| 28001 | TDX Energy, LLC | Shreveport, LA 71101 | Oil & Gas Operator | Dec 2023 |
| 28002 | Te-Pe Oil & Gas | | Oil & Gas Operator | Dec 2023 |
| 28003 | Te-Ray Energy, Inc. | Oklahoma City, OK 73108 | Oil & Gas Operator | Dec 2023 |
| 28004 | Te-Ray Resources, Inc. | Oklahoma City, OK 73108 | Oil & Gas Operator | Mar 2015 |
| 28005 | Te-Ray Resources, LLC | Oklahoma City, OK 73142 | Oil & Gas Operator | Apr 2024 |
| 28006 | Teaco | Snyder, TX 79550 | Oil & Gas Operator | Jan 1998 |
| 28007 | Teafatiller Limuel & Rita | Marietta, OK 73448-0321 | Oil & Gas Operator | Feb 2002 |
| 28008 | Teagarden David W | Glenford, OH 43739 | Oil & Gas Operator | Dec 2020 |
| 28009 | Teague Operating Co. | Mabank, TX 75147 | Oil & Gas Operator | Jul 1995 |
| 28010 | Teague, J. V. & Robinson, E. W. | Olney, TX 76374 | Oil & Gas Operator | May 1996 |
| 28011 | Teakwood Operating LLC | Midland, TX 79701 | Oil & Gas Operator | Nov 2019 |
| 28012 | Teal Energy USA, Inc. | Houston, TX 77057 | Oil & Gas Operator | Apr 2024 |
| 28013 | Teal Exploration, LLC | Abilene, TX 79602 | Oil Operator | Apr 2024 |
| 28014 | Teal Operating, LLC | Dallas, TX 75225 | Oil & Gas Operator | Oct 2021 |
| 28015 | Teal Petroleum Co. | | Oil & Gas Operator | Sep 1978 |
| 28016 | Teale F William | Tulsa, OK 74136-1017 | Oil & Gas Operator | Jun 2000 |
| 28017 | Team Operating, L.L.C. | Pinehurst, TX 77362 | Oil & Gas Operator | Apr 2024 |
| 28018 | Teamco Operating LLC | Houston, TX 77042 | Oil & Gas Operator | Oct 2002 |
| 28019 | Teapot Oil & Refining Company | Billings, MT 59101 | Oil & Gas Operator | Mar 2012 |
| 28020 | Teavee Oil & Gas, Inc. | Charleston, WV 25301-0000 | Oil & Gas Operator | Dec 2021 |
| 28021 | Tebco Oil & Gas | | Oil & Gas Operator | Sep 1996 |
| 28022 | Tec Drilling Com | | Oil Operator | Feb 1982 |
| 28023 | Tec Pipeline LLC | Tulsa, OK 74128 | Oil & Gas Operator | Mar 2015 |
| 28024 | Tec Resources, L.L.C. | Tulsa, OK 74128 | Oil & Gas Operator | May 2013 |
| 28025 | Tech American Re | | Oil Operator | Sep 1985 |
| 28026 | Tech Resources, Inc. | Georgetown, TX 78628 | Oil & Gas Operator | Dec 2001 |
| 28027 | Technical Energy Services, Inc. | Norman, OK 73070 | Oil & Gas Operator | Dec 2023 |
| 28028 | Technology & Engr. Careers Inc. | Houston, TX 77063 | Oil Operator | Dec 2017 |
| 28029 | Teco Oil & Gas, Inc. | Tampa, FL 33601 | Oil & Gas Operator | Nov 1997 |
| 28030 | Teco Operating Company | Athens, TX 75751 | Oil & Gas Operator | Jun 2001 |
| 28031 | Tecolote Energy Operating, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Oct 2023 |
| 28032 | Tecolote Petroleum Corp.,Inc. | Friendswood, TX 77546 | Oil & Gas Operator | Mar 2011 |
| 28033 | Tecpetrol Operating LLC | Houston, TX 77027 | Oil & Gas Operator | Dec 2015 |
| 28034 | Tecton Energy Operating LLC | | Oil Operator | Apr 2009 |
| 28035 | Ted Koble Operator | | Oil & Gas Operator | Nov 2007 |
| 28036 | Tedco | | Gas Operator | Nov 1988 |
| 28037 | Tedik Limited Partnership | Williamson, WV 25661-0000 | Gas Operator | Dec 2021 |
| 28038 | Tee Cee'S Inc | Drumright, OK 74030-3855 | Oil & Gas Operator | Dec 2023 |
| 28039 | Tee Operating Company | | Oil & Gas Operator | Jun 1989 |
| 28040 | Teepee Oil & Gas Inc | Yukon, OK 73085-0557 | Oil Operator | Dec 2006 |
| 28041 | Teg Midcontinent, Inc. | Aurora, CO 80014 | Oil Operator | Jul 2013 |
| 28042 | Tega Operating Co. | Dallas, TX 75201 | Oil & Gas Operator | Nov 2012 |
| 28043 | Tehi Illinois, LLC | Olney, IL 62450 | Oil & Gas Operator | Apr 2022 |
| 28044 | Teichgraeber Oil | | Oil Operator | Nov 1995 |
| 28045 | Teichgraeber Oil Co. | | Oil Operator | Dec 1994 |
| 28046 | Teichgraeber Oil, Inc. | Eureka, KS 67045 | Oil & Gas Operator | Jul 2023 |
| 28047 | Tej Ventures | | Oil & Gas Operator | Dec 2002 |
| 28048 | Tejas Gas Pipeline Company | Houston, TX 77010 | Oil & Gas Operator | Apr 1998 |
| 28049 | Tejas Gas Pipeline, L.P. | Houston, TX 77002 | Oil & Gas Operator | Feb 2002 |
| 28050 | Tejas Jack Sales, Inc. | Big Lake, TX 76932 | Oil & Gas Operator | Apr 2024 |
| 28051 | Tejas Operating Company, Inc. | Houston, TX 77257 | Oil & Gas Operator | May 1995 |
| 28052 | Tejas Operating LLC | Houston, TX 77056 | Oil & Gas Operator | Apr 2024 |
| 28053 | Tejas Operators, Inc. | Midland, TX 79702 | Oil & Gas Operator | Aug 2003 |
| 28054 | Tejas Permian Operating, LLC | Midland, TX 79702 | Oil & Gas Operator | Apr 2024 |
| 28055 | Tejas Petroleum Resources, LLC | Aubrey, TX 76227 | Oil & Gas Operator | Apr 2024 |
| 28056 | Tejas Production Company | | Oil Operator | Nov 1979 |
| 28057 | Tejas Trucking, Inc. | Andrews, TX 79714 | Oil & Gas Operator | Apr 2024 |
| 28058 | Tejas Western Corp. | Granbury, TX 76048 | Oil & Gas Operator | Jul 2018 |
| 28059 | Tejones Operating Corporation | San Antonio, TX 78217 | Oil & Gas Operator | Apr 2024 |
| 28060 | Teke Production LLC | Austin, TX 78746 | Oil Operator | Apr 2024 |
| 28061 | Tekenergy, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Mar 2015 |
| 28062 | Tekna Synergy Corporation | Midland, TX 79702 | Oil & Gas Operator | Apr 2024 |
| 28063 | Teko Oil & Gas I | | Oil Operator | Aug 1992 |
| 28064 | Teleo Operating, LLC | Dallas, TX 75219 | Oil & Gas Operator | Apr 2009 |
| 28065 | Telesis Operating Co. | Fort Worth, TX 76116 | Oil & Gas Operator | Apr 2024 |
| 28066 | Telico Minerals, L.L.C. | | Oil & Gas Operator | Sep 2019 |
| 28067 | Tellurian Operating LLC | | Oil & Gas Operator | Dec 2023 |
| 28068 | Tellus Energy, LLC | | Oil & Gas Operator | Dec 2023 |
| 28069 | Tellus Operating Group, LLC | | Oil & Gas Operator | Jan 2024 |
| 28070 | Tema Oil And Gas Company | Houston, TX 77084 | Oil & Gas Operator | Apr 2024 |
| 28071 | Tema Oil And Gas, LLC | Houston, TX 77040 | Oil & Gas Operator | Apr 2000 |
| 28072 | Tema Oil Company | Amarillo, TX 79101 | Oil & Gas Operator | Jun 2009 |
| 28073 | Temagami Oil & Gas LTD | | Oil & Gas Operator | May 2007 |
| 28074 | Tember Oil Company | Holliday, TX 76366 | Oil & Gas Operator | Apr 2024 |
| 28075 | Temblor Petroleum Co. LLC | | Oil & Gas Operator | Nov 2023 |
| 28076 | Temescal Resources LLC | | Oil & Gas Operator | Dec 2023 |
| 28077 | Temex Energy, Inc. | Oklahoma City, OK 73101 | Oil & Gas Operator | Feb 2002 |
| 28078 | Tempest Energy Resources, LP | Houston, TX 77251 | Oil & Gas Operator | Jun 2013 |
| 28079 | Tempest Oil Company, Inc. | | Oil & Gas Operator | Jul 1978 |
| 28080 | Templar Operating LLC | Oklahoma City, OK 73142 | Oil & Gas Operator | Dec 2023 |
| 28081 | Temple Oil & Gas Co | Crooksville, OH 43731 | Oil & Gas Operator | Dec 2023 |
| 28082 | Temple Oil Co | | Oil & Gas Operator | Oct 1992 |
| 28083 | Temple Resources LLC | | Oil Operator | Dec 2023 |
| 28084 | Templeton Energy Inc | | Oil & Gas Operator | Jul 1987 |
| 28085 | Templeton Oil, Inc. | Houston, TX 77002 | Oil & Gas Operator | Nov 1994 |
| 28086 | Tempo Energy, Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 2024 |
| 28087 | Tempo Resources GP, LLC | Mineral Wells, TX 76068 | Oil & Gas Operator | Apr 2013 |
| 28088 | Ten A Coal Company | Bridgeport, WV 26330 | Oil & Gas Operator | Dec 2020 |
| 28089 | Ten Grand Energy Company Inc | Nachogdoches, TX 75963-1880 | Oil Operator | Mar 2011 |
| 28090 | Tenaska Marketing Ventures | Omaha, NE 68154 | Oil & Gas Operator | Mar 2021 |
| 28091 | Tenaska Res LLC | Canonsburg, PA 15317 | Gas Operator | May 2020 |
| 28092 | Tend Oil Inc. | Tyler, TX 75703 | Oil & Gas Operator | Jul 1995 |
| 28093 | Tender Equity Corporation | Marietta, OH 45750 | Oil & Gas Operator | Dec 2007 |
| 28094 | Tenex Corporation | Houston, TX 77227 | Oil & Gas Operator | Dec 2007 |
| 28095 | Tenex Oil Corpor | | Oil Operator | May 1991 |
| 28096 | Tenexco Inc | Oakbrook Terrace, IL 60181 | Gas Operator | Dec 1998 |
| 28097 | Tengasco, Inc. | Houston, TX 77063 | Oil & Gas Operator | Dec 2023 |
| 28098 | Tenison Oil Comp | | Oil Operator | Jan 1993 |
| 28099 | Tenison Oil Company | Abilene, TX 79605 | Oil & Gas Operator | Apr 2024 |
| 28100 | Tenk, Lawrence O. | Ottawa, KS 66067 | Oil & Gas Operator | Oct 1998 |