SDRL - Mandatory notification of trade

Hamilton, Bermuda, 1 November 2012 - Seadrill Limited ("Seadrill") has today acquired additional 18,500 shares of Asia Offshore Drilling Limited (the "Company", OSE: AOD). The shares were acquired at price NOK 28.71 per share. Following this acquisition, Seadrill will be the owner of 26,372,751 shares in the Company, corresponding to 65.93% of the total number of outstanding shares in the Company.

This information is subject of the disclosure requirements pursuant to section 5-12 of the Norwegian Securities Trading Act.