1 | Mapco Inc | Billings, MT 59102 | Oil & Gas Operator | Dec 1983 |
2 | Mapco Oil & Gas Company | Tulsa, OK 74101-2115 | Oil & Gas Operator | Jan 1985 |
3 | Mapco Production Co | Billings, MT 59102 | Oil & Gas Operator | Apr 1994 |
4 | Mar/Reg Oil Company | Reno, NV 89511 | Oil & Gas Operator | Feb 2024 |
5 | Maralex Resources Inc | Ignacio, CO 81137 | Oil & Gas Operator | Feb 2024 |
6 | Marathon Oil Company | Houston, TX 77024 | Oil & Gas Operator | Feb 2024 |
7 | Marion Energy Inc | Houston, TX 770082292 | Oil & Gas Operator | May 2015 |
8 | Matrix Production Company | Sugar Land, TX 77478 | Oil & Gas Operator | Feb 2024 |
9 | Maxus Exploration Company | Dallas, TX 75201 | Oil & Gas Operator | Jan 1995 |
10 | McAdams, J F | | Oil Operator | May 1971 |
11 | McCulliss Resources Co Inc | Littleton, CO 80161-3248 | Oil & Gas Operator | Jun 2009 |
12 | McCulloch Geothermal Corporation | | Oil & Gas Operator | Jun 1982 |
13 | McCulloch Oil Corp Of Ca | | Oil & Gas Operator | May 1980 |
14 | McElvain Energy Inc | Denver, CO 80265 | Oil & Gas Operator | Nov 2019 |
15 | McElvain Oil & Gas Properties Inc | Denver, CO 80265-2080 | Oil & Gas Operator | Jul 2011 |
16 | McKenzie Petroleum Company | Houston, TX 77063 | Oil & Gas Operator | Aug 1995 |
17 | McKenzie Production Company | Houston, TX 77063 | Oil & Gas Operator | May 1995 |
18 | McLish, Holmes P | Denver, CO 80202 | Oil & Gas Operator | Dec 1983 |
19 | McOr Oil & Gas Corp | Houston, TX 77002 | Oil & Gas Operator | Oct 2013 |
20 | McRae & Henry LTD | Golden, CO 80401 | Oil & Gas Operator | May 2022 |
21 | Medallion Exploration | Holladay, UT 84117 | Oil & Gas Operator | Dec 2015 |
22 | Medallion Production Company | Tulsa, OK 74103 | Oil & Gas Operator | May 1997 |
23 | Megadon Enterprises, Inc | Salt Lake City, UT 84121 | Oil Operator | Sep 2019 |
24 | Meridian Oil Inc. | Houston, TX 77210 | Oil & Gas Operator | Aug 1996 |
25 | Merit Energy Company | Dallas, TX 75240 | Oil & Gas Operator | Apr 2024 |
26 | Merrion & Bayless | Farmington, NM 87401 | Oil & Gas Operator | May 1982 |
27 | Merrion Oil & Gas Corp | Farmington, NM 87401 | Oil & Gas Operator | Feb 2024 |
28 | Mesa Operating LTD Partnership | Amarillo, TX 79189 | Oil & Gas Operator | May 1994 |
29 | Mesa Production Company | Amarillo, TX 79189 | Oil & Gas Operator | Dec 1983 |
30 | Miami Oil Producers Inc | Reno, NV 89501 | Oil & Gas Operator | Dec 2012 |
31 | Middle Fork Energy Uinta, LLC | Denver, CO 80202 | Oil & Gas Operator | Feb 2024 |
32 | Milestone Pet/El Paso Expl | | Oil & Gas Operator | Jul 1985 |
33 | Miller Energy Inc | Houston, TX 77024 | Oil & Gas Operator | Oct 2016 |
34 | Miller, Dyer & Co LLC | Denver, CO 80202 | Oil & Gas Operator | May 2009 |
35 | Mitchell Energy Corp | Houston, TX 77002 | Oil & Gas Operator | Aug 2013 |
36 | Mobil Explor & Prod | Cortez, CO 81321 | Oil & Gas Operator | May 2001 |
37 | Mobil Oil Corporation | Houston, TX 77210 | Oil & Gas Operator | Jun 2016 |
38 | Monahan Rex | Sterling, CO 80751 | Oil & Gas Operator | Jun 2002 |
39 | Moncrief Oil | Casper, WY 82602 | Oil & Gas Operator | Feb 1986 |
40 | Monsanto | Englewood, CO 80111 | Oil & Gas Operator | Apr 1986 |
41 | Moose Mountain Divide #1, LLC | Roosevelt, UT 84066-1656 | Oil & Gas Operator | Feb 2024 |
42 | Mountain Fuel Supply Co | Salt Lake City, UT 84139 | Oil & Gas Operator | May 1984 |
43 | Mountain Oil And Gas Inc | Roosevelt, UT 84066 | Oil & Gas Operator | Feb 2024 |
44 | Mountain Petroleum Corp | Denver, CO 80202 | Oil & Gas Operator | Jan 2016 |
45 | Mountain Resource Corporation | Salt Lake City, UT 84124 | Oil & Gas Operator | Dec 1988 |
46 | Mountain States Petroleum Corp | Midland, TX 79702 | Oil & Gas Operator | Apr 2008 |
47 | Murdoch Oil Co Inc | Bluff, UT 84512 | Oil & Gas Operator | Jun 2010 |
48 | Mustang Fuel Corporation | Oklahoma City, OK 73114 | Oil & Gas Operator | Feb 2024 |