Lesotho Exports of bitumen and asphalt (natural), bituminous or oil shale, tar sands to Norway was US$54 during 2021, according to the United Nations COMTRADE database on international trade. Lesotho Exports of bitumen and asphalt (natural), bituminous or oil shale, tar sands to Norway - data, historical chart and statistics - was last updated on May of 2024.