| 1 | T B K Energy Company | Brenham, TX 77833 | Oil & Gas Operator | Nov 2025 |
| 2 | T Bar M Energy Resources LLC | Sapulpa, OK 74066 | Oil & Gas Operator | Oct 2025 |
| 3 | T D Energy Company Inc | Broken Arrow, OK 74011-3953 | Oil & Gas Operator | Feb 2015 |
| 4 | Taylor Production Company | Collinsville, OK 74021 | Oil Operator | Nov 1998 |
| 5 | Teale F William | Tulsa, OK 74136-1017 | Oil & Gas Operator | Jun 2000 |
| 6 | Tec Resources LLC | Tulsa, OK 74128 | Oil & Gas Operator | May 2013 |
| 7 | Texaco Exploration & Prod Inc | Houston, TX 77236 | Oil & Gas Operator | Sep 2025 |
| 8 | Texaco Inc | Kingfisher, OK 73750 | Oil & Gas Operator | Dec 2017 |
| 9 | Texas United Petroleum Inc | Dallas, TX 75243 | Oil & Gas Operator | Jun 2003 |
| 10 | The William R Earnhardt Company | Bristow, OK 74010 | Oil & Gas Operator | Oct 2025 |
| 11 | Thomas E L | Tulsa, OK 74136-6302 | Oil & Gas Operator | Feb 2015 |
| 12 | Thomas Exploration Company | Tulsa, OK 74136-6302 | Oil & Gas Operator | Oct 2025 |
| 13 | Threet David Allen | Sand Springs, OK 74063-4035 | Oil & Gas Operator | Sep 2025 |
| 14 | Thunder Petroleum LLC | Owasso, OK 74055-1563 | Oil Operator | Aug 2025 |
| 15 | Tilley Matt Dba Tilley Oil Co | Hominy, OK 74035 | Oil & Gas Operator | Oct 2025 |
| 16 | Tilley Oil & Gas, Inc. | Oklahoma City, OK 73172 | Oil & Gas Operator | Dec 2025 |
| 17 | Timmy Cornett | Avant, OK 74001 | Oil Operator | Oct 2025 |
| 18 | TKL Oil Properties Inc | Konawa, OK 74849 | Oil & Gas Operator | Oct 2025 |
| 19 | Toklan Oil And Gas Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Nov 2025 |
| 20 | Tower Energy Corporation | Sapulpa, OK 74067-0837 | Oil & Gas Operator | Mar 2015 |
| 21 | Transcoastal Operating LLC | Dallas, TX 75252-5646 | Oil & Gas Operator | Mar 2015 |
| 22 | Triad Resources Inc | Spring, TX 77389 | Oil & Gas Operator | Dec 2020 |
| 23 | Triple S Drilling Company | Leonard, OK 74043 | Oil & Gas Operator | Feb 2012 |
| 24 | Truckers Disposal Inc | Skiatook, OK 74070 | Oil & Gas Operator | Nov 2025 |