Vienna - The price for crude oil produced by the Organization of the Petroleum Exporting Countries (OPEC) rose slightly but stayed below 110 dollars a barrel, data issued by OPEC showed on Thursday.

One barrel (159 litres) of OPEC-produced crude stood at 109.56 dollars Wednesday, an increase of 0.48 dollars from 109.08 dollars on the previous day.

OPEC calculates an average basket price based on 13 important brands produced by cartel members. (dpa)