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   DOW JONES NEWSWIRES 
 

Aiming to supplement its drilling fleet in the harsh arctic environment, U.S. drilling giant Transocean Ltd (RIG) plans to acquire Norwegian drilling rig operator Aker Drilling ASA (AKD.OS) at a 62% premium to current valuation in a deal valued at $2.23 billion, Transocean said Monday.

Under the transaction, Transocean, which owned the rig at the center of last year's catastrophic U.S. Gulf of Mexico oil spill, has made a voluntary NOK26.50 ($4.83) per share cash offer for all outstanding shares in the company.

Transocean said Aker Capital AS, a wholly owned subsidiary of majority holder Aker ASA (AKER.OS), and other existing shareholders of Aker Drilling representing 60.5% of the outstanding shares have given their commitment to sell their shares to Transocean.

Transocean said the offer price represents a 62% premium to Aker Drilling's 30-day average price of NOK16.39 per share. The transaction will be funded using existing cash balances and debt facilities. Transocean is also assuming $800 million in Aker Drilling debt, lifting the total valuation of the deal to $2.23 billion.

Transocean said Aker Drilling would contribute about $1 billion in contract backlog and the company said the deal is expected to be "immediately accretive" its earnings. Aker operates two of the world's largest and most sophisticated deepwater drilling units and has two other ultra-deepwater drillships under construction in South Korea.

Transocean's most recent earnings plummeted 78% following lower utilization of its drilling fleet. The company continues to spar with BP PLC (BP) in the aftermath of last spring's Deepwater Horizon disaster which killed people and produced a massive oil spill. The accident has spurred lawsuits.

Morgan Stanley and Fearnley Fonds/Fearnley Offshore are acting as financial advisors to Transocean Services and Wikborg Rein is acting as legal advisor to Transocean Services.

Shares in Aker Drilling Monday shot up 95% higher to NOK26.00 following news of the offer.

-By Katarina Gustafsson, Dow Jones Newswires +46-8-5451-3097; katarina.gustafsson@dowjones.com

(Gustav Sandstrom contributed to this report)