| 5901 | Tbi Exploration Inc | Englewood, CO 801556525 | Oil & Gas Operator | Jun 2011 |
| 5902 | TC Energy LLC | Covington, OK 73730-2116 | Oil & Gas Operator | Sep 2014 |
| 5903 | TC Oil LLC | Duncan, OK 73533 | Oil Operator | Dec 2025 |
| 5904 | TC3 Operating Company | Dallas, TX 75248 | Oil & Gas Operator | Jul 1996 |
| 5905 | Tcina Inc | Seminole, OK 74868 | Oil & Gas Operator | May 2023 |
| 5906 | TD Oil & Gas LLC | Duncan, OK 73533-1851 | Oil Operator | Apr 2023 |
| 5907 | TD Operating Inc | Hinton, OK 73047 | Oil & Gas Operator | Jan 2026 |
| 5908 | Te-Ray Energy Inc | Oklahoma City, OK 73108 | Oil & Gas Operator | Dec 2025 |
| 5909 | Te-Ray Resources, LLC | Oklahoma City, OK 73142 | Oil & Gas Operator | Mar 2026 |
| 5910 | Teafatiller Limuel & Rita | Marietta, OK 73448-0321 | Oil & Gas Operator | Feb 2002 |
| 5911 | Teale F William | Tulsa, OK 74136-1017 | Oil & Gas Operator | Jun 2000 |
| 5912 | Tec Resources LLC | Tulsa, OK 74128 | Oil & Gas Operator | May 2013 |
| 5913 | Technical Energy Services, Inc. | Norman, OK 73070 | Oil & Gas Operator | Dec 2025 |
| 5914 | Tecolote Energy Operating, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Jan 2024 |
| 5915 | Tee Cee'S Inc | Drumright, OK 74030 | Oil & Gas Operator | Jan 2026 |
| 5916 | Teepee Oil & Gas Inc | Yukon, OK 73085 | Oil Operator | Dec 2006 |
| 5917 | Tekenergy Inc | Oklahoma City, OK 73112 | Oil & Gas Operator | Mar 2015 |
| 5918 | Tema Oil And Gas Company | Houston, TX 77084 | Oil & Gas Operator | Mar 2026 |
| 5919 | Tema Oil Company | Amarillo, TX 79101 | Oil & Gas Operator | Jun 2009 |
| 5920 | Temex Energy Inc | Oklahoma City, OK 73101 | Oil & Gas Operator | Feb 2002 |
| 5921 | Templar Operating LLC | Oklahoma City, OK 73142 | Oil & Gas Operator | Dec 2025 |
| 5922 | Ten Grand Energy Company Inc | Nachogdoches, TX 75963-1880 | Oil Operator | Mar 2011 |
| 5923 | Tenison Oil Company | Abilene, TX 79605 | Oil & Gas Operator | Dec 2025 |
| 5924 | Tenneco Oil Company | Oklahoma City, OK 73125 | Oil & Gas Operator | Dec 2025 |
| 5925 | Tennyson Oil & Gas | Muskogee, OK 74401 | Oil Operator | Dec 2025 |
| 5926 | Teocalli Exploration LLC | Kingfisher, OK 73750 | Oil & Gas Operator | Jan 2026 |
| 5927 | Tepee Petroleum Company, Inc. | Houston, TX 77098 | Oil & Gas Operator | Feb 2014 |
| 5928 | Terhune Harry C | Bartlesville, OK 74003 | Oil Operator | Feb 1997 |
| 5929 | Terhune Opal S | Bartlesville, OK 74006-0472 | Oil Operator | Apr 2025 |
| 5930 | Terra Production Company | Okemah, OK 74859-5924 | Oil & Gas Operator | Apr 2020 |
| 5931 | Terrapet Corporation | | Oil & Gas Operator | Jun 2011 |
| 5932 | Terrapin Energy LLC | Okmulgee, OK 74447 | Oil Operator | Jan 2026 |
| 5933 | Terraquest Corporation | Edmond, OK 73034 | Oil & Gas Operator | Jul 1997 |
| 5934 | Territory Resources LLC | Stillwater, OK 74074-1869 | Oil & Gas Operator | Feb 2026 |
| 5935 | Terry Jack | Konawa, OK 74849-0337 | Oil Operator | Feb 2012 |
| 5936 | Terry John Trust | Aurora, CO 80012-5112 | Oil & Gas Operator | May 2016 |
| 5937 | Terry Production Co | Stroud, OK 74079-0475 | Oil & Gas Operator | Aug 2008 |
| 5938 | Terzan Energy II LLC | Chandler, OK 74834 | Oil & Gas Operator | Jan 2026 |
| 5939 | Tesoro Expl. & Prod. Company | San Antonio, TX 78216 | Gas Operator | Sep 2010 |
| 5940 | Tessera Energy LLC | Oklahoma City, OK 73120 | Oil & Gas Operator | Dec 2025 |
| 5941 | Testco Production Company | Watonga, OK 73772-0589 | Oil & Gas Operator | Aug 2013 |
| 5942 | Tex-Ok Energy, Limited Partnership | Cody, WY 82414 | Oil & Gas Operator | Jan 2026 |
| 5943 | Tex-Star Production | Dallas, TX 75206 | Oil & Gas Operator | Dec 2025 |
| 5944 | Tex/Con Oil & Gas Company | Houston, TX 77074 | Oil & Gas Operator | Feb 2001 |
| 5945 | Texaco Exploration & Prod Inc | Houston, TX 77236 | Oil & Gas Operator | Dec 2025 |
| 5946 | Texaco Inc | Kingfisher, OK 73750 | Oil & Gas Operator | Dec 2017 |
| 5947 | Texaco Oils Inc | Tulsa, OK 74102-2420 | Oil & Gas Operator | Jan 2003 |
| 5948 | Texakoma Exploration & Production LLC | Plano, TX 75024 | Oil & Gas Operator | Dec 2025 |
| 5949 | Texakoma Oil & Gas Corp | Dallas, TX 75240 | Oil & Gas Operator | Sep 2014 |
| 5950 | Texakoma Operating, L.P. | Plano, TX 75024 | Oil & Gas Operator | Mar 2025 |
| 5951 | Texas American Oil Corporation | Midland, TX 79701 | Oil & Gas Operator | Jan 2001 |
| 5952 | Texas Crude Exploration Inc | Fort Worth, TX 76116 | Oil & Gas Operator | Aug 1992 |
| 5953 | Texas Energies Inc | Pratt, KS 67124 | Oil & Gas Operator | Aug 1998 |
| 5954 | Texas Energy & Environmental | Houston, TX 77070 | Oil & Gas Operator | Nov 1998 |
| 5955 | Texas Energy Mutual LLC | Grapevine, TX 76051-8145 | Oil Operator | Jun 2018 |
| 5956 | Texas Energy Operations, LC | Wichita Falls, TX 76301 | Oil & Gas Operator | Mar 2026 |
| 5957 | Texas Meridian Operating Co. Inc | Houston, TX 77079 | Oil & Gas Operator | Oct 1993 |
| 5958 | Texas Mineral Group | Midland, TX 79705 | Oil & Gas Operator | Aug 2013 |
| 5959 | Texas Moran Exploration Company | Houston, TX 77098 | Oil & Gas Operator | Jun 2023 |
| 5960 | Texas Oil & Gas Corporation | Dallas, TX 75201 | Oil & Gas Operator | Feb 2001 |
| 5961 | Texas United Petroleum Inc | Dallas, TX 75243 | Oil & Gas Operator | Jun 2003 |
| 5962 | Texasgulf Inc. | Newgulf, TX 77462 | Oil & Gas Operator | Jul 1994 |
| 5963 | Texcel Exploration, Inc. | Colorado SPGS, CO 80960 | Oil & Gas Operator | Mar 2026 |
| 5964 | Texinia Corp | Dallas, TX 75201 | Oil & Gas Operator | Jun 2015 |
| 5965 | Texinia Limited Partnership | Dallas, TX 75201 | Gas Operator | Jan 2017 |
| 5966 | Texinia Oil & Gas Inc | Dallas, TX 75214 | Oil & Gas Operator | Dec 2025 |
| 5967 | Texland Petroleum Inc. | Fort Worth, TX 76102 | Oil & Gas Operator | Mar 2003 |
| 5968 | Texocan Minerals Inc | Tulsa, OK 74147 | Oil & Gas Operator | Dec 2000 |
| 5969 | Texoma Oil & Gas Corporation | Longview, TX 75604-3137 | Oil Operator | Apr 2014 |
| 5970 | Texxon Resources, Inc. | Winter Park, FL 32792 | Oil & Gas Operator | Mar 2026 |
| 5971 | TGX Corporation | Houston, TX 77002 | Oil & Gas Operator | Sep 2004 |
| 5972 | Thayer Exploration Company | Wetumka, OK 74883 | Gas Operator | Dec 1996 |
| 5973 | The Calvert Company | Oklahoma City, OK 73154-1589 | Oil & Gas Operator | Dec 2021 |
| 5974 | The Dehart Company LLC | Ardmore, OK 73402-0907 | Oil Operator | Dec 2025 |
| 5975 | The Elliott Oil Corporation | | Oil & Gas Operator | Dec 2025 |
| 5976 | The Galaxy Corporation | Sapulpa, OK 74066 | Oil & Gas Operator | Jan 2026 |
| 5977 | The Guinn Company LLC | Asher, OK 74826-6012 | Oil & Gas Operator | Dec 2025 |
| 5978 | The KT Oil Company LLC | Ada, OK 74820 | Oil & Gas Operator | Dec 2025 |
| 5979 | The Quintin Little Company Inc | Ardmore, OK 73401 | Oil & Gas Operator | Jan 2026 |
| 5980 | The Twenty Eleven Corp Inc | Ada, OK 74820-3605 | Oil Operator | Dec 2025 |
| 5981 | The William R Earnhardt Company | Bristow, OK 74010 | Oil & Gas Operator | Dec 2025 |
| 5982 | Thomas B Rixleben | | Oil & Gas Operator | Jul 2008 |
| 5983 | Thomas Blankenship Dba B S Oil Company | Lindsay, OK 73052 | Oil & Gas Operator | Dec 2025 |
| 5984 | Thomas E L | Tulsa, OK 74136-6302 | Oil & Gas Operator | Feb 2015 |
| 5985 | Thomas Exploration Company | Tulsa, OK 74136-6302 | Oil & Gas Operator | Dec 2025 |
| 5986 | Thomas J L Engineering Inc | Edmond, OK 73003-0026 | Oil & Gas Operator | Jul 2016 |
| 5987 | Thomas Oil Company LLC | Ardmore, OK 73401-3717 | Oil Operator | Jan 2026 |
| 5988 | Thomas Production | Electra, TX 76360 | Oil & Gas Operator | Mar 2015 |
| 5989 | Thomas Wayne Oil & Gas | Bristow, OK 74010-0544 | Oil & Gas Operator | Jan 2018 |
| 5990 | Thomas, Ellis W | | Oil & Gas Operator | Dec 2025 |
| 5991 | Thomas, R. W. Inc. | Norman, OK 73070 | Oil & Gas Operator | Apr 2015 |
| 5992 | Thompson Felton | Dewey, OK 74029 | Oil Operator | Jul 1999 |
| 5993 | Thompson James R | Okmulgee, OK 74447 | Oil & Gas Operator | Sep 2025 |
| 5994 | Thompson Operating Co. | Abernathy, TX 79311 | Oil & Gas Operator | Aug 1994 |
| 5995 | Thompson Roy G | Bartlesville, OK 74006 | Oil & Gas Operator | Feb 1993 |
| 5996 | Thompson, Joe L., Inc. | Oklahoma City, OK 73132 | Oil & Gas Operator | Oct 2005 |
| 5997 | THR Oil | Konawa, OK 74849 | Oil & Gas Operator | Jan 2014 |
| 5998 | Three D Resources Inc | Liberal, KS 67905 | Oil & Gas Operator | Sep 2025 |
| 5999 | Three Forks Resources, LLC | Wheat Ridge, CO 80033 | Oil & Gas Operator | Mar 2026 |
| 6000 | Three MG Family Inc | Holdenville, OK 74848 | Oil & Gas Operator | May 2013 |