Maps - Tough Oil
From This Collection
A short history of oil: 1900 to 2010
Over the past century, the center of crude oil production has shifted across the globe.
One year after BP spill, geopolitics of oil intensifies
All the easy oil is gone. Now, it'll be harder to reach, and to buy from unstable foreign governments.
Era of 'tough oil' won't deter drillers
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.