CNNMoney | UPDATE 12-Oil crashes 8 pct as Greek vote, Iran talks set off exodus Reuters Adding to the pressure on oil, Iran and global powers were trying to meet a July 7 deadline on a nuclear deal, which could bring more supply to the market if sanctions on Tehran are eased. The self-imposed deadline could be extended again, officials at ... Oil prices dive below $54 as Iran deal looms Oil tumbles 6 percent after Greek 'No' vote, ahead of Iran deadline Oil falls more than 3 percent after Greek 'No' | Reuters |