Natural

According to BP (2006), the total proven world natural gas reserves at the end of 2004 were 179.5 trillion m3. Considering the production rate of gas in 2004, with no increase in production thereafter, these reserves would last for 67 years. However, production of natural gas has been rising at an average rate of 2.5% over the past four years. If production continues to rise because of additional use of CNG for transportation and increased power production from natural gas, the reserves would last for fewer years. Of course, there could be additional new discoveries. However, even with additional discoveries, it is reasonable to expect that all the available natural gas resources may last from about 50 to 80 years, with a peak in production occurring much earlier.

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