12. Weighted Average Common Shares

The Net income (loss) and weighted average number of common shares used in the basic and diluted earnings per share computations were as follows:

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2018			2017			2018			2017
	(In millions)
Net income (loss) attributable to Hess Corporation Common Stockholders:
Net income (loss)	$	3		$	(593	)	$	(149	)	$	(1,306	)
Less: Net income (loss) attributable to noncontrolling interests		45			31			129			91
Less: Preferred stock dividends		11			11			34			34
Net income (loss) attributable to Hess Corporation Common Stockholders	$	(53	)	$	(635	)	$	(312	)	$	(1,431	)

Weighted average number of common shares outstanding:
Basic	294.3	314.5	300.4	314.3
Effect of dilutive securities
Restricted common stock	—	—	—	—
Stock options	—	—	—	—
Performance share units	—	—	—	—
Mandatory convertible preferred stock	—	—	—	—
Diluted	294.3	314.5	300.4	314.3

The following table summarizes the number of antidilutive shares excluded from the computation of diluted shares:

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2018		2017		2018		2017
Restricted common stock		2,898,733		3,313,441		2,890,171		3,296,718
Stock options		5,324,682		6,509,214		5,585,088		6,452,788
Performance share units		1,301,604		709,445		999,029		514,910
Common shares from conversion of preferred stocks		12,547,650		13,400,515		12,560,091		12,894,078

During the nine months ended September 30, 2018, we granted 1,255,799 shares of restricted stock (2017: 1,214,460), 278,003 performance share units (2017: 438,980) and 683,167 stock options (2017: 662,819).