State producer Saudi Aramco cut the Asia price by $4 a barrel to a $15.50 premium over regional benchmarks, after May's record-high premium.
The reduction was smaller than expected, with a Bloomberg survey of nine traders and refiners forecasting an $8-a-barrel cut in the official selling price.
Despite the cut, June pricing remains near historic highs as the war in the Middle East continues to severely disrupt oil supplies.
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