World Natural gas - proved reserves

Natural gas - proved reserves: 172 trillion cu m (1 January 2006 est.)

Year	Natural gas - proved reserves	Percent Change	Date of Information
2003	161,200,000,000,000		January 2002 est.
2004	161,200,000,000,000	0.00 %	1 January 2002
2005	161,200,000,000,000	0.00 %	1 January 2002
2006	174,600,000,000,000	8.31 %	1 January 2002
2007	172,800,000,000,000	-1.03 %	1 January 2005 est.
2008	172,000,000,000,000	-0.46 %	1 January 2006 est.

Definition: This entry is the stock of proved reserves of natural gas in cubic meters (cu m). Proved reserves are those quantities of natural gas, which, by analysis of geological and engineering data, can be estimated with a high degree of confidence to be commercially recoverable from a given date forward, from known reservoirs and under current economic conditions.

Source: CIA World Factbook - Unless otherwise noted, information in this page is accurate as of May 16, 2008

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