Oil Search Limited (Oil Search) is an oil and gas exploration and development company operating in Papua New Guinea. As of December 31, 2011, Oil Search had 1P reserves of 330 million barrels of oil equivalent and 2P reserves of 553 million barrels of oil equivalent. Of these reserves, 301 million barrels of oil equivalent of 1P and 505 million barrels of oil equivalent of 2P were associated with the Company�s share of the PNG LNG Project. At the end of December 2011, the Company also had 318 million barrels of oil equivalent of contingent resources, comprising gas and associated liquids. During the year ended December 31, 2011, the Company�s total 2P reserves plus 2C resources were 870 million barrels of oil equivalent. Total oil and gas production, net to the Company, was 6.69 million barrels of oil equivalent in 2011. It has a 29% interest in the PNG LNG Project, operated by ExxonMobil, which commenced full construction in March 2010.