Segment Information (Tables)

3 Months Ended

Mar. 31, 2017

Mar. 31, 2016

Segment Reporting [Abstract]

Segment Information Table

	Domestic		China		Total
	(In millions)
Three Months Ended March 31, 2017:
Oil, gas and NGL revenues	$	383	$	34	$	417
Operating expenses:
Lease operating	48		8		56
Transportation and processing	72		—		72
Production and other taxes	14		—		14
Depreciation, depletion and amortization	96		10		106
General and administrative	46		1		47
Other	1		—		1
Allocated income tax (benefit)	39		9
Net income (loss) from oil and gas properties	$	67	$	6
Total operating expenses					296
Income (loss) from operations					121
Interest expense, net of interest income, capitalized interest and other					(20		)
Commodity derivative income (expense)					53
Income (loss) from operations before income taxes					$	154
Total assets	$	4,248	$	140	$	4,388
Additions to long-lived assets	$	257	$	—	$	257

	Domestic			China			Total
	(In millions)
Three Months Ended March 31, 2016:
Oil, gas and NGL revenues	$	235		$	49		$	284
Operating expenses:
Lease operating	47			14			61
Transportation and processing	63			—			63
Production and other taxes	10			—			10
Depreciation, depletion and amortization	133			44			177
General and administrative	43			1			44
Ceiling test and other impairments	461			45			506
Other	1			—			1
Allocated income tax (benefit)	(194		)	(33		)
Net income (loss) from oil and gas properties	$	(329	)	$	(22	)
Total operating expenses							862
Income (loss) from operations							(578		)
Interest expense, net of interest income, capitalized interest and other							(31		)
Commodity derivative income (expense)							(17		)
Income (loss) from operations before income taxes							$	(626	)
Total assets	$	4,540		$	237		$	4,777
Additions to long-lived assets	$	261		$	—		$	261