May 5 : Saudi Arabia has set the June Arab Light crude oil official selling price to Asia at $15.50 a barrel above the Oman/Dubai average, down from the previous month, Saudi Aramco said in a statement on Tuesday. The OSP premium for the previous month was $19.50 a barrel. The cut came almost in line with a Reuters survey of industry sources last month which said Saudi Arabia might cut its official June OSP to Asia from record levels as spot premiums eased and as demand cooled after weeks of