proved natural gas reserves DOWN 1.8%
Worldwide proven natural gas reserves declined by 1.8% to 196,229 bcm as of December 31,2015 (-3,671 bcm).
Reserves are highly concentrated, with the Middle East holding 40% of worldwide proven reserves, followed by the CIS at 34%. OPEC countries control 47% of worldwide reserves and three countries (Russia, Iran and Qatar) account for 55% of global reserves. Finally, the top 10 reserves holders own 79% of the world's total reserves. Over the last decade, worldwide proven natural gas reserves grew by 22 trillion cubic meters (+13%). The largest regional reserves addition were posted by the CIS (+12 tcm), followed by the Middle-East.