Segment Information

12 Months Ended

Dec. 31, 2014

Segment Reporting [Abstract]

Segment Reporting Disclosure [Text Block]

Segment Information

While we only have operations in the oil and gas exploration and production industry, we are organizationally structured along geographic operating segments. Our current operating segments are the United States and China. Prior to classifying our Malaysia business as held for sale and discontinued operations, we reported a business segment for Malaysia. The accounting policies of each of our operating segments are the same as those described in Note 1, “Organization and Summary of Significant Accounting Policies.”

The following tables provide the geographic operating segment information for our continuing operations for the years ended December 31, 2014, 2013 and 2012. Income tax allocations have been determined based on statutory rates in the applicable geographic segment. In order to reflect the double taxation of our earnings and profits in China, we have applied the statutory rates for China and the U.S. to determine our income tax allocation for our China operations in the following three tables.

	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.