| 12601 | Winston Land & Cattle Co., Inc. | Lufkin, TX 75901 | Oil & Gas Operator | Feb 2001 |
| 12602 | Winston Land & Cattle I, LTD. | Lufkin, TX 75902 | Oil & Gas Operator | Nov 2014 |
| 12603 | Winwell, L.L.C. | Shreveport, LA 71101 | Oil & Gas Operator | Dec 2007 |
| 12604 | Wischkaemper, James K. | Shamrock, TX 79079 | Oil & Gas Operator | Aug 2023 |
| 12605 | Wischkaemper, Kenneth | Shamrock, TX 79079 | Oil & Gas Operator | Feb 2026 |
| 12606 | Wise Exploration | Perrin, TX 76486 | Oil & Gas Operator | Feb 2026 |
| 12607 | Wise Production Company | Bowie, TX 76230 | Oil & Gas Operator | Feb 2026 |
| 12608 | Wise Star Energy, LLC | Port Aransas, TX 78373 | Oil & Gas Operator | Feb 2026 |
| 12609 | Wise Supply Company | Bowie, TX 76230 | Oil & Gas Operator | Feb 2026 |
| 12610 | Wise Well Service | Bowie, TX 76230 | Oil & Gas Operator | Jul 2017 |
| 12611 | Wiseman, B. W., Jr. | Midland, TX 79702 | Oil & Gas Operator | Dec 2002 |
| 12612 | Wisenbaker Production Company | Tyler, TX 75702 | Oil & Gas Operator | Oct 2011 |
| 12613 | Wiser Oil Co | Denver, CO 80202 | Oil & Gas Operator | Dec 2023 |
| 12614 | Wishbone Texas Operating Co LLC | Houston, TX 77064 | Oil & Gas Operator | Jul 2019 |
| 12615 | Witherspoon Oil Co | Iowa Park, TX 76367 | Oil & Gas Operator | Feb 2026 |
| 12616 | Withrow Engineering, Inc. | Richardson, TX 75080 | Oil & Gas Operator | Mar 2000 |
| 12617 | WJ South Waskom #1, LLC | Dallas, TX 75205 | Oil Operator | Feb 2026 |
| 12618 | WJC, Inc. | Post, TX 79356 | Oil & Gas Operator | Feb 2026 |
| 12619 | WJH Energy, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Feb 2026 |
| 12620 | WJR Production LLC | Fort Worth, TX 76177 | Oil Operator | Feb 2026 |
| 12621 | WJW Operating Co.,LLC | Austin, TX 78738 | Oil & Gas Operator | May 2002 |
| 12622 | WLH Production LLC | Gainesville, TX 76240 | Oil Operator | Feb 2026 |
| 12623 | WM Wild Wolf Production LLC | Albany, TX 76430 | Oil Operator | Feb 2026 |
| 12624 | Wmo Oil, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Feb 2026 |
| 12625 | WMS Corporation | Corsicana, TX 75110 | Oil & Gas Operator | Feb 2026 |
| 12626 | WMS Oil Company | Post, TX 79356 | Oil & Gas Operator | May 2019 |
| 12627 | Wnu Energy LLC | Pinedale, WY 82941 | Oil & Gas Operator | Jan 2026 |
| 12628 | Wo Operating Company | Tulsa, OK 74159 | Oil & Gas Operator | Feb 2026 |
| 12629 | Wofford, C. J. | El Campo, TX 77437 | Oil & Gas Operator | Feb 2026 |
| 12630 | Wolco Energy, Inc. | Dallas, TX 75220 | Oil & Gas Operator | May 1997 |
| 12631 | Wolcott, Ed Operating | Dallas, TX 75205 | Oil & Gas Operator | Oct 2000 |
| 12632 | Wolf Creek Exploration Company | Amarillo, TX 79159 | Oil & Gas Operator | Aug 2000 |
| 12633 | Wolf Energy | Midland, TX 79701 | Oil & Gas Operator | Jan 1995 |
| 12634 | Wolf Energy, Inc. | Midland, TX 79701 | Oil & Gas Operator | Oct 2021 |
| 12635 | Wolf Production, Inc. | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 12636 | Wolf, Gene | Windthorst, TX 76389 | Oil & Gas Operator | Apr 2003 |
| 12637 | Wolf, Gene L.L.C. | Windthorst, TX 76389 | Oil & Gas Operator | Feb 2026 |
| 12638 | Wolfcamp Energy, LLC | Midland, TX 79702 | Gas Operator | Feb 2026 |
| 12639 | Wolfcamp Oil & Gas, Inc. | Odessa, TX 79764 | Oil & Gas Operator | Dec 2004 |
| 12640 | Wolfe Oil Company | Stockdale, TX 78160 | Oil Operator | Feb 2026 |
| 12641 | Wolfson Oil Co. | Dallas, TX 75230 | Oil & Gas Operator | Sep 1999 |
| 12642 | Wolfson, I. J. | Wichita Falls, TX 76301 | Oil & Gas Operator | Apr 2002 |
| 12643 | Wolsey Oil Inc. | Bowie, TX 76230 | Oil & Gas Operator | Oct 2013 |
| 12644 | Wolsey Well Service, Inc. | Windthorst, TX 76389 | Oil & Gas Operator | Jul 2006 |
| 12645 | Wolsey Well Service, L.P. | Bowie, TX 76230 | Oil & Gas Operator | Jun 2014 |
| 12646 | Wolverine Exploration Company | Houston, TX 77002 | Oil & Gas Operator | May 2019 |
| 12647 | Womack Energy, Inc. | Houston, TX 77057 | Oil & Gas Operator | Nov 2025 |
| 12648 | Womack Operating, LLC. | Houston, TX 77057 | Oil & Gas Operator | Feb 2026 |
| 12649 | Wood Energy Corporation | Baytown, TX 77520 | Oil & Gas Operator | Jun 1999 |
| 12650 | Wood Hi Co., Inc. | Victoria, TX 77902 | Oil & Gas Operator | Dec 2004 |
| 12651 | Wood Oil Company | Tulsa, OK 74103 | Gas Operator | Oct 1997 |
| 12652 | Wood, C.W. | Calliham, TX 78007 | Oil & Gas Operator | Sep 2023 |
| 12653 | Wood, McShane & Thams | Midland, TX 79702 | Oil & Gas Operator | Oct 1995 |
| 12654 | Woodard Energy Company | Houston, TX 77042 | Oil & Gas Operator | Mar 2010 |
| 12655 | Woodbine Acquisition LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Nov 2014 |
| 12656 | Woodbine Petroleum, Inc. | Dallas, TX 75204 | Oil & Gas Operator | Aug 2003 |
| 12657 | Woodbine Production Corporation | Kilgore, TX 75663 | Oil & Gas Operator | Feb 2026 |
| 12658 | Woodlands Oil And Gas Inc. | The Woodlands, TX 77380 | Gas Operator | Jan 2014 |
| 12659 | Woods Oil Co. | Burkburnett, TX 76354 | Oil & Gas Operator | Feb 2026 |
| 12660 | Woods Operating Co., Inc. | Shreveport, LA 71136 | Oil & Gas Operator | Dec 2020 |
| 12661 | Woods, Herbert S. & Assoc. | El Dorado, AR 71730 | Gas Operator | Feb 2023 |
| 12662 | Woods, W.A. Oil Co. | Holliday, TX 76366 | Oil & Gas Operator | Dec 1993 |
| 12663 | Woodygreen Resources, LLC | Plano, TX 75093 | Oil & Gas Operator | Feb 2026 |
| 12664 | Woodygreen Resources, LP | Abilene, TX 79608 | Oil & Gas Operator | Mar 2012 |
| 12665 | Wooley Petroleum | Alvord, TX 76225 | Oil & Gas Operator | Oct 1994 |
| 12666 | World Energy Corporation | Laredo, TX 78041 | Oil & Gas Operator | Aug 2003 |
| 12667 | World Hydrocarbon, Inc. | Kaufman, TX 75142 | Gas Operator | Apr 1995 |
| 12668 | World Producers, Inc. | Dallas, TX 75201 | Oil & Gas Operator | Nov 1994 |
| 12669 | Worldwide Energy Corporation | Freer, TX 78357 | Oil & Gas Operator | Jan 1997 |
| 12670 | Worldwide Exploration, Inc | Kilgore, TX 75663 | Oil & Gas Operator | Mar 2002 |
| 12671 | Worsham-Steed Gas Storage, L.P. | Houston, TX 77002 | Oil & Gas Operator | Aug 2010 |
| 12672 | Worsham-Steed Gas Storage, LLC | Tulsa, OK 74172 | Oil & Gas Operator | Feb 2026 |
| 12673 | Wortham Oil & Gas | Conroe, TX 77301 | Oil & Gas Operator | Feb 2026 |
| 12674 | Wortham Operating, LLC | Holliday, TX 76366 | Oil & Gas Operator | Apr 2023 |
| 12675 | Wortham, E. H. | Holliday, TX 76366 | Oil & Gas Operator | Mar 2008 |
| 12676 | Wortham, J. R. | Wichita Falls, TX 76310 | Oil & Gas Operator | Aug 2023 |
| 12677 | Wortham, Michael R. | Holliday, TX 76366 | Oil & Gas Operator | Mar 2008 |
| 12678 | WP Oil & Gas Exploration LLC | Loving, TX 76460 | Oil Operator | Feb 2026 |
| 12679 | WPH Operating Company | Amarillo, TX 79105 | Oil & Gas Operator | Mar 2017 |
| 12680 | WPX Energy Gulf Coast, LP | Benbrook, TX 76126 | Oil & Gas Operator | May 2012 |
| 12681 | WPX Energy Permian, LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | Feb 2026 |
| 12682 | WR Resources, LLC | Jourdanton, TX 78026 | Oil & Gas Operator | Feb 2026 |
| 12683 | Wrath Energy, LLC | Odessa, TX 79760 | Oil Operator | Feb 2026 |
| 12684 | WRD Oil, LLC | Floresville, TX 78114 | Oil & Gas Operator | Feb 2026 |
| 12685 | WRD Operating LLC | Houston, TX 77056 | Oil & Gas Operator | Feb 2026 |
| 12686 | Wright Aurora Enterprises, LLC | Canyon Lake, TX 78133 | Oil & Gas Operator | May 2020 |
| 12687 | Wright Brothers Energy, Inc. | Boerne, TX 78006 | Oil & Gas Operator | Feb 2026 |
| 12688 | Wright Brothers Petroleum, LTD. | San Antonio, TX 78212 | Oil & Gas Operator | May 2002 |
| 12689 | Wright Oil And Gas, LLC | Benbrook, TX 76126 | Oil & Gas Operator | Feb 2026 |
| 12690 | Wright Operating, Inc. | Denison, TX 75020 | Oil & Gas Operator | Feb 2026 |
| 12691 | Wright Trucking, Inc. | Weatherford, OK 73096 | Oil & Gas Operator | Feb 2019 |
| 12692 | Wright, Robert W. | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 12693 | Wright, Robert W. Inc. | Graham, TX 76450 | Oil & Gas Operator | Dec 2000 |
| 12694 | WRT Energy Corporation | Oklahoma City, OK 73118 | Oil & Gas Operator | May 1998 |
| 12695 | WS Ritter Critters, LLC | Groom, TX 79039 | Gas Operator | Feb 2026 |
| 12696 | WSF, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Jun 2013 |
| 12697 | WSM | New Braunfels, TX 78132 | Oil Operator | Feb 2026 |
| 12698 | WT Fitts Operating | Bowie, TX 76230 | Oil & Gas Operator | Feb 2026 |
| 12699 | WTG Exploration | Midland, TX 79705 | Oil & Gas Operator | Feb 2026 |
| 12700 | WTG Exploration Inc | Midland, TX 79705 | Oil & Gas Operator | Dec 2023 |