Zanganeh told reporters on Saturday that Iran is currently not receiving any money for exporting gas to Turkey, because a court ruling has forced Tehran to give Ankara a partial refund following a lengthy legal dispute, Tasnim News Agency reported.
Turkey had called for a 62.5 percent decrease in the price of gas it imported from Iran five years ago, but the International Court of Arbitration ruled that the price reduction should stand at 13 percent, the minister added.
Zanganeh elaborated that Iran incurred the debt based on the court ruling and, thus, is not currently being paid by Turkey for gas.
Turkey had brought a case to the International Court of Arbitration against Iran in 2012, claiming that the gas price was too high.
Iran is Turkey's second supplier of gas after Russia meeting one-fifth of the country's consumption. Azerbaijan is another supplier.