International crude oil prices closed slightly lower on Friday. On January 4th, the prices of refined oil products from local refineries in the Northwest region declined. The overall price of 92# gasoline ranged from 7,300 to 7,400 yuan per ton, while 95# gasoline prices were in the range of 7,400 to 7,500 yuan per ton. Diesel prices were quoted between 6,200 and 6,300 yuan per ton.