Prometheus 6

Iran has in the past months been whittling down the proportion of dollars in its oil revenue income. Officials in October said that dollars accounted for only 15 percent of payments and predicted the amount would fall to zero.

However, the oil income is still being booked in dollars. 

Iran drops dollar from oil deals: report
10 hours ago

TEHRAN (AFP) — Major crude producer Iran has completely stopped carrying out its oil transactions in dollars, Oil Minister Gholam Hossein Nozari said on Saturday, labelling the greenback an "unreliable" currency.

"At the moment, selling oil in dollars has been completely halted, in line with the policy of selling crude in non-dollar currencies," Nozari was quoted as saying by the ISNA news agency.

"The dollar is an unreliable currency, considering its devaluation and the oil exporters' losses," he added.