Mandatory notification of trades

Ronny Johan Langeland, Vice Chairman of BW Offshore Limited, yesterday purchased 75,000 shares in BW Offshore Limited ("BWO") at NOK 3.93 per share through his privately held company Nøvtun AS. Following this transaction, Mr. Langeland, directly and indirectly, holds 100,000 shares in BWO.

Knut R. Sæthre, CFO in BW Offshore, yesterday purchased 75,000 shares in BWO at NOK 4.11 per share.

Ståle Andreassen, SVP Finance in BW Offshore, yesterday purchased 300,000 shares in BWO at NOK 4.09 per share. Following this transaction, Mr. Andreassen holds 318,000 shares in BWO.

Ketil Eik, SVP Treasury in BW Offshore, yesterday purchased 150,000 shares in BWO at NOK 4.09 per share. Following this transaction, Mr. Eik holds 150,000 shares in BWO.

Kristian Flaten, VP IR & Corporate Finance in BW Offshore, yesterday purchased 21,861 shares in BWO at NOK 3.97 per share. Following this transaction, Mr. Flaten holds 50,000 shares BWO.

BW Offshore Limited has under a long term bonus scheme awarded 231,419 BWO shares to CEO Carl K. Arnet and 77,037 BWO shares to CFO Knut R. Sæthre at a price of NOK 4.02 per share. The price equals yesterday's volume weighted average price (VWAP). The shares will be restricted until 1 June 2013. The shares are transferred from BW Offshore's holding of treasury shares.

Following the above transactions, BW Offshore Limited will hold 2,450,198 own shares. Carl K. Arnet, directly and indirectly, will hold 6,503,558 shares in BWO. Knut R. Sæthre will hold 534,328 shares in BWO.

For further information, please contact:

Kristian Flaten, Vice President IR and Corporate Finance, +47 9509 2322

About BW Offshore:
BW Offshore is a leading global provider of floating production services to the oil and gas industry. BW Offshore is the world's second largest contractor with a fleet of 14 FPSOs and 1 FSO represented in all major oil regions world-wide. BW Offshore has a long track record on project execution and operations, as well as a robust balance sheet and strong financial capabilities. In more than 30 years of production, BW Offshore has executed 36 FPSO and FSO projects. The company is listed on the Oslo Stock Exchange. Further information is also available on www.bwoffshore.com

This information is subject of the disclosure requirements acc. to §5-12 vphl (Norwegian Securities Trading Act)