CrossAmerica equity-based award activity for the three months ended March 31, 2019 was as follows:

	Employees of Circle K					Directors
	Phantom Units		Phantom Performance Units			Phantom Units		Total
Nonvested at December 31, 2018		827		13,607			15,580		30,014
Forfeited		—		(717	)		—		(717	)
Nonvested at March 31, 2019		827		12,890			15,580		29,297

Equity-based compensation expense related to these awards was $0.1 million and was insignificant for the three months ended March 31, 2019 and 2018. The liability related to these awards totaled $0.2 million and $0.1 million at March 31, 2019 and December 31, 2018, respectively.

Equity-based compensation expense for CST equity-based awards charged to us under the Amended Omnibus Agreement amounted to $0.1 million for the three months ended March 31, 2019 and 2018. Unrecognized compensation expense associated with CST equity-based awards amounted to $0.3 million at March 31, 2019 and December 31, 2018, which will be recognized over the vesting term through January 2020.