Segment Information (Tables)

3 Months Ended

9 Months Ended

Sep. 30, 2012

Sep. 30, 2011

Sep. 30, 2012

Sep. 30, 2011

Segment Information [Abstract]

Segment Information Table

Three Months Ended September 30, 2012:
			Domestic		Malaysia		China		Total
			(In millions)
Oil and gas revenues			$	371	$	228	$	16	$	615
Operating expenses:
	Lease operating			99		27		2		128
	Production and other taxes			17		59		3		79
	Depreciation, depletion and amortization			172		61		4		237
	General and administrative			57		2		—		59
	Other			6		—		—		6
	Allocated income tax			7		30		2
		Net income from oil and
		gas properties	$	13	$	49	$	5
		Total operating expenses								509
Income from operations										106
	Interest expense, net of interest income,
	capitalized interest and other									(52)
	Commodity derivative expense									(98)
Loss before income taxes									$	(44)
Total assets			$	8,235	$	878	$	318	$	9,431
Additions to long-lived assets			$	362	$	61	$	30	$	453

Three Months Ended September 30, 2011:
			Domestic		Malaysia		China		Total
			(In millions)
Oil and gas revenues			$	444	$	159	$	25	$	628
Operating expenses:
	Lease operating			93		21		1		115
	Production and other taxes			19		71		5		95
	Depreciation, depletion and amortization			154		29		6		189
	General and administrative			49		1		1		51
	Allocated income tax			48		14		3
		Net income from oil and
		gas properties	$	81	$	23	$	9
		Total operating expenses								450
Income from operations										178
	Interest expense, net of interest income,
	capitalized interest and other									(16)
	Commodity derivative income									262
Income before income taxes									$	424
Total assets			$	7,879	$	789	$	235	$	8,903
Additions to long-lived assets			$	597	$	81	$	13	$	691

Nine Months Ended September 30, 2012:
			Domestic		Malaysia		China		Total
			(In millions)
Oil and gas revenues			$	1,124	$	724	$	73	$	1,921
Operating expenses:
	Lease operating			305		73		6		384
	Production and other taxes			53		182		15		250
	Depreciation, depletion and amortization			510		175		17		702
	General and administrative			161		4		—		165
	Other			6		—		—		6
	Allocated income tax			33		110		9
		Net income from oil and
		gas properties	$	56	$	180	$	26
		Total operating expenses								1,507
Income from operations										414
	Interest expense, net of interest income,
	capitalized interest and other									(118)
	Commodity derivative income									61
Income before income taxes									$	357
Total assets			$	8,235	$	878	$	318	$	9,431
Additions to long-lived assets			$	1,246	$	130	$	50	$	1,426

Nine Months Ended September 30, 2011:
			Domestic		Malaysia		China		Total
			(In millions)
Oil and gas revenues			$	1,313	$	416	$	65	$	1,794
Operating expenses:
	Lease operating			260		69		4		333
	Production and other taxes			56		173		16		245
	Depreciation, depletion and amortization			440		73		15		528
	General and administrative			128		3		1		132
	Allocated income tax			159		37		7
		Net income from oil and
		gas properties	$	270	$	61	$	22
		Total operating expenses								1,238
Income from operations										556
	Interest expense, net of interest income,
	capitalized interest and other									(61)
	Commodity derivative income									249
Income before income taxes									$	744
Total assets			$	7,879	$	789	$	235	$	8,903
Additions to long-lived assets			$	1,858	$	208	$	48	$	2,114