1 | Abraxas Petroleum Corporation | San Antonio, TX 78259 | Oil & Gas Operator | Nov 2024 |
2 | Alturas Energy, LLC | Sidney, MT 59270 | Oil Operator | Mar 2022 |
3 | American Exploration Company | Houston, TX 77010 | Oil & Gas Operator | Jan 2000 |
4 | Anr Production Company | Houston, TX 77046 | Oil & Gas Operator | Aug 2017 |
5 | Apex Energy, L.L.C. | Tulsa, OK 74114 | Oil & Gas Operator | Aug 2024 |
6 | Armstrong Operating, Inc. | Dickinson, ND 58602 | Oil & Gas Operator | Sep 2024 |
7 | Basic Earth Science Systems, Inc. | Austin, TX 78714 | Oil & Gas Operator | Apr 2010 |
8 | Bensun Energy, LLC | Grandview, TX 76050 | Oil Operator | Aug 2020 |
9 | Berco Resources, Inc. | Denver, CO 80202 | Oil & Gas Operator | Feb 2002 |
10 | Berenergy Corporation | Denver, CO 80217 | Oil & Gas Operator | Sep 2024 |
11 | Bill Barrett Corporation | Denver, CO 80202 | Oil & Gas Operator | Dec 2017 |
12 | Black Hawk Resources, LLC | Bowman, ND 58623 | Oil & Gas Operator | Jun 2011 |
13 | Blackjack Oil, Inc. | Las Vegas, NV 89128 | Oil & Gas Operator | Nov 2019 |
14 | Brighton Energy LLC | Tulsa, OK 74170 | Oil & Gas Operator | Mar 2015 |
15 | Brooks Exploration, Inc. | Denver, CO 80293 | Oil & Gas Operator | Mar 2001 |
16 | Burlington Resources Oil & Gas Company LP | Houston, TX 77252 | Oil & Gas Operator | Nov 2024 |
17 | Chaco Energy Company | Denver, CO 80201 | Oil & Gas Operator | Sep 2024 |
18 | Chaparral Energy, L.L.C. | Oklahoma City, OK 73142 | Oil & Gas Operator | Nov 2024 |
19 | Charger Resources, LLC | Hurst, TX 76054 | Oil & Gas Operator | Aug 2015 |
20 | Chesapeake Operating, LLC | Oklahoma City, OK 73154 | Oil & Gas Operator | Nov 2024 |
21 | Choctaw II Oil & Gas, LTD. | Houston, TX 77002 | Oil & Gas Operator | Jan 2002 |
22 | Citation Oil & Gas Corp. | Houston, TX 77269 | Oil & Gas Operator | Nov 2024 |
23 | Collins & Ware, Inc. | Midland, TX 79701 | Oil & Gas Operator | Aug 2003 |
24 | Columbus Energy Corp. | Tulsa, OK 74103 | Oil & Gas Operator | Mar 2008 |
25 | Columbus Energy, LLC | Houston, TX 77046 | Oil & Gas Operator | Nov 2024 |
26 | Continental Resources, Inc. | Oklahoma City, OK 73126 | Oil & Gas Operator | Nov 2024 |
27 | Costilla Energy Inc | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
28 | Cowry Enterprises, LTD. | Littleton, CO 80161-3310 | Oil & Gas Operator | Mar 2022 |
29 | Crown Oil, Inc. | Houston, TX 77002 | Oil Operator | Jan 1999 |
30 | Crusader Energy Group Inc. | Austin, TX 78746 | Oil & Gas Operator | Mar 2015 |
31 | Denbury Onshore, LLC | Plano, TX 75024 | Oil & Gas Operator | Nov 2024 |
32 | Diamond Halo Group LLC | Grandview, TX 76050 | Oil Operator | May 2024 |
33 | Digital Operating Company LLC | Boerne, TX 78006 | Oil & Gas Operator | Nov 2024 |
34 | Dominion Oklahoma Texas Exploration & Production | Houston, TX 77060 | Oil & Gas Operator | Dec 2006 |
35 | Eagle Operating Inc | Minot, ND 58701 | Oil & Gas Operator | Sep 2024 |
36 | Earthstone Energy, Inc. | The Woodlands, TX 77380 | Oil & Gas Operator | Dec 2017 |
37 | Earthstone Operating, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Nov 2024 |
38 | El Paso Production Oil & Gas Co. | Houston, TX 77252 | Oil & Gas Operator | Nov 2024 |
39 | Emep Operating, LLC | Houston, TX 77002 | Oil & Gas Operator | Sep 2024 |
40 | Empire North Dakota LLC | Tulsa, OK 74114 | Oil & Gas Operator | Sep 2024 |
41 | Encore Operating LP | Plano, TX 75024 | Oil & Gas Operator | Sep 2024 |
42 | Endeavor Energy Resources, LP | Midland, TX 79701 | Oil & Gas Operator | Nov 2024 |
43 | Energyquest II, LLC | The Woodlands, TX 77381 | Oil & Gas Operator | Sep 2024 |
44 | Enerplus Resources USA Corporation | Denver, CO 80202 | Oil & Gas Operator | Sep 2024 |
45 | EOG Resources Inc | Midland, TX 79702 | Oil & Gas Operator | Nov 2024 |
46 | Equinor Energy LP | Austin, TX 78730 | Oil & Gas Operator | Oct 2021 |
47 | Equitable Resources Energy Co, Western Region | Billings, MT 59102 | Oil & Gas Operator | May 1997 |
48 | Fidelity Exploration & Production Company | Denver, CO 80203 | Oil & Gas Operator | Oct 2024 |
49 | Flying J Oil & Gas Inc | North Salt Lake, UT 84054 | Oil & Gas Operator | Dec 2009 |
50 | Forcenergy Inc | Miami, FL 33129 | Oil & Gas Operator | Mar 2015 |
51 | Forcenergy Onshore Inc. | Houston, TX 77002 | Oil & Gas Operator | Dec 2012 |
52 | Genesis St Operating LLC | Kansas City, MO 64108 | Oil & Gas Operator | Nov 2024 |
53 | Germany Oil Company | Tulsa, OK 74135 | Oil & Gas Operator | Oct 2002 |
54 | Grayson Mill Operating, LLC | Houston, TX 77024 | Oil & Gas Operator | Sep 2024 |
55 | Grizzly Operating LLC | Houston, TX 77057 | Oil & Gas Operator | Sep 2024 |
56 | H & R Well Services, Inc. | FT Morgan, CO 80701 | Oil & Gas Operator | Apr 2015 |
57 | Hallwood Petroleum, Inc. | Midland, TX 79701 | Oil & Gas Operator | Apr 2024 |
58 | Headington Oil Company LLC | Dallas, TX 75204 | Oil & Gas Operator | Apr 2016 |
59 | HRC Operating, LLC | Denver, CO 80202 | Oil & Gas Operator | Nov 2017 |
60 | Huntington Resources Inc | Tulsa, OK 74103 | Oil & Gas Operator | Oct 2006 |
61 | Intermountain Operating, Inc. | Billings, MT 59103 | Oil & Gas Operator | Jul 2001 |
62 | Intoil, Inc. | Englewood, CO 80155 | Oil & Gas Operator | Dec 2002 |
63 | JN Expl & Prod LTD Partnership | Billings, MT 59103-0159 | Oil & Gas Operator | Feb 2001 |
64 | Kaiser-Francis Oil Company | Tulsa, OK 74121 | Oil & Gas Operator | Nov 2024 |
65 | Kerr-McGee Oil & Gas Onshore LP | Houston, TX 77046 | Oil & Gas Operator | Nov 2024 |
66 | Kirkwood W C | Casper, WY 82602 | Oil & Gas Operator | May 2005 |
67 | Kraken Operating, LLC | Houston, TX 77024 | Oil & Gas Operator | Sep 2024 |
68 | Legacy Reserves Operating LP | Denver, CO 80201 | Oil & Gas Operator | Nov 2024 |
69 | Luff Exploration Company | Denver, CO 80203 | Oil & Gas Operator | Sep 2024 |
70 | Mach Petroleum, Inc. | Tulsa, OK 74153 | Oil & Gas Operator | Nov 2014 |
71 | Main Energy, Inc. | Houston, TX 77079 | Oil & Gas Operator | May 2009 |
72 | Marathon Oil Company | Houston, TX 77024 | Oil & Gas Operator | Sep 2024 |
73 | Mbi Oil & Gas LLC | Dickinson, ND 58601 | Oil & Gas Operator | Sep 2024 |
74 | Medallion Petroleum, Inc. | Tulsa, OK 74103 | Oil & Gas Operator | Jan 2015 |
75 | Merit Energy Company | Dallas, TX 75240 | Oil & Gas Operator | Nov 2024 |
76 | Missouri Basin Well Service, Inc. | Belfield, ND 58622 | Oil & Gas Operator | Jan 2018 |
77 | Montana Heartland LLC | Bismarck, ND 58504 | Oil & Gas Operator | Aug 2024 |
78 | Morningstar Operating LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Nov 2024 |
79 | Mountain Pacific General Inc. | Cut Bank, MT 59427 | Oil & Gas Operator | Jun 2022 |
80 | Murex Petroleum Corporation | Humble, TX 77347 | Oil & Gas Operator | Sep 2024 |
81 | Nance Petroleum Corporation | Billings, MT 59103-7168 | Oil & Gas Operator | Nov 2007 |
82 | Navasota Resources LTD. | | Oil & Gas Operator | Sep 2002 |
83 | Newfield Production Company | The Woodlands, TX 77380-2764 | Oil & Gas Operator | Jul 2022 |
84 | Northern Oil Production, Inc. | Bozeman, MT 59718 | Oil & Gas Operator | Sep 2024 |
85 | Oasis Petroleum North America LLC | Houston, TX 77002 | Oil & Gas Operator | Oct 2024 |
86 | Ocean Energy Inc | Houston, TX 77002 | Oil & Gas Operator | Aug 2003 |
87 | Orion Energy Partners LP | Denver, CO 80202 | Oil & Gas Operator | Aug 2024 |
88 | Panther Creek Resources, LLC | Denver, CO 80202 | Oil & Gas Operator | May 2012 |
89 | Panther Energy Company, LLC | Tulsa, OK 74103 | Oil & Gas Operator | May 2022 |
90 | Pennzoil Exploration & Production Co. | Carthage, TX 75633 | Oil & Gas Operator | Mar 2008 |
91 | Petro-Hunt, L.L.C. | Dallas, TX 75201 | Oil & Gas Operator | Nov 2024 |
92 | Pride Energy Company | Tulsa, OK 74170 | Oil & Gas Operator | Nov 2024 |
93 | Prima Exploration, Inc. | Denver, CO 80206 | Oil & Gas Operator | Sep 2024 |
94 | Ramhorn Energy, LLC | Green River, WY 82935 | Oil & Gas Operator | Aug 2024 |
95 | Ridge Energy | McKinney, TX 75070 | Oil & Gas Operator | Sep 2024 |
96 | Rim Operating, Inc. | Englewood, CO 80112 | Oil & Gas Operator | Nov 2024 |
97 | Ritchie Exploration, Inc. | Wichita, KS 67278 | Oil & Gas Operator | Aug 2024 |
98 | Rme Petroleum Company | Houston, TX 77251 | Oil & Gas Operator | Nov 2016 |
99 | Samson Oil & Gas USA Inc | Denver, CO 80202 | Oil & Gas Operator | Sep 2024 |
100 | Samson Resources Company | Tulsa, OK 74103 | Oil & Gas Operator | Aug 2024 |