Comprehensive Income (Tables)

9 Months Ended

Sep. 30, 2011

Comprehensive Income [Abstract]

Comprehensive income (loss) attributable to Questar and Questar Pipeline

Comprehensive income (loss) attributable to Questar is the sum of net income attributable to Questar as reported in the Consolidated Statements of Income and net other comprehensive income (loss). Net other comprehensive income (loss) includes recognition of the under-funded position of the defined benefit pension plan and other postretirement benefits (employee benefits); changes in the market value of long-term investments, interest rate cash flow hedges, and commodity-based derivative instruments; and income taxes. These transactions are not the culmination of the earnings process but result from periodically adjusting historical balances to fair value. Income or loss is recognized when the pension or other postretirement benefit costs are accrued, when the long-term investment is sold or otherwise realized, when the Company begins recording interest expense for the hedged interest payments and when gas, oil or NGL underlying the derivative instrument is sold. Consolidated comprehensive income (loss) attributable to Questar is shown below:

	3 Months Ended Sept. 30,		9 Months Ended Sept. 30,		12 Months Ended Sept. 30,
	2011	2010	2011	2010	2011	2010
	(in millions)
Net income	$36.1	$27.7	$146.3	$276.8	$210.0	$427.7
Other comprehensive income (loss)
Employee benefits	-	(38.0)	-	(12.5)	34.0	35.3
Long-term investment	-	-	-	0.1	-	0.1
Interest rate cash flow hedges	(37.0)	-	(36.2)	-	(36.2)	-
Discontinued operations
Change in unrealized fair value of derivatives       held by QEP	-	-	-	(138.7)	-	(151.3)
Income taxes	13.7	14.5	13.4	56.5	0.3	42.9
Net other comprehensive (loss)	(23.3)	(23.5)	(22.8)	(94.6)	(1.9)	(73.0)
Comprehensive income	12.8	4.2	123.5	182.2	208.1	354.7
Discontinued operations, noncontrolling interest	-	-	-	(1.3)	-	(2.2)
Comprehensive income attributable to Questar	$12.8	$4.2	$123.5	$180.9	$208.1	$352.5

	3 Months Ended Sept. 30,		9 Months Ended Sept. 30,		12 Months Ended Sept. 30,
	2011	2010	2011	2010	2011	2010
	(in millions)
Net income	$18.8	$16.3	$50.7	$49.4	$68.7	$63.8
Other comprehensive (loss)
Interest rate cash flow hedges	(37.0)	-	(36.2)	-	(36.2)	-
Income taxes	13.7	-	13.4	-	13.4	-
Net other comprehensive (loss)	(23.3)	-	(22.8)	-	(22.8)	-
Comprehensive income (loss)	($4.5)	$16.3	$27.9	$49.4	$45.9	$63.8

Components of Accumulated Other Comprehensive Income (Loss)

The components of Accumulated Other Comprehensive Income (Loss) (AOCI), net of income taxes, shown on Questar's Condensed Consolidated Balance Sheets are as follows:

	Sept. 30, 2011	Sept. 30, 2010	Dec. 31, 2010
	(in millions)
Employee benefits	($104.1)	($125.0)	($104.1)
Long-term investment	0.1	0.1	0.1
Interest rate cash flow hedges	(22.8)	-	-
Accumulated Other Comprehensive (Loss)	($126.8)	($124.9)	($104.0)

	Sept. 30, 2011	Sept. 30, 2010	Dec. 31, 2010
	(in millions)
Interest rate cash flow hedges	($22.8)	$    -	$    -
Accumulated Other Comprehensive (Loss)	($22.8)	$    -	$    -