Iranian President Hassan Rouhani and Oil Minister Bijan Namdar Zangeneh “assured me that Iran will do everything possible in joining hands with members within the OPEC group as well as outside OPEC," Barkindo said in a Bloomberg Television interview in Rome on Tuesday.
"I am quite satisfied with the assurances" given during talks this month in Tehran, he said.
Barkindo paid an official visit to Tehran on September 6 and held separate meetings with President Rouhani and Zangeneh.
During the meetings, the Iranian officials stressed that the Islamic Republic supports any potential measures aimed at restoring stability to global oil markets, implying, however, that oil prices should be set at reasonable levels.
The Organization of Petroleum Exporting Countries (OPEC) will hold informal discussions on September 28 in Algiers.