

	Years Ended December 31,
Performance Units	2018		2017		2016
Awarded Units (in thousands) (a)	581.4		590.7		597.4
Weighted Average Unit Fair Value at Grant Date	$	67.21	$	69.78	$	62.77
Vesting Period (in years)	3		3		3



Performance Units and AEP Career Shares (Reinvested Dividends Portion)	Years Ended December 31,
	2018		2017		2016
Awarded Units (in thousands) (b)	80.2		74.6		89.2
Weighted Average Fair Value at Grant Date	$	70.58	$	72.35	$	63.83
Vesting Period (in years)	(c)		(c)		(c)


(a)	Awarded units in 2018 and 2017 were mezzanine equity awards and awarded units in 2016 were liability awards.


(b)	Awarded dividends in 2018 and 2017 were a mix of equity awards and liability awards, and all awarded dividends in 2016 were liability awards.


(c)	The vesting period for the reinvested dividends on performance units is equal to the remaining life of the related performance units. Dividends on AEP career shares vest immediately when the dividend is awarded but are not settled in AEP common stock until after the participant’s AEP employment ends.

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Tabular disclosure of the number and weighted-average grant date fair value for performance units and career shares that were outstanding at the beginning and end of the year and the vesting period.

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