1 | Argonex Company LLC | | Oil & Gas Operator | Jan 2024 |
2 | Axis Exploration LLC | | Oil & Gas Operator | Oct 2024 |
3 | Barrett Corporation* Bill | | Oil & Gas Operator | Oct 2024 |
4 | Bataa Oil Inc | Greeley, CO 80634 | Oil & Gas Operator | Oct 2024 |
5 | Bates* James Edward | | Oil & Gas Operator | Jul 2017 |
6 | Bayless Producer LLC* Robert L | | Oil & Gas Operator | Oct 2024 |
7 | Bayswater Exploration & Production LLC | Denver, CO 80202 | Oil & Gas Operator | Sep 2024 |
8 | Berry Energy Inc*Walter | | Oil & Gas Operator | Feb 2017 |
9 | Blue Chip Oil Inc | | Oil & Gas Operator | Oct 2024 |
10 | Blue Creek Inc | | Oil & Gas Operator | Dec 2002 |
11 | Bonanza Creek Energy Operating Company LLC | | Oil & Gas Operator | Oct 2024 |
12 | Bristol Resources Corporation | Tulsa, OK 74170 | Oil & Gas Operator | Feb 2022 |
13 | Burlington Resources Oil & Gas LP | | Oil & Gas Operator | Feb 2020 |
14 | Byron Oil Industries Inc | Ballwin, MO 63011 | Oil & Gas Operator | Apr 2019 |
15 | Carrizo Niobrara LLC | | Oil & Gas Operator | Aug 2017 |
16 | Cascade Oil And Gas, Inc | | Oil & Gas Operator | Jun 2005 |
17 | CGT Inc | | Oil & Gas Operator | May 2015 |
18 | Chaco Energy Company | Denver, CO 80201 | Oil & Gas Operator | Oct 2024 |
19 | Charles P Dunning LLC | | Oil & Gas Operator | Jun 2024 |
20 | City & County Of Denver | | Oil & Gas Operator | Sep 2023 |
21 | Colorado Interstate Gas Company LLC | Colorado Springs, CO 80944 | Oil & Gas Operator | Oct 2024 |
22 | Colton Limited Liability Co | | Oil & Gas Operator | Sep 2023 |
23 | ConocoPhillips Company | Midland, TX 79701 | Oil & Gas Operator | Dec 2024 |
24 | Coral Production Corporation | Denver, CO 80201 | Oil & Gas Operator | Sep 2024 |
25 | Crestone Peak Resources Operating LLC | | Oil & Gas Operator | Oct 2024 |
26 | Crimson Exploration Oper., Inc. | Houston, TX 77002 | Oil & Gas Operator | Dec 2019 |
27 | Dart Oil Co | Parker, CO 80134 | Oil & Gas Operator | Dec 2023 |
28 | Dawson Resources Inc | Franktown, CO 80116 | Oil & Gas Operator | Mar 2015 |
29 | Declar Oil & Gas Inc | | Oil & Gas Operator | Dec 2012 |
30 | Diamond Operating, Inc. | | Oil & Gas Operator | Feb 2022 |
31 | DJ Production Services Inc | | Oil & Gas Operator | Sep 2012 |
32 | Duncan Oil Inc | Denver, CO 80210 | Oil & Gas Operator | Jun 2016 |
33 | Edge Energy LLC | | Oil & Gas Operator | Oct 2024 |
34 | Encana Energy Resources Inc | Denver, CO 80202-2828 | Oil & Gas Operator | Feb 2024 |
35 | Encana Oil & Gas (USA) Inc. | Denver, CO 80202 | Oil & Gas Operator | Oct 2020 |
36 | Energy Oil And Gas Inc | | Oil & Gas Operator | Dec 2010 |
37 | Energy Search Company Inc | Aurora, CO 80011 | Oil & Gas Operator | Jun 2021 |
38 | Enervest Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2024 |
39 | Enprop Inc | | Oil & Gas Operator | Feb 2013 |
40 | Exco Resources Inc | Dallas, TX 75251 | Oil & Gas Operator | Sep 2024 |
41 | Extraction Oil & Gas LLC | Denver, CO 80202 | Oil & Gas Operator | Oct 2024 |
42 | Fahey Oil & Gas | | Oil & Gas Operator | Jul 2021 |
43 | Foundation Energy Management, LLC | Addison, TX 75001 | Oil & Gas Operator | Dec 2024 |
44 | Fritzler Resources, Inc. | Fort Morgan, CO 80701 | Oil & Gas Operator | Aug 2024 |
45 | Geotech Production Inc | Centennial, CO 80016 | Oil & Gas Operator | Jun 2020 |
46 | Gils Hot Oil Service | | Oil & Gas Operator | Jun 2022 |
47 | Goodwin Energy Management LLC | | Oil & Gas Operator | Dec 2022 |
48 | Great Western Operating Company LLC | | Oil & Gas Operator | Aug 2022 |
49 | Griffin Management LLC | | Oil & Gas Operator | Feb 2010 |
50 | H & R Well Services, Inc. | FT Morgan, CO 80701 | Oil & Gas Operator | Apr 2015 |
51 | Heartland Oil & Gas Company | | Oil & Gas Operator | Jun 2000 |
52 | Helena Resources Inc | Lakewood, CO 80215 | Oil & Gas Operator | Oct 2024 |
53 | Hilcorp Energy Company | Houston, TX 77208 | Oil & Gas Operator | Dec 2024 |
54 | HRC Operating, LLC | Denver, CO 80202 | Oil & Gas Operator | Nov 2017 |
55 | HRM Resources II, LLC | Denver, CO 80202 | Oil & Gas Operator | Jan 2022 |
56 | HRM Resources LLC | Denver, CO 80202 | Oil & Gas Operator | Aug 2015 |
57 | HS Resources, Inc. | Denver, CO 80202 | Oil & Gas Operator | Dec 2005 |
58 | Hyndrex Resources | | Oil & Gas Operator | Apr 2018 |
59 | Investment Equipment LLC | FT Morgan, CO 80701 | Oil & Gas Operator | Oct 2024 |
60 | K P Kauffman Company Inc | Denver, CO 80203 | Oil & Gas Operator | Oct 2024 |
61 | Kaiser-Francis Oil Company | Tulsa, OK 74121 | Oil & Gas Operator | Dec 2024 |
62 | Kerr-McGee Oil & Gas Onshore LP | Houston, TX 77046 | Oil & Gas Operator | Dec 2024 |
63 | Magpie Operating, Inc | | Oil & Gas Operator | Oct 2024 |
64 | Markus Production, Inc | | Oil & Gas Operator | Mar 2021 |
65 | Matrix Energy LLC | | Oil & Gas Operator | Apr 2013 |
66 | McCartney Engineering LLC | Wheat Ridge, CO 80033 | Oil & Gas Operator | Oct 2024 |
67 | Mendell Finisterre II LLC | | Oil & Gas Operator | Jun 2017 |
68 | Merit Energy Company | Dallas, TX 75240 | Oil & Gas Operator | Dec 2024 |
69 | Monahan* Rex Family Trust | | Oil & Gas Operator | Sep 2010 |
70 | Mountain Petroleum Corp | Denver, CO 80202 | Oil & Gas Operator | Jan 2016 |
71 | Natural Resource Group Inc | | Oil & Gas Operator | Jan 2024 |
72 | Noble Energy Inc | Midland, TX 79706 | Oil & Gas Operator | Dec 2024 |
73 | Noble Energy Production Inc | Houston, TX 77067 | Oil & Gas Operator | Dec 2024 |
74 | North American Resources Company | Billings, MT 59101 | Oil & Gas Operator | Dec 2019 |
75 | Omimex Petroleum Inc | Fort Worth, TX 76120 | Oil & Gas Operator | Aug 2022 |
76 | Overland Resources LLC | Greenwood VIllage, CO 80111 | Oil & Gas Operator | Jul 2019 |
77 | Painted Pegasus Petroleum LLC | | Oil & Gas Operator | Jul 2024 |
78 | Paladin Energy Partners LLC | | Oil & Gas Operator | Dec 2006 |
79 | Pancanadian Energy Resources Inc | | Oil & Gas Operator | Dec 2004 |
80 | Pape Oilfield Service Inc | | Oil & Gas Operator | Jul 2018 |
81 | Par Pacific Holdings Inc | | Oil & Gas Operator | Apr 2015 |
82 | Patina Oil & Gas Corporation | Denver, CO 80202 | Oil & Gas Operator | May 2016 |
83 | PDC Energy Inc | Denver, CO 80203 | Oil & Gas Operator | Sep 2024 |
84 | Peterson Energy Operating Inc | Loveland, CO 80537 | Oil & Gas Operator | Oct 2024 |
85 | Petro Operating Company LLC | | Oil & Gas Operator | Oct 2024 |
86 | Petro-Canada Resources (USA) Inc | Denver, CO 80202-472 | Oil & Gas Operator | Feb 2010 |
87 | Petroshare Corporation | | Oil & Gas Operator | Jan 2024 |
88 | Piland Resources | | Oil & Gas Operator | Mar 2022 |
89 | Poncho Production Co | | Oil & Gas Operator | Jan 2022 |
90 | Pozo Resources, Inc | Houston, TX 77002 | Oil & Gas Operator | Dec 2024 |
91 | Prima Exploration, Inc. | Denver, CO 80206 | Oil & Gas Operator | Nov 2024 |
92 | Private Oil Industries Inc | | Oil & Gas Operator | Feb 2004 |
93 | Providence Operating LLC Dba Poco Operating | | Oil & Gas Operator | Oct 2024 |
94 | Qualls Operating* R C | | Oil & Gas Operator | Mar 2005 |
95 | Raisa II Operating LLC | | Oil & Gas Operator | Mar 2017 |
96 | Recovery Energy Inc | | Oil & Gas Operator | Jan 2014 |
97 | Renegade Oil & Gas Company LLC | | Oil & Gas Operator | Oct 2024 |
98 | Rockies Oil & Gas Inc | | Oil & Gas Operator | Dec 2015 |
99 | Samson Resources Company | Tulsa, OK 74103 | Oil & Gas Operator | Sep 2024 |
100 | Sandlin Oil Corp | Dacono, CO 80514 | Oil & Gas Operator | Nov 2024 |