| 29001 | Tex-Star Production | Dallas, TX 75206 | Oil & Gas Operator | May 2025 |
| 29002 | Tex-Well Oil & Gas Corp. | Pampa, TX 79066 | Oil & Gas Operator | Aug 2003 |
| 29003 | Tex/Con Oil & Gas Company | Houston, TX 77074 | Oil & Gas Operator | Feb 2001 |
| 29004 | Texacal, Inc. | Newport Beach, CA 92660 | Oil & Gas Operator | Jul 2025 |
| 29005 | Texaco E & P Inc | Houston, TX 77099 | Oil & Gas Operator | Jul 2025 |
| 29006 | Texaco Expl. And Prod. Inc. | Houston, TX 77236 | Oil & Gas Operator | May 2025 |
| 29007 | Texaco Explorati | | Oil & Gas Operator | Dec 1996 |
| 29008 | Texaco Exploration & Prod | Midland, TX 79702 | Oil & Gas Operator | Aug 2002 |
| 29009 | Texaco Exploration & Production Inc N W | Farmington, NM 87401 | Oil & Gas Operator | Aug 1995 |
| 29010 | Texaco Inc | Kingfisher, OK 73750 | Oil & Gas Operator | Dec 2017 |
| 29011 | Texaco Inc & A.C. Glassell Jr | | Oil & Gas Operator | Aug 1980 |
| 29012 | Texaco Oils, Inc. | Tulsa, OK 74102-2420 | Oil & Gas Operator | Jan 2003 |
| 29013 | Texaco Producing Inc. | Rock Springs, WY 82901 | Oil & Gas Operator | Dec 2000 |
| 29014 | Texaco Seaboard, Inc. | | Gas Operator | Sep 1980 |
| 29015 | Texaco USA - Mor | | Oil Operator | Aug 1988 |
| 29016 | Texada Resources, Inc. | | Oil & Gas Operator | Dec 1992 |
| 29017 | Texakoma E & P, LLC | Plano, TX 75024 | Oil & Gas Operator | Jul 2025 |
| 29018 | Texakoma Exploration & Production LLC | Plano, TX 75024 | Oil & Gas Operator | May 2025 |
| 29019 | Texakoma Oil & Gas Corp | Dallas, TX 75240 | Oil & Gas Operator | Sep 2014 |
| 29020 | Texakoma Operating, L.P. | Plano, TX 75024 | Oil & Gas Operator | Mar 2025 |
| 29021 | Texakoma Opr LP | Plano, TX 75024-6679 | Oil & Gas Operator | Dec 2012 |
| 29022 | Texakota | | Oil & Gas Operator | Mar 1995 |
| 29023 | Texakota, Inc. | Houston, TX 77098 | Oil & Gas Operator | Mar 2021 |
| 29024 | Texalta Oil And Gas Inc. | | Gas Operator | Dec 1990 |
| 29025 | Texan Petroleum Corporation | Dallas, TX 75204 | Oil & Gas Operator | Oct 2004 |
| 29026 | Texan Production | Pearsall, TX 78061 | Oil & Gas Operator | Aug 2003 |
| 29027 | Texan Production Company, Inc. | Canyon Lake, TX 78133 | Oil & Gas Operator | Jul 2025 |
| 29028 | Texana Operating Company | Houston, TX 77090 | Oil & Gas Operator | Jul 2025 |
| 29029 | Texas American Oil Corporation | Midland, TX 79701 | Oil & Gas Operator | Jan 2001 |
| 29030 | Texas American Resources Company | Austin, TX 78701 | Oil & Gas Operator | Jul 2025 |
| 29031 | Texas City Refining, Inc. | | Oil & Gas Operator | Nov 1988 |
| 29032 | Texas Coastal Resources LLC | Fairhope, AL 36532 | Oil Operator | Jul 2025 |
| 29033 | Texas Concho Operating Co. | Eldorado, TX 76936 | Oil & Gas Operator | Mar 1999 |
| 29034 | Texas Consolidated Pet. Corp. | Fort Worth, TX 76109 | Oil & Gas Operator | Jul 2025 |
| 29035 | Texas Crude & Dale Gas Expl | | Oil & Gas Operator | Dec 1984 |
| 29036 | Texas Crude Energy, Inc. | Houston, TX 77256 | Oil & Gas Operator | Oct 2012 |
| 29037 | Texas Crude Exploration, Inc. | Fort Worth, TX 76116 | Oil & Gas Operator | Aug 1992 |
| 29038 | Texas Crude Oil Co. | | Oil & Gas Operator | Dec 1984 |
| 29039 | Texas Crude Oil Co. Et Al | | Oil & Gas Operator | May 1992 |
| 29040 | Texas Crude Oil, Inc. | | Oil & Gas Operator | Dec 1984 |
| 29041 | Texas Crude Operator, Inc. | Houston, TX 77098 | Oil & Gas Operator | Aug 2017 |
| 29042 | Texas Crude, Inc. | Houston, TX 77256 | Oil & Gas Operator | Oct 1995 |
| 29043 | Texas Crude-Rebstock & Reeves | | Oil & Gas Operator | Feb 1980 |
| 29044 | Texas Crude-Wainoco-Hilliard | | Oil & Gas Operator | Jul 1978 |
| 29045 | Texas Eastern Skyline Oil | Houston, TX 77252 | Oil & Gas Operator | Jan 1987 |
| 29046 | Texas Eastern Transm. Corp. | | Oil & Gas Operator | Dec 2002 |
| 29047 | Texas Energen Inc. | Austin, TX 78731 | Oil & Gas Operator | Jul 2025 |
| 29048 | Texas Energies I | | Oil & Gas Operator | Aug 1994 |
| 29049 | Texas Energies, Inc. | Pratt, KS 67124 | Oil & Gas Operator | Aug 1998 |
| 29050 | Texas Energy & Environmental | Houston, TX 77070 | Oil & Gas Operator | Nov 1998 |
| 29051 | Texas Energy & Environmental Inc | Houston, TX 77269 | Oil & Gas Operator | Oct 1998 |
| 29052 | Texas Energy Mutual LLC | Grapevine, TX 76051-8145 | Oil Operator | Jun 2018 |
| 29053 | Texas Energy Operations, LC | Wichita Falls, TX 76301 | Oil & Gas Operator | Jul 2025 |
| 29054 | Texas Energy Reserves, Inc | New Braunfels, TX 78130 | Oil & Gas Operator | Jun 1996 |
| 29055 | Texas Energy Sources, Inc. | Midland, TX 79708 | Oil & Gas Operator | Mar 2008 |
| 29056 | Texas Energy Trust Company | Midland, TX 79701 | Oil & Gas Operator | Jun 2016 |
| 29057 | Texas Exploration & Prod. Co. | Gainesville, TX 76240 | Oil & Gas Operator | Apr 1996 |
| 29058 | Texas Fuel Company | Galveston, TX 77550 | Oil & Gas Operator | Jul 2025 |
| 29059 | Texas Gas Exploration Corp. | | Oil & Gas Operator | Nov 1986 |
| 29060 | Texas Gas Resources, Inc. | Houston, TX 77292 | Oil & Gas Operator | Jul 2009 |
| 29061 | Texas Gas Transmission Corp. | | Oil Operator | Aug 2003 |
| 29062 | Texas Gas Transmission LLC | Owensboro, KY 42301 | Oil & Gas Operator | Dec 2024 |
| 29063 | Texas General Petroleum Corp | | Oil & Gas Operator | Aug 1984 |
| 29064 | Texas Gulf Gas Corporation | Fayetteville, TX 78940 | Oil & Gas Operator | Jun 2005 |
| 29065 | Texas Hydrogen Energy Corp. | Midland, TX 79702 | Oil & Gas Operator | May 1999 |
| 29066 | Texas Ind. Exploration, Inc. | | Oil & Gas Operator | Oct 2001 |
| 29067 | Texas Independent Explor LTD. | Houston, TX 77024 | Oil & Gas Operator | Jul 2025 |
| 29068 | Texas Independent Explor., Inc. | Houston, TX 77002 | Oil & Gas Operator | Oct 2002 |
| 29069 | Texas Independent Exploration LP | Houston, TX 77024 | Oil & Gas Operator | Mar 2017 |
| 29070 | Texas Independent Oil Co., LLC | Argyle, TX 76226 | Oil & Gas Operator | Jul 2025 |
| 29071 | Texas International Oper., LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2013 |
| 29072 | Texas International Resource LLC | Allen, TX 75013 | Oil Operator | Jul 2025 |
| 29073 | Texas Investments | San Angelo, TX 76904 | Oil & Gas Operator | Mar 2008 |
| 29074 | Texas JWB LLC | Rowlett, TX 75089 | Oil Operator | Jul 2025 |
| 29075 | Texas Keystone Inc | Oakmont, PA 15139-2072 | Oil & Gas Operator | Nov 2017 |
| 29076 | Texas Land & Petro Co., LLC | Carrollton, TX 75010 | Oil & Gas Operator | Jul 2025 |
| 29077 | Texas Land & Trading Co, Inc. | Austin, TX 78734 | Oil & Gas Operator | Mar 2008 |
| 29078 | Texas Lone Star Petroleum Corp. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Dec 2013 |
| 29079 | Texas M.O.R., Inc. | Corsicana, TX 75109 | Oil Operator | Sep 2013 |
| 29080 | Texas Meridian Operating Co. Inc | Houston, TX 77079 | Oil & Gas Operator | Oct 1993 |
| 29081 | Texas Meridian Res. Expl., Inc. | Houston, TX 77079 | Oil & Gas Operator | Jun 1998 |
| 29082 | Texas Mineral Group | Midland, TX 79705 | Oil & Gas Operator | Aug 2013 |
| 29083 | Texas Moran Exploration Company | Houston, TX 77098 | Oil & Gas Operator | Jun 2023 |
| 29084 | Texas Offshore Operations, LLC | Farmers BRNCH, TX 75234 | Oil & Gas Operator | Jul 2025 |
| 29085 | Texas Oil & Gas | Denver, CO 80264 | Oil & Gas Operator | Oct 1981 |
| 29086 | Texas Oil & Gas Corporation | Dallas, TX 75201 | Oil & Gas Operator | Feb 2001 |
| 29087 | Texas Oil And Gas Operating, LLC | Friendswood, TX 77546 | Oil & Gas Operator | Jul 2025 |
| 29088 | Texas Oil Company, The | Houston, TX 77018 | Oil & Gas Operator | Aug 2006 |
| 29089 | Texas Oil Resources Oper, LLC | Houston, TX 77024 | Oil Operator | Jul 2025 |
| 29090 | Texas Onshore Energy, Inc. | Austin, TX 78704 | Oil & Gas Operator | Jul 2025 |
| 29091 | Texas Operating & Consult., LLC | Abilene, TX 79608 | Oil & Gas Operator | Feb 2018 |
| 29092 | Texas Pacific Oil Company Inc. | | Oil & Gas Operator | Dec 1980 |
| 29093 | Texas Petroleum Investment Company | Houston, TX 77057 | Oil & Gas Operator | Jul 2025 |
| 29094 | Texas Pharchem Inc. | Abilene, TX 79601 | Oil & Gas Operator | Apr 2019 |
| 29095 | Texas Presco, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Jul 2025 |
| 29096 | Texas Rayco Inc. | Palmetto, FL 34221 | Oil & Gas Operator | Jul 2025 |
| 29097 | Texas Reexploration Operating LC | Fredericksbrg, TX 78624 | Oil & Gas Operator | Jul 2025 |
| 29098 | Texas Refining, Inc. | Houston, TX 77057 | Oil & Gas Operator | Aug 2003 |
| 29099 | Texas Royalty Corp. | Austin, TX 78746 | Oil & Gas Operator | Jul 2025 |
| 29100 | Texas Sands Resources, LLC | Abilene, TX 79603 | Oil Operator | Jul 2025 |