’s gasoline inventories rose to a record high for a second month as refiners in the world’s second-largest oil consumer faced losses on exports. Stockpiles of the motor fuel increased by 0.69 percent in April from a month earlier, China Oil, Gas & Petrochemicals, a newsletter published by the official Xinhua News Agency, said in an e-mail today. Supplies are estimated at 7.53 million metric tons, or 63.8 million barrels, the most since Bloomberg started compiling the data in January 2010. Refiners including China Petrochemical Corp. and PetroChina Co. are building inventories amid weak domestic demand, according to ICIS-C1, a Shanghai-based commodities researcher. Gasoline-export margins averaged minus 366 yuan ($58.70) a ton in the first four months of this year, said Chen Li, an ICIS analyst in Guangzhou. China exported a net 308,030 tons of the motor fuel in April, data from the General Administration of Customs in Beijing […]