1 | Abraxas Petroleum Corporation | San Antonio, TX 78259 | Oil & Gas Operator | Dec 2024 |
2 | American Exploration Company | Houston, TX 77010 | Oil & Gas Operator | Jan 2000 |
3 | Apex Energy, L.L.C. | Tulsa, OK 74114 | Oil & Gas Operator | Sep 2024 |
4 | Bain Resources, Inc. | Arlington, TX 76012 | Oil & Gas Operator | Oct 2024 |
5 | Basic Earth Science Systems, Inc. | Austin, TX 78714 | Oil & Gas Operator | Apr 2010 |
6 | Bensun Energy, LLC | Grandview, TX 76050 | Oil Operator | Aug 2020 |
7 | Berco Resources, Inc. | Denver, CO 80202 | Oil & Gas Operator | Feb 2002 |
8 | Berenergy Corporation | Denver, CO 80217 | Oil & Gas Operator | Nov 2024 |
9 | Berexco LLC | Wichita, KS 67206 | Oil & Gas Operator | Dec 2024 |
10 | Bill Barrett Corporation | Denver, CO 80202 | Oil & Gas Operator | Dec 2017 |
11 | Bluebonnet Energy Corporation | Englewood, CO 80112 | Oil & Gas Operator | Sep 2015 |
12 | Bowline Energy LLC | Denver, CO 80201 | Oil & Gas Operator | Dec 2022 |
13 | Brooks Exploration, Inc. | Denver, CO 80293 | Oil & Gas Operator | Mar 2001 |
14 | Burlington Resources Oil & Gas Company LP | Houston, TX 77252 | Oil & Gas Operator | Dec 2024 |
15 | Camwest II LP | McKinney, TX 75070 | Oil & Gas Operator | Jul 2007 |
16 | Camwest Limited Partnership | Denver, CO 80202 | Oil & Gas Operator | Apr 2004 |
17 | Chaco Energy Company | Denver, CO 80201 | Oil & Gas Operator | Oct 2024 |
18 | Chandler Energy LLC | Denver, CO 80202 | Oil & Gas Operator | Jan 2009 |
19 | Chaparral Energy, L.L.C. | Oklahoma City, OK 73142 | Oil & Gas Operator | Dec 2024 |
20 | Charger Resources, LLC | Hurst, TX 76054 | Oil & Gas Operator | Aug 2015 |
21 | Chesapeake Operating, LLC | Oklahoma City, OK 73154 | Oil & Gas Operator | Dec 2024 |
22 | Citation Oil & Gas Corp. | Houston, TX 77269 | Oil & Gas Operator | Dec 2024 |
23 | Cody Energy, Inc. | Houston, TX 77077 | Oil & Gas Operator | Oct 2024 |
24 | Colt Resources Corporation | Billings, MT 59103 | Oil & Gas Operator | Feb 2013 |
25 | Continental Resources, Inc. | Oklahoma City, OK 73126 | Oil & Gas Operator | Dec 2024 |
26 | Costilla Energy Inc | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
27 | Crown Oil, Inc. | Houston, TX 77002 | Oil Operator | Jan 1999 |
28 | D90 Energy, LLC | Austin, TX 78746 | Oil & Gas Operator | Dec 2024 |
29 | Digital Operating Company LLC | Boerne, TX 78006 | Oil & Gas Operator | Dec 2024 |
30 | Diversified Operating Corporation | Golden, CO 80401 | Oil & Gas Operator | Oct 2012 |
31 | Dominion Oklahoma Texas Exploration & Production | Houston, TX 77060 | Oil & Gas Operator | Dec 2006 |
32 | Eagle Oil & Gas Co. | Dallas, TX 75225 | Oil & Gas Operator | Dec 2024 |
33 | Eagle Operating Inc | Minot, ND 58701 | Oil & Gas Operator | Oct 2024 |
34 | Earthstone Energy, Inc. | The Woodlands, TX 77380 | Oil & Gas Operator | Dec 2017 |
35 | Earthstone Operating, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Dec 2024 |
36 | El Paso E&P Company, L.P. | Houston, TX 77002 | Oil & Gas Operator | Mar 2013 |
37 | El Paso Production Oil & Gas Co. | Houston, TX 77252 | Oil & Gas Operator | Dec 2024 |
38 | Empire North Dakota LLC | Tulsa, OK 74114 | Oil & Gas Operator | Oct 2024 |
39 | Energy Equity Company | Columbus, MT 59019 | Oil & Gas Operator | Sep 2024 |
40 | Energyquest II, LLC | The Woodlands, TX 77381 | Oil & Gas Operator | Sep 2024 |
41 | Enerplus Resources USA Corporation | Denver, CO 80202 | Oil & Gas Operator | Oct 2024 |
42 | Equinor Energy LP | Austin, TX 78730 | Oil & Gas Operator | Oct 2021 |
43 | Equitable Resources Energy Co, Western Region | Billings, MT 59102 | Oil & Gas Operator | May 1997 |
44 | Flying J Oil & Gas Inc | North Salt Lake, UT 84054 | Oil & Gas Operator | Dec 2009 |
45 | Forcenergy Inc | Miami, FL 33129 | Oil & Gas Operator | Mar 2015 |
46 | Forest Oil Corporation | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
47 | Foster Energy Group, LLC | Wolfforth, TX 79382 | Oil & Gas Operator | Sep 2024 |
48 | Foundation Energy Management, LLC | Addison, TX 75001 | Oil & Gas Operator | Dec 2024 |
49 | Germany Oil Company | Tulsa, OK 74135 | Oil & Gas Operator | Oct 2002 |
50 | Griffon & Associates, L.L.C. | Pearland, TX 77581 | Oil & Gas Operator | Jul 2008 |
51 | Grizzly Operating LLC | Houston, TX 77057 | Oil & Gas Operator | Oct 2024 |
52 | HRC Operating, LLC | Denver, CO 80202 | Oil & Gas Operator | Nov 2017 |
53 | Hugoton Energy Corporation | Oklahoma City, OK 73113 | Oil & Gas Operator | Dec 2019 |
54 | Huntington Energy LLC | Nichols Hill, OK 73116 | Oil & Gas Operator | Dec 2024 |
55 | Huntington Resources Inc | Tulsa, OK 74103 | Oil & Gas Operator | Oct 2006 |
56 | Intoil, Inc. | Englewood, CO 80155 | Oil & Gas Operator | Dec 2002 |
57 | J.H.R. Corporation | Bridgeville, PA 15017 | Oil & Gas Operator | Jul 2001 |
58 | Kodiak Oil & Gas (USA) Inc. | Denver, CO 80202 | Oil & Gas Operator | Sep 2020 |
59 | Lamamco Drilling Company | Skiatook, OK 74070 | Oil & Gas Operator | Sep 2024 |
60 | Legacy Reserves Operating LP | Denver, CO 80201 | Oil & Gas Operator | Dec 2024 |
61 | Linn Operating, Inc. | Houston, TX 77002 | Oil & Gas Operator | May 2017 |
62 | Main Energy, Inc. | Houston, TX 77079 | Oil & Gas Operator | May 2009 |
63 | Makoil, Inc. | Lake Forest, CA 92630 | Oil & Gas Operator | Jul 2007 |
64 | Manuel Corporation | Wichita, KS 67206 | Oil & Gas Operator | Oct 2024 |
65 | Marathon Oil Company | Houston, TX 77024 | Oil & Gas Operator | Oct 2024 |
66 | McCullis Resources Co., Inc. | Littleton, CO 80161 | Oil & Gas Operator | Oct 2024 |
67 | McRae & Henry LTD | Golden, CO 80401 | Oil & Gas Operator | May 2022 |
68 | Mystique Resources Company | Aurora, CO 80016 | Oil & Gas Operator | Feb 2023 |
69 | Nance Petroleum Corporation | Billings, MT 59103-7168 | Oil & Gas Operator | Nov 2007 |
70 | Nearburg Producing Company | Dallas, TX 75380 | Oil & Gas Operator | Dec 2024 |
71 | Neptune Operating LLC | Houston, TX 77024 | Oil & Gas Operator | Oct 2024 |
72 | Newfield Production Company | The Woodlands, TX 77380-2764 | Oil & Gas Operator | Jul 2022 |
73 | Nexen Oil And Gas U.S.A. Inc. | Calgary, AB T2P 5C1 | Oil & Gas Operator | Feb 2010 |
74 | Nielco, Inc. | Billings, MT 59103 | Oil & Gas Operator | Apr 2002 |
75 | Northern Oil Production, Inc. | Bozeman, MT 59718 | Oil & Gas Operator | Oct 2024 |
76 | Northstar Gas Company Inc | | Oil & Gas Operator | Jan 2016 |
77 | Oasis Petroleum North America LLC | Houston, TX 77002 | Oil & Gas Operator | Oct 2024 |
78 | Ocean Energy Inc | Houston, TX 77002 | Oil & Gas Operator | Aug 2003 |
79 | Okie Crude Company | Tulsa, OK 74103 | Oil & Gas Operator | Sep 2024 |
80 | Olympic Exploration & Production Co | Norman, OK 73072 | Oil Operator | May 2003 |
81 | Omimex Canada, LTD. | Fort Worth, TX 76120-3608 | Oil & Gas Operator | Oct 2024 |
82 | Omimex Petroleum Inc | Fort Worth, TX 76120 | Oil & Gas Operator | Aug 2022 |
83 | Outlook Petroleum Corp. | Midland, TX 79702 | Oil & Gas Operator | Jan 2001 |
84 | Panther Creek Resources, LLC | Denver, CO 80202 | Oil & Gas Operator | May 2012 |
85 | Petro-Hunt Corporation | Dallas, TX 75201 | Oil & Gas Operator | Jun 2003 |
86 | Petro-Hunt, L.L.C. | Dallas, TX 75201 | Oil & Gas Operator | Dec 2024 |
87 | Presco Inc | The Woodlands, TX 77380 | Oil & Gas Operator | Oct 2020 |
88 | Pride Energy Company | Tulsa, OK 74170 | Oil & Gas Operator | Dec 2024 |
89 | Prima Exploration, Inc. | Denver, CO 80206 | Oil & Gas Operator | Oct 2024 |
90 | Primewest Petroleum Inc. | Centennial, CO 80111 | Oil & Gas Operator | Jan 2009 |
91 | Prospective Investment & Trading Co., LTD., The | Tulsa, OK 74170-2320 | Oil & Gas Operator | Apr 2014 |
92 | Rankin, Paul | Bridgeville, PA 15017 | Oil & Gas Operator | Jun 2016 |
93 | Rim Operating, Inc. | Englewood, CO 80112 | Oil & Gas Operator | Dec 2024 |
94 | Samedan Oil Corporation | Houston, TX 77067 | Oil & Gas Operator | Dec 2019 |
95 | Samson Oil & Gas USA Inc | Denver, CO 80202 | Oil & Gas Operator | Oct 2024 |
96 | Samson Resources Company | Tulsa, OK 74103 | Oil & Gas Operator | Sep 2024 |
97 | Sands Oil Company Inc | Billings, MT 59103 | Oil & Gas Operator | Oct 2024 |
98 | Shakespeare Oil Co Inc | Salem, IL 62881 | Oil & Gas Operator | Oct 2024 |
99 | Sinclair Oil & Gas Company | Salt Lake Cty, UT 84130 | Oil & Gas Operator | Dec 2024 |
100 | SM Energy Company | Midland, TX 79707 | Oil & Gas Operator | Dec 2024 |