Federal and State Income Taxes

6 Months Ended

Jun. 30, 2014

Income Tax Disclosure [Abstract]

Federal and State Income Taxes

(13) Federal and State Income Taxes

The reconciliations of income (loss) attributable to continuing operations at the U.S. federal statutory tax rate to income tax expense are as follows (in thousands):

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2014			2013			2014			2013
Amount:
Federal statutory tax	$	39,886		$	42,459		$	79,976		$	90,113
Tax exempt revenue	(2,099		)	(1,803		)	(4,090		)	(3,545		)
Effect of state income taxes, net of federal benefit	2,457			3,122			5,327			6,500
Utilization of tax credits	(2,836		)	(1,826		)	(5,466		)	(3,548		)
Bank-owned life insurance	(784		)	(993		)	(1,552		)	(1,878		)
Charitable contributions to BOKF Foundation	—			—			(427		)	—
Other, net	606			464			963			877
Total	$	37,230		$	41,423		$	74,731		$	88,519

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2014		2013		2014		2013
Percent of pretax income:
Federal statutory tax	35	%	35	%	35	%	35	%
Tax exempt revenue	(2	)	(1	)	(2	)	(1	)
Effect of state income taxes, net of federal benefit	3		3		3		2
Utilization of tax credits	(2	)	(2	)	(2	)	(1	)
Bank-owned life insurance	(1	)	(1	)	(1	)	(1	)
Charitable contributions to BOKF Foundation	—		—		—		—
Other, net	—		—		—		—
Total	33	%	34	%	33	%	34	%