"Convergence among member-states of the Organization of Petroleum Exporting Countries (OPEC) has increased rather than being reduced," Zangeneh said.
Asked about launch of oil swap through Caspian Sea to Iran, the Iranian oil minister said that Iran is currently engaged in buying oil from Turkmenistan and Kazakhstan and Azerbaijan are willing to cooperate.
Regarding oil sales to Russia, he said, "We have no problem and that’s them who should take necessary measures."
In relevant remarks in late July, Zangeneh underlined that Asian and European companies were in talks about Iran’s oil and gas development projects which would potentially need $200 billion worth of investment.
He reiterated that Iran was already planning to absorb 65 percent to 70 percent of the amount from abroad.