Significant Customers

12 Months Ended

Dec. 31, 2015

Risks and Uncertainties [Abstract]

Significant Customers

Significant Customers

The Company has a concentration of customers who are engaged in oil and natural gas purchasing, transportation and/or refining within the U.S. This concentration of customers may impact the Company’s overall exposure to credit risk, either positively or negatively, in that the customers may be similarly affected by changes in economic or other conditions. The Company’s customers consist primarily of major oil and natural gas purchasers and the Company generally does not require collateral since it has not experienced significant credit losses on such sales. The Company routinely assesses the recoverability of all material trade and other receivables to determine collectibility (see Note 1).

For the years ended December 31, 2015, December 31, 2014, and December 31, 2013, the Company’s largest customer represented approximately 12%, 14% and 12%, respectively, of the Company’s sales.

At December 31, 2015, no individual customer exceeded 10% of the Company’s receivables. At December 31, 2014, trade accounts receivable from one customer represented approximately 11% of the Company’s receivables.