| 11801 | WCT Leasing Co. | Austin, TX 78734 | Oil & Gas Operator | Apr 2019 |
| 11802 | WCWB Energy, LLC | Midland, TX 79701 | Oil Operator | Sep 2015 |
| 11803 | Weakland Investments, Inc. | Denver, CO 80215 | Oil & Gas Operator | Dec 2024 |
| 11804 | Weatherly Oil & Gas, LLC | Dallas, TX 75206 | Oil & Gas Operator | Dec 2024 |
| 11805 | Weathers Exploration, Inc. | Tyler, TX 75702 | Oil & Gas Operator | Dec 2024 |
| 11806 | Weatherston, George D. | San Antonio, TX 78217 | Oil & Gas Operator | Oct 2001 |
| 11807 | Weaver & Sharp | Corpus Chrsti, TX 78403 | Oil & Gas Operator | Mar 1997 |
| 11808 | Weaver Global Operating, LLC | Colleyville, TX 76034 | Oil Operator | Dec 2024 |
| 11809 | Web Well Tending Service, Inc. | Vienna, WV 26105 | Oil & Gas Operator | Nov 2011 |
| 11810 | Weber Energy Corporation | Dallas, TX 75219 | Oil & Gas Operator | Feb 2017 |
| 11811 | Weeks Exploration Company | Houston, TX 77063 | Oil & Gas Operator | Aug 1995 |
| 11812 | Wefco, Inc. | Pampa, TX 79065 | Oil & Gas Operator | May 1993 |
| 11813 | Wehunt Oil Company, Inc. | Dallas, TX 75376 | Oil & Gas Operator | Nov 2002 |
| 11814 | Weibye, Carolyn S. | Houston, TX 77098 | Oil & Gas Operator | Dec 2024 |
| 11815 | Weinkauf Petroleum, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Sep 2024 |
| 11816 | Weinstrom Petroleum | Devine, TX 78016 | Oil Operator | Dec 2024 |
| 11817 | Weiser-Brown Oil Co | Magnolia, AR 71754 | Oil Operator | Jul 2024 |
| 11818 | Weiser-Brown Operating Company | Magnolia, AR 71754 | Oil & Gas Operator | Dec 2024 |
| 11819 | Weiss Oil Co. | Streator, IL 61364 | Oil & Gas Operator | Dec 1997 |
| 11820 | Wejco, Inc. | Rising Star, TX 76471 | Oil & Gas Operator | Dec 2024 |
| 11821 | Welcome Well Serv. & Boykin Bros | Abilene, TX 79604 | Oil & Gas Operator | Apr 1995 |
| 11822 | Welder Exploration & Prod., Inc. | San Antonio, TX 78212 | Oil & Gas Operator | Dec 2022 |
| 11823 | Welder Operating, Inc. | San Antonio, TX 78205 | Oil & Gas Operator | Mar 2001 |
| 11824 | Welder-Heyer Energy, Inc. | San Antonio, TX 78205 | Oil & Gas Operator | Feb 2001 |
| 11825 | Welderxp LTD. | San Antonio, TX 78212 | Oil & Gas Operator | Dec 2024 |
| 11826 | Weldon Corporation | Houston, TX 77056 | Oil Operator | Feb 2020 |
| 11827 | Welhausen Operating Co., Inc. | Beeville, TX 78104 | Oil & Gas Operator | Aug 2003 |
| 11828 | Welhausen Operating Company, LP | Beeville, TX 78104 | Oil & Gas Operator | Nov 2016 |
| 11829 | Well Recycling Company | Olney, TX 76374 | Oil Operator | Aug 2005 |
| 11830 | Well-Co Solutions, LLC | Batson, TX 77519 | Oil Operator | Dec 2024 |
| 11831 | Wells Oilfield Services, Inc. | Graham, TX 76450 | Oil & Gas Operator | Dec 2024 |
| 11832 | Wellstar Corporation | Northglenn, CO 80233 | Oil & Gas Operator | Sep 2024 |
| 11833 | Wen-Be | Jourdanton, TX 78026 | Oil & Gas Operator | Dec 2024 |
| 11834 | Wendy Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Dec 2024 |
| 11835 | Wenexco, Inc. | Streetman, TX 75859 | Oil & Gas Operator | Dec 2024 |
| 11836 | Wentworth Energy, Inc. | Palestine, TX 75801 | Oil & Gas Operator | Jun 2009 |
| 11837 | Werner Oil, Inc. | Borger, TX 79008 | Oil & Gas Operator | Sep 1996 |
| 11838 | Wernette, Louis J. | Hondo, TX 78861 | Oil & Gas Operator | Sep 2023 |
| 11839 | Wes Pro, Inc. | Jacksboro, TX 76458 | Oil Operator | Jan 2013 |
| 11840 | Wes-Mor Drilling, Inc. | Graham, TX 76450 | Oil & Gas Operator | Dec 2024 |
| 11841 | Wes-Mor Oil & Gas, Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 1994 |
| 11842 | Wes-Tex Drilling Company | Abilene, TX 79604 | Oil & Gas Operator | Jan 2000 |
| 11843 | Wes-Tex Oil Co. (I) | Bangs, TX 76823 | Oil & Gas Operator | Dec 2024 |
| 11844 | West Bay Exploration Company | Muenster, TX 76252 | Oil & Gas Operator | Aug 2024 |
| 11845 | West Co., The | Wichita Falls, TX 76307 | Oil & Gas Operator | Jun 2016 |
| 11846 | West Inland Energy, Inc. | N Richlnd HLS, TX 76182 | Oil & Gas Operator | Dec 2024 |
| 11847 | West Mountain Operating Co, Inc. | Longview, TX 75604 | Oil & Gas Operator | Feb 2019 |
| 11848 | West Oil Resources, LLC | Liberty Hill, TX 78642 | Oil & Gas Operator | Dec 2024 |
| 11849 | West Petroleum Corp. | San Antonio, TX 78205 | Oil & Gas Operator | Oct 2009 |
| 11850 | West Texas Diversified Interests | Eastland, TX 76448 | Oil & Gas Operator | Jun 2006 |
| 11851 | West Texas Exploration Co. | Graham, TX 76450 | Oil & Gas Operator | May 1996 |
| 11852 | West Texas Oil And Gas Corp. | Houston, TX 77056 | Oil & Gas Operator | Feb 2014 |
| 11853 | West Texas Oil And Gas Oper.,Inc | Houston, TX 77046 | Oil & Gas Operator | Jul 2024 |
| 11854 | West Texas Royalties, Inc. | Graham, TX 76450 | Oil & Gas Operator | Dec 2024 |
| 11855 | West Texas Syndicate LLC. | Corpus Chrsti, TX 78414 | Oil Operator | Dec 2024 |
| 11856 | West Tuleta Operating Corp. | Tuleta, TX 78162 | Oil & Gas Operator | May 2019 |
| 11857 | West,Gordon T.Jr. & Rugeley,Stan | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2019 |
| 11858 | West-States Energy, Inc. | Rimrock, AZ 86335 | Oil Operator | Dec 2024 |
| 11859 | Westar Energy, Inc. | Midland, TX 79705 | Oil & Gas Operator | Mar 2008 |
| 11860 | Westbrook Oil & Gas Co. Inc. | Gainesville, TX 76240 | Oil & Gas Operator | Dec 2024 |
| 11861 | Westco Oil Company | Ozona, TX 76943 | Oil & Gas Operator | Dec 2024 |
| 11862 | Westech Energy Corporation | Denver, CO 80237 | Oil & Gas Operator | Mar 2011 |
| 11863 | Westerly Exploration, Inc. | Houston, TX 77256 | Oil & Gas Operator | Dec 2024 |
| 11864 | Western Chief Oil & Gas Company | Graham, TX 76450 | Oil & Gas Operator | Jul 2009 |
| 11865 | Western Chief Operating, L.L.C. | Graham, TX 76450 | Oil & Gas Operator | Dec 2024 |
| 11866 | Western Disposal Systems, Inc. | Corrales, NM 87048 | Oil Operator | Dec 2024 |
| 11867 | Western DRLG. Co. | Longview, TX 75604 | Oil & Gas Operator | Nov 1996 |
| 11868 | Western Energy Group, LLC | Leander, TX 78641 | Oil & Gas Operator | Dec 2024 |
| 11869 | Western Energy Management, Inc. | Austin, TX 78716 | Oil & Gas Operator | Aug 1997 |
| 11870 | Western Field Exploration, Inc. | Dilley, TX 78017 | Oil & Gas Operator | Dec 2024 |
| 11871 | Western Gas Resources Storage | Denver, CO 80234 | Oil & Gas Operator | Jun 1999 |
| 11872 | Western Global Oil, Inc | Deerfld Beach, FL 33442 | Oil Operator | Dec 2024 |
| 11873 | Western Gulf Oil & Gas Inc. | Dallas, TX 75360 | Oil & Gas Operator | Jul 2000 |
| 11874 | Western Gulf Oil & Gas, LLC | Bishop, TX 78343 | Oil & Gas Operator | Dec 2024 |
| 11875 | Western Natural Gas Company | Shelby, MT 59474 | Oil & Gas Operator | Jul 2024 |
| 11876 | Western Oil Company | Midland, TX 79702 | Oil & Gas Operator | Jul 2014 |
| 11877 | Western Oil Producers Inc | Roswell, NM 88202 | Oil & Gas Operator | Jul 2005 |
| 11878 | Western Petroleum Company Inc | Tulsa, OK 74170-2676 | Oil & Gas Operator | Apr 2020 |
| 11879 | Western Petroleum Resources, Inc | Dallas, TX 75219 | Oil & Gas Operator | May 2021 |
| 11880 | Western Plains Resources LLC | Garden City, KS 67846 | Oil & Gas Operator | Jul 2024 |
| 11881 | Western Pride Resources, Inc. | Jacksboro, TX 76458 | Oil & Gas Operator | Jan 2011 |
| 11882 | Western Production Company | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2024 |
| 11883 | Western Reserves Corporation | Abilene, TX 79608 | Oil & Gas Operator | Jan 2008 |
| 11884 | Western Reserves Oil Co Inc | Midland, TX 79705 | Oil & Gas Operator | Oct 2020 |
| 11885 | Western Sky Oil & Gas | Abilene, TX 79604 | Oil & Gas Operator | Aug 2003 |
| 11886 | Westgate Petroleum, Inc. | Fritch, TX 79036 | Oil & Gas Operator | Nov 2001 |
| 11887 | Westhall Associates, Inc. | Corpus Chrsti, TX 78477 | Oil & Gas Operator | Aug 1997 |
| 11888 | Westico Energy Co. | Abilene, TX 79605 | Oil & Gas Operator | Nov 2004 |
| 11889 | Westlake Energy Consultants Corp | Thousand Oaks, CA 91362 | Oil & Gas Operator | Aug 2003 |
| 11890 | Westland Oil Development Corp. | Conroe, TX 77305 | Oil & Gas Operator | Mar 2008 |
| 11891 | Westlands Resources Corporation | Monrovia, CA 91016 | Oil & Gas Operator | Dec 2024 |
| 11892 | Westoil LLC | Austin, TX 78747 | Oil & Gas Operator | Dec 2024 |
| 11893 | Westover Production Co., LLC | Kermit, TX 79745 | Oil & Gas Operator | Dec 2024 |
| 11894 | Westpark Petroleum, Inc. | Austin, TX 78755 | Oil & Gas Operator | Dec 2024 |
| 11895 | Westport Oil & Gas Company LP | The Woodlands, TX 77380 | Oil & Gas Operator | Feb 2007 |
| 11896 | Westport Oil And Gas Company Inc | Denver, CO 80202 | Oil & Gas Operator | Feb 2002 |
| 11897 | Westridge Oil & Gas Properties | Mineral Wells, TX 76068 | Oil & Gas Operator | Dec 2024 |
| 11898 | Westside Energy Op. Co., LP | Oklahoma City, OK 73142 | Oil & Gas Operator | Jun 2008 |
| 11899 | Weststar Oil & Gas Inc | Edmond, OK 73013 | Oil & Gas Operator | Sep 2024 |
| 11900 | Weststar Operating Company | Santa Anna, TX 76878 | Oil & Gas Operator | Mar 2015 |