1 | Abraxas Petroleum Corporation | San Antonio, TX 78259 | Oil & Gas Operator | Dec 2024 |
2 | Alpar Resources, Inc. | Perryton, TX 79070 | Oil & Gas Operator | Jul 2011 |
3 | Amax Petroleum Corporation | Houston, TX 77042 | Oil & Gas Operator | Dec 2012 |
4 | Apache Corporation | Houston, TX 77042 | Oil & Gas Operator | Dec 2024 |
5 | Berry Energy, Inc. | Clarksburg, WV 26301-2252 | Oil & Gas Operator | Dec 2021 |
6 | Bowers Oil & Gas, Inc. | Grand Junction, CO 81505-1097 | Oil & Gas Operator | Nov 2022 |
7 | Burlington Resources Oil And Gas Co. | Houston, TX 77210 | Oil & Gas Operator | Mar 2023 |
8 | Cenergy Exploration Company | Dallas, TX 75231 | Oil & Gas Operator | Sep 2000 |
9 | Cenex Inc. | | Oil & Gas Operator | Dec 1994 |
10 | Champlin Petroleum Co. | Rock Springs, WY 82902 | Oil & Gas Operator | Mar 1991 |
11 | Chevron USA Inc | Midland, TX 79706 | Oil & Gas Operator | Dec 2024 |
12 | Citation Oil & Gas Corp. | Houston, TX 77269 | Oil & Gas Operator | Dec 2024 |
13 | Clark Blake | | Gas Operator | Sep 2023 |
14 | Conquest Exploration Co. | | Oil & Gas Operator | Mar 1992 |
15 | Continental Resources, Inc. | Oklahoma City, OK 73126 | Oil & Gas Operator | Dec 2024 |
16 | Dekalb Energy Company | Oklahoma City, OK 73134 | Oil & Gas Operator | Oct 1996 |
17 | Depco Inc. | Denver, CO 80202 | Oil & Gas Operator | Apr 2014 |
18 | Eclipse Petroleum Corporation | La Grange, TX 78945 | Oil & Gas Operator | Aug 2003 |
19 | General Atlantic Resources Inc | Denver, CO 80202 | Oil & Gas Operator | Jan 2022 |
20 | Gulf Oil Corp. | Denver, CO 80201-0599 | Oil & Gas Operator | Dec 2014 |
21 | Harper Oil Co. | Denver, CO 80217 | Oil & Gas Operator | Aug 2024 |
22 | Hilliard Oil & Gas Inc | New Orleans, LA 70112 | Oil & Gas Operator | May 2001 |
23 | Houston Oil & Minerals Corp. | Houston, TX 77002 | Oil & Gas Operator | Aug 1996 |
24 | Inland Oil And Gas Corp. | | Gas Operator | Jun 2014 |
25 | Journey Operating, L.L.C. | Sugar Land, TX 77496 | Oil & Gas Operator | Aug 2006 |
26 | Kirkwood Oil And Gas Co. | | Oil Operator | Jan 1988 |
27 | Koch Exploration Company | Houston, TX 77046 | Oil & Gas Operator | Aug 2024 |
28 | Luff Exploration Company | Denver, CO 80203 | Oil & Gas Operator | Oct 2024 |
29 | Meridian Oil Inc. | Houston, TX 77210 | Oil & Gas Operator | Aug 1996 |
30 | Merit Energy Company | Dallas, TX 75240 | Oil & Gas Operator | Dec 2024 |
31 | Mosbacher Production Co. | Houston, TX 77001 | Oil & Gas Operator | Aug 1984 |
32 | Murex Petroleum Corporation | Humble, TX 77347 | Oil & Gas Operator | Oct 2024 |
33 | Nearburg Producing Company | Dallas, TX 75380 | Oil & Gas Operator | Dec 2024 |
34 | North Finn LLC | Casper, WY 82605 | Oil & Gas Operator | Oct 2024 |
35 | Ocean Energy Resources Inc. | Houston, TX 77002 | Oil & Gas Operator | Aug 2024 |
36 | Patrick Petroleum Co. | Jackson, MI 49201 | Oil & Gas Operator | Nov 1993 |
37 | Pawnee Oil Corp. | | Oil Operator | May 2003 |
38 | Petro-Lewis Corp. | | Oil & Gas Operator | Feb 1994 |
39 | Petroleum Inc | Wichita, KS 67202 | Oil & Gas Operator | Oct 2021 |
40 | Phillips Petroleum Company | Houston, TX 77251 | Oil & Gas Operator | Mar 2013 |
41 | Prima Exploration, Inc. | Denver, CO 80206 | Oil & Gas Operator | Oct 2024 |
42 | Ranger Oil Company | Canada, 00100 | Oil & Gas Operator | Sep 2001 |
43 | Remuda Energy Development LLC | Billings, MT 59104 | Oil & Gas Operator | Oct 2024 |
44 | Rim Operating, Inc. | Englewood, CO 80112 | Oil & Gas Operator | Dec 2024 |
45 | Sage Energy Company | San Antonio, TX 78215 | Oil & Gas Operator | Dec 2024 |
46 | Sands Oil Company Inc | Billings, MT 59103 | Oil & Gas Operator | Oct 2024 |
47 | Shell Oil Company | Houston, TX 77210 | Oil & Gas Operator | Apr 2015 |
48 | Snyder Oil Company | Fort Worth, TX 76102 | Oil & Gas Operator | Mar 2015 |
49 | Sohio Petroleum Co. | Casper, WY 82602 | Oil & Gas Operator | Apr 1986 |
50 | Solar Petroleum Inc | | Oil Operator | May 1983 |
51 | Spyglass Cedar Creek, LP | | Gas Operator | Jul 2012 |
52 | Total Minatome Corporation | Houston, TX 77210 | Oil & Gas Operator | Dec 1998 |
53 | Total Petroleum Inc | Denver, CO 80201-0500 | Oil & Gas Operator | Nov 2006 |
54 | Umc Petroleum Corporation | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
55 | Viable Resources | | Oil Operator | Dec 1984 |
56 | Webb Resources Inc | | Oil & Gas Operator | Dec 1985 |
57 | Wellstar Corporation | Northglenn, CO 80233 | Oil & Gas Operator | Oct 2024 |
58 | Westport Oil And Gas Company Inc | Denver, CO 80202 | Oil & Gas Operator | Feb 2002 |
59 | Woods Petroleum Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Mar 2015 |
60 | Wyoming Resources Corporation | Rapid City, SD 57702 | Oil & Gas Operator | Oct 2018 |
61 | Zenergy Operating Co. | | Oil & Gas Operator | Sep 2023 |