Vienna  - The price for crude oil produced by the Organization of the Petroleum Exporting Countries (OPEC) rose only slightly on Thursday, OPEC announced Friday.

One barrel (159 litres) of OPEC-produced crudes stood at 118.77 dollars on Thursday, 0.21 dollars higher than the previous day.

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