| 5801 | Tex-Star Production | Dallas, TX 75206 | Oil & Gas Operator | Feb 2026 |
| 5802 | Tex/Con Oil & Gas Company | Houston, TX 77074 | Oil & Gas Operator | Feb 2001 |
| 5803 | Texaco Exploration & Prod Inc | Houston, TX 77236 | Oil & Gas Operator | Jan 2026 |
| 5804 | Texaco Inc | Kingfisher, OK 73750 | Oil & Gas Operator | Dec 2017 |
| 5805 | Texaco Oils Inc | Tulsa, OK 74102-2420 | Oil & Gas Operator | Jan 2003 |
| 5806 | Texakoma Exploration & Production LLC | Plano, TX 75024 | Oil & Gas Operator | Feb 2026 |
| 5807 | Texakoma Oil & Gas Corp | Dallas, TX 75240 | Oil & Gas Operator | Sep 2014 |
| 5808 | Texakoma Operating, L.P. | Plano, TX 75024 | Oil & Gas Operator | Mar 2025 |
| 5809 | Texas American Oil Corporation | Midland, TX 79701 | Oil & Gas Operator | Jan 2001 |
| 5810 | Texas Crude Exploration Inc | Fort Worth, TX 76116 | Oil & Gas Operator | Aug 1992 |
| 5811 | Texas Energies Inc | Pratt, KS 67124 | Oil & Gas Operator | Aug 1998 |
| 5812 | Texas Energy & Environmental | Houston, TX 77070 | Oil & Gas Operator | Nov 1998 |
| 5813 | Texas Energy Mutual LLC | Grapevine, TX 76051-8145 | Oil Operator | Jun 2018 |
| 5814 | Texas Energy Operations, LC | Wichita Falls, TX 76301 | Oil & Gas Operator | May 2026 |
| 5815 | Texas Meridian Operating Co. Inc | Houston, TX 77079 | Oil & Gas Operator | Oct 1993 |
| 5816 | Texas Mineral Group | Midland, TX 79705 | Oil & Gas Operator | Aug 2013 |
| 5817 | Texas Moran Exploration Company | Houston, TX 77098 | Oil & Gas Operator | Jun 2023 |
| 5818 | Texas Oil & Gas Corporation | Dallas, TX 75201 | Oil & Gas Operator | Feb 2001 |
| 5819 | Texas United Petroleum Inc | Dallas, TX 75243 | Oil & Gas Operator | Jun 2003 |
| 5820 | Texasgulf Inc. | Newgulf, TX 77462 | Oil & Gas Operator | Jul 1994 |
| 5821 | Texcel Exploration, Inc. | Colorado SPGS, CO 80960 | Oil & Gas Operator | May 2026 |
| 5822 | Texinia Corp | Dallas, TX 75201 | Oil & Gas Operator | Jun 2015 |
| 5823 | Texinia Limited Partnership | Dallas, TX 75201 | Gas Operator | Jan 2017 |
| 5824 | Texinia Oil & Gas Inc | Dallas, TX 75214 | Oil & Gas Operator | Feb 2026 |
| 5825 | Texland Petroleum Inc. | Fort Worth, TX 76102 | Oil & Gas Operator | Mar 2003 |
| 5826 | Texocan Minerals Inc | Tulsa, OK 74147 | Oil & Gas Operator | Dec 2000 |
| 5827 | Texoma Oil & Gas Corporation | Longview, TX 75604-3137 | Oil Operator | Apr 2014 |
| 5828 | Texxon Resources, Inc. | Winter Park, FL 32792 | Oil & Gas Operator | May 2026 |
| 5829 | TGX Corporation | Houston, TX 77002 | Oil & Gas Operator | Sep 2004 |
| 5830 | The Calvert Company | Oklahoma City, OK 73154-1589 | Oil & Gas Operator | Dec 2021 |
| 5831 | The Dehart Company LLC | Ardmore, OK 73402-0907 | Oil Operator | Feb 2026 |
| 5832 | The Elliott Oil Corporation | | Oil & Gas Operator | Feb 2026 |
| 5833 | The Galaxy Corporation | Sapulpa, OK 74066 | Oil & Gas Operator | Feb 2026 |
| 5834 | The Guinn Company LLC | Asher, OK 74826-6012 | Oil & Gas Operator | Dec 2025 |
| 5835 | The KT Oil Company LLC | Ada, OK 74820 | Oil & Gas Operator | Feb 2026 |
| 5836 | The Quintin Little Company Inc | Ardmore, OK 73401 | Oil & Gas Operator | Feb 2026 |
| 5837 | The Twenty Eleven Corp Inc | Ada, OK 74820-3605 | Oil Operator | Jan 2026 |
| 5838 | The William R Earnhardt Company | Bristow, OK 74010 | Oil & Gas Operator | Jan 2026 |
| 5839 | Thomas B Rixleben | | Oil & Gas Operator | Jul 2008 |
| 5840 | Thomas Blankenship Dba B S Oil Company | Lindsay, OK 73052 | Oil & Gas Operator | Dec 2025 |
| 5841 | Thomas E L | Tulsa, OK 74136-6302 | Oil & Gas Operator | Feb 2015 |
| 5842 | Thomas Exploration Company | Tulsa, OK 74136-6302 | Oil & Gas Operator | Jan 2026 |
| 5843 | Thomas J L Engineering Inc | Edmond, OK 73003-0026 | Oil & Gas Operator | Jul 2016 |
| 5844 | Thomas Oil Company LLC | Ardmore, OK 73401-3717 | Oil Operator | Feb 2026 |
| 5845 | Thomas Production | Electra, TX 76360 | Oil & Gas Operator | Mar 2015 |
| 5846 | Thomas Wayne Oil & Gas | Bristow, OK 74010-0544 | Oil & Gas Operator | Jan 2018 |
| 5847 | Thomas, Ellis W | | Oil & Gas Operator | Jan 2026 |
| 5848 | Thomas, R. W. Inc. | Norman, OK 73070 | Oil & Gas Operator | Apr 2015 |
| 5849 | Thompson Felton | Dewey, OK 74029 | Oil Operator | Jul 1999 |
| 5850 | Thompson James R | Okmulgee, OK 74447 | Oil & Gas Operator | Sep 2025 |
| 5851 | Thompson Operating Co. | Abernathy, TX 79311 | Oil & Gas Operator | Aug 1994 |
| 5852 | Thompson Roy G | Bartlesville, OK 74006 | Oil & Gas Operator | Feb 1993 |
| 5853 | Thompson, Joe L., Inc. | Oklahoma City, OK 73132 | Oil & Gas Operator | Oct 2005 |
| 5854 | Three D Resources Inc | Liberal, KS 67905 | Oil & Gas Operator | Jan 2026 |
| 5855 | Three Forks Resources, LLC | Wheat Ridge, CO 80033 | Oil & Gas Operator | May 2026 |
| 5856 | Three MG Family Inc | Holdenville, OK 74848 | Oil & Gas Operator | May 2013 |
| 5857 | Three Sands Investment Company | Waukomis, OK 73773 | Oil & Gas Operator | Feb 2026 |
| 5858 | Three Sands Oil Inc | Perry, OK 73077 | Oil & Gas Operator | May 2023 |
| 5859 | Three-N-One | | Oil Operator | Oct 2020 |
| 5860 | Threet David Allen | Sand Springs, OK 74063-4035 | Oil & Gas Operator | Jan 2026 |
| 5861 | Threshold Development Company | Fort Worth, TX 76109 | Oil & Gas Operator | Aug 2016 |
| 5862 | Thunder Oil & Gas, LLC | Ardmore, OK 73402 | Oil & Gas Operator | Feb 2026 |
| 5863 | Thunder Petroleum LLC | Owasso, OK 74055-1563 | Oil Operator | Aug 2025 |
| 5864 | Tickel Jim & Cindy | Blackwell, OK 74631-6015 | Oil Operator | Jan 2013 |
| 5865 | Tide West Oil Company | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2021 |
| 5866 | Tidemark Exploration | Tulsa, OK 74170 | Oil & Gas Operator | May 2005 |
| 5867 | Tidemark Exploration Inc | Tulsa, OK 74120 | Oil & Gas Operator | Apr 2019 |
| 5868 | Tidewater Operating Co Inc | Tulsa, OK 74136-6308 | Oil & Gas Operator | Feb 2026 |
| 5869 | Tidwell Oil LLC | Roff, OK 74865 | Oil Operator | Feb 2022 |
| 5870 | Tiger Eye Resources LLC | Hockley, TX 77447-6911 | Oil Operator | Oct 2012 |
| 5871 | Tiger Mountain Gas & Oil | Oklahoma City, OK 73118 | Gas Operator | Sep 1999 |
| 5872 | Tiger Oil Company | Dallas, TX 75221 | Oil & Gas Operator | May 2007 |
| 5873 | Tiger Trucks Inc | Seminole, OK 74868 | Oil & Gas Operator | Feb 2026 |
| 5874 | Tilford Pinson Exploration LLC | Edmond, OK 73003 | Oil & Gas Operator | Jan 2026 |
| 5875 | Tilley Matt Dba Tilley Oil Co | Skiatook, OK 74070 | Oil & Gas Operator | Feb 2026 |
| 5876 | Tilley Oil & Gas, Inc. | Oklahoma City, OK 73172 | Oil & Gas Operator | May 2026 |
| 5877 | Tilley Oil Inc | Velma, OK 73491 | Oil & Gas Operator | Feb 2026 |
| 5878 | Tillman Consulting LLC Dba B & C Operating | Mustang, OK 73064-8195 | Oil Operator | Jan 2022 |
| 5879 | Timber Hill Energy | Pawhuska, OK 74056 | Oil & Gas Operator | Jun 2011 |
| 5880 | Timbercreek Oil Company LLC | Healdton, OK 73438 | Oil Operator | Oct 2025 |
| 5881 | Tindall Operating Company | Englewood, CO 80112 | Oil & Gas Operator | Jan 2025 |
| 5882 | Tindol Jr Robert | Ryan, OK 73565 | Oil Operator | Oct 2009 |
| 5883 | Tipperary Oil & Gas Corporation | Denver, CO 80202 | Oil & Gas Operator | May 2014 |
| 5884 | Titan Oil & Gas Corporation | Edmond, OK 73013-5417 | Oil & Gas Operator | Nov 2025 |
| 5885 | Titan Resources LTD | Limaville, OH 44640 | Oil & Gas Operator | Feb 2026 |
| 5886 | TJ Oil Company | Borger, TX 79008 | Oil & Gas Operator | May 2026 |
| 5887 | TK Drilling Corp. | Tulsa, OK 74133 | Oil & Gas Operator | Jan 2026 |
| 5888 | TKL Oil Properties Inc | Konawa, OK 74849 | Oil & Gas Operator | Oct 2025 |
| 5889 | TLC Oil And Gas | Duncan, OK 73533-9477 | Oil & Gas Operator | Oct 2015 |
| 5890 | TLS Oil & Gas Inc | Kingfisher, OK 73750-0901 | Oil & Gas Operator | Jan 2026 |
| 5891 | TLS Operating Company | Greenwood VIlge, CO 80111 | Oil & Gas Operator | Dec 2013 |
| 5892 | TNT Energy Inc. | Brownwood, TX 76801 | Oil & Gas Operator | May 2013 |
| 5893 | TNT Enterprizes | Coweta, OK 74429 | Oil & Gas Operator | Nov 2005 |
| 5894 | TNT Operating Company Inc | Blanchard, OK 73010 | Oil & Gas Operator | Jan 2026 |
| 5895 | Toco Oil & Gas Co | Grapevine, TX 76051 | Oil & Gas Operator | Feb 1993 |
| 5896 | Todd John C | Oklahoma City, OK 73112-8049 | Oil & Gas Operator | May 2015 |
| 5897 | Token Operating, LLC | Enid, OK 73703-1094 | Oil & Gas Operator | Feb 2026 |
| 5898 | Toklan Oil And Gas Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Feb 2026 |
| 5899 | Toklan Oil Corporation | Tulsa, OK 74103 | Oil & Gas Operator | Mar 2015 |
| 5900 | Tola Production Company | Dallas, TX 75367 | Oil & Gas Operator | May 2026 |