SDRL - Mandatory notification of trade

Hamilton, Bermuda, September 3, 2012 - Seadrill has settled a Total Return Swap agreement (TRS) expiring on September 3, 2012 with 2,000,000 common shares in Seadrill Limited as underlying security. Seadrill has subsequently entered into a new TRS agreement with exposure to 2,000,000 Seadrill Limited common shares. The expiry date for the new TRS is December 3, 2012 and the reference price is NOK242.793 per share.

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