1 | Abraxas Petroleum Corporation | San Antonio, TX 78259 | Oil & Gas Operator | Nov 2024 |
2 | Ansbro Petroleum Company, LLC | Denver, CO 80202 | Oil & Gas Operator | Feb 2008 |
3 | Anschutz Exploration Corporation | Denver, CO 80202 | Oil & Gas Operator | Nov 2024 |
4 | Beren Corporation | Wichita, KS 67206 | Oil & Gas Operator | Nov 2024 |
5 | Berenergy Corporation | Denver, CO 80217 | Oil & Gas Operator | Sep 2024 |
6 | Branch Oil & Gas | Shelby, MT 59474-0766 | Oil & Gas Operator | Jul 2010 |
7 | Branch, Jerry L. | | Oil & Gas Operator | Jul 1999 |
8 | Cavalier Petroleum | Shelby, MT 59474 | Oil & Gas Operator | Oct 2014 |
9 | Chelin LLC | Cut Bank, MT 59427 | Oil & Gas Operator | Aug 2024 |
10 | Comanche Drilling Company | Cut Bank, MT 59427 | Oil & Gas Operator | Jun 2024 |
11 | Croft Petroleum Co. | Cut Bank, MT 59427 | Oil & Gas Operator | Dec 2022 |
12 | Cut Bank Gas Company | Cut Bank, MT 59427 | Gas Operator | Sep 2024 |
13 | Encana Oil & Gas (USA) Inc. | Denver, CO 80202 | Oil & Gas Operator | Oct 2020 |
14 | Flying J Oil & Gas Inc | North Salt Lake, UT 84054 | Oil & Gas Operator | Dec 2009 |
15 | Fulton Producing Co. | Shelby, MT 59474-0603 | Oil & Gas Operator | Feb 2005 |
16 | FX Drilling Company, Inc. | Cut Bank, MT 59427 | Oil & Gas Operator | Aug 2024 |
17 | Glacier Production, Inc. | Cut Bank, MT 59427 | Oil Operator | Aug 2024 |
18 | Grey Wolf Production Company, Inc. | Garnett, KS 66032-0426 | Oil Operator | Mar 2015 |
19 | Griffon Petroleum, Inc. | Calgary, AB T2P 3K2 | Oil & Gas Operator | May 2007 |
20 | Gypsy Highview Gathering System, Inc. | Cut Bank, MT 59427-0250 | Oil & Gas Operator | Oct 2000 |
21 | Hardrock Oil Company | Great Falls, MT 59403 | Gas Operator | Aug 2024 |
22 | Home-Stake Oil & Gas Company | Plano, TX 75093 | Oil & Gas Operator | Jul 2024 |
23 | Humble Oil & Refining Co. | Houston, TX 77252 | Oil & Gas Operator | Jan 2000 |
24 | J & G Operating | Shelby, MT 59474 | Oil & Gas Operator | Aug 2000 |
25 | K2 America Corporation | Calgary, AB T3P 3S8 | Oil & Gas Operator | Nov 2017 |
26 | KCS Resources, Inc. | Houston, TX 77002 | Oil & Gas Operator | May 2010 |
27 | Keesun Corporation | Cut Bank, MT 59427 | Oil & Gas Operator | Jul 2024 |
28 | Kipling Energy Incorporated | Shelby, MT 59474 | Oil & Gas Operator | Jan 2011 |
29 | Lamarsa Corp. | Cut Bank, MT 59427 | Oil & Gas Operator | Aug 2024 |
30 | Lyon, John J. | Bozeman, MT 59718 | Oil & Gas Operator | Jun 2022 |
31 | Manuel Corporation | Wichita, KS 67206 | Oil & Gas Operator | Aug 2024 |
32 | MCR, LLC | Shelby, MT 59474 | Oil & Gas Operator | Jun 2024 |
33 | Mercury Exploration Co | Fort Worth, TX 76104 | Oil & Gas Operator | Dec 2006 |
34 | Mogo Reagan, LLC | Cut Bank, MT 59427 | Oil & Gas Operator | Sep 2024 |
35 | Montalban Oil & Gas Operations, Inc. | Cut Bank, MT 59427 | Oil & Gas Operator | Sep 2024 |
36 | Montana Power Company | Butte, MT 59701 | Oil & Gas Operator | Apr 2002 |
37 | Montana Power Gas Company | | Oil & Gas Operator | Apr 2002 |
38 | Monte Grande Exploration, Inc. | Cut Bank, MT 59427 | Oil Operator | Oct 2000 |
39 | Mountain States Resources Inc | Cut Bank, MT 59427 | Oil & Gas Operator | Oct 2000 |
40 | Murphy Exploration & Prod. Co. | Houston, TX 77094 | Oil & Gas Operator | Jun 2011 |
41 | Nance Petroleum Corporation | Billings, MT 59103-7168 | Oil & Gas Operator | Nov 2007 |
42 | New Horizon Resources LLC | Houston, TX 77057 | Oil & Gas Operator | Nov 2024 |
43 | Newfield Production Company | The Woodlands, TX 77380-2764 | Oil & Gas Operator | Jul 2022 |
44 | Northwestern Corporation | Butte, MT 59701 | Oil & Gas Operator | Sep 2024 |
45 | Northwestern Energy, LLC | Butte, MT 59701 | Oil & Gas Operator | Dec 2004 |
46 | NRC Development, LLC | | Gas Operator | Nov 2002 |
47 | Omimex Canada, LTD. | Fort Worth, TX 76120-3608 | Oil & Gas Operator | Sep 2024 |
48 | Phoenix Production Company | Cody, WY 82414-3607 | Oil & Gas Operator | Oct 2023 |
49 | Provident Energy Of Montana, LLC | Cut Bank, MT 59427 | Oil Operator | Aug 2024 |
50 | Quest Petroleum Corporation | Reno, NV 89570 | Oil Operator | Apr 1998 |
51 | Quicksilver Resources Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Mar 2018 |
52 | Ranck Oil Company | Cut Bank, MT 59427 | Oil & Gas Operator | Jun 2024 |
53 | Rock Creek Oil, Inc. | Dallas, TX 75225 | Oil & Gas Operator | Nov 2019 |
54 | Roland Oil And Gas | Cut Bank, MT 59427 | Oil Operator | Feb 2023 |
55 | Rosetta Resources Operating LP | San Antonio, TX 78216 | Oil & Gas Operator | Nov 2024 |
56 | Somont Oil Co., Inc. | Spring, TX 77379 | Oil & Gas Operator | Sep 2024 |
57 | St. Mary Land & Exploration Co | Denver, CO 80201 | Oil & Gas Operator | Jun 2010 |
58 | Summit Resources, Inc. | Houston, TX 77077 | Oil & Gas Operator | Sep 2016 |
59 | Synergy Offshore LLC | Houston, TX 77024 | Oil & Gas Operator | Feb 2022 |
60 | Trout Kye Jr | | Oil & Gas Operator | Dec 2010 |
61 | True Oil LLC | Casper, WY 82602 | Oil & Gas Operator | Sep 2024 |
62 | Union Oil Co Of California | Midland, TX 79706 | Oil & Gas Operator | Jan 2022 |
63 | United States Energy Corp. | Longview, TX 75601 | Oil & Gas Operator | Jun 2024 |
64 | Yellowstone Petroleums Inc. | Canada, 00100 | Oil & Gas Operator | Jul 2024 |