SINGAPORE, May 30 (Reuters) - Russian ESPO crude premium in July edged up to touch a two-month high on Wednesday on robust demand in Asia. * TENDERS - Russia's Rosneft is likely to have sold its only ESPO crude for July at about $4.50 a barrel above dated Brent, slightly higher than the $4-$4.40 premiums fetched in Surgut's tender earlier this week. Top Japanese refiner JX Nippon Oil & Energy Corp or an oil major may have bought the cargo, traders said. Asian refiners appear to have placed more aggressive bids to prevent the cargoes from heading to the U.S. West Coast, one of the traders said. - India's Bharat Petroleum Corp Ltd has bought 1 million barrels of Libyan Sarir crude from Japanese trader Marubeni in a tender, trade sources said. The refiner is likely to have bought the cargo for loading on July 21-31 at a discount of 20 cents a barrel to dated Brent, one of the sources said. * MARKET NEWS - Indonesia's state-owned oil firm Pertamina must purchase crude and fuel oil directly from primary sources, President Susilo Bambang Yudhoyono said. - Japan's crude imports from Iran fell 65.5 percent in April from a year earlier, ahead of deeper declines that may come from July due to the difficulty in doing business with the Islamic Republic as Western sanctions bite. - JX plans to refine 5.23 million kilolitres of crude oil in June for domestic consumption, up 16 percent from a year earlier, a company executive said. CRUDE Price Prev Change JULY Brent 105.60 107.71 -2.11 JULY Brent/Dubai EFS DUB-EFS-1M 3.27 3.42 -0.15 PRODUCT CRACKS Price Prev Change JUNE fuel oil crack -3.36 -3.97 0.61 JUNE gasoil crack 14.18 14.61 -0.43 JULY naphtha crack -11.02 -11.27 0.25 COMPLEX REFINERY MARGINS Today 7.16 Last 5 days 6.73 Last 365 days 7.53

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