Oil prices rose more than 2 percent in early trading on Monday after Israel ordered troops to move further into Lebanon in the battle with the Iranian-backed Hezbollah militant group, despite a ceasefire announced more than six weeks ago.
U.S. crude futures rose $2.37 or 2.71 per cent to $89.73 a barrel as of 1017 GMT. Brent futures rose $2.07 or 2.27 per cent to $93.19 a barrel.
Brent and WTI had fallen 1.8 per cent and 1.7 per cent, respectively, on Friday on expectations that the U.S. and Iran had reached a ceasefire agreement.