1 | Ada Oil Exploration Corp | | Oil & Gas Operator | Jan 1986 |
2 | Adams Resources Expl. Corp. | Houston, TX 77001 | Oil & Gas Operator | Apr 2020 |
3 | Adobe Resources Corporation | Midland, TX 79701 | Oil & Gas Operator | Aug 2002 |
4 | Aegis Energy, Inc. | Lafayette, LA 70505 | Oil & Gas Operator | Sep 1998 |
5 | Alpine Expl. Companies, Inc. | | Oil & Gas Operator | Jan 2024 |
6 | Amarillo Oil Company | | Oil & Gas Operator | Aug 1980 |
7 | Amax Oil & Gas Inc | Fort Worth, TX 76107 | Oil & Gas Operator | Nov 2014 |
8 | Ambrit Energy Corporation | Garland, TX 75044 | Oil & Gas Operator | Jun 2003 |
9 | Amerada Hess Corporation | Houston, TX 77252 | Oil & Gas Operator | Aug 2013 |
10 | American Explorer, Inc. | Lafayette, LA 70505 | Oil & Gas Operator | Jan 1999 |
11 | Amoco Production Co. | Houston, TX 77253 | Oil & Gas Operator | Jun 2015 |
12 | Anderson Producing, Inc. | Houston, TX 77057 | Oil & Gas Operator | Sep 2013 |
13 | Annco Pet. Co & Equipment, Inc | | Oil & Gas Operator | Sep 1982 |
14 | Anr Pipeline Company | Houston, TX 77002 | Oil & Gas Operator | Jul 2024 |
15 | Apache Corporation | Houston, TX 77042 | Oil & Gas Operator | Dec 2024 |
16 | Apco Oil Corporation | | Oil & Gas Operator | Jun 1993 |
17 | Arco O & G Co-Div Atl Rich Co | | Oil & Gas Operator | Feb 1994 |
18 | Aroc (Texas) Inc | Houston, TX 77090 | Oil & Gas Operator | Dec 2014 |
19 | Aspect Energy, LLC | Denver, CO 80202 | Oil & Gas Operator | Dec 2024 |
20 | Aspen Exploration | | Oil & Gas Operator | Jan 1983 |
21 | Atinum Operating, Inc. | Houston, TX 77002 | Oil & Gas Operator | Dec 2024 |
22 | Austral Oil & Exploration, Inc | | Oil & Gas Operator | Jun 2004 |
23 | Austral Oil Company Incorporated | Sulphur, LA 70663 | Oil & Gas Operator | Mar 2008 |
24 | Azimuth Energy, LLC | Denver, CO 80203 | Oil & Gas Operator | Sep 2006 |