Seadrill Limited, has notified Hyundai Heavy Industries Co Ltd. ("the Shipyard") that it has exercised its right to cancel the contract for the construction of the West Mira, a sixth generation ultra-deepwater harsh environment semisubmersible drilling unit ("West Mira" or "the Unit").

The Unit was ordered during the second quarter of 2012 and the delivery date stated in the construction contract was by December 31, 2014. Due to the Shipyard's inability to deliver the Unit within the timeframe required under the contract, the Company has exercised its cancellation rights.

Under the contract terms, Seadrill has the ability to recoup the $168 million in pre-delivery instalments to the Shipyard, plus accrued interest.

In the fourth quarter of 2012 Seadrill was awarded a 5 year contract for the West Mira with Husky Oil Operations Limited ("Husky") for operations in Canada and Greenland. As stated in the Company's second quarter earnings report, due to the late delivery of the Unit, the Company had tentatively agreed with Husky to reduce the dayrate of the West Mira drilling contract. Seadrill remains in discussions with Husky to find an alternative solution to meet its drilling requirements.

About Seadrill

Seadrill is a leading offshore deepwater drilling company, aiming to be our customers' most important partner in making oil and gas available in a safe and cost-effective manner.

The company operates a versatile fleet of 69 units that comprises drillships, jack-up rigs, semi-submersible rigs and tender rigs for operations in shallow to ultra-deepwater areas in harsh and benign environments.