Seadrill's Sevan Drilling Controlling Interest Agreed

Seadrill's mandatory offer to purchase all of the shares in Sevan Drilling ASA at NOK 3.95 per share has been accepted.

Seadrill has received acceptances of the Offer totalling 47,394 shares. At completion of the offer Seadrill will control 297,941,358 shares of Sevan, either through direct ownership or forward contracts, representing 50.11% of all issued shares of Sevan.

In accordance with the terms and conditions set out in the Offer Document, settlement according to the Offer will take place as soon as reasonably possible and no later than on September 5, 2013.

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