Long-Term Debt (Tables)

6 Months Ended

Jun. 30, 2016

Debt Disclosure [Abstract]

Carrying Amount of Components of Long-term Debt

The following table summarizes our debt obligations as of the dates presented:

	As of
	June 30, 2016					December 31, 2015
	Principal			Unamortized Issuance Costs 1		Principal			Unamortized Issuance Costs
Revolving credit facility 2	$	112,553				$	170,000
Senior notes due 2019	300,000			$	—	300,000			$	3,295
Senior notes due 2020	775,000			—		775,000			17,322
Totals	1,187,553			$	—	1,245,000			$	20,617
Less: Unamortized issuance costs	—					(20,617		)
Less: Reclassified to Liabilities subject to compromise	(1,075,000		)			—
Debt obligations, net of unamortized issuance costs	$	112,553				$	1,224,383

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¹ Issuance costs attributable to the Senior Notes were subject to an accelerated write-off in advance of our bankruptcy filing during the three months ended June 30, 2016.

² Issuance costs attributable to the RBL, which represent costs attributable to the access to credit over the RBL’s contractual term, were presented as a component of Other assets (see Note 11) prior to the accelerated write-off in advance of our bankruptcy filing during the three months ended June 30, 2016.