High Quality Content by WIKIPEDIA articles! The natural gas in Qatar covers a large portion of the world supply of natural gas. According to Oil & Gas Journal, as of January 1, 2011, reserves of natural gas in Qatar were measured at approximately 896 trillion cubic feet (25.4 trillion cubic metres); this measurement means that the state contains 14% of all known natural-gas reserves, as the world`s third-largest reserves, behind Russia and Iran. The majority of Qatar`s natural gas is located in the massive offshore North Field, which spans an area roughly equivalent to Qatar itself. A part of the world`s largest non-associated, natural-gas field, the North Field, is a geological extension of Iran`s South Pars / North Dome Gas-Condensate field, which holds an additional 450 trillion cubic feet (13 trillion cubic metres) of recoverable natural-gas reserves.