| 11901 | Voskamp Exploration, Inc. | Midland, TX 79708 | Oil & Gas Operator | Sep 2010 |
| 11902 | Votaw Production Company LLC | Houston, TX 77007 | Oil Operator | Apr 2025 |
| 11903 | Voth Operating, Inc. | Muenster, TX 76252 | Oil & Gas Operator | Oct 2005 |
| 11904 | Voyager Gas Corporation | Spring, TX 77379 | Oil & Gas Operator | Feb 2012 |
| 11905 | Voyles, James | Wichita Falls, TX 76301 | Oil & Gas Operator | Jun 1996 |
| 11906 | VRK Oil And Gas, Inc. | Arlington, TX 76016 | Oil & Gas Operator | Mar 2014 |
| 11907 | VSP Operating, LLC | Castle Rock, CO 80108 | Oil Operator | Apr 2025 |
| 11908 | VT VIstatex Energy LLC | Houston, TX 77056 | Oil & Gas Operator | Apr 2025 |
| 11909 | Vtex Energy, Inc. | Houston, TX 77057 | Oil & Gas Operator | Apr 2025 |
| 11910 | VTX Energy Operating, LLC | Austin, TX 78730 | Oil & Gas Operator | Apr 2025 |
| 11911 | Vul-Tex Corporation | Pampa, TX 79065 | Oil & Gas Operator | Apr 2025 |
| 11912 | VX Operating, LLC | Abilene, TX 79605 | Oil & Gas Operator | Apr 2025 |
| 11913 | W & T Offshore, Inc. | Houston, TX 77057 | Oil & Gas Operator | Apr 2025 |
| 11914 | W & T Offshore, L.L.C. | Houston, TX 77046 | Gas Operator | Jan 1999 |
| 11915 | W & W Oil & Gas LLC | Wynona, OK 74084 | Oil Operator | Jan 2025 |
| 11916 | W & W Oil, Inc. | Lovington, NM 88260 | Oil & Gas Operator | May 1999 |
| 11917 | W & W Production, LLC | Wichita Falls, TX 76308 | Oil Operator | Apr 2025 |
| 11918 | W & W Properties | Westbrook, TX 79565 | Oil & Gas Operator | Aug 2018 |
| 11919 | W & W Services, Inc. | Palestine, TX 75802 | Oil & Gas Operator | Mar 2008 |
| 11920 | W T X Capital Investments, LLC | Wichita Falls, TX 76308 | Oil Operator | Apr 2025 |
| 11921 | W&S Energy LLC | Woodward, OK 73801 | Oil & Gas Operator | Sep 2022 |
| 11922 | W&W Oil And Gas, Inc. | Muenster, TX 76252 | Oil Operator | Apr 2025 |
| 11923 | W&W Oil Co | Denver City, TX 79323 | Oil Operator | Jun 2002 |
| 11924 | W-N Energy Corp | Tulsa, OK 74121-1468 | Oil & Gas Operator | Nov 1994 |
| 11925 | W. B. D. Oil & Gas Company | Pampa, TX 79066 | Oil & Gas Operator | Dec 1995 |
| 11926 | W. R. G. Oil & Gas, Inc. | Arlington, TX 76013 | Oil & Gas Operator | Dec 1993 |
| 11927 | W. R. Williams, Inc. | Amarillo, TX 79105 | Gas Operator | Dec 2019 |
| 11928 | W.A. Oil Co. | Andrews, TX 79714 | Oil & Gas Operator | Aug 1997 |
| 11929 | W.B.D. Oil And Gas Inc. | Pampa, TX 79066 | Oil & Gas Operator | Oct 2019 |
| 11930 | W.D. Oil Company | Pampa, TX 79066 | Oil & Gas Operator | Oct 2001 |
| 11931 | W.E.S. Operating Company, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Nov 2011 |
| 11932 | W.H.D., Inc. | Euless, TX 76039 | Oil & Gas Operator | Aug 1998 |
| 11933 | W.I. Royalty, Inc. | Abilene, TX 79601 | Oil & Gas Operator | Nov 2009 |
| 11934 | W.L. Ranch Inc. | Caldwell, TX 77836 | Oil & Gas Operator | Apr 2025 |
| 11935 | W.O.G., Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 11936 | W.P.P.I. Inc. | Westbrook, TX 79565 | Oil & Gas Operator | Jul 2013 |
| 11937 | W.R. Guffey LLC | Dallas, TX 75206 | Oil & Gas Operator | Jul 2020 |
| 11938 | W.T. Waggoner Estate, Inc. | Vernon, TX 76385 | Oil Operator | Apr 2025 |
| 11939 | W.W. Energy | Luling, TX 78648 | Oil & Gas Operator | Apr 2025 |
| 11940 | W.W.R. Holding, LLC | Coleman, TX 76834 | Oil & Gas Operator | Mar 2008 |
| 11941 | Wacker Oil Inc | Houston, TX 77002 | Oil & Gas Operator | Aug 1996 |
| 11942 | Waco Petro, LP | Sulphur SPGS, TX 75483 | Oil Operator | Sep 2015 |
| 11943 | Waco Production Co. | Archer City, TX 76351 | Oil & Gas Operator | Sep 1993 |
| 11944 | Waddell, Kent | Abilene, TX 79606 | Oil & Gas Operator | Nov 2010 |
| 11945 | Wade Operating | Breckenridge, TX 76424 | Oil & Gas Operator | Apr 2025 |
| 11946 | Wade, Jim | Olney, TX 76374 | Oil & Gas Operator | Apr 2025 |
| 11947 | Wadi Exploration&Production,LLC | San Clemente, CA 92672 | Oil & Gas Operator | Jul 2020 |
| 11948 | Wadi Operating, LLC | Houston, TX 77079 | Oil & Gas Operator | Apr 2025 |
| 11949 | Wadi Petroleum Inc | Houston, TX 77014 | Oil & Gas Operator | May 2018 |
| 11950 | Waelder Oil & Gas, Inc. | Fort Smith, AR 72903 | Oil & Gas Operator | Jan 2025 |
| 11951 | Waggner, Fred | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2025 |
| 11952 | Waggner, Robert | Wichita Falls, TX 76307 | Oil & Gas Operator | Dec 2006 |
| 11953 | Waggoner, John S. | Wichita Falls, TX 76307 | Oil & Gas Operator | May 2017 |
| 11954 | Waggoner, Ralph E. | Windthorst, TX 76389 | Oil & Gas Operator | Dec 2010 |
| 11955 | Waggoner, W. T., Estate | Vernon, TX 76385 | Oil & Gas Operator | Feb 2018 |
| 11956 | Waggoner-Baldridge Oper. Co, Inc | Dallas, TX 75206 | Oil & Gas Operator | Jan 1998 |
| 11957 | Wagman Petroleum, Inc. | Dallas, TX 75202 | Oil & Gas Operator | Apr 2025 |
| 11958 | Wagman, Brent A. | Dallas, TX 75202 | Oil & Gas Operator | Apr 2025 |
| 11959 | Wagner & Brown, LTD. | Midland, TX 79702 | Oil & Gas Operator | Aug 2014 |
| 11960 | Wagner Energy LLC | Enid, OK 73701 | Oil Operator | Jan 2025 |
| 11961 | Wagner Oil Company | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2025 |
| 11962 | Wagner, Duer & Co. | Fort Worth, TX 76102 | Oil & Gas Operator | Jan 1999 |
| 11963 | Wainoco Oil & Gas Company | Houston, TX 77024 | Oil & Gas Operator | Dec 2005 |
| 11964 | Wako Oil Co. LLC | Graham, TX 76450 | Oil Operator | Apr 2025 |
| 11965 | Walbet | Monahans, TX 79756 | Oil & Gas Operator | Dec 1993 |
| 11966 | Walbet, Inc. | Monahans, TX 79756 | Oil & Gas Operator | Apr 2025 |
| 11967 | Waldrop, L. E. | Houston, TX 77024 | Oil & Gas Operator | Jun 1996 |
| 11968 | Walkabout Operating, LLC | Lubbock, TX 79424 | Oil & Gas Operator | Apr 2025 |
| 11969 | Walker Oil & Gas | Early, TX 76802 | Oil & Gas Operator | Dec 2002 |
| 11970 | Walker Oil And Gas LTD | Snyder, TX 79550 | Oil Operator | Apr 2025 |
| 11971 | Walker Operating (I) | Wichita Falls, TX 76308 | Oil Operator | Apr 2025 |
| 11972 | Walker'S Well Service | Gladewater, TX 75647 | Oil & Gas Operator | Aug 2003 |
| 11973 | Walker, Daniel J. | La Vernia, TX 78121 | Oil Operator | Apr 2025 |
| 11974 | Walker, Harrel L. | La Vernia, TX 78121 | Oil & Gas Operator | May 2023 |
| 11975 | Walker, Kent | Midland, TX 79704 | Oil & Gas Operator | Jun 2004 |
| 11976 | Walker, Tigner | Shreveport, LA 71138 | Oil & Gas Operator | Feb 2005 |
| 11977 | Walking X Oil Co. | Whiteface, TX 79379 | Oil & Gas Operator | Apr 2025 |
| 11978 | Wallace Oil & Gas Inc | Oklahoma City, OK 73156 | Oil & Gas Operator | Apr 2025 |
| 11979 | Wallen Production Co. | Midland, TX 79702 | Oil & Gas Operator | Aug 1996 |
| 11980 | Waller, C.W. Oil Co. | Albany, TX 76430 | Oil & Gas Operator | Apr 2025 |
| 11981 | Wallis Energy, Inc. | Austin, TX 78746 | Oil & Gas Operator | Apr 2025 |
| 11982 | Walls Energy, Inc. | Pampa, TX 79066 | Oil & Gas Operator | Aug 2003 |
| 11983 | Walls, G. M. & Frances, Inc. | Pampa, TX 79066 | Oil & Gas Operator | Apr 2025 |
| 11984 | Walsh & Watts Inc | Aledo, TX 76008 | Oil & Gas Operator | Apr 2025 |
| 11985 | Walsh Petroleum, Inc. | Midland, TX 79702 | Oil & Gas Operator | Dec 2022 |
| 11986 | Walsh Resources, Inc. | Tyler, TX 75713 | Oil & Gas Operator | Apr 2025 |
| 11987 | Walsh, F H Jr. Operating Co. Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Oct 2019 |
| 11988 | Walsh, F. Howard, Jr. | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 1994 |
| 11989 | Walter Exploration Company | Dallas, TX 75206 | Oil & Gas Operator | Apr 2025 |
| 11990 | Walter Exploration Inc | Dallas, TX 75206 | Oil & Gas Operator | May 2009 |
| 11991 | Walter H. Husfeld Oil Co LLC | Bowie, TX 76230 | Oil & Gas Operator | Apr 2025 |
| 11992 | Walter Oil & Gas Corporation | Houston, TX 77002 | Oil & Gas Operator | Apr 2025 |
| 11993 | Walterscheid, A. D. | Muenster, TX 76252 | Oil & Gas Operator | Dec 2014 |
| 11994 | Walterscheid, R. F. | Muenster, TX 76252 | Oil & Gas Operator | Oct 1993 |
| 11995 | Walton Producing Company | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 2005 |
| 11996 | Walton Producing Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Apr 2025 |
| 11997 | Walton Properties LTD. | Midland, TX 79702 | Oil & Gas Operator | Feb 2004 |
| 11998 | Walton, James A. | Midland, TX 79702 | Oil & Gas Operator | Oct 1994 |
| 11999 | Walton, W. W. | Breckenridge, TX 76424 | Oil & Gas Operator | Sep 1994 |
| 12000 | Wam Energy Corporation | Dallas, TX 75206 | Oil & Gas Operator | Dec 2016 |