<http://schema.org/url>
<http://www.businessweek.com/articles/2012-11-12/u-dot-s-dot-the-new-saudi-arabia-peak-oilers-scoff>
<http://www.bloomberg.com/bw/articles/2012-11-12/u-dot-s-dot-the-new-saudi-arabia-peak-oilers-scoff>