SIGNIFICANT ACCOUNTING POLICIES (Tables)

6 Months Ended

Jun. 30, 2011

Schedule of Earnings Per Share, Basic and Diluted

Per share amounts are computed as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
	2011		2010		2011		2010
Numerator (in millions):
Net income attributable to The Lubrizol Corporation	$	191.3	$	201.4	$	360.8	$	363.7
Denominator (in millions of shares):
Weighted-average common shares outstanding		64.6		68.2		64.5		68.4
Dilutive effect of stock options and awards		1.5		1.6		1.5		1.4
Denominator for net income per share, diluted		66.1		69.8		66.0		69.8
Net income per share attributable to The Lubrizol Corporation, basic	$	2.96	$	2.95	$	5.59	$	5.32
Net income per share attributable to The Lubrizol Corporation, diluted	$	2.90	$	2.88	$	5.47	$	5.21