| 31001 | Weaver Exploration Company | | Oil & Gas Operator | Jun 1991 |
| 31002 | Weaver Global Operating, LLC | Colleyville, TX 76034 | Oil Operator | Jul 2026 |
| 31003 | Weaver Oil & Gas Corporation | | Oil & Gas Operator | Dec 1984 |
| 31004 | Weaver Oil Inc | | Oil & Gas Operator | Oct 2011 |
| 31005 | Weaver, David H. | Penn Yan, NY 14527 | Gas Operator | Dec 2025 |
| 31006 | Web Oil Inc | Millersburg, OH 44654 | Oil & Gas Operator | Dec 2013 |
| 31007 | Webb Donna Delan Dba Petrodudes | Crescent, OK 73028 | Oil & Gas Operator | Feb 2026 |
| 31008 | Webb Jess Oil Producer | | Oil Operator | Sep 2014 |
| 31009 | Webb John L Estate A Partner | Wichita Falls, TX 76302 | Oil Operator | May 2008 |
| 31010 | Webb Resources Inc | | Oil & Gas Operator | Dec 1985 |
| 31011 | Webb Roy C | Davis, OK 73030 | Oil & Gas Operator | Apr 2026 |
| 31012 | Webb, Max D | Farmington, NM 87499 | Oil Operator | Dec 2022 |
| 31013 | Webbco | Bray, OK 73012 | Oil Operator | Aug 1998 |
| 31014 | Webber Wesley | Davis, OK 73030 | Oil & Gas Operator | Oct 2009 |
| 31015 | Webco Oil Compan | | Oil Operator | Sep 1989 |
| 31016 | Webco Oil Company, Inc. | Hoisington, KS 67544 | Oil Operator | Mar 2026 |
| 31017 | Weber Energy Corporation | Dallas, TX 75219 | Oil & Gas Operator | Feb 2017 |
| 31018 | Weber Four Oil Co., Inc. | Hoisington, KS 67544 | Oil Operator | Mar 2026 |
| 31019 | Weber Paul A | N Canton, OH 44720 | Oil & Gas Operator | Dec 1994 |
| 31020 | Webster Energy, Inc. | | Oil & Gas Operator | Jan 1999 |
| 31021 | Webster Joe | | Oil Operator | Apr 1987 |
| 31022 | Webster Oil LLC | Leon, KS 67074 | Oil Operator | Mar 2026 |
| 31023 | Wedco Resources Corporation | | Oil & Gas Operator | Jul 1989 |
| 31024 | Wedel, Darold | Canton, KS 67428 | Oil Operator | Apr 2002 |
| 31025 | Wedgewood Resources USA Inc | Vancouver, BC V6B1V-9000 | Oil & Gas Operator | Jul 2003 |
| 31026 | Weeks Exploration Company | Houston, TX 77063 | Oil & Gas Operator | Aug 1995 |
| 31027 | Weeks, VIrginia | Hoisington, KS 67544 | Oil Operator | Mar 2002 |
| 31028 | Wefco, Inc. | Pampa, TX 79065 | Oil & Gas Operator | May 1993 |
| 31029 | Weger Petroleum Corp | Dallas, TX 75251 | Oil Operator | Jan 1987 |
| 31030 | Wehlu Producers Inc | Edmond, OK 73083-5278 | Oil & Gas Operator | Sep 2002 |
| 31031 | Wehmeyer, Gerald | Independence, KS 67301 | Oil Operator | Aug 2024 |
| 31032 | Wehunt Oil Company, Inc. | Dallas, TX 75376 | Oil & Gas Operator | Nov 2002 |
| 31033 | Weibye, Carolyn S. | Houston, TX 77098 | Oil & Gas Operator | Jul 2026 |
| 31034 | Weigel Oil Company, LLC | Gorham, KS 67640 | Oil Operator | Mar 2026 |
| 31035 | Weigel V Francis | | Oil Operator | Mar 1994 |
| 31036 | Weigel, V. Francis - Family Partnership | Gorham, KS 67640 | Oil Operator | Jul 2004 |
| 31037 | Weil Resources, Inc. | Lancaster, NY 14086 | Oil & Gas Operator | Dec 2024 |
| 31038 | Weilert Enterpri | | Oil Operator | Sep 1988 |
| 31039 | Weilert Michael | | Oil Operator | Oct 1993 |
| 31040 | Weilert, S.R. | Wichita, KS 67216 | Oil Operator | Oct 1998 |
| 31041 | Weimer & Fitzhugh | Tulsa, OK 74103-4102 | Oil & Gas Operator | Dec 1993 |
| 31042 | Weinkauf Petroleum, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | May 2026 |
| 31043 | Weins Horton L | Sand Springs, OK 74063 | Oil & Gas Operator | Apr 2026 |
| 31044 | Weinstrom Petroleum | Devine, TX 78016 | Oil Operator | Jul 2026 |
| 31045 | Weinsz Oil & Gas Inc | North Canton, OH 44720 | Oil & Gas Operator | Dec 2003 |
| 31046 | Weir Oil Co. Inc. | | Oil & Gas Operator | Dec 2007 |
| 31047 | Weise, Kevin L. And Kathy L. | Sinclairville, NY 14782 | Gas Operator | Dec 2025 |
| 31048 | Weiser-Brown Oil Co | Magnolia, AR 71754 | Oil Operator | Jan 2025 |
| 31049 | Weiser-Brown Operating Company | Magnolia, AR 71754 | Oil & Gas Operator | Jul 2026 |
| 31050 | Weiss Drilling Inc | Jerusalem, OH 43747 | Oil & Gas Operator | Dec 2025 |
| 31051 | Weiss Oil Co. | Streator, IL 61364 | Oil & Gas Operator | Dec 1997 |
| 31052 | Weitzman Irvin | | Oil & Gas Operator | Sep 1988 |
| 31053 | Wejco, Inc. | Rising Star, TX 76471 | Oil & Gas Operator | Jul 2026 |
| 31054 | Welch Family LLC | Drumright, OK 74030 | Oil Operator | May 2026 |
| 31055 | Welch Family Trust | Ada, OK 74820-9643 | Oil & Gas Operator | Apr 2015 |
| 31056 | Welch Oil & Gas Company | Parkersburg, WV 26104 | Oil & Gas Operator | Jun 2013 |
| 31057 | Welcome Well Serv. & Boykin Bros | Abilene, TX 79604 | Oil & Gas Operator | Apr 1995 |
| 31058 | Weldbank Energy Corp | Warren, PA 16365-5114 | Oil & Gas Operator | Dec 2025 |
| 31059 | Welder Exploration & Prod., Inc. | San Antonio, TX 78212 | Oil & Gas Operator | Dec 2022 |
| 31060 | Welder Operating, Inc. | San Antonio, TX 78205 | Oil & Gas Operator | Mar 2001 |
| 31061 | Welder-Heyer Energy, Inc. | San Antonio, TX 78205 | Oil & Gas Operator | Feb 2001 |
| 31062 | Welderxp LTD. | San Antonio, TX 78212 | Oil & Gas Operator | Jul 2026 |
| 31063 | Weldon Corporation | Houston, TX 77056 | Oil Operator | Feb 2020 |
| 31064 | Welhausen Operating Co., Inc. | Beeville, TX 78104 | Oil & Gas Operator | Aug 2003 |
| 31065 | Welhausen Operating Company, LP | Beeville, TX 78104 | Oil & Gas Operator | Nov 2016 |
| 31066 | Well Management Services Inc | | Oil & Gas Operator | Dec 2001 |
| 31067 | Well Recycling Company | Olney, TX 76374 | Oil Operator | Aug 2005 |
| 31068 | Well Renewal Inc | Tulsa, OK 74103-0091 | Oil Operator | Mar 2015 |
| 31069 | Well Tech Oil And Gas, Inc. | Wichita, KS 67206 | Oil Operator | Sep 2020 |
| 31070 | Well Water Management | | Oil & Gas Operator | Dec 2025 |
| 31071 | Well-Co Solutions, LLC | Batson, TX 77519 | Oil & Gas Operator | Jul 2026 |
| 31072 | Wellco Energy Inc | Harrah, OK 73045 | Oil & Gas Operator | Apr 2026 |
| 31073 | Wellco Production LLC | Purcell, OK 73080-6833 | Oil & Gas Operator | Apr 2026 |
| 31074 | Wellington Operating Company | | Oil & Gas Operator | Apr 2026 |
| 31075 | Wellmaster Production Co LLC | | Oil & Gas Operator | Jul 2015 |
| 31076 | Wells Allen W | Barnsdall, OK 74002 | Oil & Gas Operator | Apr 2026 |
| 31077 | Wells Edward K | Sapulpa, OK 74066-4243 | Oil & Gas Operator | Jun 2004 |
| 31078 | Wells Energy Com | | Oil & Gas Operator | Mar 1994 |
| 31079 | Wells Jimme D | Ponca City, OK 74604 | Oil Operator | Apr 2026 |
| 31080 | Wells Oil Compan | | Gas Operator | Sep 1984 |
| 31081 | Wells Oil, LLC | Gridley, KS 66852 | Oil Operator | Mar 2026 |
| 31082 | Wells Oilfield Services, Inc. | Graham, TX 76450 | Oil & Gas Operator | Jul 2026 |
| 31083 | Wells, Michael E. | Springville, NY 14141 | Gas Operator | Dec 2025 |
| 31084 | Wells-Battelstei | | Oil & Gas Operator | Mar 1993 |
| 31085 | Wells-Battelstein O&G, Inc. | | Gas Operator | Dec 1986 |
| 31086 | Wellspring Oil, LLC | | Oil Operator | Jun 2026 |
| 31087 | Wellstar Corporation | Northglenn, CO 80233 | Oil & Gas Operator | May 2026 |
| 31088 | Wellsville Oil C | | Oil Operator | Dec 1996 |
| 31089 | Wellsville Oil Co | Wellsville, KS 66092 | Oil Operator | Sep 2000 |
| 31090 | Wellwin Drilling | | Oil & Gas Operator | Dec 1994 |
| 31091 | Wellwin Drilling Corporation | Wellington, KS 67152 | Oil & Gas Operator | Mar 2026 |
| 31092 | Welsh Hills Oil & Gas Co | Newark, OH 43055 | Oil & Gas Operator | Dec 1999 |
| 31093 | Wem Joint Venture | Gillette, WY 82716 | Oil & Gas Operator | Sep 2015 |
| 31094 | Wem Operating, LLC | Provo, UT 84604 | Oil & Gas Operator | May 2026 |
| 31095 | Wema Natural Res, Inc | Sharon Grove, KY 42280 | Oil Operator | Dec 2021 |
| 31096 | Wen-Be | Jourdanton, TX 78026 | Oil & Gas Operator | Jul 2026 |
| 31097 | Wendy Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Jul 2026 |
| 31098 | Wenert Trich | | Oil & Gas Operator | Oct 1988 |
| 31099 | Wenert Trich Oil | | Oil & Gas Operator | Jul 1990 |
| 31100 | Wenexco, Inc. | Streetman, TX 75859 | Oil & Gas Operator | Jul 2026 |