Oil extended losses in Asian trade today as investors' euphoria over a weekend deal for Spanish banks faded amid renewed concerns over the troubled eurozone. Expectations that the Organization of the Petroleum Exporting Countries, OPEC, will raise its production quota also pressured prices. New York's main contract, light sweet crude for delivery in July, was down 83 cents to 81.87 dollar a barrel, a level last seen in October. Brent North Sea crude for July delivery shed 82 cents to 97.18 dollar in morning trade