| 1 | T & K Oil Inc | Stephens, AR 71764 | Oil Operator | Jan 2025 |
| 2 | T & M Oil & Royalty | Ada, OK 74820 | Oil & Gas Operator | Dec 2025 |
| 3 | T B K Energy Company | Brenham, TX 77833 | Oil & Gas Operator | Feb 2026 |
| 4 | T L C Oil Inc | Seminole, OK 74868 | Oil & Gas Operator | Jan 2026 |
| 5 | Tahoe Exploration Inc. | Abilene, TX 79608 | Oil & Gas Operator | Mar 2016 |
| 6 | Tat, Inc. | Oklahoma City, OK 73127 | Oil & Gas Operator | Feb 2023 |
| 7 | Tcina Inc | Seminole, OK 74868 | Oil & Gas Operator | May 2023 |
| 8 | Tekenergy Inc | Oklahoma City, OK 73112 | Oil & Gas Operator | Mar 2015 |
| 9 | Terra Production Company | Okemah, OK 74859-5924 | Oil & Gas Operator | Apr 2020 |
| 10 | Terrapet Corporation | | Oil & Gas Operator | Jun 2011 |
| 11 | Terry Jack | Konawa, OK 74849-0337 | Oil Operator | Feb 2012 |
| 12 | Tessera Energy LLC | Oklahoma City, OK 73120 | Oil & Gas Operator | Jan 2026 |
| 13 | Tex-Star Production | Dallas, TX 75206 | Oil & Gas Operator | Feb 2026 |
| 14 | Texaco Exploration & Prod Inc | Houston, TX 77236 | Oil & Gas Operator | Dec 2025 |
| 15 | Texaco Inc | Kingfisher, OK 73750 | Oil & Gas Operator | Dec 2017 |
| 16 | Texakoma Oil & Gas Corp | Dallas, TX 75240 | Oil & Gas Operator | Sep 2014 |
| 17 | Texakoma Operating, L.P. | Plano, TX 75024 | Oil & Gas Operator | Mar 2025 |
| 18 | Texas United Petroleum Inc | Dallas, TX 75243 | Oil & Gas Operator | Jun 2003 |
| 19 | Texoma Oil & Gas Corporation | Longview, TX 75604-3137 | Oil Operator | Apr 2014 |
| 20 | The Guinn Company LLC | Asher, OK 74826-6012 | Oil & Gas Operator | Dec 2025 |
| 21 | The Twenty Eleven Corp Inc | Ada, OK 74820-3605 | Oil Operator | Jan 2026 |
| 22 | Thomas B Rixleben | | Oil & Gas Operator | Jul 2008 |
| 23 | Thomas Production | Electra, TX 76360 | Oil & Gas Operator | Mar 2015 |
| 24 | Thomas Wayne Oil & Gas | Bristow, OK 74010-0544 | Oil & Gas Operator | Jan 2018 |
| 25 | THR Oil | Konawa, OK 74849 | Oil & Gas Operator | Jan 2014 |
| 26 | Three MG Family Inc | Holdenville, OK 74848 | Oil & Gas Operator | May 2013 |
| 27 | Thunder Oil & Gas, LLC | Ardmore, OK 73402 | Oil & Gas Operator | Feb 2026 |
| 28 | Tide West Oil Company | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2021 |
| 29 | Tiger Oil Company | Dallas, TX 75221 | Oil & Gas Operator | May 2007 |
| 30 | Tiger Trucks Inc | Seminole, OK 74868 | Oil & Gas Operator | Feb 2026 |
| 31 | TKL Oil Properties Inc | Konawa, OK 74849 | Oil & Gas Operator | Oct 2025 |
| 32 | TNT Operating Company Inc | Blanchard, OK 73010 | Oil & Gas Operator | Jan 2026 |
| 33 | Tolson Gary | Seminole, OK 74868-3267 | Oil & Gas Operator | Jan 2026 |
| 34 | Toma Explorations LLC | Shawnee, OK 74801-0512 | Oil & Gas Operator | Feb 2025 |
| 35 | Totalfinaelf E&P USA Inc | Houston, TX 77024 | Oil & Gas Operator | Jul 2007 |
| 36 | Tower Wanda L Nations | Oklahoma City, OK 73123 | Oil & Gas Operator | Aug 1996 |
| 37 | Townsend Operating Company | | Oil & Gas Operator | Jan 2008 |
| 38 | Townsend V E | Ada, OK 74820 | Oil & Gas Operator | May 2013 |
| 39 | Trace Oil & Gas LP | Cement, OK 73017 | Oil & Gas Operator | Jan 2026 |
| 40 | Trachtenberg Daniel S | Houston, TX 77071 | Oil Operator | Jan 2026 |
| 41 | Transoil, Inc. | Oklahoma City, OK 73129 | Oil & Gas Operator | Apr 2026 |
| 42 | Trenon Oil & Gas Inc | Oklahoma City, OK 73112-4279 | Oil & Gas Operator | Sep 1996 |
| 43 | Tri-State Pipeline Service Inc | Ninnekah, OK 73067-0189 | Oil & Gas Operator | Mar 2011 |
| 44 | Triangle Interprises Inc | Justin, TX 76247-0598 | Oil & Gas Operator | Jun 2015 |
| 45 | Triangle Three Resources L.L.C. | Dallas, TX 75240 | Oil & Gas Operator | Oct 2024 |
| 46 | Triple C Properties Inc | Seminole, OK 74818 | Oil & Gas Operator | Jan 2026 |
| 47 | Triple Diamond Energy Operating LLC | Dallas, TX 75254-8352 | Oil & Gas Operator | Jun 2014 |
| 48 | Triple L Management Co Inc | Edmond, OK 73025-2908 | Oil & Gas Operator | Apr 2018 |
| 49 | Tripower Resources LLC | Ardmore, OK 73402 | Oil & Gas Operator | Apr 2026 |
| 50 | Tripower Resources, Inc. | Ardmore, OK 73402 | Oil & Gas Operator | Mar 2020 |
| 51 | Trivestco Energy Company | Ponca City, OK 74601 | Oil & Gas Operator | Feb 2026 |
| 52 | True Performance Administrators LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | Sep 2025 |
| 53 | Twenty/Twenty Oil & Gas Inc | Hennessey, OK 73742 | Oil & Gas Operator | Feb 2026 |
| 54 | Two Gems Company | McAlester, OK 74502-1996 | Oil & Gas Operator | Jan 2026 |
| 55 | Txo Production Corp. | Ganado, TX 77962 | Oil & Gas Operator | Aug 2022 |
| 56 | Tyler Enterprises Inc | Bristow, OK 74010-3192 | Oil & Gas Operator | Feb 2004 |