Russia Exports of coke, semi-coke of coal, of lignite, of peat; retort carbon to Oman was US$29.87 Thousand during 2019, according to the United Nations COMTRADE database on international trade. Russia Exports of coke, semi-coke of coal, of lignite, of peat; retort carbon to Oman - data, historical chart and statistics - was last updated on May of 2024.