Mandatory notification of trade

2/1/2013 1:39 AM EST

On 31. January 2013, Siem Offshore purchased 70 000 of 
its own shares in the market. The average price was 
NOK 8,20 per share.

The transaction is part of the share buy-back 
programme announced by the Company on 4. September 
2012. All shares purchased under this buy-back 
programme shall be cancelled. After this transaction 
the aggregate number of shares that have been 
purchased is 3 055 112 and the total number of Company 
shares in issue following a cancellation will be 392 
896 528.

For further information:
Terje Sørensen
Chief Executive Officer
Siem Offshore Inc.
Mobile phone: +47 91 31 61 64