Vienna - The price for crude oil produced by the Organization of the Petroleum Exporting Countries (OPEC) has kept stable below 99 dollars, data issued by OPEC showed on Thursday.

One barrel (159 litres) of OPEC crude inched downwards to 98.88 dollars Wednesday, 0.12 dollars lower than on the previous day.

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