Oil prices edged lower on Wednesday as a large, surprise build in US gasoline stocks and worries about the outlook for US interest rates next year outweighed easing supply concerns from a ceasefire deal between Israel and Hezbollah. Brent crude futures were down 42 cents, or 0.6 per cent, to $72.39 a barrel by 1:20pm ET (1820 GMT). US West Texas Intermediate crude slipped 51 cents, or 0.7pc, to