Quarterly Financial Data (Unaudited)

12 Months Ended

Dec. 31, 2012

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Data

Quarterly Financial Data (Unaudited)

Our quarterly financial information has not been audited, but, in management's opinion, includes all adjustments necessary for a fair presentation. Our business is seasonal in nature with the peak sales periods generally occurring during the summer and winter months. Accordingly, comparisons among quarters of a year may not represent overall trends and changes in operations. Amounts presented are in thousands, except per share data:

2012	First		Second		Third			Fourth
Operating revenues	$	309,100	$	244,603	$	235,866		$	280,773
Operating income	55,033		28,720		4,409			89,024
Net income (loss)	$	32,043	$	11,438	$	(3,772	)	$	58,697
Average common shares outstanding	36,328		36,635		37,201			37,218
Income per average common share (basic):
Net income (loss)	$	0.88	$	0.31	$	(0.10	)	$	1.58
Income per average common share (diluted):
Net income (loss)	$	0.88	$	0.31	$	(0.10	)	$	1.57
Dividends per share	$	0.37	$	0.37	$	0.37		$	0.37
Stock price:
High	$	36.39	$	37.05	$	37.96		$	36.70
Low	34.22		33.72		35.44			32.98
Quarter-end close	35.46		36.70		36.23			34.73

We recorded a pre-tax gain of approximately $47.9 million within cost of sales in the Consolidated Income Statements during the fourth quarter of 2012 associated with the CELP arbitration decision. See Note 4 - Significant Events for further detail.

2011	First		Second		Third		Fourth
Operating revenues	$	338,260	$	251,806	$	244,041	$	283,209
Operating income	58,095		26,244		31,878		49,332
Net income	$	32,575	$	10,970	$	14,895	$	34,116
Average common shares outstanding	36,242		36,258		36,262		36,271
Income per average common share (basic):
Net income	$	0.90	$	0.30	$	0.41	$	0.94
Income per average common share (diluted):
Net income	$	0.89	$	0.30	$	0.41	$	0.93
Dividends per share	$	0.36	$	0.36	$	0.36	$	0.36
Stock price:
High	$	30.57	$	33.24	$	34.17	$	36.61
Low	27.38		29.37		28.68		30.44
Quarter-end close	30.30		33.11		31.94		35.79