| 31401 | Walters Oil Company | Elmore City, OK 73433-9505 | Oil & Gas Operator | Feb 2025 |
| 31402 | Walters Oil LLC | Elmore City, OK 73433-8637 | Oil Operator | Apr 2020 |
| 31403 | Walters Oil Well Service Inc | Walters, OK 73572-0467 | Oil & Gas Operator | Nov 2000 |
| 31404 | Walters Production | | Oil Operator | Mar 2005 |
| 31405 | Walterscheid, A. D. | Muenster, TX 76252 | Oil & Gas Operator | Dec 2014 |
| 31406 | Walterscheid, R. F. | Muenster, TX 76252 | Oil & Gas Operator | Oct 1993 |
| 31407 | Waltman Family LP | Maud, OK 74854-2603 | Oil Operator | Feb 2025 |
| 31408 | Waltman Oil & Gas | Maud, OK 74854-9739 | Oil Operator | Sep 2001 |
| 31409 | Walton Producing Company | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 2005 |
| 31410 | Walton Producing Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | May 2025 |
| 31411 | Walton Properties LTD. | Midland, TX 79702 | Oil & Gas Operator | Feb 2004 |
| 31412 | Walton, James A. | Midland, TX 79702 | Oil & Gas Operator | Oct 1994 |
| 31413 | Walton, Tara | Copan, OK 74022 | Oil Operator | Oct 2024 |
| 31414 | Walton, W. W. | Breckenridge, TX 76424 | Oil & Gas Operator | Sep 1994 |
| 31415 | Wam Energy Corporation | Dallas, TX 75206 | Oil & Gas Operator | Dec 2016 |
| 31416 | Wandering Star Partners #1 LLLP | | Oil & Gas Operator | Apr 2015 |
| 31417 | Wandoo Energy, LLC | The Woodlands, TX 77382 | Oil & Gas Operator | May 2025 |
| 31418 | Wandover Charles T SR | Inverness, FL 34452-7527 | Oil & Gas Operator | Dec 2024 |
| 31419 | Wapi Operating LLC | McCurtain, OK 74944 | Oil & Gas Operator | Feb 2025 |
| 31420 | Wapiti Energy, LLC | Houston, TX 77024 | Oil & Gas Operator | Jul 2006 |
| 31421 | Wapiti Oil & Gas LLC | Houston, TX 77024 | Oil Operator | Dec 2011 |
| 31422 | Wapiti Operating, LLC | Houston, TX 77043 | Oil & Gas Operator | May 2025 |
| 31423 | War Cry, LLC | Russell, KS 67665 | Oil Operator | Jan 2025 |
| 31424 | Warbonnet Exploration Company | Houston, TX 77056 | Oil & Gas Operator | Apr 2016 |
| 31425 | Ward & Son* Alfred | | Oil & Gas Operator | Jun 2023 |
| 31426 | Ward Feed Yard, Inc. | Larned, KS 67550 | Oil & Gas Operator | Mar 2016 |
| 31427 | Ward Kelly | Drumright, OK 74030-5661 | Oil & Gas Operator | Feb 2015 |
| 31428 | Ward M Haggard Oil And Gas Exploration Inc | | Oil Operator | Apr 2025 |
| 31429 | Ward Oil Co. | Kilgore, TX 75663 | Oil & Gas Operator | May 2025 |
| 31430 | Ward Oil Company An Okla Corp | McAlester, OK 74501 | Oil & Gas Operator | Feb 1993 |
| 31431 | Ward Petroleum Corporation | Enid, OK 73702 | Oil & Gas Operator | Feb 2025 |
| 31432 | Ward Trust | Spring, TX 77383 | Oil & Gas Operator | May 2013 |
| 31433 | Ward, Charles Oil Company | Olney, TX 76374 | Oil Operator | May 2025 |
| 31434 | Ward, E. B. | Alice, TX 78333 | Oil & Gas Operator | Jun 2001 |
| 31435 | Ward, L. S. | Graham, TX 76450 | Oil & Gas Operator | Jun 2001 |
| 31436 | Ward, Ted G. Jr. | Monahans, TX 79756 | Oil & Gas Operator | Nov 2000 |
| 31437 | Ward-Williston Company | | Oil & Gas Operator | Apr 2014 |
| 31438 | Ward-Williston Drilling Co. | | Oil & Gas Operator | Dec 1994 |
| 31439 | Ware House Industries | Casper, WY 82605 | Oil & Gas Operator | Dec 2013 |
| 31440 | Ware Jimmy M | Seminole, OK 74868 | Oil & Gas Operator | Nov 1998 |
| 31441 | Ware, Lonnie | | Oil & Gas Operator | Feb 2025 |
| 31442 | Warfield John E | Cleo Springs, OK 73729-9723 | Oil & Gas Operator | Jul 2005 |
| 31443 | Warfield Management, LLC | Newman, GA 30263 | Gas Operator | Dec 2021 |
| 31444 | Warhorse Oil & Gas, LLC | | Oil & Gas Operator | Dec 2018 |
| 31445 | Warhorse Petroleum Inc | Lafayette, CO 80026 | Oil Operator | Jan 2025 |
| 31446 | Warner Clifford E | Newark, OH 43055 | Oil Operator | Dec 2022 |
| 31447 | Warner George H | Pomeroy, OH 45769 | Oil & Gas Operator | Dec 2014 |
| 31448 | Warner Gona Revocable Trust | Sand Springs, OK 74063-5296 | Oil & Gas Operator | May 2009 |
| 31449 | Warner Oil Co., Inc. | Canyon, TX 79015 | Oil & Gas Operator | May 2013 |
| 31450 | Warner Oil Prod | | Oil Operator | Apr 1995 |
| 31451 | Warner Production LLC | Mannford, OK 74044-6182 | Oil & Gas Operator | Mar 2025 |
| 31452 | Warner Sisters, LLC | Thompsons Sta, TN 37179 | Oil Operator | May 2025 |
| 31453 | Warner Ventures Inc | | Oil Operator | Dec 2024 |
| 31454 | Warner, Mark T. Oil Co | Pampa, TX 79065 | Oil & Gas Operator | Jul 2021 |
| 31455 | Warner-Pawel | Alice, TX 78333 | Oil & Gas Operator | May 2025 |
| 31456 | Warnock Operating Company, LLC | Graham, TX 76450 | Oil & Gas Operator | Jul 2013 |
| 31457 | Warpath Energy Inc | Broken Arrow, OK 74014-1118 | Oil & Gas Operator | Apr 2018 |
| 31458 | Warrego Oil & Gas LLC | Lander, WY 82520 | Oil Operator | May 2018 |
| 31459 | Warren American Oil Co | Tulsa, OK 74147 | Oil & Gas Operator | Mar 2025 |
| 31460 | Warren American Oil Company LLC | Tulsa, OK 74147 | Oil & Gas Operator | May 2025 |
| 31461 | Warren Drilling Co | Dexter City, OH 45727 | Oil & Gas Operator | Dec 2023 |
| 31462 | Warren E & P Inc | Dallas, TX 75240 | Oil & Gas Operator | Mar 2025 |
| 31463 | Warren Enterprises Inc | Gillette, WY 82718 | Oil Operator | Dec 2022 |
| 31464 | Warren Producers Inc | Bowling Green, KY 42102 | Oil & Gas Operator | Dec 2017 |
| 31465 | Warren Production Services | Caldwell, TX 77836 | Oil & Gas Operator | May 2025 |
| 31466 | Warren, Earl T. | San Angelo, TX 76906 | Oil & Gas Operator | May 2025 |
| 31467 | Warren, James E. | Arkansas City, KS 67005 | Oil Operator | Nov 2009 |
| 31468 | Warren, Joe H. | Dallas, TX 75206 | Oil & Gas Operator | Oct 2001 |
| 31469 | Warren, Malcolm | Corfu, NY 14036 | Gas Operator | Dec 2023 |
| 31470 | Warrior Exploration LLC | Sapulpa, OK 74067-1912 | Oil & Gas Operator | Feb 2025 |
| 31471 | Warrior Inc | Hobbs, NM 88241 | Oil & Gas Operator | Feb 1998 |
| 31472 | Warrior Met Coal Gas, LLC | Brookwood, AL 35444 | Gas Operator | Feb 2025 |
| 31473 | Warrior Petroleum Corporation | Henderson, TX 75652 | Oil & Gas Operator | Apr 2024 |
| 31474 | Warrior Resources Inc. | Mexia, TX 76667 | Oil & Gas Operator | May 2025 |
| 31475 | Warwick Associates LC | Oklahoma City, OK 73112 | Oil & Gas Operator | Mar 2025 |
| 31476 | Warwick Oil & Gas, Inc. | Houston, TX 77098 | Oil & Gas Operator | Feb 1993 |
| 31477 | Warwick Oil Corp. | | Oil & Gas Operator | Mar 1990 |
| 31478 | Warwick-Artemis, LLC | Nichols Hill, OK 73116 | Oil & Gas Operator | May 2025 |
| 31479 | Warwick-Bacchus LLC | Oklahoma City, OK 73116 | Oil & Gas Operator | Feb 2025 |
| 31480 | Warwick-Jupiter LLC | Oklahoma City, OK 73116 | Oil & Gas Operator | Mar 2025 |
| 31481 | Warwick-Minerva LLC | Oklahoma City, OK 73116 | Oil & Gas Operator | Feb 2025 |
| 31482 | Wasatch Oil & Gas Corp | Farmington, UT 84025-0699 | Oil & Gas Operator | Mar 2002 |
| 31483 | Wash, Robert C. | Forsan, TX 79733 | Oil & Gas Operator | Nov 2000 |
| 31484 | Wash, Robert C. Inc. | Forsan, TX 79733 | Oil & Gas Operator | May 2025 |
| 31485 | Washakie Energies Company | Worland, WY 82401 | Oil & Gas Operator | Dec 2019 |
| 31486 | Washakie Oil Company | | Oil & Gas Operator | Dec 1989 |
| 31487 | Washburn Lee | Newcastle, WY 82701 | Oil Operator | Jan 2025 |
| 31488 | Washington Energy Co LLC | Canonsburg, PA 15317-0400 | Oil & Gas Operator | Dec 2024 |
| 31489 | Washington Energy Exploration | | Oil & Gas Operator | Dec 1997 |
| 31490 | Washita Energy Inc | Pauls Valley, OK 73075-0923 | Oil & Gas Operator | Mar 2015 |
| 31491 | Washita Oil And Gas, L.L.C. | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2015 |
| 31492 | Washita Production Company | Tulsa, OK 74136 | Oil & Gas Operator | May 2006 |
| 31493 | Wassom, Claude J | | Oil & Gas Operator | May 2013 |
| 31494 | Wasson Billy C | Morris, OK 74445 | Oil & Gas Operator | Feb 2025 |
| 31495 | Waste TRMT Corp | Washington, PA 15301-0558 | Oil & Gas Operator | Dec 2024 |
| 31496 | Wat Khmer Temple* | | Oil Operator | Dec 2003 |
| 31497 | Watchtower Petroleum, LLC | | Oil & Gas Operator | Mar 2025 |
| 31498 | Watco Energy | Jacksboro, TX 76458 | Oil & Gas Operator | May 2025 |
| 31499 | Watco Energy, Inc. | Tyler, TX 75713 | Oil & Gas Operator | Apr 1996 |
| 31500 | Water Works Engineering, Inc. | Rockdale, TX 76567 | Oil & Gas Operator | Jan 1998 |