| 11001 | The Termo Company | Long Beach, CA 90801 | Oil & Gas Operator | Oct 2024 |
| 11002 | Theisen, VIncent A. | Wilmington, DE 19807 | Oil & Gas Operator | Sep 2003 |
| 11003 | Thomas Exploration & Devel., Inc | Jourdanton, TX 78026 | Oil & Gas Operator | Dec 2024 |
| 11004 | Thomas Oil & Gas Company | Luling, TX 78648 | Oil & Gas Operator | Aug 2003 |
| 11005 | Thomas Oil And Gas Inc. | San Angelo, TX 76906 | Oil & Gas Operator | May 2019 |
| 11006 | Thomas Operating LTD. Co. | Dallas, TX 75220 | Oil & Gas Operator | Dec 2024 |
| 11007 | Thomas Production | Electra, TX 76360 | Oil & Gas Operator | Mar 2015 |
| 11008 | Thomas Resources Corporation | Monahans, TX 79756 | Oil Operator | Mar 2008 |
| 11009 | Thomas, B. K. | Plano, TX 75093 | Oil & Gas Operator | Jan 2008 |
| 11010 | Thomas, M.A. Oil Associates | Nocona, TX 76255 | Oil & Gas Operator | Dec 2024 |
| 11011 | Thomas, Mike | Nixon, TX 78140 | Oil Operator | Dec 2024 |
| 11012 | Thomas, R. W. Inc. | Norman, OK 73070 | Oil & Gas Operator | Apr 2015 |
| 11013 | Thomas, T. N. Oil Company | Aiken, SC 29801 | Oil & Gas Operator | Dec 2024 |
| 11014 | Thompson Oil Co. | Corsicana, TX 75151 | Oil & Gas Operator | Aug 2024 |
| 11015 | Thompson Operating Co. | Abernathy, TX 79311 | Oil & Gas Operator | Aug 1994 |
| 11016 | Thompson, J. Cleo | Dallas, TX 75201 | Oil & Gas Operator | May 2024 |
| 11017 | Thompson, Joe L., Inc. | Oklahoma City, OK 73132 | Oil & Gas Operator | Oct 2005 |
| 11018 | Thompson, Mark P. | Graham, TX 76450 | Oil & Gas Operator | Dec 2024 |
| 11019 | Thompson, Richard W. Inc. | Plano, TX 75024 | Oil & Gas Operator | Dec 2024 |
| 11020 | Thor Operating Company | Tyler, TX 75710 | Oil & Gas Operator | Dec 1995 |
| 11021 | Thor-Max Operating, Inc. | Plano, TX 75025 | Oil & Gas Operator | Dec 2024 |
| 11022 | Thornberry Oilfield Service, Inc | Conroe, TX 77302 | Oil & Gas Operator | Aug 2003 |
| 11023 | Thornton Minerals, LLC | Jacksboro, TX 76458 | Gas Operator | Dec 2024 |
| 11024 | Thornton Oil Co. | Abilene, TX 79603 | Oil & Gas Operator | Aug 2003 |
| 11025 | Thornton, Michael D. | Breckenridge, TX 76424 | Oil & Gas Operator | Nov 1995 |
| 11026 | Thorp Petroleum Corporation | Houston, TX 77002 | Oil & Gas Operator | Feb 2014 |
| 11027 | THP Operating LLC | Santa Anna, TX 76878 | Oil & Gas Operator | Dec 2024 |
| 11028 | Thrall Operating Company, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Dec 2024 |
| 11029 | Thrash, Afton | Kilgore, TX 75663 | Oil & Gas Operator | Apr 1996 |
| 11030 | Three B Corporation | Fort Worth, TX 76179 | Gas Operator | Jun 2009 |
| 11031 | Three B Operating, Inc. | Graham, TX 76450 | Oil & Gas Operator | Dec 2024 |
| 11032 | Three B, LP | Fort Worth, TX 76179 | Gas Operator | Dec 2024 |
| 11033 | Three C Exploration, LLC | Austin, TX 78746 | Oil & Gas Operator | Dec 2024 |
| 11034 | Three D Submersible Pumps, Inc. | Heavener, OK 74937 | Oil & Gas Operator | Aug 2003 |
| 11035 | Three Forks Operating Co, LLC | Flatonia, TX 78941 | Oil & Gas Operator | Dec 2024 |
| 11036 | Three Forks Resources LLC | Wheat Ridge, CO 80033 | Oil & Gas Operator | Dec 2024 |
| 11037 | Three J Energy, Inc. | Seguin, TX 78155 | Oil & Gas Operator | Dec 2024 |
| 11038 | Three J Operating Company, Inc. | Jacksboro, TX 76458 | Oil & Gas Operator | Dec 2024 |
| 11039 | Three J'S Petroleum, Inc. | Lubbock, TX 79423 | Oil & Gas Operator | Dec 2024 |
| 11040 | Three Mile Joint Venture | Houston, TX 77027 | Oil & Gas Operator | Jul 1995 |
| 11041 | Three P Operating Co.,GP, L.L.C. | Newcastle, TX 76372 | Oil & Gas Operator | Dec 2024 |
| 11042 | Three P Operating Company | Newcastle, TX 76372 | Oil & Gas Operator | Nov 2007 |
| 11043 | Three R Oil Company | Post, TX 79356 | Oil & Gas Operator | Dec 2024 |
| 11044 | Three Rivers Oper Co III LLC | Austin, TX 78735 | Oil & Gas Operator | Nov 2017 |
| 11045 | Three Rivers Operating Co II LLC | Austin, TX 78735 | Oil & Gas Operator | Mar 2017 |
| 11046 | Three Rivers Operating Co LLC | Austin, TX 78735 | Oil & Gas Operator | Mar 2017 |
| 11047 | Three Sisters Petroleum, Inc. | Oil City, LA 71061 | Oil & Gas Operator | Jul 2024 |
| 11048 | Three Span Oil & Gas, Inc. | Midland, TX 79710 | Oil & Gas Operator | Dec 2024 |
| 11049 | Three Summits Operating LLC | Grapevine, TX 76051 | Oil & Gas Operator | Dec 2024 |
| 11050 | Three-B Oil Company, The | Monahans, TX 79756 | Oil & Gas Operator | Dec 2024 |
| 11051 | Three-C Oil And Gas | Austin, TX 78746 | Oil & Gas Operator | Dec 2024 |
| 11052 | Three-C Production Company | Temple, TX 76502 | Oil Operator | Dec 2024 |
| 11053 | Threeway Drilling Company | Midland, TX 79701 | Oil & Gas Operator | Dec 2024 |
| 11054 | Thresher Energy, Inc. | Houston, TX 77060 | Oil & Gas Operator | Dec 2024 |
| 11055 | Threshold Development Company | Fort Worth, TX 76109 | Oil & Gas Operator | Aug 2016 |
| 11056 | Threshold Exploration, Inc. | College Sta, TX 77842 | Oil & Gas Operator | Oct 2015 |
| 11057 | Thrifty Well Service | Rice, TX 75155 | Oil & Gas Operator | Jun 2009 |
| 11058 | Throckmorton Oil, Inc. | Throckmorton, TX 76483 | Oil & Gas Operator | Mar 2008 |
| 11059 | Throne Delaware Resources, LLC | McKinney, TX 75072 | Oil & Gas Operator | Dec 2021 |
| 11060 | Throne Petroleum Resources LLC | Houston, TX 77006 | Oil & Gas Operator | Aug 2021 |
| 11061 | THT Covenant Holdings, LLC | Wichita Falls, TX 76307 | Oil Operator | Dec 2024 |
| 11062 | Thunder Oil & Gas, LLC | Ardmore, OK 73402 | Oil & Gas Operator | Sep 2024 |
| 11063 | Thunder Resources LLC | Graham, TX 76450 | Oil Operator | Dec 2024 |
| 11064 | Thunderbird (Texas) Resources LP | Edmond, OK 73025 | Oil & Gas Operator | Apr 2019 |
| 11065 | Thunderbird Drilling, Inc. | Wichita, KS 67207 | Oil Operator | Oct 2008 |
| 11066 | Thunderbird Energy, Inc. | Norman, OK 73069 | Oil & Gas Operator | Dec 2024 |
| 11067 | Thunderbird Operating, L.L.C. | Graham, TX 76450 | Oil & Gas Operator | Dec 2024 |
| 11068 | Thunderbolt Oil & Gas, Inc. | Abilene, TX 79605 | Oil & Gas Operator | Feb 2004 |
| 11069 | Thunderbolt Petroleum Co. LLC | Midland, TX 79702 | Oil & Gas Operator | Apr 2011 |
| 11070 | Thurston Texas Operating Co LLC | Dallas, TX 75219 | Oil Operator | Dec 2024 |
| 11071 | Tiara Resources, Inc. | Fort Worth, TX 76179 | Oil & Gas Operator | Apr 1998 |
| 11072 | Tiburon Oil & Gas, Inc. | Midland, TX 79701 | Oil & Gas Operator | Aug 2000 |
| 11073 | Tidal Petroleum, Inc. | Schertz, TX 78154 | Oil & Gas Operator | Dec 2024 |
| 11074 | Tide West Oil Company | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2021 |
| 11075 | Tidelands Oil Corporation | Crystal City, TX 78839 | Oil & Gas Operator | Aug 2003 |
| 11076 | Tidemark Exploration Inc | Tulsa, OK 74120 | Oil & Gas Operator | Apr 2019 |
| 11077 | Tidemark Petroleum, Inc. | San Antonio, TX 78209 | Oil & Gas Operator | Jul 2002 |
| 11078 | Tidewater Minerals Corporation | Orange Grove, TX 78372 | Oil & Gas Operator | Dec 2024 |
| 11079 | Tidewater Resources Corporation | Memphis, TN 38138 | Gas Operator | Dec 2024 |
| 11080 | Tidlow | Santa Fe, NM 87508 | Oil & Gas Operator | Dec 2007 |
| 11081 | Tidmore, Ann | Albany, TX 76430 | Oil & Gas Operator | Dec 2024 |
| 11082 | Tidwell Production Company | Sonora, TX 76950 | Oil & Gas Operator | Dec 2024 |
| 11083 | Tierra Mineral Development, L.C. | Dallas, TX 75244 | Oil & Gas Operator | Oct 1994 |
| 11084 | Tiger Resources, L.L.C. | Houston, TX 77070 | Oil & Gas Operator | Feb 2004 |
| 11085 | Tightrock Enterprises, Inc. | Trinidad, TX 75163 | Oil Operator | Dec 2024 |
| 11086 | Tigrett, Robert L. Oil & Gas Co. | Pampa, TX 79065 | Oil & Gas Operator | Dec 2013 |
| 11087 | Tiki Oil & Gas, LLC | Cisco, TX 76437 | Oil Operator | Dec 2024 |
| 11088 | Tilley Oil & Gas, Inc. | Oklahoma City, OK 73172 | Oil & Gas Operator | Dec 2024 |
| 11089 | Tillman, Jack Equipment Co. | Holliday, TX 76366 | Oil & Gas Operator | Sep 2004 |
| 11090 | Tilmon Oil Co. | Luling, TX 78648 | Oil & Gas Operator | Sep 2012 |
| 11091 | Timber Creek Operating LLC | Granbury, TX 76049 | Oil & Gas Operator | Dec 2024 |
| 11092 | Timberwolf Energy, Inc. | Houston, TX 77042 | Oil & Gas Operator | Dec 2024 |
| 11093 | Timn Oil Co. | Lubbock, TX 79424 | Oil & Gas Operator | Aug 1997 |
| 11094 | Tindle Petroleum LLC | Midland, TX 79701 | Oil & Gas Operator | Jan 2023 |
| 11095 | Tipco Operating Co. | Marshall, TX 75671 | Oil & Gas Operator | Dec 2024 |
| 11096 | Tipperary Oil & Gas Corp | Denver, CO 80202 | Oil & Gas Operator | May 2014 |
| 11097 | Titan Allen Dome LLC | Houston, TX 77056 | Oil Operator | Feb 2015 |
| 11098 | Titan Energy Operating LLC | Houston, TX 77056 | Oil Operator | Jan 2016 |
| 11099 | Titan Energy, Inc. | Austin, TX 78703 | Oil & Gas Operator | Dec 2024 |
| 11100 | Titan Exploration LLC | Denver, CO 80202 | Oil & Gas Operator | Oct 2024 |