Earnings per Share (Tables)

12 Months Ended

Dec. 31, 2019

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



	Year Ended December 31,
	2019			2018			2017
Net income from continuing operations attributable to Archrock stockholders	$	97,603		$	21,063		$	19,007
Loss from discontinued operations, net of tax	(273		)	—			(54		)
Net income attributable to Archrock stockholders	97,330			21,063			18,953
Less: Net income attributable to participating securities	(1,348		)	(815		)	(681		)
Net income attributable to Archrock common stockholders	$	95,982		$	20,248		$	18,272

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 net income attributable to Archrock common stockholders per common share (in thousands):



	Year Ended December 31,
	2019		2018		2017
Weighted average common shares outstanding including participating securities	139,317		110,843		70,860
Less: Weighted average participating securities outstanding	(1,825	)	(1,538	)	(1,308	)
Weighted average common shares outstanding used in basic net income per common share	137,492		109,305		69,552
Net dilutive potential common shares issuable:
On exercise of options and vesting of performance-based restricted stock units	34		111		112
On settlement of employee stock purchase plan shares	2		5		—
Weighted average common shares outstanding used in diluted net income per common share	137,528		109,421		69,664

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 net income attributable to Archrock common stockholders per common share as their inclusion would have been anti-dilutive (in thousands):



	Year Ended December 31,
	2019	2018	2017
On exercise of options where exercise price is greater than average market value for the period	154	195	268