| 10901 | Taft Investment Co., Inc. | Taft, TX 78390 | Oil Operator | Apr 2025 |
| 10902 | Tag Enterprises Inc | Shelocta, PA 15774-0310 | Gas Operator | Dec 2016 |
| 10903 | Tag Oil | La Vernia, TX 78121 | Oil Operator | Apr 2025 |
| 10904 | Tag Operating Company, Inc. | Houston, TX 77092 | Oil & Gas Operator | Apr 2025 |
| 10905 | Tahiti PTRS Enrgy Solutions Corp | Long Beach, CA 90807 | Oil Operator | Apr 2025 |
| 10906 | Tahoe Energy, Inc. | Midland, TX 79703 | Oil & Gas Operator | Jul 1996 |
| 10907 | Tahoe Exploration Inc. | Abilene, TX 79608 | Oil & Gas Operator | Mar 2016 |
| 10908 | Tal-Con, Inc. | Houston, TX 77279 | Oil & Gas Operator | Apr 2025 |
| 10909 | Talaria Oil & Gas LLC | Denver, CO 80203 | Oil Operator | Apr 2025 |
| 10910 | Talbert, Eugene Operating Co,Inc | Tyler, TX 75702 | Oil & Gas Operator | Dec 1997 |
| 10911 | Talbott, Stan C. | Midland, TX 79701 | Oil & Gas Operator | Feb 2005 |
| 10912 | Taleeho Energy Co. | Normangee, TX 77871 | Oil & Gas Operator | Jun 2003 |
| 10913 | Talisman Energy USA Inc. | The Woodlands, TX 77381 | Oil & Gas Operator | May 2016 |
| 10914 | Talisman Resources, Inc. | Argyle, TX 76226 | Oil & Gas Operator | Mar 1995 |
| 10915 | Tall City Operations III LLC | Midland, TX 79702 | Oil & Gas Operator | Jun 2023 |
| 10916 | Tall City Operations LLC | Midland, TX 79702 | Oil & Gas Operator | Feb 2016 |
| 10917 | Tall Dune Resources, LLC | Boerne, TX 78006 | Oil & Gas Operator | Apr 2025 |
| 10918 | Talley Resources, Inc. | Houma, LA 70360 | Oil & Gas Operator | Apr 1993 |
| 10919 | Talley, Don R. | Holliday, TX 76366 | Oil & Gas Operator | Jun 2002 |
| 10920 | Talley, W.T. | Olney, TX 76374 | Oil & Gas Operator | May 2005 |
| 10921 | Tallgrass Energy, L.L.C. | Tulsa, OK 74136 | Oil & Gas Operator | Apr 2025 |
| 10922 | Tallgrass Production Company LLC | Santa Anna, TX 76878 | Oil & Gas Operator | Mar 2014 |
| 10923 | Talon Development Company | Boerne, TX 78006 | Oil & Gas Operator | Sep 2007 |
| 10924 | Talon Oil & Gas LLC | Dallas, TX 75243 | Oil & Gas Operator | Dec 2010 |
| 10925 | Talon Production, Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Apr 2025 |
| 10926 | Talos Gulf Coast Onshore LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2024 |
| 10927 | Talus Inc | Graham, TX 76450-1210 | Oil & Gas Operator | Feb 2017 |
| 10928 | Tam2 Squared Energy Services,LLC | Ranger, TX 76470 | Oil Operator | Apr 2025 |
| 10929 | Tam2 Squared Operating, LLC | Ranger, TX 76470 | Oil & Gas Operator | Apr 2025 |
| 10930 | Tamarack Petroleum Company, Inc. | Midland, TX 79701 | Oil & Gas Operator | Apr 2025 |
| 10931 | Tamarron Resources, Inc. | Azle, TX 76020 | Oil & Gas Operator | Apr 2025 |
| 10932 | Tamer Oil & Gas | Seminole, TX 79360 | Oil & Gas Operator | Apr 2025 |
| 10933 | Tammany Exploration Company LLC | Houston, TX 77070 | Gas Operator | Jul 2012 |
| 10934 | Tampke Service Co. | Devine, TX 78016 | Oil Operator | Apr 2025 |
| 10935 | Tana Exploration Company LLC | Dallas, TX 75219 | Oil & Gas Operator | Aug 2021 |
| 10936 | Tana Oil And Gas Corporation | Irving, TX 75062 | Oil & Gas Operator | Mar 2000 |
| 10937 | Tandem Energy Corporation | Houston, TX 77056 | Oil & Gas Operator | Apr 2025 |
| 10938 | Tanglehead Operating, LLC | La Vernia, TX 78121 | Oil Operator | Apr 2025 |
| 10939 | Tanglewood Oil & Gas Co. | Gouldbusk, TX 76845 | Oil & Gas Operator | Apr 2025 |
| 10940 | Tanglewood Oil & Gas LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Oct 2017 |
| 10941 | Tankersley, D. C. | Abilene, TX 79601 | Oil & Gas Operator | Sep 2002 |
| 10942 | Tanos Exploration II, LLC | Tyler, TX 75701 | Oil & Gas Operator | Sep 2023 |
| 10943 | Tanos Exploration IV, LLC | Tyler, TX 75701 | Oil & Gas Operator | Apr 2025 |
| 10944 | Tanos Exploration, LLC | Houston, TX 77010 | Oil & Gas Operator | Oct 2018 |
| 10945 | Tanos Production, Inc. | Houston, TX 77077 | Oil & Gas Operator | Aug 2003 |
| 10946 | Taos Resources Operating Co LLC | Houston, TX 77037 | Oil & Gas Operator | Dec 2019 |
| 10947 | Tap Operating Company, Inc. | Mexia, TX 76667 | Oil & Gas Operator | May 1995 |
| 10948 | Tap Rock Operating, LLC | Golden, CO 80401 | Oil & Gas Operator | Apr 2025 |
| 10949 | Tapstone Energy LLC | Oklahoma City, OK 73101 | Oil & Gas Operator | Feb 2025 |
| 10950 | Tara Company, The | Wichita Falls, TX 76301 | Oil Operator | Sep 2003 |
| 10951 | Tara Operating Co. | Lamesa, TX 79331 | Oil & Gas Operator | Aug 2003 |
| 10952 | Tare Resources, LLC | Corpus Chrsti, TX 78426 | Oil & Gas Operator | Apr 2025 |
| 10953 | Targa Midstream Services LLC | Houston, TX 77002 | Oil Operator | Mar 2023 |
| 10954 | Targa Pipeline Mid-Continent LLC | Sulphur, LA 70665 | Oil & Gas Operator | Jun 2018 |
| 10955 | Targo Oil & Gas, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Apr 2025 |
| 10956 | Tarpon Oil & Gas Co. | Fort Worth, TX 76147 | Oil & Gas Operator | Apr 2025 |
| 10957 | Tarpon Oil Company | Fort Worth, TX 76107 | Oil & Gas Operator | Mar 2017 |
| 10958 | Tarrant Operators, Inc. | Fort Worth, TX 76107 | Oil & Gas Operator | Feb 1994 |
| 10959 | Tartan Resources Corporation | Houston, TX 77251 | Oil & Gas Operator | Oct 1995 |
| 10960 | Tasca Exploration Company | Houston, TX 77257 | Oil & Gas Operator | Jun 2002 |
| 10961 | Tascosa Petroleum Corporation | Amarillo, TX 79105 | Oil & Gas Operator | Apr 2025 |
| 10962 | Tat, Inc. | Oklahoma City, OK 73127 | Oil & Gas Operator | Feb 2023 |
| 10963 | Tatanka Operating, LLC | Whitesboro, TX 76273 | Oil & Gas Operator | Apr 2025 |
| 10964 | Tate, Larry V. Operating, Inc. | Kilgore, TX 75662 | Oil & Gas Operator | Apr 2002 |
| 10965 | Taubert & Steed | Wichita Falls, TX 76301 | Oil & Gas Operator | Aug 2001 |
| 10966 | Taurus Exploration U.S.A., Inc. | Midland, TX 79705 | Oil & Gas Operator | Nov 1998 |
| 10967 | Taurus Minerals, Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 2025 |
| 10968 | Taurus Operating, Inc. | Midland, TX 79710 | Oil & Gas Operator | Apr 2025 |
| 10969 | Taurus Petroleum, Inc. (A) | San Antonio, TX 78259 | Oil & Gas Operator | Jul 1996 |
| 10970 | Tawa Operating Co., Inc. | Mertzon, TX 76941 | Oil & Gas Operator | May 2019 |
| 10971 | Tayco Petroleum | Abilene, TX 79608 | Oil & Gas Operator | Nov 1996 |
| 10972 | Taylor & Smith | Gainesville, TX 76240 | Oil & Gas Operator | Apr 2025 |
| 10973 | Taylor Energy Corporation | Amarillo, TX 79114 | Oil & Gas Operator | Feb 1999 |
| 10974 | Taylor Oil & Gas Serv | Snyder, TX 79549 | Oil Operator | Apr 2025 |
| 10975 | Taylor Properties | Wichita Falls, TX 76301 | Gas Operator | Apr 2025 |
| 10976 | Taylor Two Energy, LLC | Big Spring, TX 79720 | Oil & Gas Operator | Aug 2019 |
| 10977 | Taylor, Ben J. Inc. | Fort Worth, TX 76185 | Oil & Gas Operator | Feb 2022 |
| 10978 | Taylor, Dutch | Graham, TX 76450 | Oil & Gas Operator | Jan 2016 |
| 10979 | Taylor, Frank Well Service | Cross Plains, TX 76443 | Oil & Gas Operator | Aug 2003 |
| 10980 | Taylor, G. E. | Bridgeport, TX 76426 | Oil & Gas Operator | Jan 2001 |
| 10981 | Taylor, G. E. Inc. | Bridgeport, TX 76426 | Oil & Gas Operator | Jul 2007 |
| 10982 | Taylor, Gordon Oil Company | Sunray, TX 79086 | Oil & Gas Operator | Apr 1996 |
| 10983 | Taylor, Gordon Oil Company, LP | Sunray, TX 79086 | Oil & Gas Operator | Feb 2014 |
| 10984 | Taylor, J. S. Inc. | Lewisville, TX 75057 | Oil & Gas Operator | Apr 2025 |
| 10985 | Taylor, Raymond C. Jr. | Woodway, TX 76712 | Oil & Gas Operator | Dec 2012 |
| 10986 | Taylor, Smith And Kimbell | Gainesville, TX 76240 | Oil & Gas Operator | Mar 2012 |
| 10987 | Taylor-Clayton-Hawley | Wichita Falls, TX 76301 | Oil & Gas Operator | Nov 2019 |
| 10988 | Taylor-Link Operating Co. | Midland, TX 79702 | Oil & Gas Operator | Apr 2017 |
| 10989 | Taylor-McIlhenny Oper. Co., Inc. | Lewisville, TX 75029 | Oil & Gas Operator | Jan 1996 |
| 10990 | TB Operating, LLC | Borger, TX 79008 | Oil & Gas Operator | Jun 2018 |
| 10991 | TB Petroleum, LLC | Petrolia, TX 76377 | Oil & Gas Operator | Apr 2025 |
| 10992 | TBC Petroleum | Cuero, TX 77954 | Oil & Gas Operator | Sep 2023 |
| 10993 | TBM Catarina, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2025 |
| 10994 | TC Energy LLC | Covington, OK 73730-2116 | Oil & Gas Operator | Sep 2014 |
| 10995 | TC Oil And Gas, LLC | Denton, TX 76205 | Oil Operator | Apr 2025 |
| 10996 | TC3 Energy Company | Dallas, TX 75248 | Oil & Gas Operator | Apr 2025 |
| 10997 | TC3 Energy Services Company | Bryan, TX 77805 | Oil & Gas Operator | Jan 2005 |
| 10998 | TCF Energy, Inc. | Midland, TX 79704 | Oil & Gas Operator | Dec 2004 |
| 10999 | TCS Petroleum Co., LLC | Abilene, TX 79608 | Oil & Gas Operator | Apr 2025 |
| 11000 | TCT Operating Company, Inc. | Johnson City, TX 78636 | Oil & Gas Operator | Feb 2017 |