Estonia has significant reserves of oil shale (more than 1 bln tons) and the country's national operator Eesti Põlevkivi extracts annually 15-16 mtpa of oil shale; at the Soviet time the shale production counted for about 50 mtpa in Estonia.
Being rich in oil shale Estonia is poor in other natural resources, including coal - it has no actual coalmines now; having large oil shale deposits in the area they didn't pay attention to coal geological survey in Estonia so now there are no coal reserves in Estonia.
Coal doesn't play significant role in the country's economy; two large power plants work in oil shale while most of the rest plants utilize natural gas and mazout - and thus Estonia imports only 150 ktpa of steam coal (mainly from Russia).
There are no crude steel mills in the country and thus Estonia doesn't import coking coal or coke.
Not being the influential coal producer or consumer, Estonia nevertheless plays an important role in coal transportation; its seaports are actively used for Russian coal export in EU, so coal makes the largest contribution in Estonia's export transit. The Russian coalminers own few coal terminals in Estonia's seaports.