Oil prices dropped on Wednesday over the unexpected rise in the US crude inventories. The industry data revealed increment in the crude inventories, excluding some gains from the last session. Brent fell by 0.6%, to $60.95 a barrel. WTI went up by 0.8% and was traded at $56.64 a barrel. The crude inventories have surged to 443 million against the analyst expectations for a decrease of 2.8 million barrels.