The average prices of gasoline and diesel both increased for the eleventh consecutive week.

According to the Korea National Oil Corporation(KNOC)’s price information system Opinet on Saturday, the average price of gasoline rose nine won on-week to one-thousand-662-point-two won per liter in the third week of December. 

The average price of diesel also rose nine-point-seven won to one-thousand-507-point-two won per liter. This marks the first time for the average price of diesel to surpass one-thousand 500 won since the fourth week of August.

International oil prices increased this week due to reports of China's stimulus measures for next year, as well as concerns of China's domestic situation.

An official at the KNOC said the price increase would continue next week, due to the South Korean won's weakening against the U.S. dollar.