Rosneft, ExxonMobil start Arctic campaign

US giant ExxonMobil and Russia's Rosneft have spudded an exploration well on the Arctic shelf in the Kara Sea.

Arctic spud: the semi-submersible West Alpha
Arctic spud: the semi-submersible West Alpha
Published 11 August 2014, 07:48Updated 11 October 2016, 15:46