401 | Stearns Oil Company LLC | Willison, ND 58801 | Oil & Gas Operator | Feb 2024 |
402 | Stekoll Oil & Gas, LTD. | | Oil Operator | Jun 1963 |
403 | Stephens & Johnson Operating Co. | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2024 |
404 | Stephens Energy Company LLC | | Oil & Gas Operator | Jun 2012 |
405 | Stephens Williston, LLC Dba Seg Williston, LLC | | Oil & Gas Operator | Feb 2024 |
406 | Stone Energy Corporation | Denver, CO 80202-2828 | Oil & Gas Operator | Oct 2014 |
407 | Summit Resources, Inc. | Houston, TX 77077 | Oil & Gas Operator | Sep 2016 |
408 | Sun Exploration-Production Co. | | Oil & Gas Operator | Jan 1990 |
409 | Sundance Energy Inc | Denver, CO 80202 | Oil & Gas Operator | Jul 2014 |
410 | Superior Oil Co. | Denver, CO 80217-5444 | Oil & Gas Operator | Feb 2001 |
411 | T-Boc Inc. | | Oil & Gas Operator | Apr 2016 |
412 | Taqa USA, Inc. | Centennial, CO 80111 | Oil & Gas Operator | Jul 2020 |
413 | Tenneco Oil Company | Oklahoma City, OK 73125 | Oil & Gas Operator | Nov 2023 |
414 | Terra Resources, Inc. | Casper, WY 82601 | Oil & Gas Operator | Jun 1990 |
415 | Texaco Inc | Kingfisher, OK 73750 | Oil & Gas Operator | Dec 2017 |
416 | Texakota, Inc. | Houston, TX 77098 | Oil & Gas Operator | Mar 2021 |
417 | Texas Crude Energy, Inc. | Houston, TX 77256 | Oil & Gas Operator | Oct 2012 |
418 | Texas Gas Exploration Corp. | | Oil & Gas Operator | Nov 1986 |
419 | The Houston Exploration Company | Houston, TX 77002 | Oil & Gas Operator | Apr 2017 |
420 | Thunderbird Resources LP | | Oil & Gas Operator | Apr 2019 |
421 | Tiger Oil Company | Dallas, TX 75221 | Oil & Gas Operator | May 2007 |
422 | Timberline Production Company LLC | Casper, WY 82601 | Oil & Gas Operator | Oct 2020 |
423 | Titan Energy, LLC | Smackover, AR 71762 | Oil & Gas Operator | Apr 2024 |
424 | Tom Brown Inc | Denver, CO 80202 | Oil & Gas Operator | Dec 2004 |
425 | Top Operating Company | | Oil & Gas Operator | Oct 2022 |
426 | Tracker Resource Development II, LLC | | Oil & Gas Operator | Feb 2011 |
427 | Transtexas Gas Corporation | Houston, TX 77265 | Oil & Gas Operator | Aug 2005 |
428 | Traverse Oil Co. | | Oil & Gas Operator | Nov 1983 |
429 | Trek Resources, Inc. | Dallas, TX 75207 | Oil & Gas Operator | Apr 2024 |
430 | Tri-C Resources, Inc. | Houston, TX 77024 | Oil & Gas Operator | Aug 2009 |
431 | Tri-C Resources, LLC | Houston, TX 77024 | Oil & Gas Operator | Apr 2024 |
432 | Triangle USA Petroleum Corporation | Denver, CO 80202 | Oil & Gas Operator | Jul 2021 |
433 | Trio Operating Company, Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2006 |
434 | True Oil Company | Casper, WY 82602 | Oil & Gas Operator | Aug 2003 |
435 | True Oil LLC | Casper, WY 82602 | Oil & Gas Operator | Feb 2024 |
436 | Turtle Mountain Gas & Oil, Inc. | | Oil & Gas Operator | Oct 2006 |
437 | TXP Operating Company | | Oil & Gas Operator | Jul 1992 |
438 | Tyrex Oil Company | Casper, WY 82602 | Oil & Gas Operator | May 1997 |
439 | Universal Resources Corp. | Salt Lake Cty, UT 84145 | Oil & Gas Operator | Jan 2000 |
440 | Upton Resources U.S.A. Inc. | | Oil & Gas Operator | Oct 2013 |
441 | Valkyrie Operating LLC | Denver, CO 80202 | Oil & Gas Operator | Feb 2024 |
442 | Vanderbilt Resources Corp. | Midland, TX 79701 | Oil & Gas Operator | Nov 1991 |
443 | Vanguard Operating, LLC | Houston, TX 77057 | Oil & Gas Operator | Feb 2021 |
444 | Vast Operations, LLC | | Oil Operator | Mar 2024 |
445 | Vaughn Petroleum, Inc. | Dallas, TX 75219 | Oil & Gas Operator | May 2004 |
446 | Versa Operating LLC | | Oil & Gas Operator | May 2022 |
447 | Vickers & VIckers | | Oil Operator | Jul 2018 |
448 | W. H. Hunt Trust Estate | | Oil & Gas Operator | Mar 1997 |
449 | Wacker Oil Inc | Houston, TX 77002 | Oil & Gas Operator | Aug 1996 |
450 | Wapiti Operating, LLC | Houston, TX 77043 | Oil & Gas Operator | Apr 2024 |
451 | Ward-Williston Company | | Oil & Gas Operator | Apr 2014 |
452 | Ward-Williston Drilling Co. | | Oil & Gas Operator | Dec 1994 |
453 | Wesco Operating, Inc. | Casper, WY 82602 | Oil & Gas Operator | Feb 2024 |
454 | Wessely Energy Company | Dallas, TX 75206 | Oil & Gas Operator | May 2001 |
455 | Westport Oil & Gas Company LP | The Woodlands, TX 77380 | Oil & Gas Operator | Feb 2007 |
456 | White Butte Oil Operations, LLC | | Oil & Gas Operator | Feb 2024 |
457 | White Rock Oil & Gas, LLC | Plano, TX 75024 | Oil & Gas Operator | Apr 2024 |
458 | Whiting Oil And Gas Corporation | Houston, TX 77002 | Oil & Gas Operator | Apr 2024 |
459 | Whiting Petroleum Corporation | Denver, CO 80290 | Oil & Gas Operator | Feb 2024 |
460 | William Herbert Hunt | | Oil & Gas Operator | Mar 1986 |
461 | Williston Hunter ND, LLC | | Oil & Gas Operator | Mar 2014 |
462 | Williston Industrial Supply Corporation | Williston, ND 58801 | Oil & Gas Operator | Mar 2012 |
463 | Windridge Operating LLC | | Oil & Gas Operator | Feb 2024 |
464 | Windsor Dakota, LLC | | Oil & Gas Operator | Nov 2023 |
465 | Windsor Energy Group LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Aug 2021 |
466 | Wiser Oil Co | Denver, CO 80202 | Oil & Gas Operator | Dec 2019 |
467 | WPX Energy Williston, LLC | | Oil & Gas Operator | Feb 2024 |
468 | Wyoming Resources Corporation | Rapid City, SD 57702 | Oil & Gas Operator | Oct 2018 |
469 | XTO Energy Inc. | Spring, TX 77389 | Oil & Gas Operator | Apr 2024 |
470 | Zargon Oil (ND) Inc. | | Oil & Gas Operator | Feb 2024 |
471 | Zavanna, LLC | | Oil & Gas Operator | Feb 2024 |
472 | Zenergy Inc | Tulsa, OK 74136 | Oil & Gas Operator | Jan 2024 |
473 | Zenergy Operating Company, LLC | Tulsa, OK 74136 | Oil & Gas Operator | Dec 2016 |
474 | Zinke & Trumbo, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2007 |