<http://schema.org/description>
"The U.S. has lifted its oil production to over 8 million barrels per day, the highest level in decades. But where exactly is all that oil coming from?"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.cheatsheet.com/business/black-gold-u-s-states-where-oil-is-king.html/>