & Gas Operator | May 2025 |
| 32136 | Windrush Operating Co., L.L.C. | Longville, LA 70652 | Oil & Gas Operator | Jul 2025 |
| 32137 | Windrush Operating Company | | Oil & Gas Operator | Jan 2009 |
| 32138 | Winds Exploration And Production, LLC | Houston, TX 77032 | Gas Operator | Jan 2024 |
| 32139 | Windsor Associates Inc | Fairlawn, OH 44333-4006 | Oil & Gas Operator | Dec 2012 |
| 32140 | Windsor Energy Group LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Aug 2021 |
| 32141 | Windsor Energy Inc | Dallas, TX 75204-3199 | Oil & Gas Operator | May 2006 |
| 32142 | Windsor Exploration Company | Dallas, TX 75204 | Oil & Gas Operator | Jan 1994 |
| 32143 | Windsor Gas Corporation | | Oil & Gas Operator | Aug 1989 |
| 32144 | Windsor Permian LLC | Midland, TX 79701 | Oil & Gas Operator | Jun 2012 |
| 32145 | Windward Development LLC | Tulsa, OK 74136-7007 | Oil & Gas Operator | Jul 2019 |
| 32146 | Windy Cove Energy II, LLC | Houston, TX 77079 | Oil & Gas Operator | Sep 2020 |
| 32147 | Wineinger Dickie L Dba Royal Petroleum Co | Iowa Park, TX 76367 | Oil Operator | Nov 2022 |
| 32148 | Wineland Oil - LLC | Hays, KS 67601 | Oil Operator | Mar 2025 |
| 32149 | Wineridge Inc. | Austin, TX 78747 | Oil Operator | Jul 2025 |
| 32150 | Winfall Energy Inc N V | Vandergrift, PA 15690-2001 | Oil & Gas Operator | Dec 2024 |
| 32151 | Winfield Operating Company | Dallas, TX 75214 | Oil & Gas Operator | Jul 2025 |
| 32152 | Winfrey Oil Co., Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | May 2016 |
| 32153 | Wing Corporation | Houston, TX 77002 | Oil & Gas Operator | Jun 2000 |
| 32154 | Wingrove Operating, LLC | Odessa, TX 79760 | Oil Operator | Jul 2025 |
| 32155 | Wingrove Well Service, Inc. | Lueders, TX 79533 | Oil & Gas Operator | Nov 2023 |
| 32156 | Winkler L W & Son | Denver, CO 80222 | Oil & Gas Operator | Dec 2001 |
| 32157 | Winn Exploration Co., Inc. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Jul 2025 |
| 32158 | Winn Operating, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Jul 2025 |
| 32159 | Winney Construction Company | Forks, WA 98331-0801 | Oil & Gas Operator | Jan 2013 |
| 32160 | Winona Oil & Gas | | Oil & Gas Operator | Sep 1996 |
| 32161 | Winright Resources Operating,LLC | Houston, TX 77007 | Oil & Gas Operator | Jul 2025 |
| 32162 | Winslow Operating Company, LLC | Austin, TX 78737 | Oil & Gas Operator | Jul 2025 |
| 32163 | Winslow Resources Inc | | Oil & Gas Operator | May 2002 |
| 32164 | Winslow, Harry C. | San Antonio, TX 78217 | Oil & Gas Operator | Jul 2025 |
| 32165 | Winston Land & Cattle Co., Inc. | Lufkin, TX 75901 | Oil & Gas Operator | Feb 2001 |
| 32166 | Winston Land & Cattle I, LTD. | Lufkin, TX 75902 | Oil & Gas Operator | Nov 2014 |
| 32167 | Winston Oil Co | Marietta, OH 45750 | Oil & Gas Operator | Mar 2025 |
| 32168 | Winter Ridge Energy LLC | Denver, CO 80202 | Oil & Gas Operator | Sep 2011 |
| 32169 | Winter'S Railroad Service, Inc | North Collins, NY 14111 | Gas Operator | Dec 2024 |
| 32170 | Winterfield Corp | | Oil Operator | Nov 2024 |
| 32171 | Winterscheid Oil, LLC | Olpe, KS 66865 | Oil Operator | Dec 2019 |
| 32172 | Wintershall Corporation | | Oil & Gas Operator | Oct 1989 |
| 32173 | Wintershall Oil | | Oil Operator | Sep 1985 |
| 32174 | Wintershall Oil & Gas Co | | Oil & Gas Operator | Feb 1980 |
| 32175 | Wintershall Oil & Gas Corp | Houston, TX 77027 | Oil & Gas Operator | Jul 1989 |
| 32176 | Winwell, L.L.C. | Shreveport, LA 71101 | Oil & Gas Operator | Dec 2007 |
| 32177 | Winzeler Oil Company | Oklahoma City, OK 73112 | Oil & Gas Operator | May 2013 |
| 32178 | Wirtz Oil, LLC | Ellinwood, KS 67526 | Oil & Gas Operator | Mar 2025 |
| 32179 | Wischkaemper, James K. | Shamrock, TX 79079 | Oil & Gas Operator | Aug 2023 |
| 32180 | Wischkaemper, Kenneth | Shamrock, TX 79079 | Oil & Gas Operator | Jul 2025 |
| 32181 | Wise Exploration | Perrin, TX 76486 | Oil & Gas Operator | Jul 2025 |
| 32182 | Wise James W | Okmulgee, OK 74447 | Oil & Gas Operator | Oct 1996 |
| 32183 | Wise Oil & Gas Company LLC | Shawnee, OK 74801-8507 | Oil & Gas Operator | Feb 2024 |
| 32184 | Wise Production Company | Bowie, TX 76230 | Oil & Gas Operator | Jul 2025 |
| 32185 | Wise Star Energy, LLC | Port Aransas, TX 78373 | Oil & Gas Operator | Jul 2025 |
| 32186 | Wise Supply Company | Bowie, TX 76230 | Oil & Gas Operator | Jul 2025 |
| 32187 | Wise Well Service | Bowie, TX 76230 | Oil & Gas Operator | Jul 2017 |
| 32188 | Wise* Wayne L | | Oil & Gas Operator | Dec 2023 |
| 32189 | Wise, Rodney J. | Anna, OH 45302 | Oil Operator | Jul 2011 |
| 32190 | Wiseman, B. W., Jr. | Midland, TX 79702 | Oil & Gas Operator | Dec 2002 |
| 32191 | Wisenbaker Production Company | Tyler, TX 75702 | Oil & Gas Operator | Oct 2011 |
| 32192 | Wiser Oil Co | Denver, CO 80202 | Oil & Gas Operator | Dec 2023 |
| 32193 | Wishbone Oil & Gas | Noble, OK 73068 | Oil & Gas Operator | Mar 2007 |
| 32194 | Wishbone Texas Operating Co LLC | Houston, TX 77064 | Oil & Gas Operator | Jul 2019 |
| 32195 | Wisley Robert | | Oil & Gas Operator | Dec 1994 |
| 32196 | Wistrom | | Oil Operator | Aug 2019 |
| 32197 | Witco Corporation | Newark, OH 43055 | Oil & Gas Operator | Dec 1995 |
| 32198 | Witcraft, Jimmy D. | Pawhuska, OK 74056 | Oil & Gas Operator | Jun 1987 |
| 32199 | Withers, Lawrence | Copeland, KS 67837 | Gas Operator | Nov 1996 |
| 32200 | Witherspoon Joe A | Bells, TX 75414 | Oil Operator | Aug 2024 |