Discontinued Operations (Tables)

9 Months Ended

Sep. 30, 2012

Discontinued Operations

Summarized results income statement, assets and liabilities of discontinued operations

	Three months ended September 30,						Nine months ended September 30,
	2012			2011			2012			2011
Operating revenues	$	257		$	259		$	696		$	804
Operating and maintenance expense	(224		)	(169		)	(656		)	(539		)
Depreciation and amortization expense	(48		)	(80		)	(182		)	(258		)
Loss on impairment of assets in discontinued operations	(878		)	(7		)	(913		)	(32		)
Gain (loss) on disposal of assets in discontinued operations, net	(1		)	(1		)	70			175
Income (loss) from discontinued operations before income tax expense	(894		)	2			(985		)	150
Income tax expense	(15		)	(7		)	(9		)	(34		)
Income (loss) from discontinued operations, net of tax	$	(909	)	$	(5	)	$	(994	)	$	116

	September 30, 2012		December 31, 2011
Assets
Rigs and related equipment, net	$	819	$	—
Materials and supplies	99		—
Oil and gas properties, net	6		24
Other related assets	6		2
Assets held for sale	$	930	$	26
Materials and supplies	$	—	$	98
Other assets	8		21
Other current assets	$	8	$	119
Rigs and related equipment, net	$	—	$	1,745
Deferred costs	—		42
Other assets	$	—	$	1,787
Liabilities
Deferred revenue	$	—	$	17
Deferred income taxes, net	6		6
Other liabilities	3		14
Other current liabilities	$	9	$	37
Deferred revenue	$	—	$	8
Deferred income taxes, net	—		5
Other liabilities	$	—	$	13