<http://schema.org/description>
"The number of rigs exploring for oil and natural gas in North Dakota is down roughly 20 percent from the start of the year, state data show."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.upi.com/Business_News/Energy-Industry/2016/01/25/North-Dakota-rig-count-down-20-percent-so-far-this-year/6941453725370/>