SINGAPORE, March 5 (Reuters) - The Asia-Pacific crude market softened on Monday after Russian ESPO crude fell on weaker middle distillates and fuel oil cracks. Russia's TNK-BP sold the one April-loading cargo to Japan's JX Holdings at a premium of around $5.50 a barrel to Dubai quotes, down from premiums of around $6 a barrel last seen for March parcels, a trader said. * MARKET NEWS - Russia, the world's top crude producer, rejected a Chinese request for more Siberian pipeline oil, saying the link is already pumping at full capacity and additional volumes are not available, two state energy industry sources told Reuters. - Malaysia's state oil firm Petroliam Nasional Bhd (Petronas) posted a 34 percent decline in third-quarter profit on Monday, saying the fall was mainly due to a one-off gain in 2010 from the listing of subsidiaries. - Iran's biggest Indian oil client, Mangalore Refinery and Petrochemicals Ltd (MRPL) MRPL.NS, plans to cut its annual import deal with Tehran by as much as 44 percent to 80,000 barrels per day (bpd) in 2012/13, two sources said, as western sanctions make trade more difficult. - Saudi Arabia has raised the price of its flagship Arab Light crude oil for customers in Asia, who buy more than half of its crude exports, by $1.25 a barrel for April, while cutting prices for its heavy crude for European buyers, state-run Saudi Aramco said on Sunday. CRUDE Price Prev Change APRIL Brent 123.49 125.26 -1.77 APRIL Brent/Dubai EFS DUB-EFS-1M 4.20 4.36 -0.49 PRODUCT CRACKS Price Prev Change APRIL fuel oil crack -5.41 -5.74 0.33 APRIL gasoil crack 14.77 14.96 -0.19 APRIL naphtha crack -6.82 -7.23 0.41 COMPLEX REFINERY MARGINS Today 7.45 Last 5 days 6.22 Lat 365 days 7.87

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