Components of Working Capital (tables)

12 Months Ended

Dec. 31, 2013

Components Of Working Capital [Abstract]

Other Current Assets Table

A summary of other current assets is as follows:

	December 31,
thousands	2013		2012
Natural gas liquids inventory	$	2,584	$	1,678
Natural gas imbalance receivables	3,605		1,663
Prepaid insurance	2,900		1,897
Other	1,710		1,760
Total other current assets	$	10,799	$	6,998

Accrued Liabilities Table

A summary of accrued liabilities is as follows:

	December 31,
thousands	2013		2012
Accrued capital expenditures	$	94,750	$	112,311
Accrued plant purchases	21,396		16,350
Accrued interest expense	18,119		15,868
Short-term asset retirement obligations	1,966		1,711
Short-term remediation and reclamation obligations	562		799
Other	1,241		1,561
Total accrued liabilities	$	138,034	$	148,600