| 301 | Woodland Operating LLC | Rio VIsta, TX 76093-0010 | Oil & Gas Operator | Aug 2025 |
| 302 | Woods Henry Dba Woods Oil Company | Madill, OK 73446 | Oil Operator | Oct 2025 |
| 303 | Woods Oil Co. | Burkburnett, TX 76354 | Oil & Gas Operator | Feb 2026 |
| 304 | Woods Petroleum Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Mar 2015 |
| 305 | Woodward Disposal Company Inc | Woodward, OK 73801-3234 | Oil & Gas Operator | Sep 2013 |
| 306 | Woodward Iodine Corporation | Woodward, OK 73801 | Oil & Gas Operator | Nov 2025 |
| 307 | Woolever Stephen L | Tulsa, OK 74108-2303 | Oil Operator | Jul 2024 |
| 308 | Wooley Garr Company | Yukon, OK 73099 | Oil & Gas Operator | Oct 1993 |
| 309 | Woolsey Petroleum Corporation | Wichita, KS 67202 | Oil & Gas Operator | Sep 2025 |
| 310 | Work John | Tulsa, OK 74135 | Oil Operator | Dec 1996 |
| 311 | World Oil | | Oil & Gas Operator | Nov 1998 |
| 312 | Worldwide Energy Corporation | Freer, TX 78357 | Oil & Gas Operator | Jan 1997 |
| 313 | Worstell Michael H | Collinsville, OK 74021-5918 | Oil Operator | Mar 2015 |
| 314 | Worstell Oil & Gas Company | Collinsville, OK 74021 | Oil Operator | Nov 2005 |
| 315 | Worstell Oil Co LLC | Collinsville, OK 74021-5918 | Oil Operator | Aug 2025 |
| 316 | Worthington Jack | Ramona, OK 74061 | Gas Operator | Jun 1996 |
| 317 | Worthy George Disposal Inc | Cushing, OK 74023-9523 | Oil Operator | Jan 2001 |
| 318 | WP Oil LLC | Owasso, OK 74055 | Oil Operator | Oct 2025 |
| 319 | WPX Energy Mid-Continent Co | Oklahoma City, OK 73102-5010 | Oil & Gas Operator | Apr 2016 |
| 320 | WR Oil & Gas LLC | Plano, TX 75024-3523 | Oil & Gas Operator | Oct 2025 |
| 321 | Wrather Jr J D | Beverly Hills, CA 90210-4724 | Oil & Gas Operator | Mar 1993 |
| 322 | Wright Jerry L | Crescent, OK 73028-0474 | Oil & Gas Operator | Jun 2013 |
| 323 | Wright Katherine E | Tulsa, OK 74114-1229 | Oil Operator | Sep 2019 |
| 324 | Wright Operating, Inc. | Denison, TX 75020 | Oil & Gas Operator | Feb 2026 |
| 325 | Wright Richard | Ratliff City, OK 73481-0155 | Oil & Gas Operator | Mar 2015 |
| 326 | Wright V Gerald | Cushing, OK 74023 | Oil & Gas Operator | Nov 2003 |
| 327 | Wroten Wiley Jr | Dallas, TX 75252 | Oil & Gas Operator | Jun 1994 |
| 328 | WW Park 51 LLC | Claremore, OK 74017 | Oil Operator | Sep 2025 |
| 329 | Wyant & O'Keefe | Santa Fe, NM 87501 | Oil & Gas Operator | May 2006 |
| 330 | Wyatt Rick | Pawhuska, OK 74056 | Oil & Gas Operator | Feb 2006 |
| 331 | Wyatt'S Oil Corporation | | Oil & Gas Operator | Oct 2025 |
| 332 | Wylie Henry C | Ratliff City, OK 73481-0102 | Oil Operator | May 2020 |
| 333 | Wynn-Crosby Operating LP | Dallas, TX 75201 | Oil & Gas Operator | Oct 2025 |
| 334 | Wytex Production Corporation | Fort Smith, AR 72903 | Oil & Gas Operator | Oct 2025 |