Earnings Per Common Share Of SEACOR

9 Months Ended

Sep. 30, 2011

Earnings Per Common Share Of SEACOR [Abstract]

Earnings Per Common Share Of SEACOR

11. Earnings Per Common Share of SEACOR

Basic earnings per common share of SEACOR are computed based on the weighted average number of common shares issued and outstanding during the relevant periods. Diluted earnings per common share of SEACOR are computed based on the weighted average number of common shares issued and outstanding plus the effect of potentially dilutive securities through the application of the treasury stock method. Dilutive securities for this purpose assumes restricted stock grants have vested and common shares have been issued pursuant to the exercise of outstanding stock options. For the three and nine months ended September 30, 2011, diluted earnings per common share of SEACOR excluded 389,536 and 302,521, respectively, of certain share awards as the effect of their inclusion in the computation would have been antidilutive. For the three and nine months ended September 30, 2010, diluted earnings per common share of SEACOR excluded 939,071 and 872,748, respectively, of certain share awards as the effect of their inclusion in the computation would have been antidilutive.

A reconciliation of basic and diluted weighted average outstanding common shares of SEACOR was as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2011		2010		2011		2010
Basic Weighted Average Common Shares Outstanding		21,202,480		20,786,721		21,158,110		21,590,917
Effect of Dilutive Share Awards:
Options and Restricted Stock		362,669		213,844		350,347		194,375
Diluted Weighted Average Common Shares Outstanding		21,565,149		21,000,565		21,508,457		21,785,292