World's cheapest gas: Top 10 countries

While Americans and Europeans  bemoan the cost of gasoline at the pumps, people in some other parts of the world enjoy filling up their tanks cheaply thanks to subsidies provided by wealthy, oil-rich governments.  Here are the 10 cheapest countries on Earth to fill a gas tank.

7. Qatar- $0.90 per gallon ($0.24 per liter)

As well as being the world’s largest exporter of liquefied natural gas, Qatar is an OPEC member and was the 16th biggest crude oil exporter in the world in 2009. Qatar’s own oil consumption has more than tripled since 2000, due to a growing economy (and low-priced, subsidized gasoline). The Gulf country has the second highest GDP per capita in the world, estimated at $102,700 in 2011. Qatar's proven oil reserves are at 25.4 billion barrels, and oil and gas revenues make up 50 percent of its GDP.  

So far, the kingdom's economic growth has been spurred by its petroleum wealth. However, Qatar is attempting to diversify its economy and brand itself as a global "knowledge" powerhouse.  In 2009, the Qatar Science & Technology Park (QSTP) was inaugurated, a 2,500 acre complex consisted of 80 research, educational, and science centers.  Leading US universities such as Carnegie Mellon, Texas A & M, and Georgetown are offering various academic programs there.     

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