| 1 | T & S Mud Disposal LLC | Lindsay, OK 73052-0754 | Oil Operator | Mar 2013 |
| 2 | Tat, Inc. | Oklahoma City, OK 73127 | Oil & Gas Operator | Feb 2023 |
| 3 | TC Oil LLC | | Oil Operator | Feb 2024 |
| 4 | Tcina Inc | Seminole, OK 74818-0470 | Oil & Gas Operator | May 2023 |
| 5 | Texaco Expl. And Prod. Inc. | Houston, TX 77236 | Oil & Gas Operator | Dec 2023 |
| 6 | Texaco Inc | Kingfisher, OK 73750 | Oil & Gas Operator | Dec 2017 |
| 7 | Tiger Trucks Inc | Seminole, OK 74868 | Oil & Gas Operator | Feb 2024 |
| 8 | Tindol Jr Robert | Ryan, OK 73565 | Oil Operator | Oct 2009 |
| 9 | Tola Production Company | Dallas, TX 75367 | Oil & Gas Operator | Apr 2024 |
| 10 | Tonner Petroleum LLC | Dallas, TX 75248-3326 | Oil Operator | Feb 2011 |
| 11 | Tonys Crude Oil Reclaiming Plant Inc | | Oil Operator | Jan 2024 |
| 12 | Total Petroleum Inc | Denver, CO 80201-0500 | Oil & Gas Operator | Nov 2006 |
| 13 | Triad Energy, Inc. | Oklahoma City, OK 73105-1401 | Oil & Gas Operator | Feb 2024 |
| 14 | Trio Consulting & MGMT LLC | Wichita Falls, TX 76307-0209 | Oil Operator | Feb 2024 |
| 15 | Trio Operating Company, Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2006 |
| 16 | Triple C Properties Inc | Seminole, OK 74818-0481 | Oil & Gas Operator | Jun 2023 |
| 17 | Triple G Well Service, Inc. | Muenster, TX 76252 | Oil & Gas Operator | Apr 2024 |
| 18 | Triple S Drilling Company | Leonard, OK 74043 | Oil & Gas Operator | Feb 2012 |
| 19 | Tripledee Drilling Co Inc | Ardmore, OK 73402-1888 | Oil & Gas Operator | Dec 2015 |
| 20 | Trout Disposal Well Inc | Hammon, OK 73650-0292 | Oil & Gas Operator | Jul 2016 |
| 21 | Truluck Enterprises LLC | Wichita Falls, TX 76308-4454 | Oil & Gas Operator | Apr 2015 |