More from Maps - Tough Oil

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A short history of oil: 1900 to 2010

Apr 20, 2011
Over the past century, the center of crude oil production has shifted across the globe.
Posted In: Oil

One year after BP spill, geopolitics of oil intensifies

Apr 19, 2011
All the easy oil is gone. Now, it'll be harder to reach, and to buy from unstable foreign governments.
Posted In: Oil

Era of 'tough oil' won't deter drillers

Apr 18, 2011
Nowadays, oil is tough to get, expensive and risky. Yet true believers in the oil sector say they're up to the task -- and have the track record to prove it.
Posted In: Oil
 

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