| 30801 | W. R. Williams, Inc. | Amarillo, TX 79105 | Gas Operator | Dec 2019 |
| 30802 | W. S. Hale Petroleum | | Oil & Gas Operator | Jul 2015 |
| 30803 | W. S. Hale Petroleum, L.L.C. | | Oil & Gas Operator | Jul 2024 |
| 30804 | W. T. Waggoner Estate | | Oil & Gas Operator | Nov 1995 |
| 30805 | W. Trich & Hallwell, Inc. | | Oil & Gas Operator | Oct 1988 |
| 30806 | W. W. F. Oil Corporation | | Oil & Gas Operator | Dec 1999 |
| 30807 | W. W. Melton | | Oil Operator | Sep 1983 |
| 30808 | W.A. Oil Co. | Andrews, TX 79714 | Oil & Gas Operator | Aug 1997 |
| 30809 | W.B.D. Oil And Gas Inc. | Pampa, TX 79066 | Oil & Gas Operator | Oct 2019 |
| 30810 | W.D. Oil Company | Pampa, TX 79066 | Oil & Gas Operator | Oct 2001 |
| 30811 | W.D. Short Oil Co., LLC | Oxford, KS 67119 | Oil & Gas Operator | Jul 2024 |
| 30812 | W.E.S. Operating Company, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Nov 2011 |
| 30813 | W.H.D., Inc. | Euless, TX 76039 | Oil & Gas Operator | Aug 1998 |
| 30814 | W.I. Royalty, Inc. | Abilene, TX 79601 | Oil & Gas Operator | Nov 2009 |
| 30815 | W.I.F.T. Operating, LLC | | Oil & Gas Operator | Oct 2024 |
| 30816 | W.J., Inc. | Ellis, KS 67637 | Oil Operator | Jan 2001 |
| 30817 | W.L. Ranch Inc. | Caldwell, TX 77836 | Oil & Gas Operator | Dec 2024 |
| 30818 | W.O.G., Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 30819 | W.P. Moore, Inc. | | Oil Operator | Dec 1983 |
| 30820 | W.P.P.I. Inc. | Westbrook, TX 79565 | Oil & Gas Operator | Jul 2013 |
| 30821 | W.R. Guffey LLC | Dallas, TX 75206 | Oil & Gas Operator | Jul 2020 |
| 30822 | W.R.A. Oil Co. | | Oil & Gas Operator | Jul 2024 |
| 30823 | W.S. Red Hancock, Inc. | | Oil Operator | Dec 1986 |
| 30824 | W.T. Waggoner Estate, Inc. | Vernon, TX 76385 | Oil Operator | Dec 2024 |
| 30825 | W.W. Energy | Luling, TX 78648 | Oil & Gas Operator | Dec 2024 |
| 30826 | W.W.R. Holding, LLC | Coleman, TX 76834 | Oil & Gas Operator | Mar 2008 |
| 30827 | W4 Energy, LLC | Humboldt, KS 66748 | Gas Operator | Nov 2015 |
| 30828 | Wabash Energy Corporation | Lawrenceville, IL 62439 | Oil & Gas Operator | Dec 2009 |
| 30829 | Wabco Production Company | | Oil Operator | Jul 2021 |
| 30830 | Wachob Jack | Sapulpa, OK 74066 | Oil Operator | Dec 2014 |
| 30831 | Wachob Oil & Gas LLC | Sapulpa, OK 74066-6987 | Oil Operator | Jun 2015 |
| 30832 | Wachtman-Schroed | | Oil Operator | Aug 1986 |
| 30833 | Wachtman-Schroeder, A General Partnership | Pawhuska, OK 74056 | Oil Operator | Jun 2024 |
| 30834 | Wacker Oil Inc | Houston, TX 77002 | Oil & Gas Operator | Aug 1996 |
| 30835 | Waco Corp | | Oil Operator | Jun 1983 |
| 30836 | Waco Oil | | Oil Operator | Apr 1992 |
| 30837 | Waco Oil & Gas Co., Inc. | Glenville, WV 26351-0397 | Oil & Gas Operator | Dec 2021 |
| 30838 | Waco Petro, LP | Sulphur SPGS, TX 75483 | Oil Operator | Sep 2015 |
| 30839 | Waco Production Co. | Archer City, TX 76351 | Oil & Gas Operator | Sep 1993 |
| 30840 | Waddell Norman | Seminole, OK 74868-1244 | Oil & Gas Operator | Nov 1998 |
| 30841 | Waddell, Eric F. | Natoma, KS 67651 | Oil Operator | Aug 1995 |
| 30842 | Waddell, Kent | Abilene, TX 79606 | Oil & Gas Operator | Nov 2010 |
| 30843 | Waddy & Son Oilfield Services Inc | Dellroy, OH 44620-9762-9762 | Oil & Gas Operator | Dec 2023 |
| 30844 | Wade Energy Corporation | Carlsbad, NM 88220 | Oil & Gas Operator | Sep 1999 |
| 30845 | Wade Operating | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2024 |
| 30846 | Wade, Jim | Olney, TX 76374 | Oil & Gas Operator | Dec 2024 |
| 30847 | Wadi Exploration&Production,LLC | San Clemente, CA 92672 | Oil & Gas Operator | Jul 2020 |
| 30848 | Wadi Operating, LLC | Houston, TX 77079 | Oil & Gas Operator | Dec 2024 |
| 30849 | Wadi Petroleum Inc | Houston, TX 77014 | Oil & Gas Operator | May 2018 |
| 30850 | Wadkins T Roy | Bartlesville, OK 74006 | Oil & Gas Operator | Nov 2019 |
| 30851 | Wadley Bill & Son Drilling Co | Okmulgee, OK 74447-8934 | Oil & Gas Operator | Aug 2024 |
| 30852 | Waelder Oil & Gas, Inc. | Fort Smith, AR 72903 | Oil & Gas Operator | Aug 2024 |
| 30853 | Waffenbauch USA Corp. | Westfield, NY 14787 | Gas Operator | Dec 2023 |
| 30854 | Waggner, Fred | Wichita Falls, TX 76307 | Oil & Gas Operator | Dec 2024 |
| 30855 | Waggner, Robert | Wichita Falls, TX 76307 | Oil & Gas Operator | Dec 2006 |
| 30856 | Waggoner Drilling Company | Bristow, OK 74010-0663 | Oil & Gas Operator | Jan 2014 |
| 30857 | Waggoner Oil & Gas Corp | Enid, OK 73703-1152 | Oil & Gas Operator | Sep 2024 |
| 30858 | Waggoner, John S. | Wichita Falls, TX 76307 | Oil & Gas Operator | May 2017 |
| 30859 | Waggoner, Ralph E. | Windthorst, TX 76389 | Oil & Gas Operator | Dec 2010 |
| 30860 | Waggoner, W. T., Estate | Vernon, TX 76385 | Oil & Gas Operator | Feb 2018 |
| 30861 | Waggoner-Baldridge Energy | | Oil Operator | Jun 1988 |
| 30862 | Waggoner-Baldridge Oper. Co, Inc | Dallas, TX 75206 | Oil & Gas Operator | Jan 1998 |
| 30863 | Wagman Petroleum, Inc. | Dallas, TX 75202 | Oil & Gas Operator | Dec 2024 |
| 30864 | Wagman, Brent A. | Dallas, TX 75202 | Oil & Gas Operator | Dec 2024 |
| 30865 | Wagner & Brown | Midland, TX 79702 | Oil & Gas Operator | Aug 2014 |
| 30866 | Wagner & Brown Limited Partnership | Midland, TX 79701 | Oil & Gas Operator | Feb 2013 |
| 30867 | Wagner & Brown LP | Midland, TX 79702-1714 | Oil & Gas Operator | Aug 2022 |
| 30868 | Wagner & Brown, LTD. | Midland, TX 79702 | Oil & Gas Operator | Aug 2014 |
| 30869 | Wagner & Wagner | Indiana, PA 15701-1273 | Gas Operator | Dec 2012 |
| 30870 | Wagner And Brown LTD Dba Wagner And Brown LTD | | Oil & Gas Operator | Sep 2002 |
| 30871 | Wagner Energy LLC | Enid, OK 73701 | Oil Operator | Aug 2024 |
| 30872 | Wagner Gas And Oil LLC | | Oil Operator | Oct 2024 |
| 30873 | Wagner Oil And Gas | | Oil & Gas Operator | Dec 2016 |
| 30874 | Wagner Oil Company | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2024 |
| 30875 | Wagner, Duer & Co. | Fort Worth, TX 76102 | Oil & Gas Operator | Jan 1999 |
| 30876 | Wagon Wheel Arklatex, LLC | | Oil & Gas Operator | May 2018 |
| 30877 | Wagon Wheel Production Company | Crawford, OK 73638-9502 | Oil & Gas Operator | Jan 2022 |
| 30878 | Wainoco Oil & Ga | | Oil & Gas Operator | Jan 1993 |
| 30879 | Wainoco Oil & Gas Company | Houston, TX 77024 | Oil & Gas Operator | Dec 2005 |
| 30880 | Wakefield Oil Company, Inc. | Winfield, KS 67156 | Oil Operator | Aug 1999 |
| 30881 | Wako Oil Co. LLC | Graham, TX 76450 | Oil Operator | Dec 2024 |
| 30882 | Walbet | Monahans, TX 79756 | Oil & Gas Operator | Dec 1993 |
| 30883 | Walbet, Inc. | Monahans, TX 79756 | Oil & Gas Operator | Dec 2024 |
| 30884 | Walcher Oil, LC | Bellevue, WA 98009 | Oil & Gas Operator | Jul 2024 |
| 30885 | Walcher, Wayne E. | Wichita, KS 67202 | Oil & Gas Operator | May 2024 |
| 30886 | Walden E F | Ada, OK 74820 | Oil & Gas Operator | Aug 2014 |
| 30887 | Waldron David A | Wooster, OH 44691 | Oil & Gas Operator | Dec 2003 |
| 30888 | Waldrop, L. E. | Houston, TX 77024 | Oil & Gas Operator | Jun 1996 |
| 30889 | Walgann Oil & Gas Inc | Sperry, OK 74073 | Oil Operator | Aug 2024 |
| 30890 | Walkabout Operating, LLC | Lubbock, TX 79424 | Oil & Gas Operator | Dec 2024 |
| 30891 | Walker Corporation (The) | Oklahoma City, OK 73156 | Oil & Gas Operator | May 2006 |
| 30892 | Walker David Wayne | Okemah, OK 74859-9731 | Oil & Gas Operator | Sep 2022 |
| 30893 | Walker Energy Group | Houston, TX 77215-1089 | Oil & Gas Operator | Jun 1992 |
| 30894 | Walker Energy, LLC | | Oil & Gas Operator | May 2024 |
| 30895 | Walker Ervin G | | Oil Operator | Jul 1992 |
| 30896 | Walker Explor & Prod Corp | Unknown, UT 99999 | Oil & Gas Operator | Dec 1989 |
| 30897 | Walker Gas Company | Romney, WV 25757-0000 | Oil & Gas Operator | Dec 2018 |
| 30898 | Walker Jeffery Scott | Owasso, OK 74055-7420 | Oil Operator | Aug 2024 |
| 30899 | Walker Jr J C | | Oil & Gas Operator | Oct 1996 |
| 30900 | Walker Keith F | Ardmore, OK 73401 | Oil & Gas Operator | Jan 2019 |