| 4801 | WCC Energy Group LLC | | Oil & Gas Operator | Dec 2023 |
| 4802 | Weatherly Oil & Gas, LLC | Dallas, TX 75206 | Oil & Gas Operator | Apr 2024 |
| 4803 | Weathersby Oil Co. | | Oil Operator | Oct 2001 |
| 4804 | Weaver Bros | | Oil Operator | Nov 1987 |
| 4805 | Weaver Expl & Brock Pet Corp | | Oil & Gas Operator | Apr 1983 |
| 4806 | Weaver Exploration Company | | Oil & Gas Operator | Jun 1991 |
| 4807 | Weaver Oil & Gas Corporation | | Oil & Gas Operator | Dec 1984 |
| 4808 | Webster Energy, Inc. | | Oil & Gas Operator | Jan 1999 |
| 4809 | Wedco Resources Corporation | | Oil & Gas Operator | Jul 1989 |
| 4810 | Weeks Exploration Company | Houston, TX 77063 | Oil & Gas Operator | Aug 1995 |
| 4811 | Weiser-Brown Operating Company | Magnolia, AR 71754 | Oil & Gas Operator | Apr 2024 |
| 4812 | Wenert Trich | | Oil & Gas Operator | Oct 1988 |
| 4813 | Wes-Tex Drilling Company | Abilene, TX 79604 | Oil & Gas Operator | Jan 2000 |
| 4814 | Wesla Oil & Gas Co., Inc. | | Oil & Gas Operator | Jun 2001 |
| 4815 | Wessely Energy Company | Dallas, TX 75206 | Oil & Gas Operator | May 2001 |
| 4816 | Wessely Energy Corporation | | Oil & Gas Operator | Feb 1989 |
| 4817 | West Delta Oil Co. | | Oil & Gas Operator | Jul 2000 |
| 4818 | Westall Oil & Gas Co. | | Oil & Gas Operator | May 1982 |
| 4819 | Westar Energy, Inc. | Midland, TX 79705 | Oil & Gas Operator | Mar 2008 |
| 4820 | Westar Oil & Minerals | | Oil Operator | Feb 1999 |
| 4821 | Western Chief Oil & Gas Company | Graham, TX 76450 | Oil & Gas Operator | Jul 2009 |
| 4822 | Western Exploration, Inc. | | Oil Operator | May 1984 |
| 4823 | Western Gas Resources Inc | Denver, CO 80202-1955 | Oil & Gas Operator | Dec 2007 |
| 4824 | Western Resources, Inc. | | Oil Operator | Jun 1994 |
| 4825 | Westland Oil Development Corp. | Conroe, TX 77305 | Oil & Gas Operator | Mar 2008 |
| 4826 | Westport Oil & Gas Company LP | The Woodlands, TX 77380 | Oil & Gas Operator | Feb 2007 |
| 4827 | Westport Oil And Gas Company Inc | Denver, CO 80202 | Oil & Gas Operator | Feb 2002 |
| 4828 | Wheeler Oil Company | Sperry, OK 74073-9417 | Oil & Gas Operator | Sep 2023 |
| 4829 | Wheless Drilling Company | | Oil & Gas Operator | Dec 1989 |
| 4830 | Wheless Drilling Company Et Al | | Oil & Gas Operator | Dec 1989 |
| 4831 | Wheless DRLG Co &R.M.Bergstein | | Oil Operator | May 1986 |
| 4832 | Wheless Industries, Inc. | Shreveport, LA 71101-5301 | Oil & Gas Operator | Sep 2002 |
| 4833 | Wheless Industries-Pelto Oil | | Oil & Gas Operator | Dec 1989 |
| 4834 | White & Bancroft Et Al | | Oil Operator | Jan 1996 |
| 4835 | White & Ellis Drilling, Inc. | Wichita, KS 67206 | Oil & Gas Operator | Dec 2023 |
| 4836 | White Contracting Co., Inc. | | Oil Operator | Jan 1991 |
| 4837 | White Deer Production Co. Inc. | | Oil Operator | Jan 1999 |
| 4838 | White Horse Energy Inc. | | Oil & Gas Operator | Jun 1989 |
| 4839 | White Marlin Operating Company, LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2024 |
| 4840 | White Oak Operating Company LLC | Houston, TX 77077 | Oil & Gas Operator | Apr 2024 |
| 4841 | White Oil Company | Cement, OK 73017-0515 | Oil Operator | Jun 2002 |
| 4842 | White Operating Co., L.L.C. | | Oil & Gas Operator | Oct 2019 |
| 4843 | White River Operating LLC | Gilmer, TX 75644 | Oil & Gas Operator | Jan 2024 |
| 4844 | White Rock Oil & Gas, LLC | Plano, TX 75024 | Oil & Gas Operator | Apr 2024 |
| 4845 | Whitetail Operators LLC | | Oil Operator | Nov 2021 |
| 4846 | Whitewing & Whitewing Oil LLC | | Oil & Gas Operator | May 2004 |
| 4847 | Whiting Oil And Gas Corporation | Houston, TX 77002 | Oil & Gas Operator | Apr 2024 |
| 4848 | Whiting Petroleum Corporation | Denver, CO 80290 | Oil & Gas Operator | Feb 2024 |
| 4849 | Whitney Oil & Gas, LLC | | Oil & Gas Operator | Dec 2023 |
| 4850 | Whittier Operating Inc. | Houston, TX 77002 | Oil & Gas Operator | May 2007 |
| 4851 | Whittington Operating Company | Houston, TX 77069 | Oil & Gas Operator | Apr 2024 |
| 4852 | Whitton Company, Inc. | | Oil & Gas Operator | Jul 2020 |
| 4853 | WHK, Inc. | | Oil & Gas Operator | Oct 1993 |
| 4854 | Wichita River Oil Corporation | Englewood, CO 80111 | Oil & Gas Operator | Apr 2009 |
| 4855 | Wicker Oil Co | | Oil & Gas Operator | Feb 1992 |
| 4856 | Wilco Oil Gas & Expl. Corp. | | Oil & Gas Operator | Mar 1979 |
| 4857 | Wilcobill Corporation | | Oil Operator | Dec 1986 |
| 4858 | Wilcox Energy Company | | Oil & Gas Operator | Feb 2024 |
| 4859 | Wilcox Operating Company | | Oil Operator | Dec 1989 |
| 4860 | Wilcox Operating Corporation | Shreveport, LA 71115 | Oil & Gas Operator | Apr 2024 |
| 4861 | Wildcat Equipment Co. Inc. | | Oil Operator | Dec 1987 |
| 4862 | Wildcat Midstream Caddo LLC | | Oil Operator | May 2017 |
| 4863 | Wildcat Well Services, LTD. | | Oil Operator | Oct 1989 |
| 4864 | Wildhorse Resources Management Co, LLC | | Oil & Gas Operator | Feb 2018 |
| 4865 | Wildhorse Resources, LLC | Houston, TX 77279 | Oil & Gas Operator | Feb 2015 |
| 4866 | Wilkerson Oil Company | | Oil Operator | Dec 1991 |
| 4867 | Will Energy Corporation | Dallas, TX 75201 | Oil & Gas Operator | Dec 2023 |
| 4868 | Will Haristy, Jr. | | Oil & Gas Operator | Dec 2023 |
| 4869 | Will-Drill Operating, L.L.C. | Shreveport, LA 71105 | Oil & Gas Operator | Apr 2024 |
| 4870 | Will-Drill Production Co., Inc. | Shreveport, LA 71105 | Oil & Gas Operator | Apr 2024 |
| 4871 | William D. Pittman | | Oil & Gas Operator | Jun 1991 |
| 4872 | William F. Powell | | Oil & Gas Operator | Jun 1979 |
| 4873 | William Lagnion | | Oil & Gas Operator | Aug 1998 |
| 4874 | William M. Williams | | Oil Operator | Jun 2018 |
| 4875 | William Marvin Hobbs, SR. | | Oil Operator | Jul 2002 |
| 4876 | Williams Exploration Company | | Oil & Gas Operator | Dec 1986 |
| 4877 | Williams Pressure Service Co. | | Oil Operator | Sep 1985 |
| 4878 | Williams-Cody, Inc. | Houston, TX 77060 | Oil & Gas Operator | May 1994 |
| 4879 | Williams-Robinson | | Oil Operator | Mar 1988 |
| 4880 | Williamson & Smitherman | | Oil & Gas Operator | Dec 2008 |
| 4881 | Williamson Oil & Gas, Inc. | Shreveport, LA 71166 | Oil & Gas Operator | Dec 2023 |
| 4882 | Williamson Pumping Ser., Inc. | | Oil Operator | Dec 2023 |
| 4883 | Willow Springs Production, Inc. | Longview, TX 75606 | Oil & Gas Operator | Sep 1999 |
| 4884 | Wilson Production Co Of La,Inc | | Oil & Gas Operator | Apr 1991 |
| 4885 | Wilson Well Service | Loco, OK 73442-0114 | Oil & Gas Operator | Mar 2018 |
| 4886 | Win Oil Company | Russell, KS 67665 | Oil & Gas Operator | Jul 2021 |
| 4887 | Winbeau Oil & Gas Co. | | Oil & Gas Operator | Oct 2013 |
| 4888 | Winchester Energy Operating Co. | Austin, TX 78746 | Oil & Gas Operator | Apr 2024 |
| 4889 | Winchester Production Company | Shreveport, LA 71129 | Oil & Gas Operator | Nov 2008 |
| 4890 | Windfohr Oil Company | | Oil & Gas Operator | May 1980 |
| 4891 | Windham Oil Company | | Oil & Gas Operator | Dec 1987 |
| 4892 | Windham Oil Corp. | | Oil & Gas Operator | Jan 2024 |
| 4893 | Windrush Operating Co., L.L.C. | Longville, LA 70652 | Oil & Gas Operator | Apr 2024 |
| 4894 | Windrush Operating Company | | Oil & Gas Operator | Jan 2009 |
| 4895 | Windsor Gas Corporation | | Oil & Gas Operator | Aug 1989 |
| 4896 | Wintershall Corporation | | Oil & Gas Operator | Oct 1989 |
| 4897 | Wintershall Oil & Gas Co | | Oil & Gas Operator | Feb 1980 |
| 4898 | Wintershall Oil & Gas Corp | Houston, TX 77027 | Oil & Gas Operator | Jul 1989 |
| 4899 | Winwell, L.L.C. | Shreveport, LA 71101 | Oil & Gas Operator | Dec 2007 |
| 4900 | Wisenbaker Production Company | Tyler, TX 75702 | Oil & Gas Operator | Oct 2011 |