Vienna - The price for oil produced by the Organization of the Petroleum Exporting Countries (OPEC) moved up slightly to 39.53 dollars Monday, the Vienna-based organization announced Tuesday.

One barrel (159 litres) of OPEC-produced crude oil gained 0.36 dollars Monday, climbing for the third day in a row.

OPEC calculates a basket price based on 12 brands produced by its members. (dpa)