Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2015

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

The fair value hierarchy for our financial assets accounted for at fair value on a recurring basis at March 31, 2015 and December 31, 2014 was as follows (in thousands):



	As of March 31, 2015
	Level 1		Level 2			Level 3		Total
Assets
Interest rate derivatives	$	—	$	5		$	—	$	5
Liabilities
Commodity derivatives	—		(36		)	—		(36		)
Net liabilities	$	—	$	(31	)	$	—	$	(31	)



	As of December 31, 2014
	Level 1		Level 2			Level 3		Total
Assets
Interest rate derivatives	$	—	$	24		$	—	$	24
Commodity derivatives	—		456			—		456
Total assets	—		480			—		480
Liabilities
Commodity derivatives	—		(61		)	—		(61		)
Net assets	$	—	$	419		$	—	$	419