Accounts Payable and Accrued Liabilities

9 Months Ended

Sep. 30, 2011

Accounts Payable and Accrued Liabilities [Abstract]

ACCOUNTS PAYABLE AND ACCRUED LIABILITIES

9. ACCOUNTS PAYABLE AND ACCRUED LIABILITIES

The following provides the detail of accounts payable and accrued liabilities:

	September 30,		December 31,
	2011		2010
	(unaudited)
	(dollars in thousands)
Capital expenditures	$	26,111	$	22,743
Revenues and royalties payable		4,163		5,962
Operating expenses/taxes		30,070		18,220
Compensation		2,431		2,591
Liability related to drilling rig		—		9,785
Other		2,313		1,775
Total accrued liabilities		65,088		61,076
Accounts payable		14,230		26,179
Accounts payable and accrued liabilities	$	79,318	$	87,255

The following provides the detail of other long-term liabilities:

	September 30,		December 31,
	2011		2010
	(unaudited)
	(dollars in thousands)
Acquisition obligation	$	435	$	411
Remediation liability		978		943
Other		3,639		5,886
Total other long-term liabilities	$	5,052	$	7,240