| 1301 | Winwell, L.L.C. | Shreveport, LA 71101 | Oil & Gas Operator | Dec 2007 |
| 1302 | Winzeler Oil Company | Oklahoma City, OK 73112 | Oil & Gas Operator | May 2013 |
| 1303 | Wirtz Oil, LLC | Ellinwood, KS 67526 | Oil & Gas Operator | Sep 2025 |
| 1304 | Wischkaemper, James K. | Shamrock, TX 79079 | Oil & Gas Operator | Aug 2023 |
| 1305 | Wischkaemper, Kenneth | Shamrock, TX 79079 | Oil & Gas Operator | Feb 2026 |
| 1306 | Wise Exploration | Perrin, TX 76486 | Oil & Gas Operator | Feb 2026 |
| 1307 | Wise James W | Okmulgee, OK 74447 | Oil & Gas Operator | Oct 1996 |
| 1308 | Wise Oil & Gas Company LLC | Shawnee, OK 74801-8507 | Oil & Gas Operator | Feb 2024 |
| 1309 | Wise Production Company | Bowie, TX 76230 | Oil & Gas Operator | Feb 2026 |
| 1310 | Wise Star Energy, LLC | Port Aransas, TX 78373 | Oil & Gas Operator | Feb 2026 |
| 1311 | Wise Supply Company | Bowie, TX 76230 | Oil & Gas Operator | Feb 2026 |
| 1312 | Wise Well Service | Bowie, TX 76230 | Oil & Gas Operator | Jul 2017 |
| 1313 | Wise* Wayne L | | Oil & Gas Operator | Dec 2023 |
| 1314 | Wise, Rodney J. | Anna, OH 45302 | Oil Operator | Jul 2011 |
| 1315 | Wiseman, B. W., Jr. | Midland, TX 79702 | Oil & Gas Operator | Dec 2002 |
| 1316 | Wisenbaker Production Company | Tyler, TX 75702 | Oil & Gas Operator | Oct 2011 |
| 1317 | Wiser Oil Co | Denver, CO 80202 | Oil & Gas Operator | Dec 2023 |
| 1318 | Wishbone Oil & Gas | Noble, OK 73068 | Oil & Gas Operator | Mar 2007 |
| 1319 | Wishbone Texas Operating Co LLC | Houston, TX 77064 | Oil & Gas Operator | Jul 2019 |
| 1320 | Wisley Robert | | Oil & Gas Operator | Dec 1994 |
| 1321 | Wistrom | | Oil Operator | Aug 2019 |
| 1322 | Witco Corporation | Newark, OH 43055 | Oil & Gas Operator | Dec 1995 |
| 1323 | Witcraft, Jimmy D. | Pawhuska, OK 74056 | Oil & Gas Operator | Jun 1987 |
| 1324 | Withers, Lawrence | Copeland, KS 67837 | Gas Operator | Nov 1996 |
| 1325 | Witherspoon Joe A | Bells, TX 75414 | Oil Operator | Jul 2025 |
| 1326 | Witherspoon Oil Co | Iowa Park, TX 76367 | Oil & Gas Operator | Feb 2026 |
| 1327 | Withrow Engineering, Inc. | Richardson, TX 75080 | Oil & Gas Operator | Mar 2000 |
| 1328 | Withrow Oil Company Inc | Yukon, OK 73099-7712 | Oil & Gas Operator | Apr 2021 |
| 1329 | Witkowski, Dave | Hamburg, NY 14075 | Oil & Gas Operator | Dec 2024 |
| 1330 | Witlicki Richard | Jefferson, OH 44047 | Oil & Gas Operator | Dec 2015 |
| 1331 | Witt Oil Production, Inc. | | Oil & Gas Operator | Nov 1984 |
| 1332 | Witter, Terry L. | Alma, NY 14708 | Oil Operator | Dec 2024 |
| 1333 | Wittmeyer, Richard J. & Cynthia L. | Springville, NY 14141 | Gas Operator | Dec 2024 |
| 1334 | Witty Thomas E | Enid, OK 73703 | Oil & Gas Operator | Mar 2008 |
| 1335 | Witzel, Robert R. | Dansville, NY 14437 | Gas Operator | Dec 2024 |
| 1336 | Wixson R J Compa | | Oil Operator | Jan 1989 |
| 1337 | Wixson, R. J., Co. | Wichita, KS 67278 | Oil Operator | Oct 2002 |
| 1338 | WJ South Waskom #1, LLC | Dallas, TX 75205 | Oil Operator | Feb 2026 |
| 1339 | WJC, Inc. | Post, TX 79356 | Oil & Gas Operator | Feb 2026 |
| 1340 | WJH Energy, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Feb 2026 |
| 1341 | WJM Oil Inc | Shawnee, OK 74804-3203 | Oil & Gas Operator | Jan 2013 |
| 1342 | WJR Production LLC | Fort Worth, TX 76177 | Oil Operator | Feb 2026 |
| 1343 | WJW Operating Co.,LLC | Austin, TX 78738 | Oil & Gas Operator | May 2002 |
| 1344 | Wle, Inc. | | Oil & Gas Operator | Feb 2012 |
| 1345 | WLH Production LLC | Gainesville, TX 76240 | Oil Operator | Feb 2026 |
| 1346 | WLP Oil Inc | Gillette, WY 82717 | Oil & Gas Operator | Dec 2018 |
| 1347 | WLS Corporation | | Oil Operator | Aug 2009 |
| 1348 | WLS, Inc | | Oil & Gas Operator | Nov 2025 |
| 1349 | WLW Oil & Gas LLC | Kingfisher, OK 73750 | Oil & Gas Operator | Dec 2025 |
| 1350 | WM B Hill Production Co | | Oil Operator | Jun 1991 |
| 1351 | WM Energy LLC | Asher, OK 74826 | Oil & Gas Operator | Nov 2025 |
| 1352 | WM KS Energy Resources LLC | Shreveport, LA 71101 | Oil & Gas Operator | Nov 2019 |
| 1353 | WM Oil & Gas Inc | Canton, OH 44721 | Oil & Gas Operator | Dec 2018 |
| 1354 | WM Wild Wolf Production LLC | Albany, TX 76430 | Oil Operator | Feb 2026 |
| 1355 | WM. H. Brayton Trust | | Oil & Gas Operator | Dec 2000 |
| 1356 | WM. H. Kenny Consultants, LTD. | | Oil & Gas Operator | Nov 1991 |
| 1357 | WM. Herbert Hunt TR.Est. | | Oil & Gas Operator | Oct 1992 |
| 1358 | WM. Inabnet | | Gas Operator | Nov 2024 |
| 1359 | WM. T. Burton Industries, Inc. | | Oil & Gas Operator | Apr 1988 |
| 1360 | WM. Zuhone, Jr. | | Oil & Gas Operator | Aug 1988 |
| 1361 | Wme Yates LLC | | Gas Operator | Dec 2023 |
| 1362 | Wmo Oil, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Feb 2026 |
| 1363 | WMS Corporation | Corsicana, TX 75110 | Oil & Gas Operator | Feb 2026 |
| 1364 | WMS Oil Company | Post, TX 79356 | Oil & Gas Operator | May 2019 |
| 1365 | WN Operating Inc | Okmulgee, OK 74447 | Oil & Gas Operator | Nov 2025 |
| 1366 | WNR Enterprises', Inc. | | Oil & Gas Operator | Feb 1997 |
| 1367 | WNT Operating Inc | Dover, OH 44622 | Oil & Gas Operator | Dec 2001 |
| 1368 | Wnu Energy LLC | Pinedale, WY 82941 | Oil & Gas Operator | Jan 2026 |
| 1369 | Wo Operating Company | Tulsa, OK 74159 | Oil & Gas Operator | Feb 2026 |
| 1370 | Woco La, LLC | | Oil Operator | Jan 2025 |
| 1371 | Woco, Inc. | Wichita, KS 67214 | Oil Operator | Dec 2009 |
| 1372 | Wofford, C. J. | El Campo, TX 77437 | Oil & Gas Operator | Feb 2026 |
| 1373 | Wohlford Properties Inc | Barling, AR 72923 | Gas Operator | Apr 2022 |
| 1374 | Wolco Energy, Inc. | Dallas, TX 75220 | Oil & Gas Operator | May 1997 |
| 1375 | Wolcott, Ed Operating | Dallas, TX 75205 | Oil & Gas Operator | Oct 2000 |
| 1376 | Wold Energy Partners LLC | Denver, CO 80202 | Oil & Gas Operator | Feb 2022 |
| 1377 | Wold John S | | Gas Operator | Feb 1991 |
| 1378 | Wold Oil & Gas | | Oil & Gas Operator | Oct 1996 |
| 1379 | Wold Oil Properties Inc | Denver, CO 80203 | Oil & Gas Operator | Feb 2018 |
| 1380 | Wolf Creek Enterprises Inc | Stillwater, OK 74074-6965 | Oil Operator | Apr 2009 |
| 1381 | Wolf Creek Exploration Company | Amarillo, TX 79159 | Oil & Gas Operator | Aug 2000 |
| 1382 | Wolf Energy | Midland, TX 79701 | Oil & Gas Operator | Jan 1995 |
| 1383 | Wolf Energy Company | | Oil & Gas Operator | Dec 1985 |
| 1384 | Wolf Energy, Inc. | Midland, TX 79701 | Oil & Gas Operator | Oct 2021 |
| 1385 | Wolf Howard Lee | Burneyville, OK 73430-9617 | Oil & Gas Operator | Jun 2000 |
| 1386 | Wolf Production, Inc. | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 1387 | Wolf Run Mining LLC | | Oil & Gas Operator | Dec 2021 |
| 1388 | Wolf, Gene | Windthorst, TX 76389 | Oil & Gas Operator | Apr 2003 |
| 1389 | Wolf, Gene L.L.C. | Windthorst, TX 76389 | Oil & Gas Operator | Feb 2026 |
| 1390 | Wolfcamp Energy, LLC | Midland, TX 79702 | Gas Operator | Feb 2026 |
| 1391 | Wolfcamp Oil & Gas, Inc. | Odessa, TX 79764 | Oil & Gas Operator | Dec 2004 |
| 1392 | Wolfe Energy, LLC | | Oil Operator | Sep 2025 |
| 1393 | Wolfe Jimmy Ray | | Oil Operator | Nov 1995 |
| 1394 | Wolfe Oil | Bremen, OH 43107 | Oil Operator | Dec 2024 |
| 1395 | Wolfe Oil Company | Stockdale, TX 78160 | Oil Operator | Feb 2026 |
| 1396 | Wolfe, Jimmy Ray, Deceased | Peru, KS 67360 | Oil Operator | Sep 2009 |
| 1397 | Wolfe, Leslie | Peru, KS 67360 | Oil Operator | Dec 2014 |
| 1398 | Wolfe, Ray | Longton, KS 67352 | Oil Operator | Jul 1988 |
| 1399 | Wolford Ben & Bonnie | Frazeysburg, OH 43822 | Oil Operator | Dec 2016 |
| 1400 | Wolfson Oil Co. | Dallas, TX 75230 | Oil & Gas Operator | Sep 1999 |