<http://schema.org/mainEntityOfPage>
<http://www.upi.com/Business_News/Energy-Industry/2013/04/11/Bakken-crude-headed-east-by-rail/11231365682459/>
<http://www.upi.com/Business_News/Energy-Industry/2013/04/11/Bakken-crude-headed-east-by-rail/UPI-11231365682459/?st_rec=91611368698654>