Kolyma has reserves of natural resources.
Kolyma . There are rich reserves of gold , silver , tin , tungsten , mercury , copper , antimony , coal , oil , and peat . Twenty-nine zones of possible oil and gas accumulation have been identified in the Sea of Okhotsk shelf . Total reserves are estimated at 3.5 billion tons of equivalent fuel , including 1.2 billion tons of oil and 1.5 billion m3 of gas . Tungsten . A hard , rare metal under standard conditions when uncombined , tungsten is found naturally on Earth almost exclusively in chemical compounds .