v2.4.0.6

Condensed Consolidated Statements of Income (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Operating revenues (includes revenue taxes of $22, $31, $82 and $106, respectively)	$ 240	$ 359	$ 862	$ 1,275
Operating expenses
Cost of goods sold	80	182	451	822
Operation and maintenance	68	66	156	149
Depreciation and amortization	48	47	97	94
Taxes other than income taxes	25	36	90	115
Total operating expenses	221	331	794	1,180
Operating income	19	28	68	95
Interest expense, net	8	8	16	15
Earnings before income taxes	11	20	52	80
Income tax expense	4	7	20	30
Net income	$ 7	$ 13	$ 32	$ 50

The aggregate total costs related with selling product and services, as well as all other general and administrative expenses. Excludes taxes not related to income and depreciation, depletion and amortization expense.

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The aggregate cost of goods produced and sold and services rendered during the reporting period.

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Total costs of sales and operating expenses for the period.

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The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.

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Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest.

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The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations.

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The cost of borrowed funds accounted for as interest that was charged against earnings during the period.

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The net result for the period of deducting operating expenses from operating revenues.

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The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains.

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Amount of operating expense for taxes other than income.

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NORTHERN ILLINOIS GAS CO /IL/ /NEW/ 10-Q