<http://schema.org/url>
<http://www.businessweek.com/articles/2014-07-28/can-the-u-dot-s-dot-double-its-crude-exports-in-a-year>
<http://www.bloomberg.com/bw/articles/2014-07-28/can-the-u-dot-s-dot-double-its-crude-exports-in-a-year>