The oil price of the Organization of the Petroleum Exporting Countries shed $0.42 at the end of last week but held its ground above $82, OPEC reported Monday. OPEC's basket price settled at $82.86 per barrel (159 liters) Friday, floating above $81 for the tenth trading day. The 12 members of the Vienna-based Organization pump some 34 per cent of the world's crude oil.