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Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2017

Stock-Based Compensation

Summary of stock option activity

The following table presents stock option activity during the six months ended June 30, 2017:

	Stock Options (in thousands)			Weighted Average Exercise Price Per Share				Weighted Average Remaining Life (in years)		Aggregate Intrinsic Value (in thousands)
Options outstanding, January 1, 2017	747			$	16.88
Granted	—			—
Exercised	(76	)		12.34
Canceled	(133	)		36.53
Options outstanding, June 30, 2017	538			12.66				2.0		$	1,225
Options exercisable, June 30, 2017	538			12.66				2.0		1,225

Schedule of restricted stock, restricted stock unit, performance unit, cash settled restricted stock unit and cash settled performance unit activity

The following table presents restricted stock, restricted stock unit, performance unit, cash-settled restricted stock unit and cash- settled performance unit activity during the six months ended June 30, 2017:

	Shares (in thousands)			Weighted Average Grant Date Fair Value Per Share
Non-vested awards, January 1, 2017	1,612			$	10.08
Granted	725			13.24
Vested	(650	)		12.23
Canceled	(103	)		10.77
Non-vested awards, June 30, 2017 (1)	1,584			10.60

⁽¹⁾  Non-vested awards as of June 30, 2017 are comprised of 258,000 cash-settled restricted stock units and cash-settled performance units and 1,326,000 restricted shares and stock-settled restricted stock units.

Exterran Partners, L.P.

Stock-Based Compensation

Schedule of phantom unit activity

The following table presents phantom unit activity during the six months ended June 30, 2017:

	Phantom Units (in thousands)			Weighted Average Grant Date Fair Value per Unit
Phantom units outstanding, January 1, 2017	197			$	11.60
Granted	81			16.28
Vested	(84	)		14.76
Canceled	(11	)		7.84
Phantom units outstanding, June 30, 2017	183			12.44

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Tabular disclosure of the changes in outstanding nonvested shares.

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