Quarterly Financial Information

12 Months Ended

Dec. 31, 2011

Selected Quarterly Financial Information [Abstract]

Note 16 - Quarterly Financial Information (Unaudited)

Following is a summary of unaudited quarterly financial information:



	First Quarter		Second Quarter		Third Quarter		Fourth Quarter		Year
	(in millions, except per-share amounts)
2011
Revenues	$	470.0	$	222.9	$	146.7	$	354.8	$	1,194.4
Operating income	122.8		73.7		63.8		106.6		366.9
Income from continuing operations	69.9		40.3		36.1		61.6		207.9
Net income attributable to Questar	69.9		40.3		36.1		61.6		207.9
Per-share information attributable to Questar
Basic EPS from continuing operations	$	0.40	$	0.22	$	0.21	$	0.34	$	1.17
Basic EPS attributable to Questar	0.40		0.22		0.21		0.34		1.17
Diluted EPS from continuing operations	0.39		0.22		0.20		0.34		1.16
Diluted EPS attributable to Questar	0.39		0.22		0.20		0.34		1.16

2010
Revenues	$	414.6	$	201.1	$	145.2	$	362.7	$	1,123.6
Operating income	124.8		56.3		54.4		107.8		343.3
Income from continuing operations	72.2		28.7		27.7		63.7		192.3
Discontinued operations, net of income taxes	78.1		68.8		—		—		146.9
Net income attributable to Questar	150.3		97.5		27.7		63.7		339.2
Per-share information attributable to Questar
Basic EPS from continuing operations	$	0.41	$	0.17	$	0.15	$	0.36	$	1.09
Basic EPS attributable to Questar	0.86		0.56		0.15		0.36		1.93
Diluted EPS from continuing operations	0.41		0.16		0.15		0.36		1.08
Diluted EPS attributable to Questar	0.85		0.55		0.15		0.36		1.91

- Definition

This element can be used to disclose the entire quarterly financial data disclosure in the annual financial statements as a single block of text. The disclosure includes a tabular presentation of financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income (loss) before extraordinary items and cumulative effect of a change in accounting principle and earnings per share data. It also includes an indication if the information in the note is unaudited, comments on the aggregate effect of year-end adjustments, and an explanation of matters or transactions that affect comparability or are pertinent to an understanding of the information furnished. Alternatively, the details of this disclosure can be reported using the elements in this group, or by using other taxonomy elements and applying the appropriate quarterly date and period contexts when creating an instance document. For example, the element for "Interest and Dividend Income, Operating" may be used by financial institutions from the Statement of Income, applying the appropriate quarterly date and period context when creating an instance document.

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