On the 30th local time, the World Bank issued a warning that if the Palestinian-Israeli conflict continues to escalate and expand, it will seriously affect global crude oil supplies.。In the worst case, international oil prices could rise to close to $160 a barrel, breaking record highs and, in turn, pushing up food prices。The World Bank says international crude oil prices have so far risen about 6 percent since the new Palestinian-Israeli conflict broke out earlier this month。