| 11001 | Susanna Corporation | Breckenridge, TX 76424 | Oil & Gas Operator | Feb 2026 |
| 11002 | Sutherland Energy Co., LLC | Bridgeport, TX 76426 | Oil & Gas Operator | Feb 2026 |
| 11003 | Sutterfield-Tisdale-Payne, Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Jun 1998 |
| 11004 | Sutton Oil Co. | San Antonio, TX 78254 | Oil & Gas Operator | Feb 2026 |
| 11005 | Sutton Producing Corp. | San Antonio, TX 78270 | Oil & Gas Operator | Feb 2026 |
| 11006 | Sutton, John E. | Toledo, OH 43616 | Oil & Gas Operator | Feb 2026 |
| 11007 | Sutton, Robert E., Inc. | Odessa, TX 79760 | Oil & Gas Operator | Mar 1997 |
| 11008 | SV Energy Company, LLC | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Mar 2017 |
| 11009 | Sven Permian, LLC | Houston, TX 77243 | Oil & Gas Operator | Aug 2025 |
| 11010 | SW Operating, Inc. | Kilgore, TX 75662 | Oil & Gas Operator | Sep 2000 |
| 11011 | Swab Oil Co. | Midland, TX 79702 | Oil & Gas Operator | Feb 2026 |
| 11012 | Swaim, Charles | Tolar, TX 76476 | Oil & Gas Operator | Apr 2020 |
| 11013 | Swan PC, LP | Jacksboro, TX 76458 | Oil & Gas Operator | Feb 2026 |
| 11014 | Swan Production Co. | Jacksboro, TX 76458 | Oil & Gas Operator | Nov 2009 |
| 11015 | Swanner Properties | Wichita Falls, TX 76309 | Oil & Gas Operator | Feb 2026 |
| 11016 | Swanson & Vestal | Electra, TX 76360 | Oil & Gas Operator | Oct 1997 |
| 11017 | Swanson Operating, Inc. | Holliday, TX 76366 | Oil Operator | Feb 2026 |
| 11018 | Swanson, Tom | Electra, TX 76360 | Oil & Gas Operator | Oct 2004 |
| 11019 | Swanson, Tommy Oil Co. | Electra, TX 76360 | Oil & Gas Operator | Mar 2017 |
| 11020 | Swaringin, Howard Operating | Maryneal, TX 79535 | Oil & Gas Operator | May 2003 |
| 11021 | Swartz Oil Company | San Angelo, TX 76906 | Oil & Gas Operator | Feb 2026 |
| 11022 | Swartz, Guy A. | San Angelo, TX 76904 | Oil & Gas Operator | Aug 1993 |
| 11023 | Sweet Crude Operating LLC | Brenham, TX 77834 | Oil & Gas Operator | Feb 2026 |
| 11024 | Sweet Texas T Energy LLC | Clyde, TX 79510 | Oil Operator | Feb 2026 |
| 11025 | Sweetwater Drilling Co., Inc. | Fort Worth, TX 76116 | Oil & Gas Operator | Feb 2026 |
| 11026 | Sweetwater Production, Inc. | San Angelo, TX 76906 | Oil & Gas Operator | Feb 2026 |
| 11027 | Swenson Backhoe Service, Inc. | Electra, TX 76360 | Oil Operator | Feb 2026 |
| 11028 | Swenson, Clifford E. | Henrietta, TX 76365 | Oil & Gas Operator | Feb 2026 |
| 11029 | Swepi LP | Houston, TX 77079 | Oil & Gas Operator | Jul 2020 |
| 11030 | Swiess & Thomas | San Antonio, TX 78247 | Oil Operator | Feb 2026 |
| 11031 | Swift Energy Company | Houston, TX 77060 | Oil & Gas Operator | Mar 2021 |
| 11032 | Swift Energy Operating, LLC | Houston, TX 77079 | Oil & Gas Operator | Jun 2017 |
| 11033 | SWJN Oil Company | Kilgore, TX 75663 | Oil Operator | Feb 2026 |
| 11034 | SWN Production Company, LLC | Spring, TX 77391 | Oil & Gas Operator | Dec 2025 |
| 11035 | SWN Production LLC | Spring, TX 77389-4954 | Oil & Gas Operator | Feb 2022 |
| 11036 | Swope Corp. | Austin, TX 78735 | Oil & Gas Operator | Feb 2026 |
| 11037 | Swordfish Energy Operating, LLC | Houston, TX 77060 | Oil & Gas Operator | Feb 2026 |
| 11038 | SWS | Humble, TX 77338 | Oil Operator | Feb 2026 |
| 11039 | Sydri Operating, LLC | Dallas, TX 75231 | Oil & Gas Operator | Feb 2026 |
| 11040 | Sydson Energy, Inc. | Houston, TX 77027 | Oil & Gas Operator | Feb 2026 |
| 11041 | Syj Oil & Gas | San Antonio, TX 78209 | Oil Operator | Sep 2000 |
| 11042 | Syj Oil & Gas, Inc. | San Antonio, TX 78209 | Oil & Gas Operator | Feb 2026 |
| 11043 | Sylvan Energy, LLC | Pittsburgh, PA 15211 | Oil & Gas Operator | Feb 2026 |
| 11044 | Symank, Steve | Olney, TX 76374 | Oil & Gas Operator | Feb 2026 |
| 11045 | Symba American Oil, Inc | Houston, TX 77056 | Oil Operator | Feb 2026 |
| 11046 | Synergex Inc | Oklahoma City, OK 73134 | Oil & Gas Operator | Nov 2025 |
| 11047 | Synergy Oil & Gas, Inc. (A) | Houston, TX 77024 | Oil & Gas Operator | Aug 2001 |
| 11048 | Synergy Oil & Gas, L.P. | Houston, TX 77024 | Oil & Gas Operator | May 2012 |
| 11049 | Synergy Operating Co., LLC | Dallas, TX 75225 | Oil & Gas Operator | Feb 2026 |
| 11050 | Synergy Production Company | Houston, TX 77024 | Oil & Gas Operator | Jan 1996 |
| 11051 | Syntax Energy Corporation | Denton, TX 76210 | Oil Operator | Feb 2026 |
| 11052 | Synthetic Energy Corporation | Houston, TX 77006 | Oil Operator | Feb 2026 |
| 11053 | T & C Oil, Inc. | Lubbock, TX 79424 | Oil & Gas Operator | Apr 2024 |
| 11054 | T & D Oil | Wichita Falls, TX 76307 | Oil & Gas Operator | Feb 2026 |
| 11055 | T & G Energy LLC | Dallas, TX 75230 | Oil Operator | Nov 2010 |
| 11056 | T & G Oil, Inc. | White Oak, TX 75693 | Oil & Gas Operator | Dec 2010 |
| 11057 | T & I Petroleum Co., Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2005 |
| 11058 | T & J Oil Production, L.L.C. | Lone Grove, OK 73443 | Oil & Gas Operator | Nov 2025 |
| 11059 | T & M Oil Company | Midlothian, TX 76065 | Oil & Gas Operator | Feb 2026 |
| 11060 | T & R Investments, Inc. | Borger, TX 79008 | Oil & Gas Operator | Nov 1995 |
| 11061 | T & S Oil & Gas, LLC | Graham, TX 76450 | Gas Operator | Feb 2026 |
| 11062 | T & T Oil Co. | San Antonio, TX 78205 | Oil & Gas Operator | Dec 2002 |
| 11063 | T & T Production Co. | Victoria, TX 77902 | Oil & Gas Operator | Feb 1995 |
| 11064 | T - C Oil Company | Refugio, TX 78377 | Oil & Gas Operator | Jan 2012 |
| 11065 | T C Operating | Archer City, TX 76351 | Oil & Gas Operator | Sep 2016 |
| 11066 | T Dozer D Oil Co. | Goree, TX 76363 | Oil & Gas Operator | Feb 2026 |
| 11067 | T Investments Inc | Oklahoma City, OK 73118-1401 | Oil & Gas Operator | Mar 2011 |
| 11068 | T M Hopkins Operating Co | Kilgore, TX 75663 | Oil & Gas Operator | Oct 2002 |
| 11069 | T W Clemons Operating Co., LLC | Minden, LA 71055 | Oil & Gas Operator | Feb 2026 |
| 11070 | T&R Energy Services | Pampa, TX 79065 | Oil & Gas Operator | Feb 2026 |
| 11071 | T&T Energy LLC | Wooster, OH 44691 | Oil & Gas Operator | Dec 2024 |
| 11072 | T-Bar-X Limited Company | Houston, TX 77057 | Oil & Gas Operator | Dec 2005 |
| 11073 | T-C Oil Company, LLC | Refugio, TX 78377 | Oil & Gas Operator | Feb 2026 |
| 11074 | T-M Well Service | Jefferson, TX 75657 | Oil & Gas Operator | Sep 2004 |
| 11075 | T-M Well Service, L.L.C. | Jefferson, TX 75657 | Oil & Gas Operator | Dec 2024 |
| 11076 | T-N-T Engineering, Inc. | Fort Worth, TX 76107 | Oil & Gas Operator | Feb 2026 |
| 11077 | T-Square Petroleum | Rising Star, TX 76471 | Oil & Gas Operator | Feb 2026 |
| 11078 | T-Square Petroleum Co. | Rising Star, TX 76471 | Oil & Gas Operator | Feb 2026 |
| 11079 | T-Y Development Corp | Perryton, TX 79070 | Oil & Gas Operator | Feb 2026 |
| 11080 | T. A. W. Company | Kingsbury, TX 78638 | Oil & Gas Operator | Feb 2026 |
| 11081 | T. And M. Production | Oil City, LA 71061 | Oil & Gas Operator | Feb 2026 |
| 11082 | T. J. Oil And Gas, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Oct 2002 |
| 11083 | T. L. J. Incorporated | Big Lake, TX 76932 | Oil & Gas Operator | Dec 1998 |
| 11084 | T. N. T. Energy Co. | Belcher, LA 71004 | Oil Operator | May 1991 |
| 11085 | T. R. Production, Inc. | Pilot Point, TX 76258 | Oil & Gas Operator | Jul 2021 |
| 11086 | T. W. Drilling Co. | Abilene, TX 79601 | Oil & Gas Operator | Aug 2002 |
| 11087 | T.D. Operating Company, Inc. | New Braunfels, TX 78130 | Oil & Gas Operator | Nov 1999 |
| 11088 | T.F. Well Service, L.L.C. | Iowa Park, TX 76367 | Oil Operator | Feb 2026 |
| 11089 | T.G. Energy Co. | Abilene, TX 79602 | Oil & Gas Operator | Mar 2008 |
| 11090 | T.G.B., Inc. | Midland, TX 79702 | Oil & Gas Operator | Feb 2026 |
| 11091 | T.L.S. Oil Co. | Hawley, TX 79525 | Oil & Gas Operator | Feb 2026 |
| 11092 | T.O.I. | Midland, TX 79710 | Oil & Gas Operator | Mar 2001 |
| 11093 | T2 Operating Corporation | Denver, CO 80202 | Oil & Gas Operator | Feb 2026 |
| 11094 | Tab Operating, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Feb 2026 |
| 11095 | Tabbs Bay Production Company | Houston, TX 77019 | Oil Operator | Feb 2026 |
| 11096 | Tabco Exploration Inc. | New Orleans, LA 70131 | Oil & Gas Operator | Dec 1998 |
| 11097 | Taber, Alan R. | La Vernia, TX 78121 | Oil Operator | Feb 2026 |
| 11098 | Tabor Creek Oil Company | Albany, TX 76430 | Oil & Gas Operator | Feb 2026 |
| 11099 | Tabula Rasa Energy, LLC | Allen, TX 75013 | Oil & Gas Operator | Dec 2020 |
| 11100 | Tacor Resources Inc | Midland, TX 79705 | Oil & Gas Operator | Feb 2026 |