401 | Tellus Operating Group, LLC | | Oil & Gas Operator | Jan 2024 |
402 | Tenneco Oil Company | Oklahoma City, OK 73125 | Oil & Gas Operator | Feb 2024 |
403 | Terra Resources, Inc. | Casper, WY 82601 | Oil & Gas Operator | Jun 1990 |
404 | Terrier Oil Company | | Oil & Gas Operator | Feb 2015 |
405 | Tesoro E&P Company, L.P. | San Antonio, TX 78216 | Oil & Gas Operator | Jan 2000 |
406 | Tesoro Petroleum Corporation | | Oil & Gas Operator | May 1982 |
407 | Tex/Con Oil & Gas Company | Houston, TX 77074 | Oil & Gas Operator | Feb 2001 |
408 | Texaco E & P Inc | Houston, TX 77099 | Oil & Gas Operator | May 2024 |
409 | Texaco Inc | Kingfisher, OK 73750 | Oil & Gas Operator | Dec 2017 |
410 | Texaco Producing Inc. | Rock Springs, WY 82901 | Oil & Gas Operator | Dec 2000 |
411 | Texas Meridian Res. Expl., Inc. | Houston, TX 77079 | Oil & Gas Operator | Jun 1998 |
412 | Texas Petroleum Investment Company | Houston, TX 77057 | Oil & Gas Operator | May 2024 |
413 | The Dow Chemical Company | | Oil & Gas Operator | Dec 1997 |
414 | The Houston Exploration Company | Houston, TX 77002 | Oil & Gas Operator | Apr 2017 |
415 | The Meridian Res. & Exp. LLC | | Oil & Gas Operator | Sep 2010 |
416 | The Meridian Resource & Exp Co | | Oil & Gas Operator | Dec 2000 |
417 | The WM G Helis Company, L.L.C. | | Oil & Gas Operator | Nov 2003 |
418 | Time Energy, L.L.C. | | Oil & Gas Operator | Nov 2020 |
419 | Tipco | Shreveport, LA 71104-3047 | Oil & Gas Operator | May 1988 |
420 | Toce Oil Company | | Oil & Gas Operator | Dec 2014 |
421 | Torch Operating Company | Houston, TX 77010 | Oil & Gas Operator | Mar 2015 |
422 | Torch Opr Co-Stone Petr Corp | | Oil & Gas Operator | Jul 1997 |
423 | Transcontinental Gas P/L Corp. | | Oil & Gas Operator | Dec 2009 |
424 | Tricentrol Resources Inc | Englewood, CO 80111 | Oil & Gas Operator | Jun 1984 |
425 | Trigon Exploration, Inc. | | Oil & Gas Operator | Jan 1999 |
426 | TXP Operating Company | | Oil & Gas Operator | Jul 1992 |
427 | Ultramar Oil & Gas LTD | Houston, TX 77060 | Oil & Gas Operator | Jul 1995 |
428 | Union Exploration Partners, LTD. | | Oil & Gas Operator | Aug 1990 |
429 | Union Oil Co Of California | Midland, TX 79706 | Oil & Gas Operator | Jan 2022 |
430 | Union Pacific Resources Co. | Fort Worth, TX 76101 | Oil & Gas Operator | Sep 2002 |
431 | Union Texas Petroleum Corp. | Houston, TX 77252-2120 | Oil & Gas Operator | Dec 2014 |
432 | Unit Petroleum Company | Tulsa, OK 74170 | Oil & Gas Operator | May 2024 |
433 | United Gas Pipe Line Co. | | Oil Operator | Aug 1993 |
434 | United Operators, Inc. | | Oil Operator | Sep 1999 |
435 | Unocal Exploration Corporation | Houston, TX 77001 | Oil & Gas Operator | May 1992 |
436 | Us Oil & Gas Inc | Marietta, OH 45750 | Oil & Gas Operator | Feb 2024 |
437 | Vanguard Environmental, LLC | | Oil Operator | Jan 2024 |
438 | Venvirotek Of Louisiana, Inc. | | Oil Operator | Apr 2002 |
439 | Vernon E. Faulconer, Inc. | Tyler, TX 75711 | Oil & Gas Operator | Dec 2023 |
440 | Vintage Petroleum, Inc. | Houston, TX 77046 | Oil & Gas Operator | Jan 2024 |
441 | Virgin Offshore U.S.A., Inc. | | Oil & Gas Operator | Sep 2012 |
442 | W & T Offshore, Inc. | Houston, TX 77057 | Oil & Gas Operator | May 2024 |
443 | W. W. F. Oil Corporation | | Oil & Gas Operator | Dec 1999 |
444 | Wagner Oil Company | Fort Worth, TX 76102 | Oil & Gas Operator | May 2024 |
445 | Wainoco Oil & Gas Company | Houston, TX 77024 | Oil & Gas Operator | Dec 2005 |
446 | Wallace Operating Company | | Oil & Gas Operator | Sep 1986 |
447 | Walter Oil & Gas Corporation | Houston, TX 77002 | Oil & Gas Operator | May 2024 |
448 | Wayman W. Buchanan | | Oil & Gas Operator | Feb 1986 |
449 | Weaver Exploration Company | | Oil & Gas Operator | Jun 1991 |
450 | Weeks Exploration Company | Houston, TX 77063 | Oil & Gas Operator | Aug 1995 |
451 | Wes-Tex Drilling Company | Abilene, TX 79604 | Oil & Gas Operator | Jan 2000 |
452 | White Oak Operating Company LLC | Houston, TX 77077 | Oil & Gas Operator | May 2024 |
453 | Whiting Oil And Gas Corporation | Houston, TX 77002 | Oil & Gas Operator | May 2024 |
454 | Whiting Petroleum Corporation | Denver, CO 80290 | Oil & Gas Operator | Feb 2024 |
455 | Whitney Oil & Gas, LLC | | Oil & Gas Operator | Dec 2023 |
456 | WHK, Inc. | | Oil & Gas Operator | Oct 1993 |
457 | Williams Exploration Company | | Oil & Gas Operator | Dec 1986 |
458 | Windfohr Oil Company | | Oil & Gas Operator | May 1980 |
459 | Wintershall Corporation | | Oil & Gas Operator | Oct 1989 |
460 | Wintershall Oil & Gas Corp | Houston, TX 77027 | Oil & Gas Operator | Jul 1989 |
461 | Woods & Deas-Dobie | | Oil & Gas Operator | Aug 1983 |
462 | WRT Energy Corporation | Oklahoma City, OK 73118 | Oil & Gas Operator | May 1998 |
463 | Xplor Energy Operating Co. | Houston, TX 77079 | Oil & Gas Operator | Jan 2012 |
464 | XTO Energy Inc. | Spring, TX 77389 | Oil & Gas Operator | May 2024 |
465 | Zadeck Energy Group Inc | | Oil & Gas Operator | Jun 2013 |
466 | Zeit Exploration Co., Inc. | | Oil & Gas Operator | May 1994 |
467 | Zenergy Inc | Tulsa, OK 74136 | Oil & Gas Operator | Feb 2024 |
468 | Zinke & Trumbo, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2007 |