Tanzania Reserves

Since the Songo Songo field commenced commercial operations in July 2004 there has been a steady increase in audited reserves that can be attributed to sustained excellent reservoir performance, additional seismic to improve structural mapping, revised depth conversion methodology and information gained from well SS-10 drilled by Orca in 2007 and providing the first comprehensive suite of well data on the field in 25 years.

In accordance with National Instrument 51-101 Standards of Disclosure for Oil and Gas Activities, the independent petroleum engineers, McDaniel, prepared a report dated April 2012 that assessed the Orca Exploration natural gas reserves based on information on the Songo Songo Field and Songo Songo North as at 31 December 2011. Orca management estimates that the total recoverable Mid Case reserves (Protected Gas and Additional Gas) from the Songo Songo Field and the Songo Songo North discovery is 1,079 Bcf at 31 December 2011. For more information see pages 23-25 in the Orca Exploration Group 2011 Annual Report or go to the complete NI-51-101 Orca Exploration Group filings available on SEDAR.