EXHIBIT 21

SUBSIDIARIES OF REGISTRANT

The registrant has the following subsidiaries:

Ÿ	Armada Oil and Gas, Inc., a Nevada corporation (subsidiary of Armada Oil, Inc.)
Ÿ	Armada Operating, LLC, a Texas limited liability company (subsidiary of Armada Oil, Inc.)
Ÿ	Mesa Energy, Inc., a Nevada corporation (subsidiary of Armada Oil, Inc.)
Ÿ	Mesa Midcontinent, LLC, a Texas limited liability company (subsidiary of Mesa Energy, Inc.)
Ÿ	Armada Midcontinent, LLC, an Oklahoma limited liability company (formerly known as MMC Resources LLC and a subsidiary of Mesa Energy, Inc.)