Newly exploited tight oil formations account for more than 100% of the increase in U.S. field production of crude oil since 2005. But that doesn't mean it's easy to make money getting oil out of the ground this way.
The Wall Street Journal reported last week:
Royal Dutch Shell (RDSA) plans to sell its stake in the Eagle Ford Shale in South Texas, following a $2 billion write-down of North American assets that the company announced in August.
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