Oil prices fell marginally below $105 following continued unrest in Yemen, a crude-exporting country.

US crude for May fell 6¢ to stand at $104.91 while Brent crude climbed 14¢ to $115.84 a barrel at 03.20 GMT, reports Reuters.

Yemeni protesters took to the streets demanding that President Ali Abdullah Saleh step down. The president warned that a civil war may begin if he is forced to quit.

According to a report by the American Petroleum Institute, US crude inventories increased by less than expected last week, and petrol stocks dropped significantly, despite a growth in both crude and product imports, and an increase in refinery run rates.