| 28401 | Texas Crude Oil Co. | | Oil & Gas Operator | Dec 1984 |
| 28402 | Texas Crude Oil Co. Et Al | | Oil & Gas Operator | May 1992 |
| 28403 | Texas Crude Oil, Inc. | | Oil & Gas Operator | Dec 1984 |
| 28404 | Texas Crude Operator, Inc. | Houston, TX 77098 | Oil & Gas Operator | Aug 2017 |
| 28405 | Texas Crude, Inc. | Houston, TX 77256 | Oil & Gas Operator | Oct 1995 |
| 28406 | Texas Crude-Rebstock & Reeves | | Oil & Gas Operator | Feb 1980 |
| 28407 | Texas Crude-Wainoco-Hilliard | | Oil & Gas Operator | Jul 1978 |
| 28408 | Texas Eastern Skyline Oil | Houston, TX 77252 | Oil & Gas Operator | Jan 1987 |
| 28409 | Texas Eastern Transm. Corp. | | Oil & Gas Operator | Dec 2002 |
| 28410 | Texas Energen Inc. | Austin, TX 78731 | Oil & Gas Operator | May 2026 |
| 28411 | Texas Energies I | | Oil & Gas Operator | Aug 1994 |
| 28412 | Texas Energies Inc | Pratt, KS 67124 | Oil & Gas Operator | Aug 1998 |
| 28413 | Texas Energy & Environmental | Houston, TX 77070 | Oil & Gas Operator | Nov 1998 |
| 28414 | Texas Energy & Environmental Inc | Houston, TX 77269 | Oil & Gas Operator | Oct 1998 |
| 28415 | Texas Energy Mutual LLC | Grapevine, TX 76051-8145 | Oil Operator | Jun 2018 |
| 28416 | Texas Energy Operations, LC | Wichita Falls, TX 76301 | Oil & Gas Operator | May 2026 |
| 28417 | Texas Energy Sources, Inc. | Midland, TX 79708 | Oil & Gas Operator | Mar 2008 |
| 28418 | Texas Energy Trust Company | Midland, TX 79701 | Oil & Gas Operator | Jun 2016 |
| 28419 | Texas Exploration & Prod. Co. | Gainesville, TX 76240 | Oil & Gas Operator | Apr 1996 |
| 28420 | Texas Fuel Company | Galveston, TX 77550 | Oil & Gas Operator | May 2026 |
| 28421 | Texas Gas Exploration Corp. | | Oil & Gas Operator | Nov 1986 |
| 28422 | Texas Gas Resources, Inc. | Houston, TX 77292 | Oil & Gas Operator | Jul 2009 |
| 28423 | Texas Gas Transmission Corp. | | Oil Operator | Aug 2003 |
| 28424 | Texas Gas Transmission, LLC | Owensboro, KY 42301 | Oil & Gas Operator | Dec 2024 |
| 28425 | Texas General Petroleum Corp | | Oil & Gas Operator | Aug 1984 |
| 28426 | Texas Gulf Gas Corporation | Fayetteville, TX 78940 | Oil & Gas Operator | Jun 2005 |
| 28427 | Texas Hydrogen Energy Corp. | Midland, TX 79702 | Oil & Gas Operator | May 1999 |
| 28428 | Texas Ind. Exploration, Inc. | | Oil & Gas Operator | Oct 2001 |
| 28429 | Texas Independent Explor LTD. | Houston, TX 77024 | Oil & Gas Operator | May 2026 |
| 28430 | Texas Independent Explor., Inc. | Houston, TX 77002 | Oil & Gas Operator | Oct 2002 |
| 28431 | Texas Independent Exploration LP | Houston, TX 77024 | Oil & Gas Operator | Mar 2017 |
| 28432 | Texas Independent Oil Co., LLC | Argyle, TX 76226 | Oil & Gas Operator | May 2026 |
| 28433 | Texas International Oper., LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2013 |
| 28434 | Texas International Resource LLC | Allen, TX 75013 | Oil Operator | May 2026 |
| 28435 | Texas Investments | San Angelo, TX 76904 | Oil & Gas Operator | Mar 2008 |
| 28436 | Texas Keystone Inc | Oakmont, PA 15139-2072 | Oil & Gas Operator | Nov 2017 |
| 28437 | Texas Land & Petro Co., LLC | Carrollton, TX 75010 | Oil & Gas Operator | May 2026 |
| 28438 | Texas Land & Trading Co, Inc. | Austin, TX 78734 | Oil & Gas Operator | Mar 2008 |
| 28439 | Texas Lone Star Petroleum Corp. | Corpus Christ, TX 78401 | Oil & Gas Operator | Dec 2013 |
| 28440 | Texas M.O.R., Inc. | Corsicana, TX 75109 | Oil Operator | Sep 2013 |
| 28441 | Texas Meridian Operating Co. Inc | Houston, TX 77079 | Oil & Gas Operator | Oct 1993 |
| 28442 | Texas Meridian Res. Expl., Inc. | Houston, TX 77079 | Oil & Gas Operator | Jun 1998 |
| 28443 | Texas Mineral Group | Midland, TX 79705 | Oil & Gas Operator | Aug 2013 |
| 28444 | Texas Moran Exploration Company | Houston, TX 77098 | Oil & Gas Operator | Jun 2023 |
| 28445 | Texas Offshore Operations, LLC | Farmers BRNCH, TX 75234 | Oil & Gas Operator | May 2026 |
| 28446 | Texas Oil & Gas | Denver, CO 80264 | Oil & Gas Operator | Oct 1981 |
| 28447 | Texas Oil & Gas Corporation | Dallas, TX 75201 | Oil & Gas Operator | Feb 2001 |
| 28448 | Texas Oil And Gas Operating, LLC | Friendswood, TX 77546 | Oil & Gas Operator | May 2026 |
| 28449 | Texas Oil Company, The | Houston, TX 77018 | Oil & Gas Operator | Aug 2006 |
| 28450 | Texas Oil Resources Oper, LLC | Houston, TX 77024 | Oil Operator | May 2026 |
| 28451 | Texas Onshore Energy, Inc. | Austin, TX 78704 | Oil & Gas Operator | May 2026 |
| 28452 | Texas Operating & Consult., LLC | Abilene, TX 79608 | Oil & Gas Operator | Feb 2018 |
| 28453 | Texas Operating Partners LLC | Houston, TX 77056 | Oil & Gas Operator | May 2026 |
| 28454 | Texas Pacific Oil Co. | | Oil & Gas Operator | Dec 1980 |
| 28455 | Texas Petroleum Investment Company | Houston, TX 77057 | Oil & Gas Operator | May 2026 |
| 28456 | Texas Pharchem Inc. | Abilene, TX 79601 | Oil & Gas Operator | Apr 2019 |
| 28457 | Texas Presco, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Nov 2025 |
| 28458 | Texas Rayco Inc. | Daingerfield, TX 75638 | Oil & Gas Operator | May 2026 |
| 28459 | Texas Reexploration Operating LC | Fredericksbrg, TX 78624 | Oil & Gas Operator | May 2026 |
| 28460 | Texas Refining, Inc. | Houston, TX 77057 | Oil & Gas Operator | Aug 2003 |
| 28461 | Texas Royalty Corp. | Austin, TX 78746 | Oil & Gas Operator | May 2026 |
| 28462 | Texas Sands Resources, LLC | Abilene, TX 79603 | Oil Operator | May 2026 |
| 28463 | Texas Secondary Oil Corporation | Devine, TX 78016 | Oil & Gas Operator | May 2026 |
| 28464 | Texas Shallow Oil & Gas, LLC | Graham, TX 76450 | Oil & Gas Operator | May 2026 |
| 28465 | Texas South Operating Co, Inc. | Houston, TX 77027 | Oil Operator | May 2026 |
| 28466 | Texas Southern Petroleum Corp. | Corpus Christ, TX 78410 | Oil & Gas Operator | May 2026 |
| 28467 | Texas Standard Oil Operating Co. | Midland, TX 79705 | Oil & Gas Operator | Oct 2019 |
| 28468 | Texas Standard Operating NM LLC | Midland, TX 79705 | Oil & Gas Operator | Mar 2026 |
| 28469 | Texas State Oil Co. | Irving, TX 75062 | Oil & Gas Operator | Mar 2017 |
| 28470 | Texas Sunset Energy And Ent Inc | Victoria, TX 77904 | Oil Operator | Aug 2003 |
| 28471 | Texas T Oil Co. | | Oil & Gas Operator | Apr 1990 |
| 28472 | Texas Tea Of Colorado LLC Dba Texas Tea LLC | | Oil & Gas Operator | Jun 2021 |
| 28473 | Texas Tea Oil Company | Jacksboro, TX 76458 | Oil & Gas Operator | Feb 2011 |
| 28474 | Texas Trade International Inc. | Andrews, TX 79714 | Oil Operator | May 2026 |
| 28475 | Texas United Geoproduction, Inc. | Abilene, TX 79606 | Oil & Gas Operator | May 2026 |
| 28476 | Texas United Petroleum Inc | Dallas, TX 75243 | Oil & Gas Operator | Jun 2003 |
| 28477 | Texas Utilities Fuel Co. | Dallas, TX 75201 | Oil & Gas Operator | Mar 2018 |
| 28478 | Texas Utilities Mining Co. | Dallas, TX 75201 | Oil & Gas Operator | May 1995 |
| 28479 | Texas Valley Oil & Gas, LLC | Hidalgo, TX 78557 | Oil Operator | May 2026 |
| 28480 | Texas Vanguard Oil Company | Austin, TX 78720 | Oil & Gas Operator | Jan 2014 |
| 28481 | Texas Western Energy Corporation | Portland, TX 78374 | Oil & Gas Operator | Nov 2002 |
| 28482 | Texas Western Oil Company | Sioux Falls, SD 57109 | Oil & Gas Operator | Sep 2013 |
| 28483 | Texas, Les & Co. | Brenham, TX 77833 | Oil & Gas Operator | May 2026 |
| 28484 | Texas, Les C., LTD. | Houston, TX 77095 | Oil & Gas Operator | Dec 2006 |
| 28485 | Texas-Australia Power Inc. | Wichita Falls, TX 76302 | Oil & Gas Operator | Dec 2011 |
| 28486 | Texas-Ohio Producing Company | Spring, TX 77383 | Oil & Gas Operator | Jul 1995 |
| 28487 | Texasgulf Inc. | Newgulf, TX 77462 | Oil & Gas Operator | Jul 1994 |
| 28488 | Texcal Energy (GP) LLC | Denver, CO 80202 | Oil & Gas Operator | Mar 2016 |
| 28489 | Texcal Oil Co | Cuero, TX 77954 | Oil & Gas Operator | Feb 2006 |
| 28490 | Texcal Oil Inc. | Vidor, TX 77662 | Oil & Gas Operator | Jun 1994 |
| 28491 | Texcal Resources, Inc. | Plano, TX 75094 | Oil & Gas Operator | Apr 1994 |
| 28492 | Texcel Exploration, Inc. | Colorado SPGS, CO 80960 | Oil & Gas Operator | May 2026 |
| 28493 | Texcrude Services LLC | Iowa Park, TX 76367 | Oil Operator | May 2026 |
| 28494 | Texdon Operating | Breckenridge, TX 76424 | Oil & Gas Operator | Jun 2005 |
| 28495 | Texeast Operating Co., Inc. | Farmers BRNCH, TX 75234 | Oil Operator | May 2026 |
| 28496 | Texegy Operating Company LLC | Corpus Christ, TX 78401 | Oil & Gas Operator | Dec 2024 |
| 28497 | Texex Petroleum Corporation | | Oil & Gas Operator | Dec 2024 |
| 28498 | Texian Energy Corporation | Amarillo, TX 79120 | Oil & Gas Operator | Apr 1997 |
| 28499 | Texian Operating Company, LLC | Irving, TX 75063 | Oil & Gas Operator | May 2026 |
| 28500 | Texical, Inc. | Katy, TX 77491 | Oil & Gas Operator | May 2026 |