Iran 's finance minister tells reporters that oil prices could rise as high as $ 160 a barrel . Shamseddin Hosseini told CNN 's `` Fareed Zakaria GPS '' in an interview that airs Sunday . `` Indeed , it is difficult . ` ` is assured there will be a considerable increase , '' the minister says . The head of the U.N. 's nuclear watchdog agency is heading to Iran for talks . G8 leaders urge Iran to cooperate with NATO .
Iran 's finance minister tells reporters that oil prices could rise as high as $ 160 a barrel . ` ` is assured there will be a considerable increase , '' the minister says . The head of the U.N. 's nuclear watchdog agency is heading to Iran for talks . G8 leaders urge Iran to cooperate with NATO .