Earnings Per Share (CPE Inc. Only) (Tables) (Cloud Peak Energy Inc.)

12 Months Ended

Dec. 31, 2012

Cloud Peak Energy Inc.

Summary of calculation of basic and diluted earnings per share

The following table summarizes the calculation of basic and diluted earnings per share for the years ended December 31, (in thousands, except per share amounts):

	2012		2011		2010

Numerator for calculation of basic earnings per share:
Net income	$	173,720	$	189,797	$	33,737
Denominator for basic income per share:
Weighted-average shares outstanding		60,093		60,004		31,889

Basic earnings per share	$	2.89	$	3.16	$	1.06

Numerator for calculation of diluted earnings per share:
Net income	$	173,720	$	189,797	$	33,737
Denominator for diluted income per share:
Weighted-average shares outstanding		60,093		60,004		31,889
Dilutive effect of stock equivalents		834		633		—

Denominator for diluted earnings per share		60,927		60,637		31,889

Diluted earnings per share	$	2.85	$	3.13	$	1.06

Schedule of anti-dilutive securities excluded from diluted earnings per share calculation

For the years ended December 31, the following were excluded from the diluted earnings per share calculation because they were anti-dilutive (in thousands):



CPE Resources common membership units held by noncontrolling interest	—	—	25,695
Restricted stock	28	7	878
Options outstanding	57	73	1,032
Employee stock purchase plan	21	8	—