What’s driving the global glut of oil

Aired: 8/25/2015 | 0:05:40 | Clip
A year ago, crude oil was trading at more than $100 a barrel. Now, the price of oil is down more than 60 percent from its peak. Gwen Ifill speaks to The Wall Street Journal’s Russell Gold to understand the drop and how it affects the U.S. economy.

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