Oil prices ticked up in early Asian trading on Monday, firming up gains from last week when prices rose nearly 4% on the view that supply was tightening.
Brent crude oil futures for May delivery inched up 3 cents to $85.37 a barrel by 0045 GMT. The April contract for U.S. West Texas Intermediate (WTI) crude was up 10 cents to $81.14.
