Consolidated Statements of Income (USD $) In Thousands, except Per Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Operating Revenue	$ 132,529	$ 127,245	$ 397,413	$ 370,273
Operating Expenses
Salaries, wages, and benefits	40,903	42,581	124,832	125,439
Rent and purchased transportation	1,832	2,343	5,767	7,270
Fuel	40,966	31,690	122,421	92,242
Operations and maintenance	5,257	5,039	16,504	12,610
Operating taxes and licenses	2,400	2,166	6,952	6,191
Insurance and claims	3,920	1,993	10,373	10,366
Communications and utilities	770	906	2,141	2,668
Depreciation	14,900	15,139	40,942	46,241
Other operating expenses	3,248	4,278	10,119	10,805
Gain on disposal of property and equipment	(6,799)	(7,951)	(22,329)	(10,484)
Total operating expenses	107,397	98,184	317,722	303,348
Operating income	25,132	29,061	79,691	66,925
Interest income	174	347	620	1,166
Income before income taxes	25,306	29,408	80,311	68,091
Federal and state income taxes	9,907	11,111	27,501	21,254
Net income	$ 15,399	$ 18,297	$ 52,810	$ 46,837
Earnings per share	$ 0.17	$ 0.20	$ 0.58	$ 0.52
Weighted average shares outstanding	90,129	90,689	90,500	90,689
Dividends declared per share	$ 0.02	$ 1.02	$ 0.06	$ 1.06