Iran will replace its long-time governor to the Organization of the Petroleum Exporting Countries (Opec), a source at Iran's oil ministry said on Tuesday.
Iran is the world's fourth-largest oil exporter and an oil price hawk within Opec.
Hossein Kazempour Ardebili is to be replaced as Iran's Opec governor by senior Iranian energy official Mohammad Ali Khatibi, the source said.
"We've heard in the ministry that Mr Kazempour will be replaced by Mr Khatibi," he said, adding that Kazempour would retire soon. "We've seen nothing in writing but we expect something to be announced in the next three to four days."
Kazempour declined to comment when contacted by Reuters.
The oil ministry source declined to say if the change would lead to any change in Iran's oil output policy.