Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2013

Quarterly Financial Data

Quarter Ended	Operating Revenue		Operating Income		Net Income		Income  Per Basic Share		Income  Per Diluted Share
(In thousands, except per share amounts)
03/31/13	$	33,493	$	9,400	$	6,635	$	3.28	$	3.28
06/30/13		32,605		9,495		6,506		3.23		3.22
09/30/13		34,044		10,713		7,673		3.82		3.81
12/31/13		31,851		8,336		5,768		2.88		2.87
03/31/12	$	29,239	$	7,943	$	5,377	$	2.67	$	2.65
06/30/12		30,689		8,967		6,099		3.03		3.02
09/30/12		30,637		9,677		7,259		3.60		3.59
12/31/12		28,497		7,039		4,894		2.42		2.42