The price for crude oil produced by the Organization of the Petroleum Exporting Countries (OPEC) jumped more than six dollars on Friday, OPEC said in a statement on Monday.
One barrel (159 litres) of OPEC-produced crude stood at 139.85 dollars Friday, up 6.17 dollars from 133.68 dollars on the previous day, reported dpa.
On Friday, the OPEC oil price regained much of the value lost since the July 3 record of 140.73 dollars per barrel.
OPEC calculates an average basket price based on 13 important brands produced by cartel members.