10. 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						Six Months Ended
	June 30,						June 30,
	2018			2017			2018			2017
	(In millions)
Net income (loss) attributable to Hess Corporation Common Stockholders:
Net income (loss)	$	(87	)	$	(417	)	$	(152	)	$	(713	)
Less: Net income (loss) attributable to noncontrolling interests		43			32			84			60
Less: Preferred stock dividends		12			11			23			23
Net income (loss) attributable to Hess Corporation Common Stockholders	$	(142	)	$	(460	)	$	(259	)	$	(796	)

Weighted average number of common shares outstanding:
Basic	297.5	314.4	303.5	314.2
Effect of dilutive securities
Restricted common stock	—	—	—	—
Stock options	—	—	—	—
Performance share units	—	—	—	—
Mandatory convertible preferred stock	—	—	—	—
Diluted	297.5	314.4	303.5	314.2

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

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2018		2017		2018		2017
Restricted common stock		2,849,465		3,450,490		2,885,890		3,288,356
Stock options		5,623,004		6,550,253		5,715,292		6,424,574
Performance share units		1,072,395		522,280		847,741		417,642
Common shares from conversion of preferred stocks		12,547,650		12,734,069		12,566,312		12,640,859

During the six months ended June 30, 2018, we granted 1,081,923 shares of restricted stock (2017: 1,209,247), 278,003 performance share units (2017: 438,980) and 683,167 stock options (2017: 662,819).