A drill rig under construction is seen at an offshore island in the northern Caspian Sea, part of the Kashagan oilfield, October 11, 2012. Up to 12 billion barrels of oil, enough to supply the world for four months, lie in wait beneath Kazakhstan’s portion of the Caspian Sea, to be extracted by the consortium that includes ExxonMobil, Shell and Eni. But some in the seven-member development consortium are wondering whether they will be able to recoup their investment in the western Kazakh oil field before the current Production Sharing Agreement expires in 2041. Picture taken October 11, 2012. REUTERS/Robin Paxton (KAZAKHSTAN – Tags: ENERGY BUSINESS CONSTRUCTION) NUR-SULTAN, Sept 16 (Reuters) – Kazakhstan’s vast Kashagan oilfield, where production sharply declined following an emergency gas release last month, will resume output at usual levels “in October at best”, Kazakh Energy Minister Bulat Akchulakov told Reuters on Friday. Production at Kashagan, […]