Ministries adjust petroleum prices amid rising global prices. Today (January 19), the Ministry of Industry & Commerce and the Ministry of Finance lifted domestic gasoline prices for the second time this year due to the recent increases of global crude oil and petroleum prices. The average prices of RON 92 petro in Singapore, for the 15 day period from January 4 to 18, reached USD76.24/barrel, up 3.3% from the previous period.