| 1301 | Wmo Oil, LLC | Kilgore, TX 75663 | Oil Operator | Jul 2025 |
| 1302 | WMS Corporation | Corsicana, TX 75110 | Oil & Gas Operator | Jul 2025 |
| 1303 | WMS Oil Company | Post, TX 79356 | Oil & Gas Operator | May 2019 |
| 1304 | WN Operating Inc | Okmulgee, OK 74447 | Oil & Gas Operator | Apr 2025 |
| 1305 | WNR Enterprises', Inc. | | Oil & Gas Operator | Feb 1997 |
| 1306 | WNT Operating Inc | Dover, OH 44622 | Oil & Gas Operator | Dec 2001 |
| 1307 | Wnu Energy LLC | Pinedale, WY 82941 | Oil & Gas Operator | May 2025 |
| 1308 | Wo Operating Company | Tulsa, OK 74159 | Oil & Gas Operator | Jul 2025 |
| 1309 | Woco La, LLC | | Oil Operator | Jan 2025 |
| 1310 | Woco, Inc. | Wichita, KS 67214 | Oil Operator | Dec 2009 |
| 1311 | Wofford* William R | | Oil Operator | Jun 2014 |
| 1312 | Wofford, C. J. | El Campo, TX 77437 | Oil & Gas Operator | Jul 2025 |
| 1313 | Wohlford Properties Inc | Barling, AR 72923 | Gas Operator | Apr 2022 |
| 1314 | Wolco Energy, Inc. | Dallas, TX 75220 | Oil & Gas Operator | May 1997 |
| 1315 | Wolcott, Ed Operating | Dallas, TX 75205 | Oil & Gas Operator | Oct 2000 |
| 1316 | Wold Energy Partners LLC | Denver, CO 80202 | Oil & Gas Operator | Feb 2022 |
| 1317 | Wold John S | | Gas Operator | Feb 1991 |
| 1318 | Wold Oil & Gas | | Oil & Gas Operator | Oct 1996 |
| 1319 | Wold Oil Properties Inc | Denver, CO 80203 | Oil & Gas Operator | Feb 2018 |
| 1320 | Wolf Creek Enterprises Inc | Stillwater, OK 74074-6965 | Oil Operator | Apr 2009 |
| 1321 | Wolf Creek Exploration Company | Amarillo, TX 79159 | Oil & Gas Operator | Aug 2000 |
| 1322 | Wolf Energy | Midland, TX 79701 | Oil & Gas Operator | Jan 1995 |
| 1323 | Wolf Energy Company | | Oil & Gas Operator | Dec 1985 |
| 1324 | Wolf Energy, Inc. | Midland, TX 79701 | Oil & Gas Operator | Oct 2021 |
| 1325 | Wolf Howard Lee | Burneyville, OK 73430-9617 | Oil & Gas Operator | Jun 2000 |
| 1326 | Wolf Run Mining LLC | | Oil & Gas Operator | Dec 2021 |
| 1327 | Wolf, Gene | Windthorst, TX 76389 | Oil & Gas Operator | Apr 2003 |
| 1328 | Wolf, Gene L.L.C. | Windthorst, TX 76389 | Oil & Gas Operator | Jul 2025 |
| 1329 | Wolfcamp Energy, LLC | Midland, TX 79702 | Gas Operator | Jul 2025 |
| 1330 | Wolfcamp Oil & Gas, Inc. | Odessa, TX 79764 | Oil & Gas Operator | Dec 2004 |
| 1331 | Wolfe Jimmy Ray | | Oil Operator | Nov 1995 |
| 1332 | Wolfe Oil | Bremen, OH 43107 | Oil Operator | Dec 2024 |
| 1333 | Wolfe Oil Company | Stockdale, TX 78160 | Oil Operator | Jul 2025 |
| 1334 | Wolfe, Jimmy Ray, Deceased | Peru, KS 67360 | Oil Operator | Sep 2009 |
| 1335 | Wolfe, Leslie | Peru, KS 67360 | Oil Operator | Dec 2014 |
| 1336 | Wolfe, Ray | Longton, KS 67352 | Oil Operator | Jul 1988 |
| 1337 | Wolford Ben & Bonnie | Frazeysburg, OH 43822 | Oil Operator | Dec 2016 |
| 1338 | Wolfson Oil Co. | Dallas, TX 75230 | Oil & Gas Operator | Sep 1999 |
| 1339 | Wolfson, I. J. | Wichita Falls, TX 76301 | Oil & Gas Operator | Apr 2002 |
| 1340 | Wollard-Abbott Crude, A General Partnership | Parker, KS 66072 | Oil Operator | May 2008 |
| 1341 | Wolsey Oil Inc. | Bowie, TX 76230 | Oil & Gas Operator | Oct 2013 |
| 1342 | Wolsey Well Service, Inc. | Windthorst, TX 76389 | Oil & Gas Operator | Jul 2006 |
| 1343 | Wolsey Well Service, L.P. | Bowie, TX 76230 | Oil & Gas Operator | Jun 2014 |
| 1344 | Wolverine Environmental Production Inc | | Oil & Gas Operator | Sep 2000 |
| 1345 | Wolverine Exploration Company | Houston, TX 77002 | Oil & Gas Operator | May 2019 |
| 1346 | Wolverine Gas & Oil Company Of Utah, LLC | Grand Rapids, MI 49503-2616 | Oil & Gas Operator | May 2025 |
| 1347 | Wolverine Gas And Oil Company Of Michigan LLC | | Oil & Gas Operator | May 2025 |
| 1348 | Wolverine Operations LLC | Buffalo, WY 82834 | Gas Operator | Oct 2008 |
| 1349 | Wolverine Petroleum Corp | Holdenville, OK 74848 | Oil & Gas Operator | Jul 1999 |
| 1350 | Wolverine Resources LLC | | Oil & Gas Operator | Jan 2024 |
| 1351 | Womack & Nelson | | Gas Operator | Feb 1987 |
| 1352 | Womack & Price | | Oil & Gas Operator | Oct 1990 |
| 1353 | Womack Energy, Inc. | Houston, TX 77057 | Oil & Gas Operator | Nov 2024 |
| 1354 | Womack Operating, LLC. | Houston, TX 77057 | Oil & Gas Operator | Jul 2025 |
| 1355 | Womack Prod Co. | | Oil Operator | Feb 1996 |
| 1356 | Womelsdorf Oil | Welda, KS 66091 | Oil Operator | Apr 1999 |
| 1357 | Wonee Oil Company | Healdton, OK 73438 | Oil Operator | Jul 1996 |
| 1358 | Wood Charles L | Akron, OH 44320 | Oil & Gas Operator | Dec 1990 |
| 1359 | Wood Drilling LLC | Kittanning, PA 16201 | Gas Operator | Dec 2024 |
| 1360 | Wood Energy Corporation | Baytown, TX 77520 | Oil & Gas Operator | Jun 1999 |
| 1361 | Wood Energy, Inc. | Mount Vernon, IL 62864 | Oil Operator | Mar 2025 |
| 1362 | Wood Fay C Estate | Enid, OK 73703 | Oil & Gas Operator | Jun 2013 |
| 1363 | Wood Hi Co., Inc. | Victoria, TX 77902 | Oil & Gas Operator | Dec 2004 |
| 1364 | Wood McShane & T | | Oil Operator | Nov 1987 |
| 1365 | Wood Oil Company | Tulsa, OK 74103 | Gas Operator | Oct 1997 |
| 1366 | Wood River Oil & Refining Co | | Oil & Gas Operator | Dec 1998 |
| 1367 | Wood William C | Kittanning, PA 16201-4328 | Oil & Gas Operator | Dec 2018 |
| 1368 | Wood, C.W. | Calliham, TX 78007 | Oil & Gas Operator | Sep 2023 |
| 1369 | Wood, Clarence & Lacy, W F | | Oil Operator | Dec 2019 |
| 1370 | Wood, Donald E. | Independence, KS 67301 | Oil & Gas Operator | Dec 2024 |
| 1371 | Wood, E. H., Jr. | Wichita, KS 67202 | Oil & Gas Operator | Sep 2010 |
| 1372 | Wood, Kenneth | South Dayton, NY 14138 | Gas Operator | Dec 2024 |
| 1373 | Wood, McShane & Thams | Midland, TX 79702 | Oil & Gas Operator | Oct 1995 |
| 1374 | Woodall Oil Company | | Oil Operator | Sep 2010 |
| 1375 | Woodard Energy Company | Houston, TX 77042 | Oil & Gas Operator | Mar 2010 |
| 1376 | Woodbine Acquisition LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Nov 2014 |
| 1377 | Woodbine Petroleum, Inc. | Dallas, TX 75204 | Oil & Gas Operator | Aug 2003 |
| 1378 | Woodbine Production Corporation | Kilgore, TX 75663 | Oil & Gas Operator | Jul 2025 |
| 1379 | Woodland Hills Oil & Gas, LLC | | Oil Operator | Dec 2024 |
| 1380 | Woodland Operating LLC | Rio VIsta, TX 76093-0010 | Oil & Gas Operator | Apr 2025 |
| 1381 | Woodlawn Energy Dev., L.L.C. | | Oil & Gas Operator | Aug 2006 |
| 1382 | Woodman & Iannit | | Oil & Gas Operator | Sep 1996 |
| 1383 | Woodman & Iannitti Oil Company | Great Bend, KS 67530 | Oil & Gas Operator | Jan 2003 |
| 1384 | Woodpecker Corp. | | Oil & Gas Operator | Dec 2024 |
| 1385 | Woodruff, Michael C. | Smethport, PA 16749 | Oil & Gas Operator | Dec 2024 |
| 1386 | Woods & Deas | | Oil & Gas Operator | Jan 1984 |
| 1387 | Woods & Deas-Dobie | | Oil & Gas Operator | Aug 1983 |
| 1388 | Woods Henry Dba Woods Oil Company | Madill, OK 73446 | Oil Operator | Aug 2023 |
| 1389 | Woods Oil | | Oil Operator | Mar 2025 |
| 1390 | Woods Oil Co. | Burkburnett, TX 76354 | Oil & Gas Operator | Jul 2025 |
| 1391 | Woods Operating Co., Inc. | Shreveport, LA 71136 | Oil & Gas Operator | Dec 2020 |
| 1392 | Woods Petroleum Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Mar 2015 |
| 1393 | Woods, Et Al | | Gas Operator | Sep 1990 |
| 1394 | Woods, Herbert S. & Assoc. | El Dorado, AR 71730 | Gas Operator | Feb 2023 |
| 1395 | Woods, Pete Or Maxine | Chester, MT 59522 | Oil & Gas Operator | Apr 2025 |
| 1396 | Woods, W.A. Oil Co. | Holliday, TX 76366 | Oil & Gas Operator | Dec 1993 |
| 1397 | Woodward Disposal Company Inc | Woodward, OK 73801-3234 | Oil & Gas Operator | Sep 2013 |
| 1398 | Woodward Iodine Corporation | Woodward, OK 73801 | Oil & Gas Operator | May 2025 |
| 1399 | Woodward Petroleum | | Oil & Gas Operator | Dec 2003 |
| 1400 | Woodyard Drilling | Chesterhill, OH 43728 | Oil & Gas Operator | Dec 2016 |