Oil prices weakened in Asia this morning as investors remained cautious despite European leaders last week announcing a deal aimed at saving the euro zone.
US crude dropped 25 cents to $99.16 a barrel and Brent North Sea crude fell 39 cents to $108.23.
Global financial markets have been unsettled in recent weeks by worries over the euro zone's escalating debt crisis.
Friday's pact has led to hopes the European Central Bank will drop its reluctance to use its full arsenal against the crisis.
