Selected Quarterly Financial Data (Unaudited)

12 Months Ended

Dec. 31, 2012

Selected Quarterly Financial Data

Quarterly Financial Information

Selected Quarterly Financial Data (Unaudited)

The following table summarizes the Company’s unaudited results of operations on a quarterly basis. The quarterly earnings per share amounts for a year will not add to the earnings per share for that year due to the weighting of shares used in calculating per share data.

	2012 Quarters								2011 Quarters
	4th		3rd		2nd		1st		4th		3rd		2nd		1st
					(In thousands except for share data)
Operating revenues (1)	$	188,802	$	267,249	$	228,252	$	168,578	$	191,663	$	307,633	$	242,605	$	176,112
Operating income	13,708		86,396		56,512		12,042		15,994		102,215		58,121		14,473
Net income	4,819		51,789		30,894		3,344		5,453		58,321		32,990		6,775
Basic earnings per share:
Net income	0.12		1.29		0.77		0.08		0.14		1.41		0.78		0.16
Diluted earnings per share:
Net income	0.12		1.29		0.77		0.08		0.13		1.40		0.78		0.16
Dividends declared per share of common stock	0.25		0.25		0.25		0.22		0.22		0.22		0.22		—

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(1) Operating revenues are seasonal in nature, with the peak sales periods generally occurring during the summer months. Comparisons among quarters of a year may not represent overall trends and changes in operations.