Exxon Mobil Corp., the largest oil company in the US, has approved with partners the development of a $15 billion liquefied natural gas (LNG) joint venture in Papua New Guinea, it has been announced. The joint venture will be the countryÔÇÖs biggest resource project, and will supply LNG to China, Japan and Taiwan. Irving, Texas-based Exxon and its Papua New Guinea partners will build a plant near Port Moresby, the nationÔÇÖs capital city, with the capacity to produce 6.6 million metric tons of LNG a year.