Long-Term Debt (Tables)

6 Months Ended

Jun. 30, 2017

Table Text Blocks

Summary of long-term debt

(in thousands of dollars)	June 30, 2017		December 31, 2016
Revolver	$	181,000	$	178,000
2022 Notes		409,148		409,148
2023 Notes		150,000		150,000
Total principal amount		740,148		737,148
Less: unamortized discount		(5,735)		(6,240)
Less: debt issuance costs, net		(6,250)		(6,899)
Total carrying amount	$	728,163	$	724,009