| 1 | T & S Mud Disposal LLC | Lindsay, OK 73052-0754 | Oil Operator | Mar 2013 |
| 2 | T B K Energy Company | | Oil & Gas Operator | Feb 2024 |
| 3 | T C Craighead & Company LLC | Ardmore, OK 73402-0576 | Oil & Gas Operator | Aug 2019 |
| 4 | Tack Operating LLC | Oklahoma City, OK 73172-1492 | Oil & Gas Operator | Aug 2021 |
| 5 | Tag Petroleum Inc | Stillwater, OK 74076-1389 | Oil & Gas Operator | Jan 2021 |
| 6 | Tapoil Inc | Elmore City, OK 73433-9077 | Oil & Gas Operator | Jul 2021 |
| 7 | Tapstone Energy LLC | Oklahoma City, OK 73101 | Oil & Gas Operator | Feb 2024 |
| 8 | Tat, Inc. | Oklahoma City, OK 73127 | Oil & Gas Operator | Feb 2023 |
| 9 | Taylor R C Companies Inc | Oklahoma City, OK 73118-4015 | Oil & Gas Operator | May 2021 |
| 10 | Te-Ray Energy, Inc. | Oklahoma City, OK 73108 | Oil & Gas Operator | Jan 2024 |
| 11 | Te-Ray Resources, LLC | Oklahoma City, OK 73142 | Oil & Gas Operator | Apr 2024 |
| 12 | Tekenergy, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Mar 2015 |
| 13 | Tema Oil And Gas Company | Houston, TX 77084 | Oil & Gas Operator | Apr 2024 |
| 14 | Tenneco Oil Company | Oklahoma City, OK 73125 | Oil & Gas Operator | Nov 2023 |
| 15 | Teocalli Exploration LLC | | Oil & Gas Operator | Feb 2024 |
| 16 | Tepee Petroleum Company, Inc. | Houston, TX 77098 | Oil & Gas Operator | Feb 2014 |
| 17 | Terraquest Corporation | Edmond, OK 73034 | Oil & Gas Operator | Jul 1997 |
| 18 | Tessera Energy LLC | | Oil & Gas Operator | Jan 2024 |
| 19 | Tex/Con Oil & Gas Company | Houston, TX 77074 | Oil & Gas Operator | Feb 2001 |
| 20 | Texaco Expl. And Prod. Inc. | Houston, TX 77236 | Oil & Gas Operator | Dec 2023 |
| 21 | Texas American Oil Corporation | Midland, TX 79701 | Oil & Gas Operator | Jan 2001 |
| 22 | The Calvert Company | Oklahoma City, OK 73154-1589 | Oil & Gas Operator | Dec 2021 |
| 23 | The Quintin Little Company Inc | Ardmore, OK 73402-1509 | Oil & Gas Operator | Feb 2024 |
| 24 | Thomas J L Engineering Inc | Edmond, OK 73003-0026 | Oil & Gas Operator | Jul 2016 |
| 25 | Thompson, Joe L., Inc. | Oklahoma City, OK 73132 | Oil & Gas Operator | Oct 2005 |
| 26 | Three Sands Oil Inc | Perry, OK 73077-0853 | Oil & Gas Operator | May 2023 |
| 27 | Threshold Development Company | Fort Worth, TX 76109 | Oil & Gas Operator | Aug 2016 |
| 28 | Thunder Oil & Gas, LLC | Ardmore, OK 73402 | Oil & Gas Operator | Jan 2024 |
| 29 | Tide West Oil Company | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2021 |
| 30 | Tiger Trucks Inc | Seminole, OK 74868 | Oil & Gas Operator | Feb 2024 |
| 31 | Tilley Oil & Gas, Inc. | Oklahoma City, OK 73172 | Oil & Gas Operator | Apr 2024 |
| 32 | Tipperary Oil & Gas Corp | Denver, CO 80202 | Oil & Gas Operator | May 2014 |
| 33 | Titan Oil & Gas Corporation | Edmond, OK 73013-5417 | Oil & Gas Operator | Dec 2023 |
| 34 | Toklan Oil And Gas Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Feb 2024 |
| 35 | Tonys Crude Oil Reclaiming Plant Inc | | Oil Operator | Jan 2024 |
| 36 | Topsail Secondary Recovery LLC | | Oil & Gas Operator | Feb 2024 |
| 37 | Torch Operating Company | Houston, TX 77010 | Oil & Gas Operator | Mar 2015 |
| 38 | Tornado Energy Corporation | Sugarland, TX 77479-7124 | Oil & Gas Operator | Nov 2014 |
| 39 | Total Petroleum Inc | Denver, CO 80201-0500 | Oil & Gas Operator | Nov 2006 |
| 40 | Totalfinaelf E&P USA Inc | Houston, TX 77024 | Oil & Gas Operator | Jul 2007 |
| 41 | Tracer Energy, Inc. | Graham, TX 76450 | Oil & Gas Operator | Nov 1998 |
| 42 | Trail Ridge Energy Partners, LLC | Grapevine, TX 76051 | Oil & Gas Operator | Feb 2024 |
| 43 | Transok LLC | Oklahoma City, OK 73124-0300 | Oil & Gas Operator | Jul 2020 |
| 44 | Traynor Oil & Gas Inc | Claremont, CA 91711-2837 | Oil & Gas Operator | Jan 2024 |
| 45 | Trek Resources, Inc. | Dallas, TX 75207 | Oil & Gas Operator | Apr 2024 |
| 46 | Trepco Production Company, Inc. | Yukon, OK 73099 | Oil & Gas Operator | Jan 2024 |
| 47 | Trey Resources Inc. | Midland, TX 79710 | Oil & Gas Operator | Jan 2024 |
| 48 | Tri-State Pipeline Service Inc | Ninnekah, OK 73067-0189 | Oil & Gas Operator | Mar 2011 |
| 49 | Triad Energy, Inc. | Oklahoma City, OK 73105-1401 | Oil & Gas Operator | Feb 2024 |
| 50 | Triple C Properties Inc | Seminole, OK 74818-0481 | Oil & Gas Operator | Jun 2023 |
| 51 | Triple W Oil Inc | Chandler, OK 74834-0546 | Oil & Gas Operator | May 2013 |
| 52 | Tripower Resources LLC | Ardmore, OK 73402 | Oil & Gas Operator | Apr 2024 |
| 53 | Tripower Resources, Inc. | Ardmore, OK 73402 | Oil & Gas Operator | Mar 2020 |
| 54 | Trout Disposal Well Inc | Hammon, OK 73650-0292 | Oil & Gas Operator | Jul 2016 |
| 55 | Truth Resources LP | Conroe, TX 77304 | Oil Operator | Sep 2021 |
| 56 | Tucson Oil & Gas Inc | | Oil & Gas Operator | Aug 1994 |
| 57 | Tulsa Energy Partners LLC | Tulsa, OK 74103-4461 | Oil & Gas Operator | Feb 2024 |
| 58 | Turner Jeff | Marlow, OK 73055-9864 | Oil & Gas Operator | Apr 2007 |
| 59 | Turner Resources Inc | Hennessey, OK 73742-0775 | Oil & Gas Operator | Jan 2024 |
| 60 | Twenty First Century Res Inc | Lajolla, CA 92037-7044 | Oil & Gas Operator | Mar 2015 |
| 61 | Twenty/Twenty Oil & Gas Inc | Hennessey, OK 73742-0247 | Oil & Gas Operator | Feb 2024 |
| 62 | Txo Production Corp. | Ganado, TX 77962 | Oil & Gas Operator | Aug 2022 |