The Leiv Eiriksson, one of the world’s largest rigs, makes its way crossing the Istanbul’s narrow Bosporus Strait to the Black Sea, in Istanbul, Turkey, Thursday, Dec. 31, 2009. The massive deepwater drilling rig forced Turkey to temporarily shut down one of the world’s busiest waterways. Leiv Eiriksson will begin oil and gas explorations off Turkey’s coast in the Black Sea in February. The Fatih Sultan Mehmet Bridge is seen in the background. (AP Photo/Ibrahim Usta)