| 10901 | TCRG Drilling & Operating, LLC | Fort Worth, TX 76107 | Oil Operator | Oct 2025 |
| 10902 | TCS Petroleum Co., LLC | Abilene, TX 79608 | Oil & Gas Operator | Oct 2025 |
| 10903 | TCT Operating Company, Inc. | Johnson City, TX 78636 | Oil & Gas Operator | Feb 2017 |
| 10904 | TD Natural Resources LLC | Cuero, TX 77954 | Oil & Gas Operator | Oct 2025 |
| 10905 | TD Oil & Gas LLC | Duncan, OK 73533-1851 | Oil Operator | Apr 2023 |
| 10906 | TDC Engineering, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Oct 2025 |
| 10907 | TDT Production, Inc. | Capitola, CA 95010 | Oil & Gas Operator | Aug 2003 |
| 10908 | TDX Energy, LLC | Shreveport, LA 71101 | Oil & Gas Operator | Dec 2024 |
| 10909 | Te-Ray Resources, Inc. | Oklahoma City, OK 73108 | Oil & Gas Operator | Mar 2015 |
| 10910 | Te-Ray Resources, LLC | Oklahoma City, OK 73142 | Oil & Gas Operator | Oct 2025 |
| 10911 | Teaco | Snyder, TX 79550 | Oil & Gas Operator | Jan 1998 |
| 10912 | Teague Operating Co. | Mabank, TX 75147 | Oil & Gas Operator | Jul 1995 |
| 10913 | Teague, J. V. & Robinson, E. W. | Olney, TX 76374 | Oil & Gas Operator | May 1996 |
| 10914 | Teakwood Operating LLC | Midland, TX 79701 | Oil & Gas Operator | Nov 2019 |
| 10915 | Teal Energy USA, Inc. | Houston, TX 77057 | Oil & Gas Operator | Oct 2025 |
| 10916 | Teal Exploration, LLC | Abilene, TX 79602 | Oil Operator | Oct 2025 |
| 10917 | Teal Operating, LLC | Dallas, TX 75225 | Oil & Gas Operator | Oct 2021 |
| 10918 | Team Operating, L.L.C. | Pinehurst, TX 77362 | Oil & Gas Operator | Oct 2025 |
| 10919 | Teamco Operating LLC | Houston, TX 77042 | Oil & Gas Operator | Oct 2002 |
| 10920 | Tech Resources, Inc. | Georgetown, TX 78628 | Oil & Gas Operator | Dec 2001 |
| 10921 | Technical Energy Services, Inc. | Norman, OK 73070 | Oil & Gas Operator | Jun 2025 |
| 10922 | Technology & Engr. Careers Inc. | Houston, TX 77063 | Oil Operator | Dec 2017 |
| 10923 | Teco Oil & Gas, Inc. | Tampa, FL 33601 | Oil & Gas Operator | Nov 1997 |
| 10924 | Teco Operating Company | Athens, TX 75751 | Oil & Gas Operator | Jun 2001 |
| 10925 | Tecolote Energy Operating, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Jan 2024 |
| 10926 | Tecolote Petroleum Corp.,Inc. | Friendswood, TX 77546 | Oil & Gas Operator | Mar 2011 |
| 10927 | Tecpetrol Operating LLC | Houston, TX 77027 | Oil & Gas Operator | Dec 2015 |
| 10928 | Tega Operating Co. | Dallas, TX 75201 | Oil & Gas Operator | Nov 2012 |
| 10929 | Tejas Gas Pipeline Company | Houston, TX 77010 | Oil & Gas Operator | Apr 1998 |
| 10930 | Tejas Gas Pipeline, L.P. | Houston, TX 77002 | Oil & Gas Operator | Feb 2002 |
| 10931 | Tejas Jack Sales, Inc. | Big Lake, TX 76932 | Oil & Gas Operator | Oct 2025 |
| 10932 | Tejas Operating Company, Inc. | Houston, TX 77257 | Oil & Gas Operator | May 1995 |
| 10933 | Tejas Operating LLC | Houston, TX 77056 | Oil & Gas Operator | Oct 2025 |
| 10934 | Tejas Operators, Inc. | Midland, TX 79702 | Oil & Gas Operator | Aug 2003 |
| 10935 | Tejas Permian Operating, LLC | Midland, TX 79702 | Oil & Gas Operator | Oct 2025 |
| 10936 | Tejas Petroleum Resources, LLC | Aubrey, TX 76227 | Oil & Gas Operator | Oct 2025 |
| 10937 | Tejas Trucking, Inc. | Andrews, TX 79714 | Oil & Gas Operator | Oct 2025 |
| 10938 | Tejas Western Corp. | Granbury, TX 76048 | Oil & Gas Operator | Jul 2018 |
| 10939 | Tejones Operating Corporation | San Antonio, TX 78217 | Oil & Gas Operator | Oct 2025 |
| 10940 | Teke Production LLC | Houston, TX 77269 | Oil Operator | Oct 2025 |
| 10941 | Tekna Synergy Corporation | Midland, TX 79702 | Oil & Gas Operator | Oct 2025 |
| 10942 | Teleo Operating, LLC | Dallas, TX 75219 | Oil & Gas Operator | Apr 2009 |
| 10943 | Telesis Operating Co. | Fort Worth, TX 76116 | Oil & Gas Operator | Oct 2025 |
| 10944 | Tema Oil And Gas Company | Houston, TX 77084 | Oil & Gas Operator | Oct 2025 |
| 10945 | Tema Oil And Gas, LLC | Houston, TX 77040 | Oil & Gas Operator | Apr 2000 |
| 10946 | Tember Oil Company | Holliday, TX 76366 | Oil & Gas Operator | Oct 2025 |
| 10947 | Tempest Energy Resources, LP | Houston, TX 77251 | Oil & Gas Operator | Jun 2013 |
| 10948 | Templar Operating LLC | Oklahoma City, OK 73142 | Oil & Gas Operator | Jun 2025 |
| 10949 | Templeton Oil, Inc. | Houston, TX 77002 | Oil & Gas Operator | Nov 1994 |
| 10950 | Tempo Energy, Inc. | Midland, TX 79702 | Oil & Gas Operator | Oct 2025 |
| 10951 | Tempo Resources GP, LLC | Mineral Wells, TX 76068 | Oil & Gas Operator | Apr 2013 |
| 10952 | Tend Oil Inc. | Tyler, TX 75703 | Oil & Gas Operator | Jul 1995 |
| 10953 | Tenex Corporation | Houston, TX 77227 | Oil & Gas Operator | Dec 2007 |
| 10954 | Tenexco Inc | Oakbrook Terrace, IL 60181 | Gas Operator | Dec 1998 |
| 10955 | Tengasco, Inc. | Houston, TX 77063 | Oil & Gas Operator | Jun 2025 |
| 10956 | Tenison Oil Company | Abilene, TX 79605 | Oil & Gas Operator | Jun 2025 |
| 10957 | Tenneco Oil Company | Oklahoma City, OK 73125 | Oil & Gas Operator | Jul 2025 |
| 10958 | Tennessee Gas Pipeline Company, LLC | Houston, TX 77002 | Oil Operator | Dec 2024 |
| 10959 | Tensas Delta Explo. Co., LLC | Shreveport, LA 71101 | Oil & Gas Operator | Dec 2011 |
| 10960 | Teon Management, LLC | Midland, TX 79704 | Oil & Gas Operator | Mar 2020 |
| 10961 | Tep Barnett USA, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Oct 2025 |
| 10962 | Tepco Resources, Inc. | Houston, TX 77027 | Oil & Gas Operator | Sep 2004 |
| 10963 | Tepco, Inc. | Houston, TX 77002 | Oil & Gas Operator | Oct 1999 |
| 10964 | Tepee Petroleum Company, Inc. | Houston, TX 77098 | Oil & Gas Operator | Feb 2014 |
| 10965 | Terra Locus Services | Seguin, TX 78155 | Oil & Gas Operator | Jun 2000 |
| 10966 | Terrace Petroleum Corporation | Midland, TX 79701 | Oil & Gas Operator | Jul 2013 |
| 10967 | Terrafina Energy, LLC | San Antonio, TX 78280 | Oil & Gas Operator | Oct 2025 |
| 10968 | Terrapin Energy LLC | Okmulgee, OK 74447 | Oil Operator | Jun 2025 |
| 10969 | Terreland Corporation | Sunray, TX 79086 | Oil & Gas Operator | Oct 2004 |
| 10970 | Terrell Oil & Gas Production Co. | Hamlin, TX 79520 | Oil & Gas Operator | Oct 2025 |
| 10971 | Terrick Resources | Midland, TX 79708 | Oil & Gas Operator | Jul 2005 |
| 10972 | Terry Enterprises, Inc. | West Columbia, TX 77486 | Oil & Gas Operator | Oct 2025 |
| 10973 | Terry Petroleum Company | Houston, TX 77270 | Oil & Gas Operator | Dec 1997 |
| 10974 | Terry'S Roustabout Service, Inc. | Throckmorton, TX 76483 | Oil & Gas Operator | Oct 2002 |
| 10975 | Terry, Lewis D. | Olney, TX 76374 | Oil & Gas Operator | Sep 1995 |
| 10976 | Terry, R. K. | West Columbia, TX 77486 | Oil & Gas Operator | Oct 2025 |
| 10977 | Tesoro E&P Company, L.P. | San Antonio, TX 78216 | Oil & Gas Operator | Jan 2000 |
| 10978 | Tesoro Expl. & Prod. Company | San Antonio, TX 78216 | Gas Operator | Sep 2010 |
| 10979 | Tess Oil Company | Borger, TX 79008 | Oil & Gas Operator | Mar 2008 |
| 10980 | Tessara Petroleum Resources, LLC | Houston, TX 77086 | Oil & Gas Operator | Apr 2020 |
| 10981 | Tesuque Oil & Gas LLC | Rockdale, TX 76567 | Oil Operator | Oct 2025 |
| 10982 | Teton Petroleum Corporation | Kerrville, TX 78028 | Oil & Gas Operator | Oct 2025 |
| 10983 | Tetragon Investments, LLC | Abilene, TX 79604 | Oil Operator | Jul 2014 |
| 10984 | Tettleton, Jon Otis | Nocona, TX 76255 | Oil & Gas Operator | Aug 2003 |
| 10985 | Tettleton, Steven B. | Nocona, TX 76255 | Oil Operator | Oct 2025 |
| 10986 | Tex-Am Petroleum Corp. | Eastland, TX 76448 | Oil & Gas Operator | Oct 2025 |
| 10987 | Tex-Am-Energy Inc. | Dallas, TX 75205 | Oil & Gas Operator | Mar 2008 |
| 10988 | Tex-Ann Oil & Gas Services, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Oct 2025 |
| 10989 | Tex-Atic Resources, Inc. | S. Lake Tahoe, CA 96150 | Oil & Gas Operator | Oct 2025 |
| 10990 | Tex-Lee Operating Company | Giddings, TX 78942 | Oil & Gas Operator | Oct 2025 |
| 10991 | Tex-Oak, Inc. | Oklahoma City, OK 73155 | Oil & Gas Operator | Dec 1995 |
| 10992 | Tex-Ok Energy, Limited Partnership | Cody, WY 82414 | Oil & Gas Operator | Jul 2025 |
| 10993 | Tex-Ok Energy, LTD Partnership | Cody, WY 82414 | Oil & Gas Operator | Oct 2025 |
| 10994 | Tex-R Energy, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Feb 2021 |
| 10995 | Tex-Well Oil & Gas Corp. | Pampa, TX 79066 | Oil & Gas Operator | Aug 2003 |
| 10996 | Texacal, Inc. | Newport Beach, CA 92660 | Oil & Gas Operator | Oct 2025 |
| 10997 | Texaco E & P Inc | Houston, TX 77099 | Oil & Gas Operator | Oct 2025 |
| 10998 | Texaco Expl. And Prod. Inc. | Houston, TX 77236 | Oil & Gas Operator | Jun 2025 |
| 10999 | Texaco Exploration & Prod | Midland, TX 79702 | Oil & Gas Operator | Aug 2002 |
| 11000 | Texaco Inc | Kingfisher, OK 73750 | Oil & Gas Operator | Dec 2017 |