601 | High Plains Gas LLC | Gillette, WY 82717 | Gas Operator | Aug 2014 |
602 | High Summit Oil & Gas Inc | | Oil & Gas Operator | Sep 1987 |
603 | Highland Exploration | | Oil Operator | Sep 1979 |
604 | Hilcorp Energy Company | Houston, TX 77208 | Oil & Gas Operator | Apr 2024 |
605 | Hilliard Oil & Gas Inc | New Orleans, LA 70112 | Oil & Gas Operator | May 2001 |
606 | HMX Investments Inc | Katy, TX 77494 | Oil & Gas Operator | Dec 2023 |
607 | HNG Oil Company | | Oil & Gas Operator | Jun 1987 |
608 | Hodge T F | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2007 |
609 | Hoff Elmer & Mildred | | Oil & Gas Operator | Jan 1991 |
610 | Holden Harold B | Billings, MT 59103 | Oil Operator | Jun 1996 |
611 | Holly Energy Inc | | Oil Operator | Apr 1983 |
612 | Holwell Drilling Company | | Oil Operator | Sep 1992 |
613 | Home Petroleum Corp | Victoria, TX 77902 | Oil & Gas Operator | Apr 2024 |
614 | Hondo Oil & Gas | Houston, TX 77042 | Oil & Gas Operator | Oct 1995 |
615 | Hot Springs Resources LTD | Casper, WY 82601 | Oil Operator | Dec 2014 |
616 | Houston Oil And Minerals | | Oil & Gas Operator | Oct 1993 |
617 | Howell Petroleum Corporation | Houston, TX 77251 | Oil & Gas Operator | Oct 2015 |
618 | HR Energy LLC | Shelby, MT 59474 | Oil & Gas Operator | Jan 2024 |
619 | HRM Resources II, LLC | Denver, CO 80202 | Oil & Gas Operator | Jan 2022 |
620 | HRM Resources III LLC | Denver, CO 80202 | Oil & Gas Operator | Jun 2022 |
621 | HRM Resources LLC | Denver, CO 80202 | Oil & Gas Operator | Aug 2015 |
622 | Hrubetz Oil Co. | Dallas, TX 75225 | Oil Operator | Sep 1986 |
623 | HS Resources, Inc. | Denver, CO 80202 | Oil & Gas Operator | Dec 2005 |
624 | Huber J M Corp | Edison, NJ 08837 | Oil & Gas Operator | Apr 2024 |
625 | Hudson Group LLC | Casper, WY 82601 | Oil & Gas Operator | Feb 2024 |
626 | Hughes Oil Company Inc | Odessa, TX 79765 | Oil & Gas Operator | Feb 2004 |
627 | Hugoton Energy Corporation | Oklahoma City, OK 73113 | Oil & Gas Operator | Dec 2019 |
628 | Hunt Oil Company | Dallas, TX 75201 | Oil & Gas Operator | Apr 2024 |
629 | Hunt Petroleum (Aec), Inc. | Dallas, TX 75201 | Oil & Gas Operator | Nov 2008 |
630 | Huntington Energy LLC | Oklahoma City, OK 73116 | Oil & Gas Operator | Apr 2024 |
631 | Hurley Oil Company | | Oil Operator | Dec 1988 |
632 | Husky Oil Company | Cody, WY 82414 | Oil & Gas Operator | Dec 1984 |
633 | Hyco Oil Inc | Newcastle, WY 82701 | Oil & Gas Operator | Dec 2006 |
634 | Hydrocarbon Management, Inc. | San Antonio, TX 78216 | Oil & Gas Operator | Dec 1996 |
635 | Hyland Oil Corporation | | Oil & Gas Operator | Apr 1990 |
636 | Hyperion Oil & Gas LLC | Dallas, TX 75251 | Oil & Gas Operator | Apr 2024 |
637 | I C Gas Amcana Inc | Tulsa, OK 74103-3713 | Oil & Gas Operator | Apr 1996 |
638 | Ibex Resources Operating LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Jun 2007 |
639 | Iks Operating | Upton, WY 82703 | Oil & Gas Operator | Jul 2013 |
640 | Impact Energy Operating LLC | Oklahoma City, OK 73172 | Oil & Gas Operator | Feb 2024 |
641 | Impact Exploration & Production LLC | Greenwood VIllage, CO 80111 | Oil & Gas Operator | Feb 2024 |
642 | Incline Reserves Inc | Topeka, KS BAD ADDR | Oil & Gas Operator | Mar 1994 |
643 | Incremental Oil & Gas USA Holdings Inc | Denver, CO 80202 | Oil & Gas Operator | Apr 2021 |
644 | Independent Production Company | Greenwood VIllage, CO 80121 | Oil & Gas Operator | May 2003 |
645 | Indian Creek Resources Inc | Loveland, CO 80538 | Oil & Gas Operator | Feb 2024 |
646 | Industrial Gas Services Inc | Wheat Ridge, CO 80033 | Oil & Gas Operator | Feb 2023 |
647 | Inexco Oil Company | Houston, TX 77210 | Oil & Gas Operator | Mar 2013 |
648 | Infield Discovery LLC | Madison, MS 39110 | Oil & Gas Operator | Jan 2024 |
649 | Infinity Oil & Gas Of Wyoming | Rock Springs, WY 82902 | Oil & Gas Operator | Feb 2009 |
650 | Inland Production Company | Vernal, UT 84079 | Oil & Gas Operator | Dec 2004 |
651 | Integrated Energy Inc | Houston, TX 77002 | Oil & Gas Operator | Aug 2003 |
652 | Integrated Petroleum Corporation | Denver, CO 80202 | Oil Operator | Jan 2010 |
653 | Integrity Oil & Gas | Golden, CO 80401 | Oil & Gas Operator | May 2011 |
654 | Intercoast Oil And Gas Company | Tulsa, OK 74136 | Oil & Gas Operator | Jun 1997 |
655 | Intercontinental Petroleum | | Oil Operator | Oct 2012 |
656 | Interline Resources Corp | Casper, WY 82601 | Oil & Gas Operator | Oct 2009 |
657 | Internorth Inc | Tulsa, OK 74136 | Oil & Gas Operator | Apr 2014 |
658 | Intoil, Inc. | Englewood, CO 80155 | Oil & Gas Operator | Dec 2002 |
659 | Intrepid Oil & Gas LLC | Denver, CO 80202 | Oil & Gas Operator | Apr 2021 |
660 | Intrepid Production Corporation | Denver, CO 80202 | Oil & Gas Operator | Feb 2024 |
661 | Investment Equipment LLC | FT Morgan, CO 80701 | Oil & Gas Operator | Jan 2024 |
662 | Ip Petroleum Company, Inc. | Houston, TX 77210 | Oil & Gas Operator | Mar 2008 |
663 | Iron Creek Properties Inc | Casper, WY 82604 | Oil & Gas Operator | Feb 2024 |
664 | Itr Petroleum Inc | Houston, TX 77002 | Oil & Gas Operator | Apr 1998 |
665 | J & J Production LLC | Worland, WY 82401 | Oil Operator | Dec 2023 |
666 | J-Bird Well Service Incorporated | Gillette, WY 82717 | Oil Operator | Feb 2024 |
667 | J-W Operating Company | Christoval, TX 76935 | Oil & Gas Operator | Apr 2024 |
668 | Jade Resources Inc | Englewood, CO 80112 | Oil Operator | Jul 1998 |
669 | Jay Management Company LLC | Houston, TX 77057 | Oil & Gas Operator | Apr 2024 |
670 | Jayne Morton Living Trust | Troup, TX 75789 | Oil Operator | Jul 2023 |
671 | Jed Oil USA Inc | | Oil & Gas Operator | Dec 2008 |
672 | Jellco LLC | Thermopolis, WY 82443 | Oil Operator | Feb 2024 |
673 | Jenex Petroleum Corporation | The Woodlands, TX 77380 | Oil & Gas Operator | Apr 2024 |
674 | Jetta Operating Company Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2024 |
675 | Jims Water Service Inc | Gillette, WY 82717 | Oil & Gas Operator | Oct 2016 |
676 | JM Cox Resources LP | Midland, TX 79702 | Oil & Gas Operator | Apr 2019 |
677 | JN Exploration & Production | Billings, MT 59103-0159 | Oil & Gas Operator | Apr 2001 |
678 | Joemar Wyoming Operating LLC | | Oil & Gas Operator | Feb 2024 |
679 | Jonah Energy LLC | Pinedale, WY 82941 | Oil & Gas Operator | Feb 2024 |
680 | JP Oil Wyoming LLC | Lafayette, LA 70505 | Oil & Gas Operator | Jan 2024 |
681 | JT Operating LLC | Douglas, WY 82633 | Oil & Gas Operator | Feb 2024 |
682 | Julander Energy Company | Denver, CO 80614 | Oil Operator | Apr 2016 |
683 | Julius Roy G | Wichita, KS 67206 | Oil & Gas Operator | Feb 2024 |
684 | Juniper Petroleum Corporation | | Oil & Gas Operator | Aug 1983 |
685 | Justice Oil & Gas LLC | Gillette, WY 82716 | Oil & Gas Operator | Feb 2024 |
686 | Jva Operating Company | Midland, TX 79710 | Oil & Gas Operator | Oct 2021 |
687 | K & W Oil Company | MT Carmel, IL 62830 | Oil & Gas Operator | May 2013 |
688 | K N Energy Inc | Lakewood, CO 80228 | Oil & Gas Operator | Nov 2000 |
689 | Kachina Exploration Inc | Cheyenne, WY 82003 | Oil & Gas Operator | Jul 2000 |
690 | Kaiser Energy Inc | Denver, CO 80202 | Oil & Gas Operator | Dec 1990 |
691 | Kaiser-Francis Oil Company | Tulsa, OK 74121 | Oil & Gas Operator | Apr 2024 |
692 | Kamco Limited | Salt Lake City, UT 84105 | Oil Operator | Sep 2016 |
693 | Kaneb Oil & Gas | | Oil & Gas Operator | Oct 1987 |
694 | Kant Walter F | Lance Creek, WY 82222 | Oil & Gas Operator | Dec 2002 |
695 | Kara Enterprises Inc | Upton, WY 82730 | Oil Operator | Jul 2013 |
696 | Karlton Terry Oil Company | | Oil Operator | Jan 1991 |
697 | Kase Energy LLC | Roseville, MN 55113 | Oil Operator | Aug 2006 |
698 | Katherman Vance E | Casper, WY 82601 | Oil Operator | Dec 2004 |
699 | Kauffman K P Company Inc | Denver, CO 80202 | Oil & Gas Operator | Mar 1996 |
700 | KC Resources Inc | Snowmass VLG., CO 81615 | Oil & Gas Operator | Dec 2023 |