(AGI) Singapore, Sept 12 - Oil prices closed higher on Asianmarkets on Friday over concerns Western air strikes in Syriamight open another front with Russia. U.S. crude rose 19 centsto 93.02 dollars a barrel. London's Brent gained 2 cents to98.10 dollars a barrel. The week was characterised by lowerprices because of an expected drop in demand, which is nowoffset by increasing political tensions. (AGI) . .