Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2018

Summary of net income (loss) attributable to Archrock common stockholders used in the calculation of basic and diluted income (loss) per common share

The following table summarizes net loss attributable to Archrock common stockholders used in the calculation of basic and diluted income (loss) per common share (in thousands):



	Year Ended December 31,
	2018			2017			2016
Net income (loss) from continuing operations attributable to Archrock stockholders	$	21,063		$	19,007		$	(54,129	)
Loss from discontinued operations, net of tax	—			(54		)	(426		)
Net income (loss) attributable to Archrock stockholders	21,063			18,953			(54,555		)
Less: Net income attributable to participating securities	(815		)	(681		)	(630		)
Net income (loss) attributable to Archrock common stockholders	$	20,248		$	18,272		$	(55,185	)

Schedule of potential shares of common stock that were included in computing diluted income (loss) attributable to Archrock common stockholders per common share

The following table shows the potential shares of common stock that were included in computing diluted loss attributable to Archrock common stockholders per common share (in thousands):



	Year Ended December 31,
	2018		2017		2016
Weighted average common shares outstanding including participating securities	110,843		70,860		70,468
Less: Weighted average participating securities outstanding	(1,538	)	(1,308	)	(1,475	)
Weighted average common shares outstanding — used in basic income (loss) per common share	109,305		69,552		68,993
Net dilutive potential common shares issuable:
On exercise of options and vesting of performance-based restricted stock units	111		112		*
On the settlement of employee stock purchase plan shares	5		—		—
Weighted average common shares outstanding — used in diluted income (loss) per common share	109,421		69,664		68,993

——————


*	Excluded from diluted loss per common share as their inclusion would have been anti-dilutive.

Schedule of potential shares of common stock issuable, excluded from computation of diluted income (loss), attributable to Archrock common stockholders per common share

The following table shows the potential shares of common stock issuable that were excluded from computing diluted income (loss) attributable to Archrock common stockholders per common share as their inclusion would have been anti-dilutive (in thousands):



	Year Ended December 31,
	2018	2017	2016
Net dilutive potential common shares issuable:
On exercise of options where exercise price is greater than average market value for the period	195	268	597
On exercise of options and vesting of restricted stock units	—	—	60
Net dilutive potential common shares issuable	195	268	657