(EnergyAsia, October 17 2012, Wednesday) — The proposed costly multi-phase development of Turkmenistan’s giant South Iolotan (Galkynysh) project will be key to Central Asia’s emergence as a major natural gas supplier with the potential to export more than 120 billion cubic metres (bcm) by 2020, said consultant Wood Mackenzie. While regional energy powerhouses Turkmenistan, Kazakhstan…