Brent crude oil prices rose to $118 per barrel, up about 2.5% on the day, due to a tanker attack and the possibility of further US strikes on Iran, sparking concerns about global supply. Meanwhile, the price of the main US benchmark, West Texas Intermediate (WTI) crude, was about $104 per barrel, up about 2%. Oil prices are on track for their fourth consecutive monthly gain. The World Bank warned that energy prices could reach a four-year high this year due to ongoing conflicts in the Middle East, with an expected increase of about one-third.