Annual report pursuant to Section 13 and 15(d)

Deferred Revenue

Deferred Revenue
12 Months Ended
Dec. 31, 2014
Deferred Revenue Disclosure [Abstract]  
Deferred Revenue

13.Deferred Revenue


In March 2013, the Company assigned the 2013 and 2014 contractual delivery obligations under two of its sales contracts to a natural resources trading company in exchange for a cash payment of $5.1 million. The Company reflected the related revenue when the related deliveries under the contracts were settled. As of December 31, 2014, all deliveries called for had been made and the revenue thereon recognized.