1 | A. J. Hayes | | Oil & Gas Operator | Dec 1998 |
2 | A. L. & V. I. Grayson | | Oil Operator | Dec 1993 |
3 | A. S. Johnston Drilling Corp. | | Oil & Gas Operator | Dec 1987 |
4 | A.L.S. Resources Inc. | | Oil Operator | Dec 2004 |
5 | Aa Production Services Inc. | | Gas Operator | Aug 2024 |
6 | Aalpha Energy Inc. | | Oil & Gas Operator | Oct 2024 |
7 | Aba Energy Corporation | | Oil & Gas Operator | Sep 2024 |
8 | ABC Oil Co. | Wichita Falls, TX 76301 | Oil & Gas Operator | Oct 2023 |
9 | Adco LTD. | | Oil & Gas Operator | Dec 1983 |
10 | Aera Energy LLC | | Oil & Gas Operator | Sep 2024 |
11 | Agey Petroleum Co. | | Oil & Gas Operator | Dec 1998 |
12 | Alanmar Energy | | Gas Operator | Jan 2018 |
13 | Alexander Oil Company | Loco, OK 73442-9409 | Oil & Gas Operator | Aug 2024 |
14 | Allenco Energy Inc. | | Oil & Gas Operator | Aug 2024 |
15 | Allied Energy Corporation | | Oil & Gas Operator | Aug 2024 |
16 | Allied Western Petroleum | | Oil & Gas Operator | Aug 2024 |
17 | Almond Crest Oil LLC | | Oil & Gas Operator | Sep 2024 |
18 | Amerada Hess Corp. Unit Operator | | Oil & Gas Operator | Dec 1986 |
19 | Amerada Hess Corporation | Houston, TX 77252 | Oil & Gas Operator | Aug 2013 |
20 | American Barter Petroleum Inc. | | Oil & Gas Operator | Jun 1993 |
21 | Ample Resources Inc. | | Oil & Gas Operator | Aug 2024 |
22 | Amrich Energy Inc. | | Oil & Gas Operator | Dec 2022 |
23 | Anacapa Oil Corporation | | Gas Operator | Aug 2024 |
24 | Anadime Energy Services Inc. | | Oil & Gas Operator | Dec 2009 |
25 | Ancora-Verde Corporation | | Oil & Gas Operator | Dec 2004 |
26 | Andrew L. Newkirk | | Oil Operator | Aug 2024 |
27 | Angus Petroleum Corporation | Chicago, IL 60660 | Oil & Gas Operator | Dec 2022 |
28 | Ann Marie Tiers | | Oil Operator | Dec 1996 |
29 | Anschutz Exploration Corporation | Denver, CO 80202 | Oil & Gas Operator | Dec 2024 |
30 | Anterra Energy Services Inc. | | Oil & Gas Operator | Aug 2024 |
31 | Anterra Services Inc. | | Oil & Gas Operator | Aug 2024 |
32 | Apache Corporation | Houston, TX 77042 | Oil & Gas Operator | Dec 2024 |
33 | Apc Operating Partnership | Tulsa, OK 74136 | Oil & Gas Operator | Oct 1996 |
34 | Arcady Oil Company | | Gas Operator | Dec 1989 |
35 | Arco Oil & Gas Company | Plano, TX 75086 | Oil & Gas Operator | Mar 2006 |
36 | Arco Western Energy Co. | | Oil & Gas Operator | Dec 1999 |
37 | Argo Petroleum Corporation | | Oil & Gas Operator | Dec 1989 |
38 | Argosy Oil Company | | Gas Operator | Dec 1999 |
39 | Aristata Exploration Co. | | Gas Operator | Dec 2009 |
40 | Arkoma Production Company Of California | | Oil & Gas Operator | Dec 1993 |
41 | Armstrong Oil Inc. | | Oil & Gas Operator | Dec 2020 |
42 | Armstrong Petroleum Corporation | | Oil & Gas Operator | Aug 2024 |
43 | Arrowhead Operating Inc. | Argyle, TX 76226 | Oil & Gas Operator | Dec 2024 |
44 | Arthur J. Arding Jr. | | Gas Operator | Dec 1995 |
45 | Arthur McAdams | | Oil & Gas Operator | Aug 2024 |
46 | Ashe Road Properties L.P. | | Oil & Gas Operator | Dec 2009 |
47 | Asioco Inc. | | Oil & Gas Operator | Jan 2018 |
48 | Aspen Exploration Corporation | | Oil & Gas Operator | Dec 2007 |
49 | Asphalta LLC | | Oil & Gas Operator | Sep 2024 |
50 | Astarta Springs Sustainable Farms LLC | | Oil & Gas Operator | Aug 2024 |
51 | Atasca Resources Inc | Houston, TX 77219 | Oil & Gas Operator | Dec 2024 |
52 | Atlantic Oil Company | | Oil & Gas Operator | Aug 2024 |
53 | Atlantic Richfield Company | Plano, TX 75074 | Oil & Gas Operator | Dec 2016 |
54 | Austin Oil Company | | Oil & Gas Operator | Dec 2000 |
55 | Axis Petroleum Co. | | Oil & Gas Operator | Dec 2022 |