Gulf spill reminds America: The era of easy oil' is over

Why are we going nearly to the ends of the earth and the bottom of the seas for oil?
The answer, say many experts, is that we're consuming as much oil as we ever have but the era of "easy oil" is in our rearview mirror and receding fast. "No one goes and tries to drill in a mile of water if they can think of somewhere easier to do it," said Chris Skrebowski, a former strategist for British Petroleum who now runs a London consultan"The easy stuff that you have access to ... is already spoken for. All that's left is the frontiers, which are necessarily more technically challenging.

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