By DPA,
Vienna : The price for crude oil produced by the Organization of the Petroleum Exporting Countries (OPEC) has risen, after dropping $4.89 over the course of last week, OPEC said Tuesday.
One barrel (159 litres) of OPEC-produced crude stood at $122.10 Monday, compared with $121.68 the previous Friday.
OPEC calculates an average basket price based on 13 important brands produced by cartel members.
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