Answer :
Siberia is known to have the most accessible oil reserves. Sakhalin Island, in the Russian Far East has the most important oil reserves, and is rumored to have over 652,000,000 tons of oil.
the answer is Siberia and Sakhalin
hope this helps you!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
hope this helps you!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
