The price for oil produced by the Organization of Petroleum Exporting Countries (OPEC) rose above $50 for one barrel (159 liters) of OPEC crude, the group announced Tuesday. The price hit $50.18 for a barrel, the group was quoted as saying by DPA. Last Friday, the price had been set at $48.77 per barrel. OPEC calculates a basket price based on 12 brands produced by its members.