Quarterly Financial Data (Unaudited)

12 Months Ended

Dec. 31, 2014

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:

2014	First		Second		Third		Fourth
Operating revenues	$	369,723	$	270,281	$	251,912	$	312,947
Operating income	71,350		25,097		30,987		50,584
Net income	$	45,580	$	7,746	$	30,191	$	37,169
Average common shares outstanding	38,856		39,137		39,141		43,451
Income per average common share (basic):
Net income	$	1.17	$	0.20	$	0.77	$	0.87
Income per average common share (diluted):
Net income	$	1.17	$	0.20	$	0.77	$	0.85
Dividends per share	$	0.40	$	0.40	$	0.40	$	0.40
Stock price:
High	$	47.86	$	52.49	$	52.70	$	58.70
Low	42.64		45.49		45.30		45.14
Quarter-end close	47.43		52.19		45.36		56.58

2013	First		Second		Third		Fourth
Operating revenues	$	313,020	$	260,161	$	262,248	$	319,090
Operating income	57,010		32,660		31,401		49,962
Net income	$	37,902	$	14,341	$	15,647	$	26,093
Average common shares outstanding	37,384		38,092		38,459		38,626
Income per average common share (basic):					0		0
Net income	$	1.01	$	0.37	$	0.41	$	0.67
Income per average common share (diluted):
Net income	$	1.01	$	0.37	$	0.40	$	0.68
Dividends per share	$	0.38	$	0.38	$	0.38	$	0.38
Stock price:
High	$	40.35	$	43.17	$	45.85	$	47.18
Low	35.06		38.12		39.08		41.31
Quarter-end close	39.86		39.90		44.92		43.32