Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2012

Earnings Per Share [Abstract]

Earnings Per Share

(In thousands, except share and per share amounts)	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2012			2011			2012			2011
Numerator:
Net income attributable to BOK Financial Corp.	$	97,628		$	69,007		$	181,243		$	133,781
Earnings allocated to participating securities	(977		)	(559		)	(1,716		)	(1,020		)
Numerator for basic earnings per share – income available to common shareholders	96,651			68,448			179,527			132,761
Effect of reallocating undistributed earnings of participating securities	3			2			5			3
Numerator for diluted earnings per share – income available to common shareholders	$	96,654		$	68,450		$	179,532		$	132,764
Denominator:
Weighted average shares outstanding	68,152,242			68,451,428			68,214,648			68,419,699
Less:  Participating securities included in weighted average shares outstanding	(679,577		)	(552,945		)	(641,368		)	(519,420		)
Denominator for basic earnings per common share	67,472,665			67,898,483			67,573,280			67,900,279
Dilutive effect of employee stock compensation plans1	272,163			271,002			274,379			272,903
Denominator for diluted earnings per common share	67,744,828			68,169,485			67,847,659			68,173,182
Basic earnings per share	$	1.43		$	1.01		$	2.66		$	1.96
Diluted earnings per share	$	1.43		$	1.00		$	2.65		$	1.95
1  Excludes employee stock options with exercise prices greater than current market price.	366,407			785,686			361,558			771,343