Oman Exports of pebbles, gravel, flint, macadam of slag, tarred macadam to Yemen was US$42.13 Thousand during 2020, according to the United Nations COMTRADE database on international trade. Oman Exports of pebbles, gravel, flint, macadam of slag, tarred macadam to Yemen - data, historical chart and statistics - was last updated on May of 2024.