Supplemental Cash Flow Information

9 Months Ended

Sep. 30, 2016

Supplemental Cash Flow Elements [Abstract]

The following table discloses supplemental cash flow information about cash paid for interest and income tax payments and refunds. Also disclosed is information about investing activities that affects recognized assets and liabilities but has not yet resulted in cash receipts or payments.



	Nine months ended September 30,
In thousands	2016		2015
Supplemental cash flow information:
Cash paid for interest	$	213,969	$	204,180
Cash paid for income taxes	—		27
Cash received for income tax refunds	174		59,117
Non-cash investing activities:
Asset retirement obligation additions and revisions, net	1,645		6,267

As of September 30, 2016 and December 31, 2015, the Company had $186.2 million and $282.8 million, respectively, of accrued capital expenditures included in "Net property and equipment" and "Accounts payable trade" in the condensed consolidated balance sheets. As of September 30, 2015 and December 31, 2014, the Company had $315.0 million and $797.5 million, respectively, of accrued capital expenditures.