. National oil and gas companies are
the main exploiters of oil and gas in the Middle East, Latin America and Russia, where the …, the main countries with gas deposits are Russia (30,5% of the world total gas reserves),
Iran (14,8%), Qatar (9 … Arab Emirates (8,1%), Kuwait (8,0%), Iran (7,4%), Venezuela (6,4%), Russia
(4,9%), with the remaining 19,5% shared among …