| 29801 | Transcontinental Oil Corp. | | Oil & Gas Operator | Sep 1985 |
| 29802 | Transcontinental Shale L.L.C. | Austin, TX 78717 | Oil & Gas Operator | Feb 2016 |
| 29803 | Transfuel Resources Co | Houston, TX 77215 | Oil & Gas Operator | Aug 2013 |
| 29804 | Transglobe Oil & Gas Corporation | Littleton, CO 801222710 | Oil & Gas Operator | Dec 1999 |
| 29805 | Transhorizon Energy Inc | Cheyenne, WY 82003 | Oil & Gas Operator | Jul 2023 |
| 29806 | Transit Energy Inc | North Lawrence, OH 44666 | Oil & Gas Operator | Dec 2024 |
| 29807 | Transoil, Inc. | Oklahoma City, OK 73129 | Oil & Gas Operator | Jul 2025 |
| 29808 | Transok LLC | Oklahoma City, OK 73124-0300 | Oil & Gas Operator | Jul 2020 |
| 29809 | Transpac Petroleum Inc. | | Oil & Gas Operator | Dec 1995 |
| 29810 | Transpacific Energy, LLC | Katy, TX 77450 | Oil & Gas Operator | Jul 2025 |
| 29811 | Transpetco I | Shreveport, LA 71101 | Oil & Gas Operator | May 2009 |
| 29812 | Transtexas Gas Corporation | Houston, TX 77265 | Oil & Gas Operator | Aug 2005 |
| 29813 | Transworld Expl. & Prod., Inc. | | Oil & Gas Operator | Mar 2004 |
| 29814 | Transworld Systems Petroleum Inc | Denver, CO 80202 | Oil & Gas Operator | May 2025 |
| 29815 | Trap Rock Oil Company | Cambridge, MA 02138 | Oil & Gas Operator | Nov 2005 |
| 29816 | Trap Rock Oil, LTD. | Houston, TX 77005 | Oil & Gas Operator | Jul 2025 |
| 29817 | Trapp Oil Oper - | | Oil Operator | Aug 1989 |
| 29818 | Traton Operating Company | Kingwood, TX 77339 | Oil & Gas Operator | Mar 2019 |
| 29819 | Travco Well Servicing LLC | Okmulgee, OK 74447 | Oil Operator | Apr 2025 |
| 29820 | Travelers Oil Company | Amarillo, TX 79102 | Oil & Gas Operator | Jul 2025 |
| 29821 | Travell Energy, Inc | | Oil Operator | Dec 2023 |
| 29822 | Traver Oil & Gas Corporation | | Oil & Gas Operator | Sep 2000 |
| 29823 | Traver Oil Company | | Oil & Gas Operator | Sep 2000 |
| 29824 | Traver-Patterson Petroleum Inc | | Oil & Gas Operator | May 1990 |
| 29825 | Travers Resources, Inc. | Houston, TX 77056 | Oil & Gas Operator | Jul 2025 |
| 29826 | Traverse Oil Co And Federal Oil Co | | Oil & Gas Operator | Nov 1983 |
| 29827 | Traverse Oil Co. | | Oil & Gas Operator | Nov 1983 |
| 29828 | Travis | Houston, TX 77057 | Oil Operator | Jul 2025 |
| 29829 | Travis Coomer DRLG Co | | Oil Operator | Dec 2023 |
| 29830 | Travis E. Duren | | Oil Operator | Jul 1995 |
| 29831 | Travis Oil Co | Los Angeles, CA 90024 | Oil Operator | Jan 1990 |
| 29832 | Travis Operating, LLC | Kingwood, TX 77345 | Oil & Gas Operator | Jul 2025 |
| 29833 | Travis Peak Resources LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2025 |
| 29834 | Travis, J. J., Trustee | Rockport, TX 78382 | Oil & Gas Operator | Dec 1996 |
| 29835 | Traxler, Joyce | Le Roy, NY 14482 | Gas Operator | Dec 2024 |
| 29836 | Traynor Oil & Gas Inc | Claremont, CA 91711-2837 | Oil & Gas Operator | Jan 2024 |
| 29837 | TRC Cypress Group LLC | | Oil & Gas Operator | Apr 2025 |
| 29838 | TRC Operating Company Inc. | | Oil & Gas Operator | May 2025 |
| 29839 | Tre'J Exploration, Inc. | | Gas Operator | Dec 1991 |
| 29840 | Treadaway Oil Co. | Balmorhea, TX 79718 | Oil & Gas Operator | Jul 2025 |
| 29841 | Treadstone Energy Partners, LLC | Houston, TX 77070 | Oil & Gas Operator | Jun 2016 |
| 29842 | Treadstone Energy PRTNR Op, LLC | Katy, TX 77494 | Oil & Gas Operator | Jul 2025 |
| 29843 | Treat Howard | Okmulgee, OK 74447 | Oil & Gas Operator | Oct 2014 |
| 29844 | Trebole Operating Company | | Oil Operator | Jul 1979 |
| 29845 | Treco Oil Company | Albany, TX 76430 | Oil & Gas Operator | Jul 2025 |
| 29846 | Tredegar Properties, Inc. | | Oil Operator | Jun 1990 |
| 29847 | Tree Operating, LLC | Graham, TX 76450 | Oil & Gas Operator | Jul 2025 |
| 29848 | Trees Oil Compan | | Oil Operator | Jan 1995 |
| 29849 | Trejim Operators, LLC | Pampa, TX 79065 | Oil & Gas Operator | Jul 2025 |
| 29850 | Trek Aec, LLC | Wichita, KS 67202 | Oil & Gas Operator | Mar 2025 |
| 29851 | Trek Exploration, Inc. | Pampa, TX 79065 | Oil & Gas Operator | Jul 2025 |
| 29852 | Trek Oil & Gas, Inc | Houston, TX 77002 | Oil Operator | Mar 1998 |
| 29853 | Trek Operating, LLC | Tulsa, OK 741520098 | Oil & Gas Operator | Mar 2021 |
| 29854 | Trek Petroleum Company, Inc. | Midland, TX 79707 | Oil & Gas Operator | Jul 2025 |
| 29855 | Trek Resources, Inc. | Dallas, TX 75207 | Oil & Gas Operator | Jul 2025 |
| 29856 | Tremo Corporation | Toronto, KS 66777 | Oil Operator | May 1998 |
| 29857 | Tren Energy LLC | Graham, TX 76450 | Oil & Gas Operator | Jul 2025 |
| 29858 | Trenchco Inc | Shawnee, OK 74802-3577 | Oil & Gas Operator | Apr 2015 |
| 29859 | Trend Exploration Company | Midland, TX 79701 | Oil & Gas Operator | Mar 2008 |
| 29860 | Trend Exploration I LLC | Midland, TX 79701 | Oil & Gas Operator | May 2011 |
| 29861 | Trend Gas & Oil Inc | Jenks, OK 74037 | Oil & Gas Operator | Dec 2000 |
| 29862 | Trend Oil Co | Petaluma, CA 94954 | Oil & Gas Operator | Feb 2017 |
| 29863 | Trendsetter Production Co, Inc | | Oil & Gas Operator | Jul 2008 |
| 29864 | Trendwell Energy Corporation | | Oil & Gas Operator | Dec 2024 |
| 29865 | Trenmor Gas & Oil Co LLC | Frazeysburg, OH 43822 | Oil Operator | Dec 2022 |
| 29866 | Trenna Oil Inc. | Midland, TX 79702 | Oil & Gas Operator | Dec 2013 |
| 29867 | Trenon Oil & Gas Inc | Oklahoma City, OK 73112-4279 | Oil & Gas Operator | Sep 1996 |
| 29868 | Trepco Production Company, Inc. | Yukon, OK 73099 | Oil & Gas Operator | Apr 2025 |
| 29869 | Trepel Petroleum Exploration & | | Oil & Gas Operator | Apr 2014 |
| 29870 | Tres Azores Oil & Gas, Inc. | Fort Worth, TX 76185 | Oil & Gas Operator | Aug 2003 |
| 29871 | Tres Operating Co., LLC | Katy, TX 77494 | Oil Operator | Jul 2025 |
| 29872 | Tres Piedras, Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Apr 1999 |
| 29873 | Tres Roughneckas WTX LLC | MC Camey, TX 79752 | Oil Operator | Jul 2025 |
| 29874 | Tresami, Inc. | Jacksboro, TX 76458 | Oil & Gas Operator | Jul 2025 |
| 29875 | Tresco Energy LLC | Enid, OK 73703-3002 | Oil & Gas Operator | Apr 2025 |
| 29876 | Tresor Petroleum | | Oil & Gas Operator | Sep 1987 |
| 29877 | Tressler John R & IVa M | | Oil Operator | Apr 1989 |
| 29878 | Trestle Creek Properties, LLC | Manchaca, TX 78652 | Oil & Gas Operator | Jul 2025 |
| 29879 | Trey Exploration, Inc. | San Angelo, TX 76901 | Oil & Gas Operator | Dec 2020 |
| 29880 | Trey Operating Company | MC Camey, TX 79752 | Oil Operator | Jan 2016 |
| 29881 | Trey Resources Inc. | Midland, TX 79710 | Oil & Gas Operator | Apr 2025 |
| 29882 | Trey Services, Inc. | Midland, TX 79711 | Oil & Gas Operator | Dec 1996 |
| 29883 | Tri "M" Oil & Gas | Muenster, TX 76252 | Oil & Gas Operator | Jul 2025 |
| 29884 | Tri City Oil Co., LLC | Kountze, TX 77625 | Oil Operator | Jul 2025 |
| 29885 | Tri Energy Resources, Inc. | Norman, OK 73070 | Oil Operator | Jul 2025 |
| 29886 | Tri Family Oil Co | | Oil Operator | Dec 2024 |
| 29887 | Tri Investment Company | | Oil Operator | Mar 1980 |
| 29888 | Tri Production Inc | Healdton, OK 73438 | Oil & Gas Operator | Apr 2025 |
| 29889 | Tri Sportsmen Energy, Inc. | Austin, TX 78746 | Oil & Gas Operator | Jul 2025 |
| 29890 | Tri Star Operating, Inc. | Arlington, TX 76012 | Oil & Gas Operator | Jan 2002 |
| 29891 | Tri United, Inc | Hays, KS 67601 | Oil Operator | Mar 2025 |
| 29892 | Tri-Am Operating Company | Frankston, TX 75763 | Oil & Gas Operator | Jul 2025 |
| 29893 | Tri-C Resources, Inc. | Houston, TX 77024 | Oil & Gas Operator | Aug 2009 |
| 29894 | Tri-C Resources, LLC | Houston, TX 77024 | Oil & Gas Operator | Jul 2025 |
| 29895 | Tri-City Drilling Joint Venture | Belpre, OH 45714 | Oil & Gas Operator | Dec 2024 |
| 29896 | Tri-City Energy Inc | Wilson, OK 73463-0196 | Oil Operator | Mar 2014 |
| 29897 | Tri-County Oil & Gas, Inc. | Fairmont, WV 26555-0000 | Oil & Gas Operator | Dec 2019 |
| 29898 | Tri-County Operating Company | Seguin, TX 78156 | Gas Operator | Feb 1997 |
| 29899 | Tri-Crude Oil & Gas | Harrisville, WV 26362-0000 | Oil & Gas Operator | Dec 2021 |
| 29900 | Tri-Dyne Resources, Inc. | Southern Pine, NC 28387 | Oil & Gas Operator | Feb 2000 |