Reuters | Oil dips on doubts over OPEC's ability to reduce inventories Reuters LONDON Oil eased on Tuesday, paring earlier gains, as doubts about OPEC's ability to reduce global crude inventories put the price on track for its six fall in seven days. Brent crude LCOc1 was down 3 cents at $51.57 a barrel by 1411 GMT, down from a ... Oil edges up after six days of straight losses Oil Prices Still Falling as Market Doubts Crude Glut Is Going Away Oil prices pare gains, held back by concerns over US production rebound |