Iran's Opec governor Mohammad Ali Khatibi has said the organisation's surplus capacity is keeping the price of crude down, but oil prices are likely to rise to $80 by the end of the year, Reuters has reported. Total supply from Opec countries was 29.10 million barrels per day (bpd) in June, according to a survey of oil firms, Opec officials and analysts. Khatibi said he saw demand for Opec crudes in the second half of 2010 at "more than 30 million barrels".