Income Taxes (Tables)

12 Months Ended

Dec. 31, 2012

Income Taxes [Abstract]

Schedule of Effective Income Tax Rate Reconciliation

	Year Ended December 31,
	2012		2011		2010
Statutory rate	35.0	%	35.0	%	35.0	%
Foreign provision	11.2		(291.0)		418.2
Effect of Australian reorganization	-		(2,984.3)		-
Nondeductible goodwill impairment (Note 2)	-		-		301.0
Valuation allowance on certain deferred tax assets	-		-		427.8
Other	0.8		(265.0)		(34.3)
Effective rate	47.0	%	(3,505.3)	%	1,147.7	%

Schedule of Components of Income Tax Expense (Benefit)

		Year Ended December 31,
		2012		2011		2010
Current	$	6,572	$	(78,150)	$	(22,930)
Deferred		(65,730)		41,344		42,096
	$	(59,158)	$	(36,806)	$	19,166

Domestic	$	(78,211)	$	(51,590)	$	1,596
Foreign		19,053		14,784		17,570
	$	(59,158)	$	(36,806)	$	19,166

Schedule of Deferred Tax Assets and Liabilities

		2012		2011
Deferred tax liabilities:
Depreciation and depletion	$	336,471	$	396,355
Original Issue Discount on 2025 and 2032 Notes		13,098		37,067
Equity investments in production facilities		81,082		76,911
Prepaid and other		10,548		14,779
Total deferred tax liabilities	$	441,199	$	525,112
Deferred tax assets:
Net operating loss carryforward	$	(36,981)	$	(34,987)
Asset retirement obligations		(70,085)		(88,279)
Reserves, accrued liabilities and other		(35,229)		(39,995)
Total deferred tax assets		(142,295)		(163,261)
Valuation allowance		16,391		14,310
Net deferred tax liabilities	$	315,295	$	376,161
Deferred income tax is presented as:
Current deferred tax assets		(43,942)		(41,449)
Noncurrent deferred tax liabilities		359,237		417,610
Net deferred tax liabilities	$	315,295	$	376,161

Reconciliation of Beginning and Ending Amount of Unrecognized Tax Benefits

		2012		2011		2010
Balance at January 1,	$	7,085	$	4,085	$	3,417
Additions based on tax positions related to current year		-		2,785		-
Additions for tax positions of prior years		206		215		668
Reductions for tax positions of prior years		(2,785)		-		-
Balance at December 31,	$	4,506	$	7,085	$	4,085