General facts
Natural gas is formed from anaerobic (oxygenless) decay of organic substances (plant and animal remnants).
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In Bulgaria
The demand for natural gas in Bulgaria is relatively low - only about 3,4 billion cubic meters (bcm) for 2008
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In the world
As of January 1st, 2008 the proven natural gas reserves in the world amount to 6,138 trillion cubic meters (tcm).
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