Oil prices edged lower on Tuesday after Kuwait said it would only agree to an output freeze if all major producers take part and Goldman Sachs analysts poured cold water over the prospects for a sustained rally. Brent crude futures LOCc1 were down 12 cents at $40.72 a barrel at 0922 GMT, hovering above the $40 mark it last traded at three months ago. On Monday the contract had climbed by 5.5 percent in intra-day trading and it has gained about 50 percent since Jan. 20. U.S. West Texas Intermediate (WTI) futures were down 10 cents at $37.80 a barrel. “Prices are lower on the Goldman Sachs and Kuwaiti comments and the oil market remains oversupplied,” said Tamas Varga, oil analyst at […]