Earnings Per Share

12 Months Ended

Dec. 31, 2015

Earnings per share of common stock outstanding were computed as follows:



	Year Ended December 31,
	2015		2014		2013
	(Millions Except Share and Per Share Amounts)
Basic earnings per share —
Net income attributable to Tenneco Inc.	$	247	$	226	$	183
Average shares of common stock outstanding	59,678,309		60,734,022		60,474,492
Earnings per average share of common stock	$	4.14	$	3.72	$	3.03
Diluted earnings per share —
Net income attributable to Tenneco Inc.	$	247	$	226	$	183
Average shares of common stock outstanding	59,678,309		60,734,022		60,474,492
Effect of dilutive securities:
Restricted stock	96,168		130,732		205,020
Stock options	418,673		917,754		914,550
Average shares of common stock outstanding including dilutive securities	60,193,150		61,782,508		61,594,062
Earnings per average share of common stock	$	4.11	$	3.66	$	2.97

Options to purchase 175,216, 1,357 and 205,104 shares of common stock were outstanding as of December 31, 2015, 2014 and 2013, respectively, but not included in the computation of diluted earnings per share, because the options were anti-dilutive.