801 | M W Petroleum Company | Houston, TX 77056 | Oil & Gas Operator | Dec 1995 |
802 | M-3 Industries | Casper, WY 82602 | Oil & Gas Operator | Jan 2024 |
803 | M2S Oil LLC | | Oil Operator | Jan 2024 |
804 | Mack Energy Corporation | Artesia, NM 88211 | Oil & Gas Operator | Jan 2024 |
805 | Macum Energy Inc | Billings, MT 59104 | Oil & Gas Operator | Aug 2021 |
806 | Maguire Oil Company | Dallas, TX 75270 | Oil & Gas Operator | Mar 2015 |
807 | Maha Energy Us Inc | | Oil Operator | Nov 2023 |
808 | Main Energy, Inc. | Houston, TX 77079 | Oil & Gas Operator | May 2009 |
809 | Majestic Petroleum Operations Inc | Story, WY 82842 | Gas Operator | Mar 2007 |
810 | Mak-J Energy Wyoming LLC | Denver, CO 80620 | Oil & Gas Operator | Nov 2012 |
811 | Mallon Oil Company | Denver, CO 80202 | Oil & Gas Operator | Jun 2005 |
812 | Manewal Bradley Oil Company | Newcastle, WY 82701 | Oil & Gas Operator | Aug 2013 |
813 | Manx Oil Corporation | Casper, WY 82601 | Oil & Gas Operator | Jun 2010 |
814 | Mapco Oil Company | | Oil & Gas Operator | Jan 1985 |
815 | Mar/Reg Investments | Irving, TX 75016 | Oil & Gas Operator | Jul 1999 |
816 | Marathon Oil Company | Houston, TX 77024 | Oil & Gas Operator | Jan 2024 |
817 | Markus Production | Littleton, CO 80123 | Oil & Gas Operator | Dec 2023 |
818 | Marlin Oil Company LLC | Gillette, WY 82718 | Oil & Gas Operator | Mar 2023 |
819 | Marmik Oil Company | El Dorado, AR 71730 | Oil & Gas Operator | Jan 2015 |
820 | Marquis-Allred Eng Inc | | Oil & Gas Operator | Apr 1992 |
821 | Marshall & Winston, Inc. | Midland, TX 79710 | Oil & Gas Operator | Mar 2024 |
822 | Martens & Peck Operating Co | | Gas Operator | Feb 1997 |
823 | Martens & Peck Production Co | Denver, CO 80222 | Oil & Gas Operator | Feb 1997 |
824 | Martin Exploration | Westminster, CO 80030 | Oil & Gas Operator | Dec 1993 |
825 | Materi Exploration Inc | Upton, WY 82730 | Oil Operator | Nov 2021 |
826 | Matrix Production Company | Sugar Land, TX 77478 | Oil & Gas Operator | Jan 2024 |
827 | Maxim Drilling & Expl Inc | Gillette, WY 82717 | Oil & Gas Operator | Jan 2024 |
828 | Maximus Operating, LTD. | Kilgore, TX 75663 | Oil & Gas Operator | Mar 2024 |
829 | Mbi Oil & Gas LLC | Dickinson, ND 58601 | Oil & Gas Operator | Jan 2024 |
830 | McAdams Roux & Associates | Denver, CO 80202 | Oil & Gas Operator | Dec 1999 |
831 | McCartney Engineering LLC | Wheat Ridge, CO 80033 | Oil & Gas Operator | Jan 2024 |
832 | McClure Enterprises | Recluse, WY 82725 | Oil & Gas Operator | Dec 2023 |
833 | McCulliss Resource Company Inc | Denver, CO 80202 | Oil & Gas Operator | Jun 1999 |
834 | McEna Inc | Tulsa, OK 74135 | Oil & Gas Operator | Jul 2005 |
835 | McGuire John C | Gillette, WY 82717 | Oil & Gas Operator | Oct 2005 |
836 | McKenzie Production Company | Houston, TX 77063 | Oil & Gas Operator | May 1995 |
837 | MCL 1 Oil & Gas Wyoming LLC | Minneapolis, MN 55402 | Oil & Gas Operator | Jul 2018 |
838 | MCM Operating LLC | Midland, TX 79702 | Oil & Gas Operator | Feb 2024 |
839 | McMahon-Bullington LP | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2009 |
840 | McMurry Energy Company | | Oil & Gas Operator | Dec 2001 |
841 | McMurry Oil LLC | Denver, CO 80202 | Oil & Gas Operator | Dec 2004 |
842 | McO Resources Corporation | | Oil & Gas Operator | Feb 1986 |
843 | McQueen Ed & Company Inc | Lindsey, OK 73052 | Oil & Gas Operator | Apr 2014 |
844 | McRae & Henry LTD | Golden, CO 80401 | Oil & Gas Operator | May 2022 |
845 | Meadow Deep LLC | | Oil & Gas Operator | Jan 2024 |
846 | Medallion Exploration | Holladay, UT 84117 | Oil & Gas Operator | Dec 2015 |
847 | Medallion Petroleum, Inc. | Tulsa, OK 74103 | Oil & Gas Operator | Jan 2015 |
848 | Medallion Production Company | Tulsa, OK 74103 | Oil & Gas Operator | May 1997 |
849 | Medicine Bow Operating Company | Houston, TX 77002 | Oil & Gas Operator | Apr 2014 |
850 | Meerkat Logistics And Operations LLC | Tuscaloosa, AL 35401 | Oil Operator | Jan 2024 |
851 | Mega Energy LLC | Gillette, WY 82718 | Gas Operator | Jan 2024 |
852 | Mels Water Service Inc | Lysite, WY 82642 | Oil Operator | Mar 2013 |
853 | Memorial Exploration Company | Saint Louis, MO 63105 | Oil & Gas Operator | Aug 1996 |
854 | Memorial Production Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Mar 2024 |
855 | Merit Energy Company | Dallas, TX 75240 | Oil & Gas Operator | Mar 2024 |
856 | Merit Productions | | Oil Operator | Sep 1996 |
857 | Meritage Energy Company LLC | Denver, CO 80202 | Oil & Gas Operator | May 2013 |
858 | Meritage Energy Partners LLC | Denver, CO 80202 | Oil & Gas Operator | Dec 2005 |
859 | Merrico Resources | | Oil Operator | Mar 1992 |
860 | Merrion Oil & Gas Corp | Farmington, NM 87401 | Oil & Gas Operator | Feb 2024 |
861 | Methane Productions Inc | Recluse, WY 82725 | Oil & Gas Operator | Apr 2007 |
862 | Meyer Douglas P | Longmont, CO 80501 | Oil & Gas Operator | Aug 2006 |
863 | Michigan-Wisconsin Pipe Line Co | | Oil & Gas Operator | Dec 1983 |
864 | Mid Central Production LLC | Evanston, WY 82930 | Oil Operator | Dec 2023 |
865 | Mid-Con Energy Operating, LLC | Tulsa, OK 74136 | Oil & Gas Operator | Jan 2024 |
866 | Midgard Energy Company | The Woodlands, TX 77380 | Oil & Gas Operator | Dec 2014 |
867 | Millennium Oil & Gas LLC | Denver, CO 80203 | Oil & Gas Operator | Feb 2024 |
868 | Mineral Resources & Engineering | Aladdin, WY 82710 | Oil Operator | Jul 1991 |
869 | Mingo Oil Producers | Salt Lake City, UT 84111 | Oil & Gas Operator | Nov 1987 |
870 | Minnelusa Oil LLC | Temecula, CA 92589 | Oil Operator | Feb 2002 |
871 | Misahar Investments | Evergreen, CO 80439 | Oil Operator | Dec 1992 |
872 | Mitchell Energy Corp | Houston, TX 77002 | Oil & Gas Operator | Aug 2013 |
873 | Mitchell M J | | Oil & Gas Operator | Jan 1983 |
874 | Mobil Expl & Producing North America Inc | | Oil & Gas Operator | Nov 1986 |
875 | Moco Oil Inc | | Oil Operator | May 1984 |
876 | Mon-Oil Inc | | Oil & Gas Operator | Apr 1996 |
877 | Monahan Rex | Sterling, CO 80751 | Oil & Gas Operator | Jun 2002 |
878 | Moncrief W A Jr | Fort Worth, TX 76102 | Oil & Gas Operator | Jan 2024 |
879 | Monsanto Company | Indianapolis, IN 46280 | Oil & Gas Operator | Jan 2005 |
880 | Montana Power Company | Butte, MT 59701 | Oil & Gas Operator | Apr 2002 |
881 | Montex Exploration | Sugarland, TX 77478 | Oil Operator | Apr 2003 |
882 | Monument Global Resources Inc | Dallas, TX 75243 | Oil & Gas Operator | Sep 2023 |
883 | Morgan Energy Corporation | Englewood, CO 80110 | Oil & Gas Operator | Mar 2006 |
884 | Morning Star Oil Company | Thermopolis, WY 82443 | Oil Operator | Jan 2024 |
885 | Morsey Oil & Gas Corporation | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Mar 2024 |
886 | Mosbacher Production Co. | Houston, TX 77001 | Oil & Gas Operator | Aug 1984 |
887 | Moss Properties Inc | | Oil & Gas Operator | Mar 1986 |
888 | Mountain Hawk Energy LLC | Athens, TX 75751 | Gas Operator | Jan 2015 |
889 | Mountain Petroleum Corp | Denver, CO 80202 | Oil & Gas Operator | Jan 2016 |
890 | Mountain Resource Corporation | Salt Lake City, UT 84124 | Oil & Gas Operator | Dec 1988 |
891 | MRD Operating LLC (Delaware) | Houston, TX 77010 | Oil & Gas Operator | Jul 2015 |
892 | MTG Operating Inc | Ridgeland, MS 39158 | Gas Operator | Apr 2011 |
893 | Mueller Fred W | | Oil & Gas Operator | Dec 1995 |
894 | Mull Drilling Company | Wichita, KS 67206 | Oil & Gas Operator | Jan 2024 |
895 | Mundell F E | Watertown, SD 57201 | Oil & Gas Operator | Aug 1994 |
896 | Murex Petroleum Corporation | Humble, TX 77347 | Oil & Gas Operator | Jan 2024 |
897 | Murphy D V | | Oil Operator | Dec 1989 |
898 | Murphy Oil USA Inc | New Orleans, LA 70161 | Oil & Gas Operator | Jan 1993 |
899 | Murphy Sheldon L & Loretta | Newcastle, WY 82701 | Oil & Gas Operator | Feb 2024 |
900 | Mustang Oil & Gas Corporation | Wichita Falls, TX 76308 | Oil & Gas Operator | Jul 2021 |