Earnings Per Share

6 Months Ended

Jun. 30, 2011

Earnings Per Share [Abstract]

EARNINGS PER SHARE

4.   EARNINGS PER SHARE

The calculation of earnings per share attributable to the Company is presented below (in thousands, except per share amounts):

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2011		2010		2011		2010
Basic earnings per share:
Net income attributable to Oil States International, Inc.	$	74,243	$	37,477	$	136,320	$	77,720
Weighted average number of shares outstanding		51,231		50,146		51,083		50,021
Basic earnings per share	$	1.45	$	0.75	$	2.67	$	1.55
Diluted earnings per share:
Net income attributable to Oil States International, Inc.	$	74,243	$	37,477	$	136,320	$	77,720
Weighted average number of shares outstanding		51,231		50,146		51,083		50,021
Effect of dilutive securities:
Options on common stock		679		631		703		615
23/8% Convertible Senior Subordinated Notes		3,200		1,507		3,094		1,364
Restricted stock awards and other		160		171		181		188
Total shares and dilutive securities		55,270		52,455		55,061		52,188
Diluted earnings per share	$	1.34	$	0.71	$	2.48	$	1.49

Our calculation of diluted earnings per share for the three and six months ended June 30, 2011 excludes 178,855 shares and 177,702 shares, respectively, issuable pursuant to outstanding stock options and restricted stock awards due to their antidilutive effect. Our calculation of diluted earnings per share for the three and six months ended June 30, 2010 excludes 466,315 shares and 434,891 shares, respectively, issuable pursuant to outstanding stock options and restricted stock awards due to their antidilutive effect.