| 31201 | Wilson Well Service | Loco, OK 73442-0114 | Oil & Gas Operator | Mar 2018 |
| 31202 | Wilson Well Service Inc. | Cross Plains, TX 76443 | Oil & Gas Operator | May 2024 |
| 31203 | Wilson, Billy R. | New Braunfels, TX 78130 | Oil & Gas Operator | May 2024 |
| 31204 | Wilson, Bruce Oil Inc | Columbia, KY 42728 | Oil Operator | Dec 2022 |
| 31205 | Wilson, Charles B., Jr., Inc. | Houston, TX 77027 | Oil & Gas Operator | Apr 2000 |
| 31206 | Wilson, David A. | Longview, TX 75606 | Oil & Gas Operator | Mar 1997 |
| 31207 | Wilson, Don H., Inc. | Elkhart, TX 75839 | Oil & Gas Operator | May 2019 |
| 31208 | Wilson, E S | | Oil Operator | Dec 2022 |
| 31209 | Wilson, Jerry L. | Ranger, TX 76470 | Oil & Gas Operator | May 2024 |
| 31210 | Wilson, Olan Max | Cisco, TX 76437 | Oil & Gas Operator | May 2024 |
| 31211 | Wilson, Paul E Jr | | Oil & Gas Operator | Dec 2021 |
| 31212 | Wilson, W. Corp. | Midland, TX 79705 | Oil & Gas Operator | Mar 1999 |
| 31213 | Wilson, W.W. Jr. Properties | Abilene, TX 79605 | Oil & Gas Operator | Jul 1995 |
| 31214 | Wilson, WM. B. Exploration Inc. | Midland, TX 79701 | Oil & Gas Operator | Jan 1996 |
| 31215 | Wilson-Shab Corp. | Electra, TX 76360 | Oil & Gas Operator | May 2024 |
| 31216 | Wilton Oil Company | Dallas, TX 75206 | Oil & Gas Operator | Apr 1999 |
| 31217 | Wilton Petroleum, Inc. | Canton, KS 67428 | Oil & Gas Operator | Jan 2024 |
| 31218 | Wilton, Frank | Graham, TX 76450 | Oil & Gas Operator | Oct 2016 |
| 31219 | Wimberley Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Feb 2013 |
| 31220 | Wimberley James A | Dallas, TX 75229-6180 | Oil & Gas Operator | Nov 2014 |
| 31221 | Wimco | Dallas, TX 75229 | Oil & Gas Operator | Jul 2008 |
| 31222 | Wimsco, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Dec 1994 |
| 31223 | Wimsett Kenneth | | Oil Operator | Apr 1989 |
| 31224 | Win Oil Company | Russell, KS 67665 | Oil & Gas Operator | Jul 2021 |
| 31225 | Winbeau Oil & Gas Co. | | Oil & Gas Operator | Oct 2013 |
| 31226 | Winchester Energy Operating Co. | Austin, TX 78746 | Oil & Gas Operator | May 2024 |
| 31227 | Winchester Energy, LLC | Houston, TX 77056 | Oil & Gas Operator | May 2024 |
| 31228 | Winchester Exploration, Inc. | Arlington, TX 76013 | Oil & Gas Operator | Aug 2003 |
| 31229 | Winchester Oil & Gas LLC | Rockdale, TX 76567 | Oil Operator | May 2024 |
| 31230 | Winchester Operating, Inc. | Bryan, TX 77808 | Oil & Gas Operator | Aug 2001 |
| 31231 | Winchester Production Co., LTD. | Shreveport, LA 71129 | Oil & Gas Operator | Sep 2008 |
| 31232 | Winchester Production Company | Shreveport, LA 71129 | Oil & Gas Operator | Nov 2008 |
| 31233 | Winco Of Kansas | Kechi, KS 67067 | Oil Operator | Aug 1982 |
| 31234 | Winco Oil Inc. | Abilene, TX 79608 | Oil & Gas Operator | May 2024 |
| 31235 | Winco Petroleum Company | Richardson, TX 75080 | Oil & Gas Operator | Jan 2003 |
| 31236 | Winco Petroleum Corp | Denver, CO 80202 | Oil & Gas Operator | Dec 1997 |
| 31237 | Wind River Energy Commission | | Oil Operator | Mar 2024 |
| 31238 | Wind River Energy, Inc. | Midland, TX 79710 | Oil & Gas Operator | May 2024 |
| 31239 | Wind River Exploration | Powell, WY 82435 | Oil & Gas Operator | Mar 2024 |
| 31240 | Wind River Exploration Inc | Sewickley, PA 15143 | Oil & Gas Operator | Jan 2024 |
| 31241 | Wind River Oil & Gas, Inc. | Jackson, WY 83002 | Oil Operator | Aug 2000 |
| 31242 | Wind River Resources Corp | Park City, UT 84098 | Oil & Gas Operator | Jan 2020 |
| 31243 | Wind River Resources Inc | Tulsa, OK 74136-6381 | Oil & Gas Operator | Jun 2010 |
| 31244 | Winder Oil Company | | Oil Operator | Sep 2023 |
| 31245 | Windfohr Oil Company | | Oil & Gas Operator | May 1980 |
| 31246 | Windgate Oil Com | | Oil Operator | Jul 1985 |
| 31247 | Windham Oil Company | | Oil & Gas Operator | Dec 1987 |
| 31248 | Windham Oil Corp. | | Oil & Gas Operator | Jan 2024 |
| 31249 | Windham Resources | Abilene, TX 79608 | Oil & Gas Operator | May 2024 |
| 31250 | Windham Resources, Inc. | Tuscola, TX 79562 | Oil & Gas Operator | Feb 2004 |
| 31251 | Windham, L. E. | Rankin, TX 79778 | Oil & Gas Operator | Dec 1996 |
| 31252 | Windham, L.E. Estate Of | Midland, TX 79702 | Oil & Gas Operator | Mar 2012 |
| 31253 | Windler-Doudna, A General Partnership | | Oil Operator | Sep 2000 |
| 31254 | Windmill Oil Company | Austin, TX 78747 | Oil & Gas Operator | Mar 2008 |
| 31255 | Window Operating Co., The | Coleman, TX 76834 | Oil & Gas Operator | May 2024 |
| 31256 | Windridge Operating LLC | | Oil & Gas Operator | Mar 2024 |
| 31257 | Windrush Operating Co., L.L.C. | Longville, LA 70652 | Oil & Gas Operator | May 2024 |
| 31258 | Windrush Operating Company | | Oil & Gas Operator | Jan 2009 |
| 31259 | Winds Exploration And Production, LLC | Houston, TX 77032 | Gas Operator | Jan 2024 |
| 31260 | Windsor Associates Inc | Fairlawn, OH 44333-4006-4006 | Oil & Gas Operator | Dec 2012 |
| 31261 | Windsor Energy Group LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Aug 2021 |
| 31262 | Windsor Energy Inc | Dallas, TX 75204-3199 | Oil & Gas Operator | May 2006 |
| 31263 | Windsor Exploration Company | Dallas, TX 75204 | Oil & Gas Operator | Jan 1994 |
| 31264 | Windsor Gas Corporation | | Oil & Gas Operator | Aug 1989 |
| 31265 | Windsor Permian LLC | Midland, TX 79701 | Oil & Gas Operator | Jun 2012 |
| 31266 | Windward Development LLC | Tulsa, OK 74136-7007 | Oil & Gas Operator | Jul 2019 |
| 31267 | Windy Cove Energy II, LLC | Houston, TX 77079 | Oil & Gas Operator | Sep 2020 |
| 31268 | Wineglass Production, LLC | Ranger, TX 76470 | Oil Operator | May 2024 |
| 31269 | Wineinger Dickie L Dba Royal Petroleum Co | Iowa Park, TX 76367 | Oil Operator | Nov 2022 |
| 31270 | Wineland Oil - LLC | Hays, KS 67601 | Oil Operator | Jan 2024 |
| 31271 | Wineridge Inc. | Austin, TX 78747 | Oil Operator | May 2024 |
| 31272 | Winfall Energy Inc N V | Vandergrift, PA 15690-2001 | Oil & Gas Operator | Dec 2019 |
| 31273 | Winfield Operating Company | Dallas, TX 75214 | Oil & Gas Operator | May 2024 |
| 31274 | Winfrey Oil Co., Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | May 2016 |
| 31275 | Wing Corporation | Houston, TX 77002 | Oil & Gas Operator | Jun 2000 |
| 31276 | Wingrove Operating, LLC | Odessa, TX 79760 | Oil Operator | May 2024 |
| 31277 | Wingrove Well Service, Inc. | Lueders, TX 79533 | Oil & Gas Operator | Nov 2023 |
| 31278 | Winkler L W & Son | Denver, CO 80222 | Oil & Gas Operator | Dec 2001 |
| 31279 | Winn Exploration Co., Inc. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | May 2024 |
| 31280 | Winn Operating, LLC | Kilgore, TX 75663 | Oil & Gas Operator | May 2024 |
| 31281 | Winney Construction Company | Forks, WA 98331-0801 | Oil & Gas Operator | Jan 2013 |
| 31282 | Winona Oil & Gas | | Oil & Gas Operator | Sep 1996 |
| 31283 | Winright Resources Operating,LLC | Houston, TX 77007 | Oil & Gas Operator | May 2024 |
| 31284 | Winslow Operating Company, LLC | Austin, TX 78737 | Oil & Gas Operator | May 2024 |
| 31285 | Winslow Resources Inc | | Oil & Gas Operator | May 2002 |
| 31286 | Winslow, Harry C. | San Antonio, TX 78217 | Oil & Gas Operator | May 2024 |
| 31287 | Winston Land & Cattle Co., Inc. | Lufkin, TX 75901 | Oil & Gas Operator | Feb 2001 |
| 31288 | Winston Land & Cattle I, LTD. | Lufkin, TX 75902 | Oil & Gas Operator | Nov 2014 |
| 31289 | Winston Oil Co | Marietta, OH 45750-754-754 | Oil & Gas Operator | Feb 2024 |
| 31290 | Winter Ridge Energy LLC | Denver, CO 80202 | Oil & Gas Operator | Sep 2011 |
| 31291 | Winter'S Railroad Service, Inc | North Collins, NY 14111 | Gas Operator | Dec 2022 |
| 31292 | Winter, Marvin J. | North Collins, NY 14111 | Gas Operator | Dec 2022 |
| 31293 | Winterfield Corp | | Oil Operator | Dec 2023 |
| 31294 | Winterscheid Oil, LLC | Olpe, KS 66865 | Oil Operator | Dec 2019 |
| 31295 | Wintershall Corporation | | Oil & Gas Operator | Oct 1989 |
| 31296 | Wintershall Oil | | Oil Operator | Sep 1985 |
| 31297 | Wintershall Oil & Gas Co | | Oil & Gas Operator | Feb 1980 |
| 31298 | Wintershall Oil & Gas Corp | Houston, TX 77027 | Oil & Gas Operator | Jul 1989 |
| 31299 | Winwell, L.L.C. | Shreveport, LA 71101 | Oil & Gas Operator | Dec 2007 |
| 31300 | Wirtz Oil, LLC | Ellinwood, KS 67526 | Oil & Gas Operator | Jan 2024 |