Significant Customers

6 Months Ended

Jun. 30, 2013

Risks and Uncertainties [Abstract]

Significant Customers

Significant Customers

All revenues are domestic revenues, of which 95% are generated currently from our two largest customers: HFC and Alon. The vast majority of our revenues are derived from activities conducted in the southwest United States.

The following table presents the percentage of total revenues generated by each of these customers:

	Three Months Ended June 30,				Six Months Ended June 30,
	2013		2012		2013		2012
HFC	84	%	84	%	83	%	83	%
Alon	11	%	11	%	10	%	11	%