Segment Information (Tables)

12 Months Ended

Dec. 31, 2014

Dec. 31, 2013

Dec. 31, 2012

Segment Reporting [Abstract]

Segment Information Table

	Domestic		China		Total
	(In millions)
Year Ended December 31, 2014:
Oil, gas and NGL revenues	$	2,249	$	39	$	2,288
Operating expenses:
Lease operating	309		12		321
Transportation and processing	174		—		174
Production and other taxes	105		6		111
Depreciation, depletion and amortization	857		13		870
General and administrative	221		1		222
Other	15		—		15
Allocated income tax (benefit)	210		5
Net income (loss) from oil and gas properties	$	358	$	2
Total operating expenses					1,713
Income (loss) from continuing operations					575
Interest expense, net of interest income, capitalized interest and other					(153		)
Commodity derivative income (expense)					610
Income (loss) from continuing operations before income taxes					$	1,032
Total assets	$	8,870	$	728	$	9,598
Additions to long-lived assets	$	2,044	$	156	$	2,200

	Domestic		China		Total
	(In millions)
Year Ended December 31, 2013:
Oil, gas and NGL revenues	$	1,788	$	69	$	1,857
Operating expenses:
Lease operating	276		8		284
Transportation and processing	137		—		137
Production and other taxes	67		12		79
Depreciation, depletion and amortization	668		17		685
General and administrative	219		—		219
Other	3		—		3
Allocated income tax (benefit)	155		19
Net income (loss) from oil and gas properties	$	263	$	13
Total operating expenses					1,407
Income (loss) from continuing operations					450
Interest expense, net of interest income, capitalized interest and other					(152		)
Commodity derivative income (expense)					(97		)
Income (loss) from continuing operations before income taxes					$	201
Total assets(1)	$	7,863	$	542	$	8,405
Additions to long-lived assets	$	1,932	$	174	$	2,106

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(1) Excludes total assets from our discontinued operations of $916 million.

	Domestic			China		Total
	(In millions)
Year Ended December 31, 2012:
Oil, gas and NGL revenues	$	1,476		$	86	$	1,562
Operating expenses:
Lease operating	299			7		306
Transportation and processing	107			—		107
Production and other taxes	67			18		85
Depreciation, depletion and amortization	683			21		704
General and administrative	211			—		211
Ceiling test impairment	1,488			—		1,488
Other	15			—		15
Allocated income tax (benefit)	(516		)	24
Net income (loss) from oil and gas properties	$	(878	)	$	16
Total operating expenses						2,916
Income (loss) from continuing operations						(1,354		)
Interest expense, net of interest income, capitalized interest and other						(140		)
Commodity derivative income (expense)						120
Income (loss) from continuing operations before income taxes						$	(1,374	)
Total assets(1)	$	6,699		$	347	$	7,046
Additions to long-lived assets	$	1,655		$	87	$	1,742

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(1) Excludes total assets from our discontinued operations of $866 million.