1 | 1876 Resources LLC | Highlands Ranch, CO 80129 | Oil & Gas Operator | Oct 2024 |
2 | 4-H Operating Corporation | | Oil & Gas Operator | Oct 2017 |
3 | 8 North LLC | Denver, CO 80202 | Oil & Gas Operator | Sep 2024 |
4 | Aceite Energy Corp | | Oil & Gas Operator | Feb 2007 |
5 | Advantage Resources Inc | Broomfield, CO 80020 | Oil & Gas Operator | Aug 2024 |
6 | Amoco Production Co. | Houston, TX 77253 | Oil & Gas Operator | Jun 2015 |
7 | Anadarko E&P Onshore LLC | Houston, TX 77046 | Oil & Gas Operator | Dec 2024 |
8 | Antelope Energy Company LLC | Denver, CO 80202 | Oil & Gas Operator | Oct 2024 |
9 | Apollo Operating LLC | | Oil & Gas Operator | Sep 2013 |
10 | Arch Oil & Gas, LLC | Dallas, TX 75254 | Oil & Gas Operator | Dec 2024 |
11 | Barrett Corporation* Bill | | Oil & Gas Operator | Aug 2024 |
12 | Basin Exploration Inc | Denver, CO 80202 | Oil & Gas Operator | Sep 2004 |
13 | Bataa Oil Inc | Greeley, CO 80634 | Oil & Gas Operator | Oct 2024 |
14 | Bates* James Edward | | Oil & Gas Operator | Jul 2017 |
15 | Bayswater Exploration & Production LLC | Denver, CO 80202 | Oil & Gas Operator | Sep 2024 |
16 | Belco Energy Corp. | Dallas, TX 75231 | Oil & Gas Operator | Mar 2015 |
17 | Beren Corporation | Wichita, KS 67206 | Oil & Gas Operator | Dec 2024 |
18 | Bic Petroleum Inc | | Oil & Gas Operator | Sep 2002 |
19 | Bison IV Operating LLC | | Oil & Gas Operator | Sep 2024 |
20 | Black Diamond Minerals LLC | | Oil & Gas Operator | Jun 2014 |
21 | Black Hills Exploration & Production Inc | Newcastle, WY 82701 | Oil & Gas Operator | May 2018 |
22 | Black Raven Energy Inc | | Oil & Gas Operator | Apr 2017 |
23 | Blue & Gray Energy Inc | | Oil & Gas Operator | Jun 2011 |
24 | Blue Chip Oil Inc | | Oil & Gas Operator | Oct 2024 |
25 | Blue Creek Inc | | Oil & Gas Operator | Dec 2002 |
26 | Bonanza Creek Energy Operating Company LLC | | Oil & Gas Operator | Sep 2024 |
27 | Brooks Exploration, Inc. | Denver, CO 80293 | Oil & Gas Operator | Mar 2001 |
28 | Brown Oil & Gas LLC | | Oil & Gas Operator | Oct 2024 |
29 | Cabot Oil & Gas Corporation | Houston, TX 77024 | Oil & Gas Operator | Sep 2024 |
30 | Caerus Washco LLC | Denver, CO 80202 | Oil & Gas Operator | Feb 2019 |
31 | Cannon Resources Inc | | Oil & Gas Operator | Sep 2003 |
32 | Carrizo Niobrara LLC | | Oil & Gas Operator | Aug 2017 |
33 | Carrizo Oil & Gas, Inc. | Houston, TX 77002 | Oil & Gas Operator | Dec 2024 |
34 | Cascade Oil And Gas, Inc | | Oil & Gas Operator | Jun 2005 |
35 | CCRP Operating Inc | Denver, CO 80202 | Oil & Gas Operator | Sep 2024 |
36 | CDM Oil & Gas | | Oil & Gas Operator | Oct 2018 |
37 | Ceh Operating LLC | | Oil & Gas Operator | Oct 2024 |
38 | Central Resources Inc | Denver, CO 80203 | Oil & Gas Operator | Dec 2019 |
39 | CFG Energy, Inc | | Oil & Gas Operator | Apr 2006 |
40 | Chaco Energy Company | Denver, CO 80201 | Oil & Gas Operator | Oct 2024 |
41 | Charles P Dunning LLC | | Oil & Gas Operator | Jun 2024 |
42 | Chesapeake Operating, LLC | Oklahoma City, OK 73154 | Oil & Gas Operator | Dec 2024 |
43 | Churchill Energy Inc | | Oil & Gas Operator | Sep 2020 |
44 | Cirque Resources LP | Denver, CO 80202 | Oil & Gas Operator | Aug 2016 |
45 | Civitas North LLC | | Oil & Gas Operator | Oct 2024 |
46 | Colorado Energy Minerals Inc | | Oil Operator | Dec 2010 |
47 | Colorado Oil & Gas Corporation | | Oil & Gas Operator | May 2003 |
48 | Colton Limited Liability Co | | Oil & Gas Operator | Sep 2023 |
49 | Condor Energy Technology LLC | | Oil & Gas Operator | Jul 2018 |
50 | Conquest Oil Company | Big Spring, TX 79721 | Oil & Gas Operator | Aug 2024 |
51 | Continental Resources, Inc. | Oklahoma City, OK 73126 | Oil & Gas Operator | Dec 2024 |
52 | Coral Production Corporation | Denver, CO 80201 | Oil & Gas Operator | Sep 2024 |
53 | Costilla Energy Inc | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
54 | Crestone Peak Resources Operating LLC | | Oil & Gas Operator | Oct 2024 |
55 | Crimson Exploration Oper., Inc. | Houston, TX 77002 | Oil & Gas Operator | Dec 2019 |
56 | Cub Creek Energy LLC | | Oil & Gas Operator | Oct 2023 |
57 | Davis, LLC* Edward Mike | | Oil & Gas Operator | Sep 2015 |
58 | Declar Oil & Gas Inc | | Oil & Gas Operator | Dec 2012 |
59 | Diamond Operating, Inc. | | Oil & Gas Operator | Feb 2022 |
60 | Diversified Operating Corporation | Golden, CO 80401 | Oil & Gas Operator | Oct 2012 |
61 | DJ Production Services Inc | | Oil & Gas Operator | Sep 2012 |
62 | DJ Resources Inc | Bowie, TX 76230 | Oil & Gas Operator | Nov 2017 |
63 | Donnelly Casing Pulling Co | | Oil Operator | Aug 2020 |
64 | Dugan Production Corp | Farmington, NM 87499 | Oil & Gas Operator | Oct 2024 |
65 | Earthstone Energy, Inc. | The Woodlands, TX 77380 | Oil & Gas Operator | Dec 2017 |
66 | Eddy Oil Company | | Oil & Gas Operator | May 2013 |
67 | Edge Energy II LLC | Golden, CO 80401 | Oil & Gas Operator | Oct 2024 |
68 | Edge Energy LLC | | Oil & Gas Operator | Sep 2024 |
69 | Elk Exploration Inc | | Oil & Gas Operator | Jul 2001 |
70 | Encana Energy Resources Inc | Denver, CO 80202-2828 | Oil & Gas Operator | Feb 2024 |
71 | Encana Oil & Gas (USA) Inc. | Denver, CO 80202 | Oil & Gas Operator | Oct 2020 |
72 | Energy Oil And Gas Inc | | Oil & Gas Operator | Dec 2010 |
73 | Enerplus Resources USA Corporation | Denver, CO 80202 | Oil & Gas Operator | Oct 2024 |
74 | Enervest Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2024 |
75 | Enprop Inc | | Oil & Gas Operator | Feb 2013 |
76 | EOG Resources Inc | Midland, TX 79702 | Oil & Gas Operator | Dec 2024 |
77 | Exco Resources Inc | Dallas, TX 75251 | Oil & Gas Operator | Sep 2024 |
78 | Extraction Oil & Gas LLC | Denver, CO 80202 | Oil & Gas Operator | Sep 2024 |
79 | Fifth Creek Energy Operating Company LLC | | Oil & Gas Operator | Mar 2018 |
80 | Fortitude Exploration Co | | Oil & Gas Operator | Sep 2024 |
81 | Foundation Energy Management, LLC | Addison, TX 75001 | Oil & Gas Operator | Dec 2024 |
82 | Fountainhead Resources LTD | | Oil & Gas Operator | Aug 2016 |
83 | Francis Energy Inc | | Oil & Gas Operator | May 2000 |
84 | Fritzler Resources, Inc. | Fort Morgan, CO 80701 | Oil & Gas Operator | Aug 2024 |
85 | Fundare Resources Operating Company LLC | | Oil & Gas Operator | Sep 2024 |
86 | Gadeco LLC | | Oil & Gas Operator | Oct 2024 |
87 | Geotech Production Inc | Centennial, CO 80016 | Oil & Gas Operator | Jun 2020 |
88 | Goodwin Energy Management LLC | | Oil & Gas Operator | Dec 2022 |
89 | Great Western Operating Company LLC | | Oil & Gas Operator | Aug 2022 |
90 | Griffin Management LLC | | Oil & Gas Operator | Feb 2010 |
91 | Grizzly Operating LLC | Houston, TX 77057 | Oil & Gas Operator | Oct 2024 |
92 | Grynberg* Jack Dba Grynberg Petroleum Co | | Oil & Gas Operator | Jan 2023 |
93 | H & M Petroleum Corporation | Lincoln, NE 68516 | Oil & Gas Operator | Sep 2024 |
94 | H & R Well Services, Inc. | FT Morgan, CO 80701 | Oil & Gas Operator | Apr 2015 |
95 | Harsh International Inc | | Oil & Gas Operator | Dec 2013 |
96 | Helena Resources Inc | Lakewood, CO 80215 | Oil & Gas Operator | Oct 2024 |
97 | Highpoint Energy LLC | | Oil & Gas Operator | Nov 2022 |
98 | Hilcorp Energy Company | Houston, TX 77208 | Oil & Gas Operator | Dec 2024 |
99 | Homestead Oil Inc | | Oil & Gas Operator | Jan 2018 |
100 | HRM Resources II, LLC | Denver, CO 80202 | Oil & Gas Operator | Jan 2022 |