1 | 31 Operating | | Oil & Gas Operator | Jul 2022 |
2 | 4-H Operating Corporation | | Oil & Gas Operator | Oct 2017 |
3 | 44 Canyon LLC | | Gas Operator | Mar 2006 |
4 | 8 North LLC | Denver, CO 80202 | Oil & Gas Operator | Feb 2024 |
5 | Abraxas Petroleum Corporation | San Antonio, TX 78259 | Oil & Gas Operator | Apr 2024 |
6 | Aceite Energy Corp | | Oil & Gas Operator | Feb 2007 |
7 | Advanced Wireless Communications LLC | Farmington, NM 87401 | Oil & Gas Operator | Feb 2024 |
8 | Advantage Resources Inc | Broomfield, CO 80020 | Oil & Gas Operator | Dec 2023 |
9 | Aec Oil & Gas USA Inc | Denver, CO 80202 | Oil & Gas Operator | May 2004 |
10 | Aeon Energy Corp | | Oil & Gas Operator | Feb 2024 |
11 | Alamosa Drilling Inc | Dallas, TX 75206-1841 | Oil & Gas Operator | Jan 2024 |
12 | Alan Howard Karchmer Living Trust | | Oil Operator | Dec 2022 |
13 | Alta Mesa Services, LP | Houston, TX 77084 | Oil & Gas Operator | Apr 2024 |
14 | American International Energy Corp | | Oil & Gas Operator | Oct 2003 |
15 | American Petroleum Energy Co | | Gas Operator | Feb 2024 |
16 | Amoco Production Co. | Houston, TX 77253 | Oil & Gas Operator | Jun 2015 |
17 | Anadarko E&P Onshore LLC | Houston, TX 77046 | Oil & Gas Operator | Apr 2024 |
18 | Anchor Bay Corporation | Denver, CO 80202 | Oil & Gas Operator | Jun 2007 |
19 | Andrikopoulos Resources* A G | | Oil & Gas Operator | Jul 2015 |
20 | Anschutz Exploration Corporation | Denver, CO 80202 | Oil & Gas Operator | Apr 2024 |
21 | Antara Resources Inc | Houston, TX 77002 | Oil & Gas Operator | Apr 2004 |
22 | Antelope Energy Company LLC | Denver, CO 80202 | Oil & Gas Operator | Feb 2024 |
23 | Antero Resources Piceance LLC | | Oil & Gas Operator | Dec 2012 |
24 | Antler Energy LLC | Baggs, WY 82321 | Oil & Gas Operator | Nov 2023 |
25 | Apache Corporation | Houston, TX 77056 | Oil & Gas Operator | Apr 2024 |
26 | Apex Oil Ventures Inc | | Oil & Gas Operator | Dec 2023 |
27 | Apollo Operating LLC | | Oil & Gas Operator | Sep 2013 |
28 | Arch Oil & Gas LLC | Dallas, TX 75248 | Oil & Gas Operator | Apr 2024 |
29 | Arco Permian, A Div Of Atlantic Richfield Company | | Gas Operator | Dec 2001 |
30 | Argali Exploration Company | | Gas Operator | Feb 2024 |
31 | Argonex Company LLC | | Oil & Gas Operator | Jan 2024 |
32 | Aries Operating, LLC | Houston, TX 77010 | Oil & Gas Operator | Feb 2010 |
33 | Ark Trust, Carol W Byrd Trustee | | Oil Operator | Feb 2024 |
34 | Arkoma Operations LLC | | Oil & Gas Operator | Jan 2024 |
35 | Armor Petroleum, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Apr 2024 |
36 | Arp Production Company, LLC | Fort Worth, TX 76116 | Gas Operator | Nov 2023 |
37 | Atlas Resources LLC Dba Atlas Rockies LLC | | Gas Operator | Jun 2017 |
38 | Augustus Energy Partners LLC | Billings, MT 59102 | Oil & Gas Operator | Feb 2014 |
39 | Augustus Energy Resources LLC | | Oil & Gas Operator | Jun 2018 |
40 | Aurora Power Resources, Inc. | Houston, TX 77042 | Oil & Gas Operator | Aug 2018 |
41 | Aus-Tex Exploration Inc | | Oil & Gas Operator | Jan 2024 |
42 | Ausmus & Clark Oil | | Oil Operator | Jul 2022 |
43 | Axia Energy LLC | Hghlands Ranch, CO 80129-2258 | Oil & Gas Operator | Jun 2016 |
44 | Axis Exploration LLC | Tulsa, OK 74119 | Oil & Gas Operator | Feb 2024 |
45 | Ballard Petroleum LLC | Billings, MT 59102-5406 | Oil & Gas Operator | Apr 2014 |
46 | Baney Well Service Inc | Denver, CO 80237 | Oil Operator | Jun 2016 |
47 | Barfield Oil Corporation | | Oil & Gas Operator | Mar 2001 |
48 | Barrett Corporation* Bill | | Oil & Gas Operator | Jan 2024 |
49 | Barrett Resources Corporation | Denver, CO 80202 | Oil & Gas Operator | Sep 2004 |
50 | Basin Exploration Inc | Denver, CO 80202 | Oil & Gas Operator | Sep 2004 |
51 | Bass Enterprises Production Co | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2006 |
52 | Bataa Oil Inc | Greeley, CO 80634 | Oil & Gas Operator | Feb 2024 |
53 | Bates* James Edward | | Oil & Gas Operator | Jul 2017 |
54 | Bayhorse Petroleum LLC | | Oil Operator | Dec 2016 |
55 | Bayless Producer LLC* Robert L | | Oil & Gas Operator | Feb 2024 |
56 | Bayswater Exploration & Production LLC | Denver, CO 80202 | Oil & Gas Operator | Jan 2024 |
57 | Beartooth Oil & Gas Company | Billings, MT 59103 | Oil & Gas Operator | Feb 2024 |
58 | Becca Oil LLC | Cushing, OK 74023-1347 | Oil & Gas Operator | Jan 2024 |
59 | Beeman Oil & Gas LLC | | Oil & Gas Operator | Feb 2024 |
60 | Belco Energy Corp. | Dallas, TX 75231 | Oil & Gas Operator | Mar 2015 |
61 | Benchmark Energy LLC | Pratt, KS 67124 | Oil & Gas Operator | Sep 2023 |
62 | Benchmark Oil & Gas Corp | Denver, CO 80202 | Oil & Gas Operator | Dec 2016 |
63 | Benson-Montin-Greer DRLG Corp | Farmington, NM 87402 | Oil & Gas Operator | Feb 2024 |
64 | Bepco Operating Co. | Fort Worth, TX 76102 | Oil & Gas Operator | Oct 2006 |
65 | Beren Corporation | Wichita, KS 67206 | Oil & Gas Operator | Apr 2024 |
66 | Berenergy Corporation | Denver, CO 80217 | Oil & Gas Operator | Feb 2024 |
67 | Berexco LLC | Wichita, KS 67206 | Oil & Gas Operator | Apr 2024 |
68 | Berry Energy Inc*Walter | | Oil & Gas Operator | Feb 2017 |
69 | Berry Petroleum Company LLC | Bakersfield, CA 93311 | Oil & Gas Operator | Feb 2024 |
70 | Big Run Production Company | Tyler, TX 75701 | Oil & Gas Operator | Apr 2024 |
71 | Bison Energy Corporation | Wichita, KS 67206 | Oil & Gas Operator | Feb 2023 |
72 | Bison IV Operating LLC | | Oil & Gas Operator | Feb 2024 |
73 | Black Diamond Minerals LLC | | Oil & Gas Operator | Jun 2014 |
74 | Black Hills Exploration & Production Inc | Newcastle, WY 82701 | Oil & Gas Operator | May 2018 |
75 | Black Hills Plateau Production LLC | | Oil & Gas Operator | May 2018 |
76 | Black Raven Energy Inc | | Oil & Gas Operator | Apr 2017 |
77 | Blackrock Energy Corp | | Oil Operator | Jan 2024 |
78 | Blue & Gray Energy Inc | | Oil & Gas Operator | Jun 2011 |
79 | Blue Chip Oil Inc | | Oil & Gas Operator | Jan 2024 |
80 | Blue Creek Inc | | Oil & Gas Operator | Dec 2002 |
81 | Bonanza Creek Energy Operating Company LLC | | Oil & Gas Operator | Jan 2024 |
82 | Bonneville Fuels Corp | Denver, CO 80290 | Oil & Gas Operator | Jun 2002 |
83 | Booco'S Contract Services Inc | | Oil & Gas Operator | Jan 2021 |
84 | Bopco, L.P. | Midland, TX 79701 | Oil & Gas Operator | Apr 2024 |
85 | Boulder Oil Company | | Oil & Gas Operator | Sep 2004 |
86 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Dec 2023 |
87 | Bright & Company | The Colony, TX 75056 | Oil & Gas Operator | May 2015 |
88 | Bristol Resources Corporation | Tulsa, OK 74170 | Oil & Gas Operator | Feb 2022 |
89 | Brito Oil Co., Inc | Wichita, KS 67201 | Oil & Gas Operator | Dec 2009 |
90 | Brooks Exploration, Inc. | Denver, CO 80293 | Oil & Gas Operator | Mar 2001 |
91 | Brown Oil & Gas LLC | | Oil & Gas Operator | Jan 2024 |
92 | Bta Oil Producers | Midland, TX 79701 | Oil & Gas Operator | Sep 2009 |
93 | Burlington Resources Oil & Gas LP | | Oil & Gas Operator | Feb 2020 |
94 | Burr Oil & Gas Inc | Farmington, NM 87499 | Oil & Gas Operator | Oct 2019 |
95 | Byron Oil Industries Inc | Ballwin, MO 63011 | Oil & Gas Operator | Apr 2019 |
96 | C & J Field Services | | Oil & Gas Operator | Feb 2024 |
97 | Cabot Oil & Gas Corporation | Houston, TX 77024 | Oil & Gas Operator | Dec 2023 |
98 | Caerus Piceance LLC | | Oil & Gas Operator | Feb 2024 |
99 | Caerus Washco LLC | Denver, CO 80202 | Oil & Gas Operator | Feb 2024 |
100 | Calpine Natural Gas L.P. | Houston, TX 77002 | Oil & Gas Operator | Jan 2006 |