Oil prices edged higher in quiet Asian trade today as dealers hunted bargains while keeping an eye on a supply glut in the United States. New York's main contract West Texas Intermediate for December delivery gained four cents to 94.66 US Dollars a barrel in mid-morning Asian trade, while Brent North Sea crude for December climbed nine cents to 106.32 Dollars . Crude inventories in the United States have climbed for the past six weeks, to about 28 million barrels, raising concerns about oversupply in the world's largest economy and top crude consumer.