Oil prices fell on Tuesday, extending losses into a third week, on worries over a supply glut and with U.S. inventory data expected to show another increase in crude stocks. Brent LCOc1 for December delivery had fallen 38 cents to $47.16 a barrel by 0701 GMT, after settling the previous session down 45 cents. U.S. crude CLc1 for December delivery dropped 53 cents to $43.45 a barrel, having ended the day before down 62 cents.