| 10801 | Tasca Exploration Company | Houston, TX 77257 | Oil & Gas Operator | Jun 2002 |
| 10802 | Tascosa Energy Partners, L.L.C | Midland, TX 79701 | Oil & Gas Operator | Mar 2026 |
| 10803 | Tascosa Petroleum Corporation | Amarillo, TX 79105 | Oil & Gas Operator | Jun 2026 |
| 10804 | Tat, Inc. | Oklahoma City, OK 73127 | Oil & Gas Operator | Feb 2023 |
| 10805 | Tatanka Operating, LLC | Whitesboro, TX 76273 | Oil & Gas Operator | Jun 2026 |
| 10806 | Tate, Larry V. Operating, Inc. | Kilgore, TX 75662 | Oil & Gas Operator | Apr 2002 |
| 10807 | Taubert & Steed | Wichita Falls, TX 76301 | Oil & Gas Operator | Aug 2001 |
| 10808 | Taurus Exploration U.S.A., Inc. | Midland, TX 79705 | Oil & Gas Operator | Nov 1998 |
| 10809 | Taurus Minerals, Inc. | Midland, TX 79702 | Oil & Gas Operator | Jun 2026 |
| 10810 | Taurus Operating, Inc. | Midland, TX 79710 | Oil & Gas Operator | Jun 2026 |
| 10811 | Taurus Petroleum, Inc. (A) | San Antonio, TX 78259 | Oil & Gas Operator | Jul 1996 |
| 10812 | Tawa Operating Co., Inc. | Mertzon, TX 76941 | Oil & Gas Operator | May 2019 |
| 10813 | Tayco Petroleum | Abilene, TX 79608 | Oil & Gas Operator | Nov 1996 |
| 10814 | Taylor & Smith | Gainesville, TX 76240 | Oil & Gas Operator | Jun 2026 |
| 10815 | Taylor Energy Corporation | Amarillo, TX 79114 | Oil & Gas Operator | Feb 1999 |
| 10816 | Taylor Oil & Gas Serv | Snyder, TX 79549 | Oil Operator | Jun 2026 |
| 10817 | Taylor Properties | Wichita Falls, TX 76301 | Gas Operator | Jun 2026 |
| 10818 | Taylor Two Energy, LLC | Big Spring, TX 79720 | Oil & Gas Operator | Aug 2019 |
| 10819 | Taylor, Ben J. Inc. | Fort Worth, TX 76185 | Oil & Gas Operator | Feb 2022 |
| 10820 | Taylor, Dutch | Graham, TX 76450 | Oil & Gas Operator | Jan 2016 |
| 10821 | Taylor, Frank Well Service | Cross Plains, TX 76443 | Oil & Gas Operator | Aug 2003 |
| 10822 | Taylor, G. E. | Bridgeport, TX 76426 | Oil & Gas Operator | Jan 2001 |
| 10823 | Taylor, G. E. Inc. | Bridgeport, TX 76426 | Oil & Gas Operator | Jul 2007 |
| 10824 | Taylor, Gordon Oil Company | Sunray, TX 79086 | Oil & Gas Operator | Apr 1996 |
| 10825 | Taylor, Gordon Oil Company, LP | Sunray, TX 79086 | Oil & Gas Operator | Feb 2014 |
| 10826 | Taylor, J. S. Inc. | Lewisville, TX 75057 | Oil & Gas Operator | Jun 2026 |
| 10827 | Taylor, Raymond C. Jr. | Woodway, TX 76712 | Oil & Gas Operator | Dec 2012 |
| 10828 | Taylor, Smith And Kimbell | Gainesville, TX 76240 | Oil & Gas Operator | Mar 2012 |
| 10829 | Taylor-Clayton-Hawley | Wichita Falls, TX 76301 | Oil & Gas Operator | Nov 2019 |
| 10830 | Taylor-Link Operating Co. | Midland, TX 79702 | Oil & Gas Operator | Apr 2017 |
| 10831 | Taylor-McIlhenny Oper. Co., Inc. | Lewisville, TX 75029 | Oil & Gas Operator | Jan 1996 |
| 10832 | TB Operating, LLC | Borger, TX 79008 | Oil & Gas Operator | Jun 2018 |
| 10833 | TB Petroleum, LLC | Petrolia, TX 76377 | Oil & Gas Operator | Jun 2026 |
| 10834 | TBC Petroleum | Cuero, TX 77954 | Oil & Gas Operator | Sep 2023 |
| 10835 | TBM Catarina, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Jun 2026 |
| 10836 | TC Energy LLC | Covington, OK 73730-2116 | Oil & Gas Operator | Sep 2014 |
| 10837 | TC Oil And Gas, LLC | Denton, TX 76205 | Oil Operator | Jun 2026 |
| 10838 | TC3 Energy Company | Dallas, TX 75248 | Oil & Gas Operator | Jun 2026 |
| 10839 | TC3 Energy Services Company | Bryan, TX 77805 | Oil & Gas Operator | Jan 2005 |
| 10840 | TCF Energy, Inc. | Midland, TX 79704 | Oil & Gas Operator | Dec 2004 |
| 10841 | TCRG Drilling & Operating, LLC | Fort Worth, TX 76107 | Oil Operator | Jun 2026 |
| 10842 | TCS Petroleum Co., LLC | Abilene, TX 79608 | Oil & Gas Operator | Jun 2026 |
| 10843 | TCT Operating Company, Inc. | Johnson City, TX 78636 | Oil & Gas Operator | Feb 2017 |
| 10844 | TD Natural Resources LLC | Cuero, TX 77954 | Oil & Gas Operator | Jun 2026 |
| 10845 | TD Oil & Gas LLC | Duncan, OK 73533-1851 | Oil Operator | Apr 2023 |
| 10846 | TDC Engineering, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Jun 2026 |
| 10847 | TDT Production, Inc. | Capitola, CA 95010 | Oil & Gas Operator | Aug 2003 |
| 10848 | TDX Energy, LLC | Shreveport, LA 71101 | Oil & Gas Operator | Dec 2024 |
| 10849 | Te-Ray Resources, Inc. | Oklahoma City, OK 73108 | Oil & Gas Operator | Mar 2015 |
| 10850 | Te-Ray Resources, LLC | Oklahoma City, OK 73142 | Oil & Gas Operator | Jun 2026 |
| 10851 | Teaco | Snyder, TX 79550 | Oil & Gas Operator | Jan 1998 |
| 10852 | Teague Operating Co. | Mabank, TX 75147 | Oil & Gas Operator | Jul 1995 |
| 10853 | Teague, J. V. & Robinson, E. W. | Olney, TX 76374 | Oil & Gas Operator | May 1996 |
| 10854 | Teakwood Operating LLC | Midland, TX 79701 | Oil & Gas Operator | Nov 2019 |
| 10855 | Teal Energy USA, Inc. | Houston, TX 77057 | Oil & Gas Operator | Jun 2026 |
| 10856 | Teal Exploration, LLC | Abilene, TX 79602 | Oil Operator | Jun 2026 |
| 10857 | Teal Operating, LLC | Dallas, TX 75225 | Oil & Gas Operator | Oct 2021 |
| 10858 | Team Operating, L.L.C. | Pinehurst, TX 77362 | Oil & Gas Operator | Jun 2026 |
| 10859 | Teamco Operating LLC | Houston, TX 77042 | Oil & Gas Operator | Oct 2002 |
| 10860 | Tech Resources, Inc. | Georgetown, TX 78628 | Oil & Gas Operator | Dec 2001 |
| 10861 | Technical Energy Services, Inc. | Norman, OK 73070 | Oil & Gas Operator | Feb 2026 |
| 10862 | Technology & Engr. Careers Inc. | Houston, TX 77063 | Oil Operator | Dec 2017 |
| 10863 | Teco Oil & Gas, Inc. | Tampa, FL 33601 | Oil & Gas Operator | Nov 1997 |
| 10864 | Teco Operating Company | Athens, TX 75751 | Oil & Gas Operator | Jun 2001 |
| 10865 | Tecolote Energy Operating, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Jan 2024 |
| 10866 | Tecolote Petroleum Corp.,Inc. | Friendswood, TX 77546 | Oil & Gas Operator | Mar 2011 |
| 10867 | Tecpetrol Operating LLC | Houston, TX 77027 | Oil & Gas Operator | Dec 2015 |
| 10868 | Tega Operating Co. | Dallas, TX 75201 | Oil & Gas Operator | Nov 2012 |
| 10869 | Tejas Gas Pipeline Company | Houston, TX 77010 | Oil & Gas Operator | Apr 1998 |
| 10870 | Tejas Gas Pipeline, L.P. | Houston, TX 77002 | Oil & Gas Operator | Feb 2002 |
| 10871 | Tejas Jack Sales, Inc. | Big Lake, TX 76932 | Oil & Gas Operator | Jun 2026 |
| 10872 | Tejas Operating Company, Inc. | Houston, TX 77257 | Oil & Gas Operator | May 1995 |
| 10873 | Tejas Operating LLC | Houston, TX 77056 | Oil & Gas Operator | Jun 2026 |
| 10874 | Tejas Operators, Inc. | Midland, TX 79702 | Oil & Gas Operator | Aug 2003 |
| 10875 | Tejas Permian Operating, LLC | Midland, TX 79702 | Oil & Gas Operator | Jun 2026 |
| 10876 | Tejas Petroleum Resources, LLC | Aubrey, TX 76227 | Oil & Gas Operator | Jun 2026 |
| 10877 | Tejas Trucking, Inc. | Andrews, TX 79714 | Oil & Gas Operator | Jun 2026 |
| 10878 | Tejas Western Corp. | Granbury, TX 76048 | Oil & Gas Operator | Jul 2018 |
| 10879 | Tejones Operating Corporation | San Antonio, TX 78217 | Oil & Gas Operator | Jun 2026 |
| 10880 | Teke Production LLC | Houston, TX 77269 | Oil Operator | Jun 2026 |
| 10881 | Tekna Synergy Corporation | Midland, TX 79702 | Oil & Gas Operator | Jun 2026 |
| 10882 | Teleo Operating, LLC | Dallas, TX 75219 | Oil & Gas Operator | Apr 2009 |
| 10883 | Telesis Operating Co. | Fort Worth, TX 76116 | Oil & Gas Operator | Jun 2026 |
| 10884 | Tema Oil And Gas Company | Houston, TX 77084 | Oil & Gas Operator | Jun 2026 |
| 10885 | Tema Oil And Gas, LLC | Houston, TX 77040 | Oil & Gas Operator | Apr 2000 |
| 10886 | Tember Oil Company | Holliday, TX 76366 | Oil & Gas Operator | Jun 2026 |
| 10887 | Tempest Energy Resources, LP | Houston, TX 77251 | Oil & Gas Operator | Jun 2013 |
| 10888 | Templar Operating LLC | Oklahoma City, OK 73142 | Oil & Gas Operator | Feb 2026 |
| 10889 | Templeton Oil, Inc. | Houston, TX 77002 | Oil & Gas Operator | Nov 1994 |
| 10890 | Tempo Energy, Inc. | Midland, TX 79702 | Oil & Gas Operator | Jun 2026 |
| 10891 | Tempo Resources GP, LLC | Mineral Wells, TX 76068 | Oil & Gas Operator | Apr 2013 |
| 10892 | Tend Oil Inc. | Tyler, TX 75703 | Oil & Gas Operator | Jul 1995 |
| 10893 | Tenex Corporation | Houston, TX 77227 | Oil & Gas Operator | Dec 2007 |
| 10894 | Tenexco Inc | Oakbrook Terrace, IL 60181 | Gas Operator | Dec 1998 |
| 10895 | Tengasco, Inc. | Houston, TX 77063 | Oil & Gas Operator | Jan 2026 |
| 10896 | Tenison Oil Company | Abilene, TX 79605 | Oil & Gas Operator | Feb 2026 |
| 10897 | Tenneco Oil Company | Oklahoma City, OK 73125 | Oil & Gas Operator | Dec 2025 |
| 10898 | Tensas Delta Explo. Co., LLC | Shreveport, LA 71101 | Oil & Gas Operator | Dec 2011 |
| 10899 | Teon Management, LLC | Midland, TX 79704 | Oil & Gas Operator | Mar 2020 |
| 10900 | Tep Barnett USA, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Jun 2026 |