| 701 | Thomas Oil Company | | Oil & Gas Operator | Dec 2008 |
| 702 | Tiger Oil, Inc. | Canal Wincheste, OH 43110 | Oil & Gas Operator | Dec 2007 |
| 703 | TNG, Inc. | | Oil & Gas Operator | Dec 1996 |
| 704 | Toney Branch Gas Company | Huntington, WV 25702-0086 | Gas Operator | Dec 2021 |
| 705 | Tower Drilling Corporation | | Oil & Gas Operator | Dec 2021 |
| 706 | Trans Energy, Inc. | St. Marys, WV 26170 | Oil & Gas Operator | Dec 2017 |
| 707 | Tri-County Oil & Gas, Inc. | Fairmont, WV 26555-0000 | Oil & Gas Operator | Dec 2019 |
| 708 | Tri-Crude Oil & Gas | Harrisville, WV 26362-0000 | Oil & Gas Operator | Dec 2021 |
| 709 | Triad Energy, Inc. | Oklahoma City, OK 73105-1401 | Oil & Gas Operator | Jun 2025 |
| 710 | Triad Hunter, LLC | Spring, TX 77389 | Oil & Gas Operator | Dec 2021 |
| 711 | Triad Resources Inc | Spring, TX 77389 | Oil & Gas Operator | Dec 2020 |
| 712 | Tribune Resources, LLC | | Oil & Gas Operator | Dec 2021 |
| 713 | Trio Oil And Gas Company | Salem, WV 26426 | Oil & Gas Operator | Nov 2021 |
| 714 | Trio Petroleum Corp. | Glenville, WV 26351-0880 | Oil & Gas Operator | Jul 2016 |
| 715 | Trittipo, J. L. | | Oil & Gas Operator | Nov 1997 |
| 716 | TSR Enterprises, LLC | Harrisville, WV 26362-7631 | Oil & Gas Operator | Dec 2021 |
| 717 | Tucker, Gene | | Oil & Gas Operator | Dec 2011 |
| 718 | Tug Fork Development | Catlettsburg, KY 41129 | Gas Operator | Dec 2021 |
| 719 | Tug Hill Operating, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Dec 2021 |
| 720 | Tully Drilling Company | | Gas Operator | Dec 2021 |
| 721 | Tuscany Gas Limited Liability Company | | Gas Operator | Dec 2021 |
| 722 | Ullum Oil And Gas Development Corporation, Inc. | Grantsville, WV 26147-0000 | Oil & Gas Operator | Dec 2021 |
| 723 | Ultra Production Company, LLC | Cedar Bluff, VA 24609 | Gas Operator | Oct 2014 |
| 724 | Umc Petroleum Corporation | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
| 725 | Underwood, Donald D. Dba Mustang Oil Co | Salem, WV 26426 | Oil & Gas Operator | Dec 2020 |
| 726 | Union Oil Co Of California | Midland, TX 79706 | Oil & Gas Operator | Jan 2022 |
| 727 | United Operating Company | Olney, TX 76374 | Oil & Gas Operator | Aug 2003 |
| 728 | United Petro LTD. | | Oil & Gas Operator | Dec 2018 |
| 729 | Upland Resources, Inc. | Canadian, TX 79014 | Oil & Gas Operator | Dec 2009 |
| 730 | Us Energy Corp. | Houston, TX 77057 | Oil & Gas Operator | Dec 2021 |
| 731 | Vescal Corporation | Elizabeth, WV 26143-0000 | Oil & Gas Operator | Dec 2017 |
| 732 | Viking Energy Corporation | Odessa, TX 79760 | Oil & Gas Operator | Dec 2021 |
| 733 | Viking International Resources Co., Inc. | | Oil & Gas Operator | Dec 2020 |
| 734 | Virtex Eastern Producing Co., LLC | | Gas Operator | Dec 2021 |
| 735 | W. E. B. Well Tending Service, Inc. | Vienna, WV 26105 | Oil & Gas Operator | Nov 2011 |
| 736 | Waco Oil & Gas Co., Inc. | Glenville, WV 26351-0397 | Oil & Gas Operator | Dec 2021 |
| 737 | Walker Gas Company | Romney, WV 25757-0000 | Oil & Gas Operator | Dec 2018 |
| 738 | Walker Oil And Gas Inc | | Oil & Gas Operator | Jun 2021 |
| 739 | Walker Well Service Inc | Big Bend, WV 26136-0000 | Oil & Gas Operator | Dec 2021 |
| 740 | Wallace, Drexel And June | New Milton, WV 26411-0000 | Oil & Gas Operator | Dec 2021 |
| 741 | Warfield Management, LLC | Newman, GA 30263 | Gas Operator | Dec 2021 |
| 742 | Warren Drilling Co | Dexter City, OH 45727 | Oil & Gas Operator | Dec 2024 |
| 743 | Warren Producers Inc | Bowling Green, KY 42102 | Oil & Gas Operator | Dec 2017 |
| 744 | Wayne Gas Company | | Gas Operator | Dec 2015 |
| 745 | Welch Oil & Gas Company | Parkersburg, WV 26104 | Oil & Gas Operator | Jun 2013 |
| 746 | West Side Exploration, LLC | | Oil & Gas Operator | Apr 2025 |
| 747 | West VIrginia Land Resources, Inc. | | Oil & Gas Operator | Dec 2021 |
| 748 | Westmoreland Gas, LLC | | Oil & Gas Operator | Dec 2021 |
| 749 | Weva Oil Corp. | | Oil & Gas Operator | Nov 2019 |
| 750 | Weyerhaeuser Company | Crossett, AR 71635 | Oil & Gas Operator | Sep 1994 |
| 751 | White Gas Company | Barboursville, WV 25504-0000 | Gas Operator | Dec 2017 |
| 752 | Whitnam Oil & Gas Corp. | Glenville, WV 26351 | Oil & Gas Operator | Dec 2009 |
| 753 | Williams Well Surveys Inc. | | Oil & Gas Operator | Dec 1996 |
| 754 | Willow Run Corporation | | Oil & Gas Operator | Dec 2021 |
| 755 | Wilson, Brian K | Fairmont, WV 26554-0148 | Oil & Gas Operator | Dec 2018 |
| 756 | Wilson, Paul E Jr | | Oil & Gas Operator | Dec 2021 |
| 757 | Wilson, Steven R. | | Gas Operator | Dec 2021 |
| 758 | Witco Corporation | Newark, OH 43055 | Oil & Gas Operator | Dec 1995 |
| 759 | Wolf Run Mining LLC | | Oil & Gas Operator | Dec 2021 |
| 760 | Woofter, Betty | Glenville, WV 26351-0032 | Oil & Gas Operator | Dec 2021 |
| 761 | WV BD. Directors-State College System | Charleston, WV 25301-0000 | Gas Operator | Dec 2017 |
| 762 | WV Wells, LTD | | Oil & Gas Operator | Nov 2021 |
| 763 | Xplor Corporation | | Oil & Gas Operator | Dec 2013 |
| 764 | XTO Energy Inc. | Spring, TX 77389 | Oil & Gas Operator | Aug 2025 |
| 765 | Yoak, IVy V. Dba Yoak Gas Company | Grantsville, WV 26147 | Gas Operator | Dec 2021 |
| 766 | Yost & Yost, Inc. | | Oil & Gas Operator | Dec 2020 |
| 767 | Zickefoose, R. L. And W.F. | Burgettstown, PA 15021 | Oil & Gas Operator | Dec 2021 |