(EnergyAsia, May 19 2014, Monday)— US WTI benchmark crude could plunge by half to US$50 a barrel within the next 12 to 24 months as rising global supplies outweigh geopolitical risks and demand growth, said BofA Merrill Lynch. “We forecast average WTI crude oil prices of US$94 per barrel in 2014 and US$91 in 2015,…