| 201 | Whitmar Natural Resources Co | Tulsa, OK 74136-9998 | Oil & Gas Operator | Jun 2004 |
| 202 | Whitmar Operating Company | Tulsa, OK 74103-3515 | Oil & Gas Operator | Apr 2009 |
| 203 | Whittington Curtis | Stonewall, OK 74871-0482 | Oil & Gas Operator | Feb 2011 |
| 204 | Whomble O O | Morris, OK 74445 | Oil Operator | Jun 2021 |
| 205 | WHR Corporation | | Oil & Gas Operator | Jul 2014 |
| 206 | Wible Limited Liability Co | Edmond, OK 73012 | Oil Operator | Oct 2024 |
| 207 | Wicklund Petroleum Corporation | Naples, FL 34108-0108 | Oil & Gas Operator | Dec 2019 |
| 208 | Wieck Oil Company LLC | Cromwell, OK 74859 | Oil Operator | Aug 2014 |
| 209 | Wikel, David W | | Oil Operator | Oct 2025 |
| 210 | Wil-MC Oil Corporation The | Irving, TX 75015-2510 | Oil & Gas Operator | Mar 1999 |
| 211 | Wil-Ron Inc | Lucien, OK 73757-9710 | Oil & Gas Operator | Oct 2025 |
| 212 | Wilco Oil & Gas Corporation | Oklahoma City, OK 73159-6229 | Oil & Gas Operator | Dec 2023 |
| 213 | Wilcox Oil Company | Rule, TX 79547 | Oil & Gas Operator | Aug 2008 |
| 214 | Wilcox Pipe & Supply Co | Oklahoma City, OK 73189 | Oil & Gas Operator | May 2006 |
| 215 | Wilcoxson Brothers | Terral, OK 73569 | Oil Operator | Mar 2008 |
| 216 | Wild Outdoors Oil LLC | Duncan, OK 73533 | Oil & Gas Operator | Nov 2025 |
| 217 | Wildcat Cement Co. | Shamrock, TX 79079 | Oil & Gas Operator | May 2015 |
| 218 | Wildfire Oil & Gas Inc | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2014 |
| 219 | Wildhorse Oil & Gas Corporation | Ardmore, OK 73402 | Oil & Gas Operator | May 2019 |
| 220 | Wildhorse Operating Company | Ardmore, OK 73402 | Oil & Gas Operator | Dec 2025 |
| 221 | Wildwood Operating LLC | Hennessey, OK 73742-7711 | Oil & Gas Operator | Nov 2025 |
| 222 | Wilkins L L E & O Company | Shawnee, OK 74801 | Oil & Gas Operator | Aug 2018 |
| 223 | Wilkinson George R | St Augustine, FL 32080-5352 | Oil & Gas Operator | Jun 2011 |
| 224 | Wilkinson Oil & Gas LLC | Duncan, OK 73533-2048 | Oil Operator | Nov 2025 |
| 225 | Wilkison Richard W | Oklahoma City, OK 73107 | Oil Operator | Mar 2011 |
| 226 | Will Energy Corporation | Dallas, TX 75201 | Oil & Gas Operator | Oct 2025 |
| 227 | Willa Mae Overman LLC | Ponca City, OK 74601-9451 | Oil & Gas Operator | Aug 2023 |
| 228 | William Jefferson Turner | Marlow, OK 73055 | Oil & Gas Operator | Apr 2007 |
| 229 | Williams Brothers Engineering Company | Tulsa, OK 74134-5885 | Oil & Gas Operator | May 2013 |
| 230 | Williams Dale | Konawa, OK 74849-9211 | Oil Operator | Oct 2025 |
| 231 | Williams Dale And Dorothy Family Trust | Maud, OK 74854-2011 | Oil & Gas Operator | Oct 2025 |
| 232 | Williams Doyle Dba BCF Gas | Tulsa, OK 74114-7099 | Oil & Gas Operator | Jul 2023 |
| 233 | Williams Jack W | Ardmore, OK 73401-4726 | Oil Operator | Feb 2017 |
| 234 | Williams Kidd Drilling Corp | Claremore, OK 74017-0846 | Oil Operator | Jun 2013 |
| 235 | Williams M H | Red Rock, OK 74651-0311 | Oil & Gas Operator | Jun 2023 |
| 236 | Williams Operating Company LLC | Comanche, OK 73529 | Oil Operator | Nov 2025 |
| 237 | Williams Petroleum Company, Inc. | Burkburnett, TX 76354 | Oil & Gas Operator | Dec 2025 |
| 238 | Williams Refractories Inc | Cushing, OK 74023 | Oil & Gas Operator | Feb 2015 |
| 239 | Williams Reid Oil Co | Dallas, TX 75234 | Oil & Gas Operator | Oct 2025 |
| 240 | Williams Roger F | Tulsa, OK 74152-0951 | Oil & Gas Operator | May 2013 |
| 241 | Williams Royce S | Healdton, OK 73438-0306 | Oil & Gas Operator | Apr 2014 |
| 242 | Williams, Clayton Energy, Inc. | Houston, TX 77070 | Oil & Gas Operator | Dec 2025 |
| 243 | Williams, Doyle | | Oil & Gas Operator | Oct 2025 |
| 244 | Williamson Gregory L | Skiatook, OK 74070-0028 | Oil & Gas Operator | Mar 2015 |
| 245 | Williamson Ozella | Skiatook, OK 74070 | Oil Operator | Aug 2013 |
| 246 | Williford Energy Company | Tulsa, OK 74135 | Oil & Gas Operator | Dec 2025 |
| 247 | Williford Petroleum, L.L.C. | Green CV SPGS, FL 32043 | Oil & Gas Operator | Dec 2025 |
| 248 | Williford Resources LLC | Tulsa, OK 74136-1020 | Oil & Gas Operator | Nov 2025 |
| 249 | Wilshire Enterprises Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2015 |
| 250 | Wilshire Oil LLC | Oklahoma City, OK 73116 | Oil & Gas Operator | Oct 2025 |
| 251 | Wilson Allen Dewayne | Okemah, OK 74859 | Oil & Gas Operator | Jun 2025 |
| 252 | Wilson Charles R | Durant, OK 74701 | Oil Operator | Sep 2025 |
| 253 | Wilson Claude | Loco, OK 73442-9404 | Oil & Gas Operator | Oct 2025 |
| 254 | Wilson H Drew | Collinsville, OK 74021 | Oil Operator | Oct 2025 |
| 255 | Wilson Operating Company LLC | Tulsa, OK 74105 | Oil & Gas Operator | Dec 2025 |
| 256 | Wilson Well Service | Loco, OK 73442-0114 | Oil & Gas Operator | Mar 2018 |
| 257 | Wilson, Clay S | | Oil Operator | Oct 2025 |
| 258 | Wilson, W R | | Oil & Gas Operator | Oct 2025 |
| 259 | Wilson, Warren C | | Oil Operator | Oct 2025 |
| 260 | Wimberley James A | Dallas, TX 75229-6180 | Oil & Gas Operator | Nov 2014 |
| 261 | Winchester Oil Corporation | Maysville, OK 73057-0600 | Oil & Gas Operator | Apr 2010 |
| 262 | Wind River Exploration Inc | Sewickley, PA 15143 | Oil & Gas Operator | Sep 2025 |
| 263 | Wind River Resources Inc | Tulsa, OK 74136-6381 | Oil & Gas Operator | Jun 2010 |
| 264 | Windsor Energy Group LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Aug 2021 |
| 265 | Windsor Energy Inc | Dallas, TX 75204-3199 | Oil & Gas Operator | May 2006 |
| 266 | Windward Development LLC | Tulsa, OK 74136-7007 | Oil & Gas Operator | Jul 2019 |
| 267 | Wineinger Dickie L Dba Royal Petroleum Co | Iowa Park, TX 76367 | Oil Operator | Nov 2022 |
| 268 | Winney Construction Company | Forks, WA 98331-0801 | Oil & Gas Operator | Jan 2013 |
| 269 | Winston Oil Co | Marietta, OH 45750 | Oil & Gas Operator | Oct 2025 |
| 270 | Winzeler Oil Company | Oklahoma City, OK 73112 | Oil & Gas Operator | May 2013 |
| 271 | Wise James W | Okmulgee, OK 74447 | Oil & Gas Operator | Oct 1996 |
| 272 | Wise Oil & Gas Company LLC | Shawnee, OK 74801-8507 | Oil & Gas Operator | Feb 2024 |
| 273 | Wiser Oil Co | Denver, CO 80202 | Oil & Gas Operator | Dec 2023 |
| 274 | Wishbone Oil & Gas | Noble, OK 73068 | Oil & Gas Operator | Mar 2007 |
| 275 | Witherspoon Joe A | Bells, TX 75414 | Oil Operator | Jul 2025 |
| 276 | Withrow Oil Company Inc | Yukon, OK 73099-7712 | Oil & Gas Operator | Apr 2021 |
| 277 | Witty Thomas E | Enid, OK 73703 | Oil & Gas Operator | Mar 2008 |
| 278 | WJM Oil Inc | Shawnee, OK 74804-3203 | Oil & Gas Operator | Jan 2013 |
| 279 | WLH Production LLC | Gainesville, TX 76240 | Oil Operator | Dec 2025 |
| 280 | WLW Oil & Gas LLC | Kingfisher, OK 73750 | Oil & Gas Operator | Nov 2025 |
| 281 | WM Bret Hall Energy LLC | Ratliff City, OK 73481 | Oil Operator | Oct 2025 |
| 282 | WM Energy LLC | Asher, OK 74826 | Oil & Gas Operator | Oct 2025 |
| 283 | WM KS Energy Resources LLC | Shreveport, LA 71101 | Oil & Gas Operator | Nov 2019 |
| 284 | WN Operating Inc | Okmulgee, OK 74447 | Oil & Gas Operator | Oct 2025 |
| 285 | Wohlford Properties Inc | Barling, AR 72923 | Gas Operator | Apr 2022 |
| 286 | Wolf Creek Enterprises Inc | Stillwater, OK 74074-6965 | Oil Operator | Apr 2009 |
| 287 | Wolf Howard Lee | Burneyville, OK 73430-9617 | Oil & Gas Operator | Jun 2000 |
| 288 | Wolverine Exploration Company | Houston, TX 77002 | Oil & Gas Operator | May 2019 |
| 289 | Wolverine Petroleum Corp | Holdenville, OK 74848 | Oil & Gas Operator | Jul 1999 |
| 290 | Wonee Oil Company | Healdton, OK 73438 | Oil Operator | Jul 1996 |
| 291 | Wood Fay C Estate | Enid, OK 73703 | Oil & Gas Operator | Jun 2013 |
| 292 | Wood Oil Company | Tulsa, OK 74103 | Gas Operator | Oct 1997 |
| 293 | Woodland Operating LLC | Rio VIsta, TX 76093-0010 | Oil & Gas Operator | Aug 2025 |
| 294 | Woods Henry Dba Woods Oil Company | Madill, OK 73446 | Oil Operator | Oct 2025 |
| 295 | Woods Oil Co. | Burkburnett, TX 76354 | Oil & Gas Operator | Dec 2025 |
| 296 | Woods Petroleum Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Mar 2015 |
| 297 | Woodward Disposal Company Inc | Woodward, OK 73801-3234 | Oil & Gas Operator | Sep 2013 |
| 298 | Woodward Iodine Corporation | Woodward, OK 73801 | Oil & Gas Operator | Nov 2025 |
| 299 | Woolever Stephen L | Tulsa, OK 74108-2303 | Oil Operator | Jul 2024 |
| 300 | Woolsey Petroleum Corporation | Wichita, KS 67202 | Oil & Gas Operator | Sep 2025 |