Oil prices climbed on Monday, pushed higher by Saudi Arabia’s comment that cooperation between oil producers currently withholding supplies would continue beyond 2018.
Strong global economic growth and a drop in U.S. drilling activity also supported crude oil price, traders said.
Brent crude futures were at 68.89 dollars a barrel at 0315 GMT, up 25 cents, or 0.4 per cent from their last close.
Brent on Jan. 15 rose to 70.51 dollars, its highest since December 2014.
U.S. West Texas Intermediate (WTI) crude futures were at 63.61 dollars a barrel, up 24 cents, or 0.4 per cent, from their last settlement.