| 1401 | Wolfson, I. J. | Wichita Falls, TX 76301 | Oil & Gas Operator | Apr 2002 |
| 1402 | Wollard-Abbott Crude, A General Partnership | Parker, KS 66072 | Oil Operator | May 2008 |
| 1403 | Wolsey Oil Inc. | Bowie, TX 76230 | Oil & Gas Operator | Oct 2013 |
| 1404 | Wolsey Well Service, Inc. | Windthorst, TX 76389 | Oil & Gas Operator | Jul 2006 |
| 1405 | Wolsey Well Service, L.P. | Bowie, TX 76230 | Oil & Gas Operator | Jun 2014 |
| 1406 | Wolverine Environmental Production Inc | | Oil & Gas Operator | Sep 2000 |
| 1407 | Wolverine Exploration Company | Houston, TX 77002 | Oil & Gas Operator | May 2019 |
| 1408 | Wolverine Gas & Oil Company Of Utah, LLC | Grand Rapids, MI 49503-2616 | Oil & Gas Operator | Dec 2025 |
| 1409 | Wolverine Gas And Oil Company Of Michigan LLC | | Oil & Gas Operator | Dec 2025 |
| 1410 | Wolverine Operations LLC | Buffalo, WY 82834 | Gas Operator | Oct 2008 |
| 1411 | Wolverine Petroleum Corp | Holdenville, OK 74848 | Oil & Gas Operator | Jul 1999 |
| 1412 | Wolverine Resources LLC | | Oil & Gas Operator | Jan 2024 |
| 1413 | Womack & Nelson | | Gas Operator | Feb 1987 |
| 1414 | Womack & Price | | Oil & Gas Operator | Oct 1990 |
| 1415 | Womack Energy, Inc. | Houston, TX 77057 | Oil & Gas Operator | Nov 2025 |
| 1416 | Womack Operating, LLC. | Houston, TX 77057 | Oil & Gas Operator | Feb 2026 |
| 1417 | Womack Prod Co. | | Oil Operator | Feb 1996 |
| 1418 | Womelsdorf Oil | Welda, KS 66091 | Oil Operator | Apr 1999 |
| 1419 | Wonee Oil Company | Healdton, OK 73438 | Oil Operator | Jul 1996 |
| 1420 | Wood Charles L | Akron, OH 44320 | Oil & Gas Operator | Dec 1990 |
| 1421 | Wood Donald E | Independence, KS 67301 | Oil & Gas Operator | Dec 2024 |
| 1422 | Wood Drilling LLC | Kittanning, PA 16201 | Gas Operator | Dec 2025 |
| 1423 | Wood Energy Corporation | Baytown, TX 77520 | Oil & Gas Operator | Jun 1999 |
| 1424 | Wood Energy, Inc. | Mount Vernon, IL 62864 | Oil Operator | Sep 2025 |
| 1425 | Wood Exploration Corporation | | Oil & Gas Operator | Jan 1999 |
| 1426 | Wood Fay C Estate | Enid, OK 73703 | Oil & Gas Operator | Jun 2013 |
| 1427 | Wood Hi Co., Inc. | Victoria, TX 77902 | Oil & Gas Operator | Dec 2004 |
| 1428 | Wood McShane & T | | Oil Operator | Nov 1987 |
| 1429 | Wood Oil Company | Tulsa, OK 74103 | Gas Operator | Oct 1997 |
| 1430 | Wood River Oil & Refining Co | | Oil & Gas Operator | Dec 1998 |
| 1431 | Wood William C | Kittanning, PA 16201-4328 | Oil & Gas Operator | Dec 2018 |
| 1432 | Wood, C.W. | Calliham, TX 78007 | Oil & Gas Operator | Sep 2023 |
| 1433 | Wood, Clarence & Lacy, W F | | Oil Operator | Dec 2019 |
| 1434 | Wood, E. H., Jr. | Wichita, KS 67202 | Oil & Gas Operator | Sep 2010 |
| 1435 | Wood, Kenneth | South Dayton, NY 14138 | Gas Operator | Dec 2024 |
| 1436 | Wood, McShane & Thams | Midland, TX 79702 | Oil & Gas Operator | Oct 1995 |
| 1437 | Woodall Oil Company | | Oil Operator | Sep 2010 |
| 1438 | Woodard Energy Company | Houston, TX 77042 | Oil & Gas Operator | Mar 2010 |
| 1439 | Woodard* Sandra K | | Oil Operator | Jul 2024 |
| 1440 | Woodbine Acquisition LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Nov 2014 |
| 1441 | Woodbine Petroleum, Inc. | Dallas, TX 75204 | Oil & Gas Operator | Aug 2003 |
| 1442 | Woodbine Production Corporation | Kilgore, TX 75663 | Oil & Gas Operator | Feb 2026 |
| 1443 | Woodbury Resources LLC | | Oil & Gas Operator | Apr 2024 |
| 1444 | Woodco Oil And Gas Company | | Gas Operator | Nov 1981 |
| 1445 | Woodland Hills Oil & Gas, LLC | | Oil Operator | Dec 2024 |
| 1446 | Woodland Operating LLC | Rio VIsta, TX 76093-0010 | Oil & Gas Operator | Nov 2025 |
| 1447 | Woodlands Oil And Gas Inc. | The Woodlands, TX 77380 | Gas Operator | Jan 2014 |
| 1448 | Woodlawn Energy Dev., L.L.C. | | Oil & Gas Operator | Aug 2006 |
| 1449 | Woodman & Iannit | | Oil & Gas Operator | Sep 1996 |
| 1450 | Woodman & Iannitti Oil Company | Great Bend, KS 67530 | Oil & Gas Operator | Jan 2003 |
| 1451 | Woodpecker Corp. | | Oil & Gas Operator | Dec 2024 |
| 1452 | Woodrow Wilson | | Gas Operator | Dec 1994 |
| 1453 | Woodruff, Michael C. | Smethport, PA 16749 | Oil & Gas Operator | Dec 2024 |
| 1454 | Woods & Deas | | Oil & Gas Operator | Jan 1984 |
| 1455 | Woods & Deas-Dobie | | Oil & Gas Operator | Aug 1983 |
| 1456 | Woods Henry Dba Woods Oil Company | Madill, OK 73446 | Oil Operator | Dec 2025 |
| 1457 | Woods Oil | | Oil Operator | Sep 2025 |
| 1458 | Woods Oil Co. | Burkburnett, TX 76354 | Oil & Gas Operator | Feb 2026 |
| 1459 | Woods Operating Co., Inc. | Shreveport, LA 71136 | Oil & Gas Operator | Dec 2020 |
| 1460 | Woods Petroleum Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Mar 2015 |
| 1461 | Woods, Et Al | | Gas Operator | Sep 1990 |
| 1462 | Woods, Herbert S. & Assoc. | El Dorado, AR 71730 | Gas Operator | Feb 2023 |
| 1463 | Woods, Pete Or Maxine | Chester, MT 59522 | Oil & Gas Operator | Nov 2025 |
| 1464 | Woods, W.A. Oil Co. | Holliday, TX 76366 | Oil & Gas Operator | Dec 1993 |
| 1465 | Woodside Michael | Ford City, PA 16226-9714 | Gas Operator | Dec 2019 |
| 1466 | Woodward Disposal Company Inc | Woodward, OK 73801-3234 | Oil & Gas Operator | Sep 2013 |
| 1467 | Woodward Iodine Corporation | Woodward, OK 73801 | Oil & Gas Operator | Dec 2025 |
| 1468 | Woodward Petroleum | | Oil & Gas Operator | Dec 2003 |
| 1469 | Woodyard Drilling | Chesterhill, OH 43728 | Oil & Gas Operator | Dec 2016 |
| 1470 | Woodygreen Resources, LLC | Plano, TX 75093 | Oil & Gas Operator | Feb 2026 |
| 1471 | Woodygreen Resources, LP | Abilene, TX 79608 | Oil & Gas Operator | Mar 2012 |
| 1472 | Wooldridge Land & Cattle, LLC | | Oil Operator | Jan 2025 |
| 1473 | Wooldridge Production Co.,LTD. | | Oil & Gas Operator | Apr 2008 |
| 1474 | Wooldridge Production, L.L.C. | | Oil Operator | Mar 2005 |
| 1475 | Woolever Stephen L | Tulsa, OK 74108-2303 | Oil Operator | Jul 2024 |
| 1476 | Wooley Garr Company | Yukon, OK 73099 | Oil & Gas Operator | Oct 1993 |
| 1477 | Wooley Petroleum | Alvord, TX 76225 | Oil & Gas Operator | Oct 1994 |
| 1478 | Woolf & Magee, Inc. | | Oil & Gas Operator | Oct 1991 |
| 1479 | Woolsey Operating Company, LLC | Wichita, KS 67226 | Oil & Gas Operator | Sep 2025 |
| 1480 | Woolsey Petroleum Corporation | Wichita, KS 67202 | Oil & Gas Operator | Sep 2025 |
| 1481 | Woosley, James P | Moab, UT 84532 | Oil & Gas Operator | Nov 2025 |
| 1482 | Work John | Tulsa, OK 74135 | Oil Operator | Dec 1996 |
| 1483 | Workover One, Inc. | | Oil & Gas Operator | Jul 1989 |
| 1484 | World Energy Corporation | Laredo, TX 78041 | Oil & Gas Operator | Aug 2003 |
| 1485 | World Hydrocarbon, Inc. | Kaufman, TX 75142 | Gas Operator | Apr 1995 |
| 1486 | World Mission Society Church Of God | New Windsor, NY 12553 | Gas Operator | Dec 2024 |
| 1487 | World Oil | | Oil & Gas Operator | Nov 1998 |
| 1488 | World Oil & Gas Expl., Inc. | | Oil & Gas Operator | Mar 1988 |
| 1489 | World Producers, Inc. | Dallas, TX 75201 | Oil & Gas Operator | Nov 1994 |
| 1490 | Worldwide Energy | | Oil & Gas Operator | May 1989 |
| 1491 | Worldwide Energy Corporation | Freer, TX 78357 | Oil & Gas Operator | Jan 1997 |
| 1492 | Worldwide Exploration, Inc | Kilgore, TX 75663 | Oil & Gas Operator | Mar 2002 |
| 1493 | Worsham Petroleum | Denver, CO 80209 | Gas Operator | Aug 2001 |
| 1494 | Worsham-Steed Gas Storage, L.P. | Houston, TX 77002 | Oil & Gas Operator | Aug 2010 |
| 1495 | Worsham-Steed Gas Storage, LLC | Tulsa, OK 74172 | Oil & Gas Operator | Feb 2026 |
| 1496 | Worstell Michael H | Collinsville, OK 74021-5918 | Oil Operator | Mar 2015 |
| 1497 | Worstell Oil & Gas Company | Collinsville, OK 74021 | Oil Operator | Nov 2005 |
| 1498 | Worstell Oil Co LLC | Collinsville, OK 74021-5918 | Oil Operator | Aug 2025 |
| 1499 | Worth Drilling | | Oil Operator | Jun 1993 |
| 1500 | Wortham Oil & Gas | Conroe, TX 77301 | Oil & Gas Operator | Feb 2026 |