Oil prices have climbed after a series of air strikes were carried out by coalition forces against Libya.
Brent crude rose $US2 to $116.19 a barrel, while US light crude rose $2.13 to $103.20, before slipping slightly.
Libya is the world's twelfth-largest oil producer and there are concerns about the damage the conflict may do to its facilities, the BBC reports.
Oil prices have been volatile as markets have dealt with a number of issues including the Japan earthquake.
