401 | Texas Vanguard Oil Company | Austin, TX 78720 | Oil & Gas Operator | Jan 2014 |
402 | Texican Crude & Hydrocarbons LLC | Houston, TX 77002 | Oil Operator | Sep 2023 |
403 | Tipperary Oil & Gas Corp | Denver, CO 80202 | Oil & Gas Operator | May 2014 |
404 | Tiza Operating Company | Austin, TX 78716 | Oil & Gas Operator | Jan 2000 |
405 | Torch Energy Services, Inc. | Houston, TX 77010 | Oil & Gas Operator | Sep 2011 |
406 | Torch Operating Company | Houston, TX 77010 | Oil & Gas Operator | Mar 2015 |
407 | Tri-C Resources, Inc. | Houston, TX 77024 | Oil & Gas Operator | Aug 2009 |
408 | Tri-C Resources, LLC | Houston, TX 77024 | Oil & Gas Operator | Apr 2024 |
409 | Trinity Resources, Inc. | Houston, TX 77277 | Oil & Gas Operator | May 2020 |
410 | Trivista Operating LLC | Giddings, TX 78942 | Oil & Gas Operator | Apr 2024 |
411 | Trump Energy | Austin, TX 78734 | Oil & Gas Operator | Mar 2008 |
412 | Tsar Energy, LLC | Dallas, TX 75205 | Oil & Gas Operator | Apr 2024 |
413 | TT Operating, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Apr 2024 |
414 | Two Bit Operating Company LLC | Fort Worth, TX 76110 | Oil & Gas Operator | Apr 2024 |
415 | Txco Resources Inc. | San Antonio, TX 78280 | Oil & Gas Operator | Apr 2024 |
416 | U. S. Operating, Inc. | Dallas, TX 75252 | Oil & Gas Operator | Apr 2024 |
417 | U.S.A. Plugging Company | Pearsall, TX 78061 | Oil & Gas Operator | Apr 2024 |
418 | Union Oil Co Of California | Midland, TX 79706 | Oil & Gas Operator | Jan 2022 |
419 | Union Pacific Austin Chalk Co. | Fort Worth, TX 76101 | Oil & Gas Operator | Jan 2001 |
420 | Union Pacific Resources Co. | Fort Worth, TX 76101 | Oil & Gas Operator | Sep 2002 |
421 | Unit Petroleum Company | Tulsa, OK 74170 | Oil & Gas Operator | Apr 2024 |
422 | United Energy Operating, LLC | Edmond, OK 73083 | Oil & Gas Operator | Apr 2024 |
423 | United Oil & Minerals, Inc. | Austin, TX 78746 | Oil & Gas Operator | Jan 2001 |
424 | United Resources LP | Austin, TX 78746 | Oil & Gas Operator | Oct 2011 |
425 | Upland Resources LLC | Canadian, TX 79014 | Oil & Gas Operator | Apr 2024 |
426 | Usfg Oil & Gas, Inc. | Dallas, TX 75231 | Oil & Gas Operator | Dec 2005 |
427 | Valence Operating Company | Kingwood, TX 77339 | Oil & Gas Operator | Apr 2024 |
428 | Verdun Oil & Gas LLC | Houston, TX 77024 | Oil & Gas Operator | Apr 2024 |
429 | Verona Energy, Inc. | Newellton, LA 71357 | Oil & Gas Operator | Nov 2023 |
430 | Vintage Petroleum, Inc. | Houston, TX 77046 | Oil & Gas Operator | Dec 2023 |
431 | Vomela Resources Inc. | Flatonia, TX 78941 | Oil & Gas Operator | Apr 2024 |
432 | Warrior Resources Inc. | Mexia, TX 76667 | Oil & Gas Operator | Apr 2024 |
433 | Waters Eng. & Operating, Inc. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | Sep 2013 |
434 | WCS Oil & Gas Corporation | Dallas, TX 75209 | Oil & Gas Operator | Aug 2021 |
435 | Weber Energy Corporation | Dallas, TX 75219 | Oil & Gas Operator | Feb 2017 |
436 | Westpark Petroleum, Inc. | Austin, TX 78755 | Oil & Gas Operator | Apr 2024 |
437 | Westport Oil & Gas Company LP | The Woodlands, TX 77380 | Oil & Gas Operator | Feb 2007 |
438 | Westridge Oil & Gas Properties | Mineral Wells, TX 76068 | Oil & Gas Operator | Apr 2024 |
439 | White Rock Oil & Gas, LLC | Plano, TX 75024 | Oil & Gas Operator | Apr 2024 |
440 | Whiting Oil And Gas Corporation | Houston, TX 77002 | Oil & Gas Operator | Apr 2024 |
441 | Whiting Petroleum Corporation | Denver, CO 80290 | Oil & Gas Operator | Feb 2024 |
442 | Wildfire Energy Operating LLC | Houston, TX 77224 | Oil & Gas Operator | Apr 2024 |
443 | Wildhorse Resources MNGT Co, LLC | Oklahoma City, OK 73154 | Oil & Gas Operator | May 2019 |
444 | Williams, Clayton Energy, Inc. | Houston, TX 77070 | Oil & Gas Operator | Apr 2024 |
445 | Williams, Clayton Energy, L.L.C | Midland, TX 79705 | Oil & Gas Operator | May 1993 |
446 | Williams, Clayton W., Jr., Inc. | Midland, TX 79705 | Oil & Gas Operator | Mar 2008 |
447 | Williams-Cody, Inc. | Houston, TX 77060 | Oil & Gas Operator | May 1994 |
448 | XTO Energy Inc. | Spring, TX 77389 | Oil & Gas Operator | Apr 2024 |
449 | Yarborough, W. B. | Midland, TX 79701 | Oil & Gas Operator | Nov 1995 |
450 | Young, John H., Inc. | Houston, TX 77027 | Oil & Gas Operator | Apr 2024 |
451 | Zarvona Energy LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2024 |
452 | Zaza Energy, LLC | Houston, TX 77010 | Oil & Gas Operator | Apr 2024 |
453 | Zinn Petroleum Co. | Houston, TX 77024 | Oil & Gas Operator | Nov 2021 |