1 | Adobe Resources Corporation | Midland, TX 79701 | Oil & Gas Operator | Aug 2002 |
2 | Agri-Acres Inc | Billings, MT 59103 | Oil Operator | Jun 1996 |
3 | Ajax Oil Company | Billings, MT 59103 | Oil & Gas Operator | Dec 2003 |
4 | Alpha Petrovision Us Inc | Canada, 00100 | Oil & Gas Operator | May 2013 |
5 | Altex Oil Company | Breckenridge, CO 80424 | Oil & Gas Operator | Dec 2005 |
6 | Altus Exploration Company | Denver, CO 80202 | Oil & Gas Operator | Jul 1984 |
7 | Anchor Bay Corporation | Denver, CO 80202 | Oil & Gas Operator | Jun 2007 |
8 | Antelope Energy Company LLC | Denver, CO 80202 | Oil & Gas Operator | Oct 2024 |
9 | Arjay Oil Company | Salt Lake City, UT 84110 | Oil & Gas Operator | May 2000 |
10 | Atlantic Oil And Gas Development LLC | Rockledge, FL 32955 | Oil Operator | Nov 2024 |
11 | Bass Enterprises Production Co | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2006 |
12 | Beartooth Oil & Gas Company | Billings, MT 59103 | Oil & Gas Operator | Oct 2024 |
13 | Bill Barrett Corporation | Denver, CO 80202 | Oil & Gas Operator | Dec 2017 |
14 | Bower Properties LLC | Worland, WY 82401 | Oil & Gas Operator | Aug 2005 |
15 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Oct 2024 |
16 | BP Exploration Inc | | Oil & Gas Operator | May 1993 |
17 | Breck Operating Corp. | Breckenridge, TX 76424 | Oil & Gas Operator | Oct 2024 |
18 | Brehm Investment Group Inc | | Oil Operator | Jul 1991 |
19 | Brehm Oil | MT. Vernon, IL 62864 | Oil Operator | Jan 1986 |
20 | Brent Exploration | | Oil & Gas Operator | Dec 1993 |
21 | Bronco Oil & Gas Co | Casper, WY 82602 | Oil & Gas Operator | Oct 1987 |
22 | Bunkirt J J Oil & Gas Corporation | Powell, WY 82435 | Oil & Gas Operator | Oct 2024 |
23 | Burlington Resources Oil & Gas Company L | Gillette, WY 82718 | Oil & Gas Operator | Jan 2022 |
24 | C & K Petroleum | | Oil & Gas Operator | Jan 1984 |
25 | Cat Oil | Byron, WY 82412 | Oil Operator | May 2001 |
26 | Cenex | | Oil & Gas Operator | Dec 1996 |
27 | Central Resources Inc | Denver, CO 80203 | Oil & Gas Operator | Dec 2019 |
28 | Chevron USA Inc | Midland, TX 79706 | Oil & Gas Operator | Dec 2024 |
29 | Citation Oil & Gas Corp. | Houston, TX 77269 | Oil & Gas Operator | Dec 2024 |
30 | Cody Energy, Inc. | Houston, TX 77077 | Oil & Gas Operator | Oct 2024 |
31 | Conoco Inc. | Houston, TX 77252 | Oil & Gas Operator | Mar 2015 |
32 | Costilla Energy Inc | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
33 | Crystal Exploration & Production Company | Shreveport, LA 71120 | Oil & Gas Operator | Feb 1995 |
34 | D & J Oil Co | Kermit, TX 79745 | Oil & Gas Operator | Dec 2024 |
35 | Dalen Resources Oil & Gas Co. | Dallas, TX 75206 | Oil & Gas Operator | Jun 2010 |
36 | Davis Exploration | | Oil Operator | Dec 2007 |
37 | Devon Energy Production Company LP | Oklahoma City, OK 73102 | Oil & Gas Operator | Dec 2024 |
38 | Devon SFS Operating Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2008 |
39 | Dolezal George Jr | Littleton, CO 80163 | Oil & Gas Operator | Sep 2006 |
40 | Dominion Exploration & Production Inc | Houston, TX 77060 | Oil & Gas Operator | Apr 2015 |
41 | Dyco Petroleum Corporation | Tulsa, OK 74103 | Oil & Gas Operator | Mar 2015 |
42 | Elf Aquitaine Inc | Houston, TX 77002 | Oil & Gas Operator | May 1991 |
43 | Endeavor Energy LLC | | Oil Operator | Sep 2023 |
44 | Enstar Petroleum Inc | | Oil & Gas Operator | Apr 1985 |
45 | Equitable Resources Energy Company | Big Stone Gap, VA 24219 | Oil & Gas Operator | Dec 1997 |
46 | Equity Oil Company | Salt Lake City, UT 84110-095 | Oil & Gas Operator | Aug 2004 |
47 | Exxonmobil Oil Corp | Houston, TX 77210 | Oil & Gas Operator | Oct 2024 |
48 | Faulconer Vernon E Inc | Tyler, TX 75711 | Oil & Gas Operator | Oct 2024 |
49 | Florida Gas Exploration Co | | Oil & Gas Operator | Feb 1985 |
50 | Flying J Oil & Gas Inc | North Salt Lake, UT 84054 | Oil & Gas Operator | Dec 2009 |
51 | Gary-Williams Production Company | Denver, CO 80202 | Oil & Gas Operator | May 2000 |
52 | Goldmark Engineering Inc | Casper, WY 82602 | Oil & Gas Operator | Oct 2004 |
53 | Granite Creek Energy LLC | | Oil & Gas Operator | Oct 2024 |
54 | Great Northern Gas Company | Denver, CO 80293-0602 | Oil & Gas Operator | Jul 2017 |
55 | Great Western Drilling Co | Midland, TX 79701 | Oil & Gas Operator | Dec 2024 |
56 | Gulf Oil Corp. | Denver, CO 80201-0599 | Oil & Gas Operator | Dec 2014 |
57 | Hallador Petroleum LLP | Denver, CO 80264 | Oil & Gas Operator | Feb 2019 |
58 | Hanson Operating Company Inc | Roswell, NM 88202 | Oil & Gas Operator | Sep 2024 |
59 | Holden Harold B | Billings, MT 59103 | Oil Operator | Jun 1996 |
60 | Hughes Oil Company Inc | Odessa, TX 79765 | Oil & Gas Operator | Feb 2004 |
61 | Hunt Oil Company | Dallas, TX 75201 | Oil & Gas Operator | Dec 2024 |
62 | Husky Oil Company | Cody, WY 82414 | Oil & Gas Operator | Dec 1984 |
63 | Hyland Oil Corporation | | Oil & Gas Operator | Apr 1990 |
64 | Integrity Oil & Gas | Golden, CO 80401 | Oil & Gas Operator | May 2011 |
65 | Intoil, Inc. | Englewood, CO 80155 | Oil & Gas Operator | Dec 2002 |
66 | Kaiser-Francis Oil Company | Tulsa, OK 74121 | Oil & Gas Operator | Dec 2024 |
67 | Kaneb Oil & Gas | | Oil & Gas Operator | Oct 1987 |
68 | KCS Mountain Resources Inc | Manderson, WY 82432 | Oil & Gas Operator | Nov 2006 |
69 | Kentex Worland LLC | Dallas, TX 75225 | Oil & Gas Operator | Oct 2024 |
70 | Kirkwood W C | Casper, WY 82602 | Oil & Gas Operator | May 2005 |
71 | Koch Exploration Company, LLC | Denver, CO 80202 | Oil & Gas Operator | Jun 2019 |
72 | Koch Production Company | Worland, WY 82401 | Oil & Gas Operator | Dec 2002 |
73 | L & R Drilling Company | Belle Fourche, SD 57717 | Oil & Gas Operator | Dec 1999 |
74 | Legacy Reserves Operating LP | Denver, CO 80201 | Oil & Gas Operator | Dec 2024 |
75 | Lissolo J W | Yuma, AZ 85365 | Oil & Gas Operator | Feb 2017 |
76 | M-3 Industries | Casper, WY 82602 | Oil & Gas Operator | Aug 2024 |
77 | Mapco Oil Company | | Oil & Gas Operator | Jan 1985 |
78 | Marathon Oil Company | Houston, TX 77024 | Oil & Gas Operator | Oct 2024 |
79 | McCulliss Resource Company Inc | Denver, CO 80202 | Oil & Gas Operator | Jun 1999 |
80 | McMurry Oil LLC | Denver, CO 80202 | Oil & Gas Operator | Dec 2004 |
81 | Merit Energy Company | Dallas, TX 75240 | Oil & Gas Operator | Dec 2024 |
82 | Merit Productions | | Oil Operator | Sep 1996 |
83 | Michigan-Wisconsin Pipe Line Co | | Oil & Gas Operator | Dec 1983 |
84 | Mitchell Energy Corp | Houston, TX 77002 | Oil & Gas Operator | Aug 2013 |
85 | National Treasure Mines | San Marina, CA 91118 | Oil Operator | Dec 1998 |
86 | Natural Gas Processing Company | Worland, WY 82401 | Oil & Gas Operator | Oct 2024 |
87 | Nepeco | Byron, WY 82412 | Oil Operator | Oct 2024 |
88 | New Era Petroleum Inc | Sheridan, WY 82801 | Oil Operator | Oct 2024 |
89 | Newman Bros Drilling | | Oil & Gas Operator | Apr 2004 |
90 | Nielson & Associates Inc | Cody, WY 82414 | Oil & Gas Operator | Feb 2016 |
91 | Nielson Capital Partners LLC | Cody, WY 82414 | Oil & Gas Operator | Dec 2014 |
92 | Nor-Am Exploration | | Oil Operator | Jun 1981 |
93 | Oxtex Inc | | Oil & Gas Operator | Oct 1989 |
94 | P & P Producing Inc | Midland, TX 79702 | Oil & Gas Operator | Feb 2015 |
95 | Pacific Enterprises Oil Co USA | Dallas, TX 75201 | Oil & Gas Operator | Feb 2001 |
96 | Parker & Parsley Producing LP | Midland, TX 79702 | Oil & Gas Operator | Oct 1997 |
97 | Pearce Leonard | Manderson, WY 82432 | Oil Operator | Dec 1999 |
98 | Pearce Mary | | Oil Operator | Dec 1999 |
99 | Pearce Oil Company | Manderson, WY 82432 | Oil Operator | Jun 1999 |
100 | Pedry J J | | Oil Operator | Sep 1989 |