Asia gasoil advanced for the eighth week, the longest rising streak since 2005, as crude costs climbed. Naphtha posted its biggest weekly gain since July 2009. Light Distillates Open-specification naphtha for delivery to Japan increased 8.3 percent to $949 a metric ton, the biggest weekly gain since July 24, 2009, according to data compiled by Bloomberg. Benchmark 92-RON gasoline for loading from Singapore rose 8.7 percent to $117.15 a barrel, the biggest gain since October 2009. Gasoline’s premium to naphtha jumped to $13.40 a barrel from $12.10 on Feb 18. A wider reforming margin means the profit from turning naphtha into gasoline is increasing. The premium of Japan-delivered naphtha to Brent crude, or the crack spread, climbed to $100.29 a ton from $98.94 at the end of Asian trading on Feb. 18, according to Bloomberg data. BP Plc bought 50,000 barrels of 92-RON gasoline loading March 17 to March 21 from PetroChina Co. at $117.40 a barrel, traders said. BP bought a similar 92-RON cargo from Trafigura Beheer BV at $117 a ton. Middle Distillates Gasoil, or diesel, with 0.5 percent sulfur, increased $7.95, or 6.9 percent, this week to $124.05 a barrel, according to data compiled by Bloomberg. Prices gained for the eighth week, the longest rally since July 2005. Jet fuel rose $8.10, or 6.8 percent, from last week to $127. In Singapore, Vitol Group bought 150,000 barrels of 0.5 percent sulfur gasoline from Royal Dutch Shell Plc at 40 cents a barrel below benchmark quotes, traders said. That’s the biggest discount since Feb. 9. Gasoil’s premium to Dubai crude rebounded 81 cents to $16.40 a barrel at 6 p.m. Singapore time, according to PVM Oil Associates, a broker. This crack spread, a measure of refining profit, was down for a second week. Jet fuel’s premium to gasoil declined for the third day, losing 25 cents to $2.20 a barrel, PVM said. A narrowing regrade indicates aviation fuel is less profitable than diesel. Fuel Oil Asian benchmark fuel oil dropped the most in nine months today. The price of 180-centistoke fuel oil fell 4.1 percent, the most since May 21, to $641.75 a ton, according to data compiled by Bloomberg. The price of 380-centistoke fuel oil, mainly used as marine fuel, decreased 3.6 percent to $633.25 a ton. The benchmark fuel oil’s discount to Dubai crude, or crack spread, narrowed to $8.44 a barrel from $9.88 a barrel yesterday, Bloomberg data showed. The premium of 180-centistoke fuel oil to 380-centistoke grade, or the viscosity spread, fell $3.5 to $8.50 a ton, the lowest since Jan. 31. Itochu Corp. sold two cargoes of 20,000 tons of 180- centistoke fuel each to Vitol Group at $7 a ton over Singapore fuel oil assessments for loading from March 12 to March 16, said two traders. To contact the reporters on this story: Ann Koh in Singapore at akoh15@bloomberg.net; Yuji Okada in Tokyo at yokada6@bloomberg.net; Yee Kai Pin in Singapore at kyee13@bloomberg.net

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