| 11801 | Walbet, Inc. | Monahans, TX 79756 | Oil & Gas Operator | Jun 2026 |
| 11802 | Waldrop, L. E. | Houston, TX 77024 | Oil & Gas Operator | Jun 1996 |
| 11803 | Walkabout Operating, LLC | Lubbock, TX 79424 | Oil & Gas Operator | Jun 2026 |
| 11804 | Walker Oil & Gas | Early, TX 76802 | Oil & Gas Operator | Dec 2002 |
| 11805 | Walker Oil And Gas LTD | Snyder, TX 79550 | Oil Operator | Jun 2026 |
| 11806 | Walker Operating (I) | Wichita Falls, TX 76308 | Oil Operator | Jun 2026 |
| 11807 | Walker'S Well Service | Gladewater, TX 75647 | Oil & Gas Operator | Aug 2003 |
| 11808 | Walker, Daniel J. | La Vernia, TX 78121 | Oil Operator | Jun 2026 |
| 11809 | Walker, Harrel L. | La Vernia, TX 78121 | Oil & Gas Operator | May 2023 |
| 11810 | Walker, Kent | Midland, TX 79704 | Oil & Gas Operator | Jun 2004 |
| 11811 | Walker, Tigner | Shreveport, LA 71138 | Oil & Gas Operator | Feb 2005 |
| 11812 | Walking X Oil Co. | Whiteface, TX 79379 | Oil & Gas Operator | Jun 2026 |
| 11813 | Wallace Oil & Gas Inc | Oklahoma City, OK 73156 | Oil & Gas Operator | Jun 2026 |
| 11814 | Wallace Operating Company LLC | Metairie, LA 70003 | Gas Operator | Jun 2026 |
| 11815 | Wallen Production Co. | Midland, TX 79702 | Oil & Gas Operator | Aug 1996 |
| 11816 | Waller, C.W. Oil Co. | Albany, TX 76430 | Oil & Gas Operator | Jun 2026 |
| 11817 | Wallis Energy, Inc. | Austin, TX 78746 | Oil & Gas Operator | Jun 2026 |
| 11818 | Walls Energy, Inc. | Pampa, TX 79066 | Oil & Gas Operator | Aug 2003 |
| 11819 | Walls, G. M. & Frances, Inc. | Pampa, TX 79066 | Oil & Gas Operator | Jun 2026 |
| 11820 | Walsh & Watts Inc | Aledo, TX 76008 | Oil & Gas Operator | Jun 2026 |
| 11821 | Walsh Petroleum, Inc. | Midland, TX 79702 | Oil & Gas Operator | Dec 2022 |
| 11822 | Walsh Resources, Inc. | Tyler, TX 75713 | Oil & Gas Operator | Jun 2026 |
| 11823 | Walsh, F H Jr. Operating Co. Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Oct 2019 |
| 11824 | Walsh, F. Howard, Jr. | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 1994 |
| 11825 | Walter Exploration Company | Dallas, TX 75206 | Oil & Gas Operator | Jun 2026 |
| 11826 | Walter Exploration Inc | Dallas, TX 75206 | Oil & Gas Operator | May 2009 |
| 11827 | Walter H. Husfeld Oil Co LLC | Bowie, TX 76230 | Oil & Gas Operator | Jun 2026 |
| 11828 | Walter Oil & Gas Corporation | Houston, TX 77002 | Oil & Gas Operator | Jun 2026 |
| 11829 | Walterscheid, A. D. | Muenster, TX 76252 | Oil & Gas Operator | Dec 2014 |
| 11830 | Walterscheid, R. F. | Muenster, TX 76252 | Oil & Gas Operator | Oct 1993 |
| 11831 | Walton Producing Company | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 2005 |
| 11832 | Walton Producing Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Jun 2026 |
| 11833 | Walton Properties LTD. | Midland, TX 79702 | Oil & Gas Operator | Feb 2004 |
| 11834 | Walton, James A. | Midland, TX 79702 | Oil & Gas Operator | Oct 1994 |
| 11835 | Walton, W. W. | Breckenridge, TX 76424 | Oil & Gas Operator | Sep 1994 |
| 11836 | Wam Energy Corporation | Dallas, TX 75206 | Oil & Gas Operator | Dec 2016 |
| 11837 | Wandoo Energy, LLC | The Woodlands, TX 77382 | Oil & Gas Operator | Dec 2025 |
| 11838 | Wapiti Energy, LLC | Houston, TX 77024 | Oil & Gas Operator | Jul 2006 |
| 11839 | Wapiti Operating, LLC | Houston, TX 77043 | Oil & Gas Operator | Jun 2026 |
| 11840 | Warbonnet Exploration Company | Houston, TX 77056 | Oil & Gas Operator | Apr 2016 |
| 11841 | Ward Oil Co. | Kilgore, TX 75663 | Oil & Gas Operator | Jun 2026 |
| 11842 | Ward Trust | Spring, TX 77383 | Oil & Gas Operator | May 2013 |
| 11843 | Ward, Charles Oil Company | Olney, TX 76374 | Oil Operator | Jun 2026 |
| 11844 | Ward, E. B. | Alice, TX 78333 | Oil & Gas Operator | Jun 2001 |
| 11845 | Ward, L. S. | Graham, TX 76450 | Oil & Gas Operator | Jun 2001 |
| 11846 | Warner Oil Co., Inc. | Canyon, TX 79015 | Oil & Gas Operator | May 2013 |
| 11847 | Warner Sisters, LLC | Thompsons Sta, TN 37179 | Oil Operator | Jun 2026 |
| 11848 | Warner, Mark T. Oil Co | Pampa, TX 79065 | Oil & Gas Operator | Jul 2021 |
| 11849 | Warner-Pawel | Alice, TX 78333 | Oil & Gas Operator | Jun 2026 |
| 11850 | Warnock Operating Company, LLC | Graham, TX 76450 | Oil & Gas Operator | Jul 2013 |
| 11851 | Warren American Oil Co | Tulsa, OK 74147 | Oil & Gas Operator | Apr 2026 |
| 11852 | Warren American Oil Company LLC | Tulsa, OK 74147 | Oil & Gas Operator | Jun 2026 |
| 11853 | Warren Producers Inc | Bowling Green, KY 42102 | Oil & Gas Operator | Dec 2017 |
| 11854 | Warren Production Services | Caldwell, TX 77836 | Oil & Gas Operator | Jun 2026 |
| 11855 | Warren, Earl T. | San Angelo, TX 76906 | Oil & Gas Operator | Jun 2026 |
| 11856 | Warren, Joe H. | Dallas, TX 75206 | Oil & Gas Operator | Oct 2001 |
| 11857 | Warrior Exploration LLC | Sapulpa, OK 74067-1912 | Oil & Gas Operator | Mar 2026 |
| 11858 | Warrior Resources Inc. | Mexia, TX 76667 | Oil & Gas Operator | Jun 2026 |
| 11859 | Warwick Associates LC | Oklahoma City, OK 73112 | Oil & Gas Operator | Feb 2026 |
| 11860 | Warwick Oil & Gas, Inc. | Houston, TX 77098 | Oil & Gas Operator | Feb 1993 |
| 11861 | Warwick Poseidon, GP | Nichols Hill, OK 73116 | Gas Operator | Jun 2026 |
| 11862 | Warwick-Artemis, LLC | Nichols Hill, OK 73116 | Oil & Gas Operator | Jun 2026 |
| 11863 | Wash, Robert C. | Forsan, TX 79733 | Oil & Gas Operator | Nov 2000 |
| 11864 | Wash, Robert C. Inc. | Forsan, TX 79733 | Oil & Gas Operator | Jun 2026 |
| 11865 | Washita Oil And Gas, L.L.C. | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2015 |
| 11866 | Washita Production Company | Tulsa, OK 74136 | Oil & Gas Operator | May 2006 |
| 11867 | Watco Energy | Jacksboro, TX 76458 | Oil & Gas Operator | Jun 2026 |
| 11868 | Watco Energy, Inc. | Tyler, TX 75713 | Oil & Gas Operator | Apr 1996 |
| 11869 | Water Works Engineering, Inc. | Rockdale, TX 76567 | Oil & Gas Operator | Jan 1998 |
| 11870 | Waterbridge Texas Operating LLC | Houston, TX 77056 | Oil & Gas Operator | Jun 2026 |
| 11871 | Waters Eng. & Operating, Inc. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | Sep 2013 |
| 11872 | Waters Petroleum | Albany, TX 76430 | Oil & Gas Operator | Aug 2016 |
| 11873 | Watkins Production Company | Dallas, TX 75229 | Oil & Gas Operator | Feb 2008 |
| 11874 | Watkins, J. B. | Borger, TX 79007 | Oil & Gas Operator | May 2009 |
| 11875 | Watson Energy Investments, LLC | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2026 |
| 11876 | Watson Oil & Gas Co. | Gorman, TX 76454 | Oil & Gas Operator | Jan 2002 |
| 11877 | Watson Oil & Gas, Inc. | Spicewood, TX 78669 | Oil & Gas Operator | Jun 2026 |
| 11878 | Watson Operating Company | Pampa, TX 79066 | Oil & Gas Operator | Dec 2003 |
| 11879 | Watson Packer Employee Fund | Monahans, TX 79756 | Oil & Gas Operator | Jun 2026 |
| 11880 | Watson, B. G. Oil Field Salv Inc | Coleman, TX 76834 | Oil & Gas Operator | Mar 2000 |
| 11881 | Watt Energy, LLC | Port Barre, LA 70577 | Oil & Gas Operator | Jun 2026 |
| 11882 | Watusi Energy LLC | Midland, TX 79710 | Oil & Gas Operator | Jun 2026 |
| 11883 | Way, Ralph L., Inc. | Midland, TX 79701 | Oil & Gas Operator | Jun 2026 |
| 11884 | Wayland Drilling & Explr., Inc. | Grapevine, TX 76099 | Oil & Gas Operator | Apr 2006 |
| 11885 | Waylander LLC | Plano, TX 75025 | Oil & Gas Operator | Jun 2026 |
| 11886 | Waymar Oil & Gas Company | Texarkana, TX 75503 | Oil & Gas Operator | Jan 2007 |
| 11887 | Wayne E. Glenn Associates, Inc. | Dickinson, TX 77539 | Oil & Gas Operator | Jan 2016 |
| 11888 | WB Mullin Operating LLC | Graham, TX 76450 | Oil & Gas Operator | Jun 2026 |
| 11889 | WBH Energy Partners LLC | Austin, TX 78703 | Oil & Gas Operator | Jun 2026 |
| 11890 | WBR, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Sep 1995 |
| 11891 | WCS Oil & Gas Corporation | Dallas, TX 75209 | Oil & Gas Operator | Aug 2021 |
| 11892 | WCT Leasing Co. | Austin, TX 78734 | Oil & Gas Operator | Apr 2019 |
| 11893 | WCWB Energy, LLC | Midland, TX 79701 | Oil Operator | Sep 2015 |
| 11894 | Weakland Investments, Inc. | Denver, CO 80215 | Oil & Gas Operator | Jun 2026 |
| 11895 | Weatherly Oil & Gas, LLC | Dallas, TX 75206 | Oil & Gas Operator | Jun 2026 |
| 11896 | Weathers Exploration, Inc. | Tyler, TX 75702 | Oil & Gas Operator | Jun 2026 |
| 11897 | Weatherston, George D. | San Antonio, TX 78217 | Oil & Gas Operator | Oct 2001 |
| 11898 | Weaver & Sharp | Corpus Chrsti, TX 78403 | Oil & Gas Operator | Mar 1997 |
| 11899 | Weaver Global Operating, LLC | Colleyville, TX 76034 | Oil Operator | Jun 2026 |
| 11900 | Weber Energy Corporation | Dallas, TX 75219 | Oil & Gas Operator | Feb 2017 |