Yemen Imports from Iran of Bitumen and Asphalt (Natural), Bituminous or Oil Shale, Tar Sands was US$4 Thousand during 2018, according to the United Nations COMTRADE database on international trade. Yemen Imports from Iran of Bitumen and Asphalt (Natural), Bituminous or Oil Shale, Tar Sands - data, historical chart and statistics - was last updated on October of 2026.