| 29901 | Torrance Petroleum Inc. | | Oil & Gas Operator | Dec 2003 |
| 29902 | Torrent Oil LLC | Houston, TX 77002 | Oil & Gas Operator | May 2025 |
| 29903 | Torreon Oil Co | FT Worth, TX 76126 | Oil & Gas Operator | Sep 2008 |
| 29904 | Torrey, Martha M. | Limestone, NY 14753 | Oil & Gas Operator | Dec 2023 |
| 29905 | Torrid Energy Company | | Oil & Gas Operator | Jun 1988 |
| 29906 | Tortuga Operating Company | Houston, TX 77055 | Oil & Gas Operator | May 2025 |
| 29907 | Tosco Enhanced Oil Recovery Corporation | | Oil Operator | Dec 1981 |
| 29908 | Toshic Dynamics, LLC | Scottsdale, AZ 85251 | Oil Operator | Nov 2006 |
| 29909 | Totah Production | Duncan, OK 73533-9406 | Oil Operator | Mar 2015 |
| 29910 | Total E&P USA, Inc. | Houston, TX 77210 | Oil & Gas Operator | Nov 2011 |
| 29911 | Total Minatome Corporation | Houston, TX 77210 | Oil & Gas Operator | Dec 1998 |
| 29912 | Total Petroleum Inc | Houston, TX 77210 | Oil & Gas Operator | Feb 1998 |
| 29913 | Totalfinaelf E&P USA Inc | Houston, TX 77024 | Oil & Gas Operator | Jul 2007 |
| 29914 | Toto Energy, LLC | Spring, TX 77380 | Oil & Gas Operator | Dec 2019 |
| 29915 | Totten Resources | | Oil Operator | Sep 2007 |
| 29916 | Touchstone Properties, Inc. | | Oil Operator | Mar 1988 |
| 29917 | Touchstone Resources USA, Inc. | Houston, TX 77002 | Oil & Gas Operator | Oct 2006 |
| 29918 | Touchstone Trading & Transportation Inc | | Oil Operator | Jul 2024 |
| 29919 | Tower Drilling Corporation | | Oil & Gas Operator | Dec 2021 |
| 29920 | Tower Energy Corporation | Sapulpa, OK 74067-0837 | Oil & Gas Operator | Mar 2015 |
| 29921 | Tower Oil & Gas Company, Inc. | Englewood, CO 80111 | Oil & Gas Operator | May 2001 |
| 29922 | Tower Production LLC | Lubbock, TX 79413 | Oil Operator | May 2025 |
| 29923 | Tower Resources Inc | Conroe, TX 77304 | Oil & Gas Operator | May 2025 |
| 29924 | Tower Wanda L Nations | Oklahoma City, OK 73123 | Oil & Gas Operator | Aug 1996 |
| 29925 | Town Of Aurora | East Aurora, NY 14052 | Gas Operator | Dec 2023 |
| 29926 | Town Of Chautauqua | Mayville, NY 14757 | Gas Operator | Dec 2023 |
| 29927 | Town Of Newstead | Akron, NY 14001 | Gas Operator | Dec 2023 |
| 29928 | Town Of West Seneca | West Seneca, NY 14224 | Gas Operator | Dec 2023 |
| 29929 | Town Oil Company | Paola, KS 66071 | Oil & Gas Operator | Dec 2024 |
| 29930 | Towne Exploration Company LP | | Oil & Gas Operator | Mar 2025 |
| 29931 | Townes, Don | Clarksville, TX 75426 | Oil & Gas Operator | May 2025 |
| 29932 | Townsend Company | Abilene, TX 79608 | Oil & Gas Operator | Dec 2021 |
| 29933 | Townsend Operating Company | | Oil & Gas Operator | Jan 2008 |
| 29934 | Townsend V E | Ada, OK 74820 | Oil & Gas Operator | May 2013 |
| 29935 | Townsend, R. F. Trustee | Dallas, TX 75201 | Oil & Gas Operator | Dec 1994 |
| 29936 | TPC Exploration, LLC | May, TX 76857 | Oil & Gas Operator | May 2025 |
| 29937 | TPC Operating Inc. | | Oil & Gas Operator | Feb 2025 |
| 29938 | Tpet Management Inc. | Dallas, TX 75204 | Oil & Gas Operator | Dec 1997 |
| 29939 | Tpet, Inc. | Dallas, TX 75204 | Oil & Gas Operator | Mar 2008 |
| 29940 | TPR - Texas Petroleum Res. Inc | Dallas, TX 75201 | Oil & Gas Operator | May 2025 |
| 29941 | TR Crude LLC | Independence, KS 67301 | Oil Operator | Aug 2024 |
| 29942 | TR Offshore, LLC | Corpus Chrsti, TX 78413 | Oil & Gas Operator | May 2025 |
| 29943 | TR Operating LLC | Graham, TX 76450 | Oil Operator | Apr 2025 |
| 29944 | Trace Energy Management Inc | Weatherford, TX 76086 | Oil & Gas Operator | May 2025 |
| 29945 | Trace Oil & Gas LP | Cement, OK 73017 | Oil & Gas Operator | Feb 2025 |
| 29946 | Trace Operating Co & R Hudson | Pawhuska, OK 74056 | Oil & Gas Operator | Aug 2013 |
| 29947 | Trace Operating, LLC | Fort Worth, TX 76116 | Oil & Gas Operator | May 2025 |
| 29948 | Trace Operators, Inc. | | Oil & Gas Operator | Nov 2024 |
| 29949 | Tracer Energy, Inc. | Graham, TX 76450 | Oil & Gas Operator | Nov 1998 |
| 29950 | Tracer Operating, Inc. | Graham, TX 76450 | Oil & Gas Operator | May 2025 |
| 29951 | Trachtenberg Daniel S | Houston, TX 77071 | Oil Operator | Feb 2025 |
| 29952 | Tracker Mineral | Clyde, TX 79510 | Oil & Gas Operator | May 2025 |
| 29953 | Tracker Oil & Gas, Inc. | Bastrop, TX 78602 | Oil & Gas Operator | May 2025 |
| 29954 | Tracker Resource Dev III, LLC | Englewood, CO 80112 | Oil & Gas Operator | Jul 2021 |
| 29955 | Tracker Resource Development II, LLC | | Oil & Gas Operator | Feb 2011 |
| 29956 | Trackstar Energies LLC | Colorado Springs, CO 80919-3233 | Oil Operator | Mar 2023 |
| 29957 | Tracy & Associates Inc | Ada, OK 74820 | Oil & Gas Operator | Apr 2014 |
| 29958 | Tracy Co. | Rockdale, TX 76567 | Oil & Gas Operator | Mar 2022 |
| 29959 | Tracy Operating Co., LLC | Rockdale, TX 76567 | Oil & Gas Operator | May 2025 |
| 29960 | Tracy Production | Lindale, TX 75771 | Oil & Gas Operator | May 2025 |
| 29961 | Trade & Development Corp | | Oil & Gas Operator | Nov 1996 |
| 29962 | Tradestar Energy, Inc. | Hot Springs, AR 71913 | Oil Operator | Feb 2021 |
| 29963 | Tradition Resources LLC | Houston, TX 77002 | Oil & Gas Operator | Jan 2014 |
| 29964 | Tradition Resources Oper, LLC | Houston, TX 77002 | Oil & Gas Operator | Jul 2017 |
| 29965 | Trafalgar House Oil & Gas Inc. | Houston, TX 77002-7346 | Oil & Gas Operator | Jan 1992 |
| 29966 | Trahan Petroleum Inc | | Oil Operator | Dec 2024 |
| 29967 | Trail Mountain, Inc. | Artesia, NM 88210 | Oil & Gas Operator | Jan 2016 |
| 29968 | Trail Ridge Energy Partners, LLC | Grapevine, TX 76051 | Oil & Gas Operator | Mar 2025 |
| 29969 | Trail Ridge Energy PRTNS II LLC | Grapevine, TX 76051 | Oil & Gas Operator | Jun 2017 |
| 29970 | Trailblazer Energy LLC | Plano, TX 75075 | Oil & Gas Operator | Feb 2025 |
| 29971 | Trailblazer Energy Resources, LLC | Tulsa, OK 74136 | Oil & Gas Operator | May 2025 |
| 29972 | Trailhead Exploration, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | May 2025 |
| 29973 | Traillour Oil Co. | | Oil & Gas Operator | Mar 1990 |
| 29974 | Trans Atlantic Ener Corp | Caldwell, OH 43724 | Oil & Gas Operator | Dec 1993 |
| 29975 | Trans Atlantic Resource Corp | Tulsa, OK 74136-5709 | Oil & Gas Operator | Nov 1998 |
| 29976 | Trans Energy, Inc. | St. Marys, WV 26170 | Oil & Gas Operator | Dec 2017 |
| 29977 | Trans Ocean Oil, Inc. | Houston, TX 77252 | Oil & Gas Operator | Sep 1980 |
| 29978 | Trans Pacific Oi | | Oil & Gas Operator | May 1995 |
| 29979 | Trans Pacific Oil Corporation | Wichita, KS 67202 | Oil & Gas Operator | Mar 2025 |
| 29980 | Trans Resource D | | Oil Operator | May 1991 |
| 29981 | Trans Terra Corp Int'L | Amarillo, TX 79159-0370 | Oil & Gas Operator | Jul 1993 |
| 29982 | Trans Terra Corp., International | Amarillo, TX 79159 | Oil & Gas Operator | Feb 2009 |
| 29983 | Trans Texas Minerals Company | Austin, TX 78714 | Oil & Gas Operator | Aug 1999 |
| 29984 | Trans-Gulf Petroleum Corp | | Oil & Gas Operator | Sep 1999 |
| 29985 | Trans-Pacific Oil & Gas Inc. | | Oil & Gas Operator | Mar 1982 |
| 29986 | Trans-Pecos Resources, Inc. | Houston, TX 77056 | Oil & Gas Operator | May 2025 |
| 29987 | Trans-Sabine Pipeline Corp | | Oil Operator | Mar 2009 |
| 29988 | Trans-Tex Operating LLC | Dallas, TX 75367 | Oil & Gas Operator | May 2025 |
| 29989 | Trans-Texas Energy Group LLC | Mineral Wells, TX 76068 | Oil & Gas Operator | Jul 2015 |
| 29990 | Trans-Texas Resources, Inc. | Tyler, TX 75702 | Oil & Gas Operator | Feb 1993 |
| 29991 | Trans-Western Expl. Inc. | Dallas, TX 75240 | Oil & Gas Operator | Mar 1993 |
| 29992 | Trans-Western Operating Company | Golden, CO 80402 | Oil Operator | Aug 2024 |
| 29993 | Transamer Petro Corp | Pittsburgh, PA 15222-3510 | Gas Operator | Dec 1985 |
| 29994 | Transamerica Energy Corp. | Atlanta, GA 30356 | Oil & Gas Operator | May 2025 |
| 29995 | Transamerica Oil | | Oil & Gas Operator | Sep 1992 |
| 29996 | Transamerica Oil Corporation | Hutchinson, KS 67504 | Gas Operator | Jan 2025 |
| 29997 | Transamerican Energy LTD | Dallas, TX 75231-1075 | Oil & Gas Operator | Apr 2014 |
| 29998 | Transamerican Energy/Toce Oil | | Oil & Gas Operator | Dec 1994 |
| 29999 | Transamerican Natural Gas Corp. | Houston, TX 77032 | Oil & Gas Operator | Aug 2000 |
| 30000 | Transamerican-Swepi-Toce Oil | | Oil & Gas Operator | Apr 1990 |