Oil rose on Friday on expectations that OPEC and its allies would agree to cut output next month but prices remained down on the week on concerns that the global market was oversupplied.
Brent was up $1.36 at $67.98 a barrel by 1443 GMT.
The global benchmark looked set for a third day of gains since hitting an eight-month low on Tuesday, but was down more than 3 per cent on last week's close.
US light crude was up 98 cents at $57.44 after its steepest one-day loss in more than three years on Tuesday.
Ministers from the Organization.