1 | Abraxas Petroleum Corporation | San Antonio, TX 78259 | Oil & Gas Operator | Dec 2024 |
2 | Agate Petroleum, Inc. | Tulsa, OK 74119 | Oil & Gas Operator | Mar 2015 |
3 | Amerada Hess Corporation | Houston, TX 77252 | Oil & Gas Operator | Aug 2013 |
4 | American Oil & Gas, Inc. | | Oil & Gas Operator | Nov 2010 |
5 | Anschutz Exploration Corporation | Denver, CO 80202 | Oil & Gas Operator | Dec 2024 |
6 | Apex Energy, L.L.C. | Tulsa, OK 74114 | Oil & Gas Operator | Sep 2024 |
7 | Arsenal Energy USA Inc. | | Oil & Gas Operator | Aug 2016 |
8 | Baytex Energy USA LLC | Denver, CO 80202 | Oil & Gas Operator | Nov 2014 |
9 | Baytex Energy USA LTD | | Oil & Gas Operator | Sep 2014 |
10 | Berco Resources LLC | Denver, CO 80206 | Oil & Gas Operator | Sep 2009 |
11 | Berco Resources, Inc. | Denver, CO 80202 | Oil & Gas Operator | Feb 2002 |
12 | Bill Barrett Corporation | Denver, CO 80202 | Oil & Gas Operator | Dec 2017 |
13 | Bowers Oil & Gas, Inc. | Grand Junction, CO 81505-1097 | Oil & Gas Operator | Nov 2022 |
14 | Bowline Energy LLC | Denver, CO 80201 | Oil & Gas Operator | Dec 2022 |
15 | Brigham Oil & Gas, L.P. | Austin, TX 78730 | Oil & Gas Operator | Oct 2015 |
16 | Broschat Engineering & Management Services, Inc. | | Oil & Gas Operator | May 2017 |
17 | Bruin E&P Operating, LLC | | Oil & Gas Operator | Oct 2021 |
18 | Bta Oil Producers | Midland, TX 79701 | Oil & Gas Operator | Sep 2009 |
19 | Bta Oil Producers, LLC | Midland, TX 79701 | Oil & Gas Operator | Dec 2024 |
20 | Burnett Energy Inc. | | Oil & Gas Operator | Oct 2024 |
21 | Burnett Oil Co Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2024 |
22 | Camwest II LP | McKinney, TX 75070 | Oil & Gas Operator | Jul 2007 |
23 | Chaco Energy Company | Denver, CO 80201 | Oil & Gas Operator | Oct 2024 |
24 | Chesapeake Operating, Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Aug 2024 |
25 | Citation Oil & Gas Corp. | Houston, TX 77269 | Oil & Gas Operator | Dec 2024 |
26 | Cobra Oil & Gas Corporation | Wichita Falls, TX 76307 | Oil & Gas Operator | Dec 2024 |
27 | Condor Petroleum, Inc. | Denver, CO 80202 | Oil & Gas Operator | Jun 2019 |
28 | Continental Resources, Inc. | Oklahoma City, OK 73126 | Oil & Gas Operator | Dec 2024 |
29 | Cotton Petroleum Corporation | Tulsa, OK 74102 | Oil & Gas Operator | Jan 2005 |
30 | Crescent Point Energy Us Corp | Denver, CO 80202 | Oil & Gas Operator | Apr 2024 |
31 | D90 Energy, LLC | Austin, TX 78746 | Oil & Gas Operator | Dec 2024 |
32 | Dakota Crude, Inc. | | Oil & Gas Operator | Oct 2024 |
33 | Denbury Onshore, LLC | Plano, TX 75024 | Oil & Gas Operator | Dec 2024 |
34 | Depco Inc. | Denver, CO 80202 | Oil & Gas Operator | Apr 2014 |
35 | Dominion Oklahoma Texas Expl & Prod Inc | Oklahoma City, OK 73134 | Oil & Gas Operator | Aug 2013 |
36 | Donald C. Slawson | | Oil Operator | Jun 1985 |
37 | Eagle Operating Inc | Minot, ND 58701 | Oil & Gas Operator | Oct 2024 |
38 | Earl Schwartz Co. | | Oil & Gas Operator | Oct 1989 |
39 | Eland Energy Inc | Dallas, TX 75248 | Oil & Gas Operator | Sep 2024 |
40 | Emerald Oil, Inc | | Oil & Gas Operator | Dec 2016 |
41 | Encore Energy Partners Operating LLC | Houston, TX 77057 | Oil & Gas Operator | Apr 2015 |
42 | Encore Operating LP | Plano, TX 75024 | Oil & Gas Operator | Oct 2024 |
43 | Enduro Operating LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2018 |
44 | Enerplus Resources USA Corporation | Denver, CO 80202 | Oil & Gas Operator | Oct 2024 |
45 | Ensign Operating Co. | Denver, CO 80202 | Oil & Gas Operator | Jan 2004 |
46 | EOG Resources Inc | Midland, TX 79702 | Oil & Gas Operator | Dec 2024 |
47 | Equinor Energy LP | Austin, TX 78730 | Oil & Gas Operator | Oct 2021 |
48 | Evertson Operating Company Inc | Kimball, NE 69145 | Oil & Gas Operator | Nov 2022 |
49 | Farmers Union Central Exchange, Inc. | | Oil & Gas Operator | May 1983 |
50 | Flying J Oil & Gas Inc | North Salt Lake, UT 84054 | Oil & Gas Operator | Dec 2009 |
51 | G3 Operating, LLC | | Oil & Gas Operator | May 2013 |
52 | Gadeco LLC | | Oil & Gas Operator | Oct 2024 |
53 | Galaxy Oil | | Oil & Gas Operator | Oct 2024 |
54 | Galaxy Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Mar 2015 |
55 | Getty Oil Company | Hays, KS 67601 | Oil & Gas Operator | Mar 2015 |
56 | Grayson Mill Operating, LLC | Houston, TX 77024 | Oil & Gas Operator | Oct 2024 |
57 | Gulf Oil Corp. | Denver, CO 80201-0599 | Oil & Gas Operator | Dec 2014 |
58 | H & R Well Services, Inc. | FT Morgan, CO 80701 | Oil & Gas Operator | Apr 2015 |
59 | Hardy Salt Co. | | Oil & Gas Operator | Apr 1986 |
60 | Headington Oil Company LLC | Dallas, TX 75204 | Oil & Gas Operator | Apr 2016 |
61 | Hess Bakken Investments II, LLC | | Oil & Gas Operator | Oct 2024 |
62 | Hess Corporation | Houston, TX 77010 | Oil & Gas Operator | Aug 2017 |
63 | HRC Operating, LLC | Denver, CO 80202 | Oil & Gas Operator | Nov 2017 |
64 | Hunt Energy Corporation | | Oil & Gas Operator | Feb 2002 |
65 | Hunt Oil Company | Dallas, TX 75201 | Oil & Gas Operator | Dec 2024 |
66 | Hunt Petroleum (Aec), Inc. | Dallas, TX 75201 | Oil & Gas Operator | Nov 2008 |
67 | Investors Oil, Inc. | | Oil Operator | Mar 1985 |
68 | Jenex Operating Company | The Woodlands, TX 77380-164280209 | Oil & Gas Operator | May 2019 |
69 | Journey Operating, L.L.C. | Sugar Land, TX 77496 | Oil & Gas Operator | Aug 2006 |
70 | Kaiser-Francis Oil Company | Tulsa, OK 74121 | Oil & Gas Operator | Dec 2024 |
71 | Kerr-McGee Oil & Gas Onshore LP | Houston, TX 77046 | Oil & Gas Operator | Dec 2024 |
72 | Kissinger Petroleum Corp | | Oil & Gas Operator | Nov 1983 |
73 | Koda Resources Operating, LLC | | Oil & Gas Operator | Oct 2024 |
74 | Kodiak Oil & Gas (USA) Inc. | Denver, CO 80202 | Oil & Gas Operator | Sep 2020 |
75 | Kraken Operating, LLC | Houston, TX 77024 | Oil & Gas Operator | Oct 2024 |
76 | Ladd Petroleum Corp. | Denver, CO 80202 | Oil & Gas Operator | Oct 2004 |
77 | Lamar Hunt | | Oil & Gas Operator | Oct 2003 |
78 | Lear Petroleum Exploration Inc | Dallas, TX 75206 | Oil & Gas Operator | Aug 1999 |
79 | Liberty Resources LLC | | Oil & Gas Operator | May 2014 |
80 | Liberty Resources Management Co LLC | Denver, CO 80202 | Oil & Gas Operator | Oct 2024 |
81 | Louisiana Land & Exploration Co. | Houston, TX 77210 | Oil & Gas Operator | Sep 2013 |
82 | Marathon Oil Company | Houston, TX 77024 | Oil & Gas Operator | Oct 2024 |
83 | Marshall & Winston, Inc. | Midland, TX 79710 | Oil & Gas Operator | Dec 2024 |
84 | Mbi Oil & Gas LLC | Dickinson, ND 58601 | Oil & Gas Operator | Oct 2024 |
85 | McRae & Henry LTD | Golden, CO 80401 | Oil & Gas Operator | May 2022 |
86 | Medicine Bow Operating Company | Houston, TX 77002 | Oil & Gas Operator | Apr 2014 |
87 | Mercury Resources LLC | | Oil & Gas Operator | Oct 2024 |
88 | Mid-Con Energy Operating, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | May 2020 |
89 | Missouri Basin Well Service, Inc. | Belfield, ND 58622 | Oil & Gas Operator | Jan 2018 |
90 | Murex Petroleum Corporation | Humble, TX 77347 | Oil & Gas Operator | Oct 2024 |
91 | Nance Petroleum Corporation | Billings, MT 59103-7168 | Oil & Gas Operator | Nov 2007 |
92 | Neptune Operating LLC | Houston, TX 77024 | Oil & Gas Operator | Oct 2024 |
93 | Newfield Production Company | The Woodlands, TX 77380-2764 | Oil & Gas Operator | Jul 2022 |
94 | Nexen Oil And Gas U.S.A. Inc. | Calgary, AB T2P 5C1 | Oil & Gas Operator | Feb 2010 |
95 | Nine Point Energy, LLC | | Oil & Gas Operator | Oct 2021 |
96 | North Plains Energy, LLC | | Oil & Gas Operator | Jan 2016 |
97 | Northern Pump Company | Denver, CO 80202-3130 | Oil & Gas Operator | Feb 2006 |
98 | Northwest Exploration Co | Salt Lake City, UT 84108-0900 | Oil & Gas Operator | Sep 1991 |
99 | Nucorp Energy, Inc. | | Oil & Gas Operator | Jan 1985 |
100 | Oasis Petroleum North America LLC | Houston, TX 77002 | Oil & Gas Operator | Oct 2024 |