Oil prices inched up on Monday following a strong session on Friday, as financial traders increased their bets on higher prices amid a slowdown in U.S. drilling, but analysts warned fundamentals remained weak. Front-month Brent crude futures (LCOc1) were trading at$57.89 a barrel by 0356 GMT (7.56 a.m. ET), up 2 cents since their last settlement, while U.S. crude (CLc1) was up 14 cents at $51.78. Many money investors are calling a bottom in oil prices, as speculators in U.S.