Stock-Based Compensation

The Nuverra Environmental Solutions, Inc. 2017 Long Term Incentive Plan (the “Incentive Plan”) is intended to provide for the grant of equity-based awards to designated members of the Company’s management and employees. The maximum number of shares of the Company’s common stock that is available for the issuance of awards under the Incentive Plan is 1,772,058. As of March 31, 2020, approximately 771,000 shares were available for issuance under the Incentive Plan.

The 2018 Restricted Stock Plan for Directors (the “Director Plan”) provides for the grant of restricted stock to the non-employee directors of the Company. The Director Plan limits the shares that may be issued thereunder to 100,000 shares of common stock. As of March 31, 2020, approximately 75,000 shares were available for issuance under the Director Plan.

The total grants awarded under both the Incentive Plan and the Director Plan during the three months ended March 31, 2020 and March 31, 2019 are presented in the table below:



	Three Months Ended
	March 31,
	2020	2019
Restricted stock grants (1)	—	119
Total grants in the period	—	119


(1)	Includes restricted stock awards, performance-based restricted stock units, and time-based restricted stock units granted under the Incentive Plan and the Director Plan. No awards were granted during the three months ended March 31, 2020

The total stock-based compensation expense, net of estimated forfeitures, included in “General and administrative expenses” in the accompanying condensed consolidated statements of operations for the three months ended March 31, 2020 and March 31, 2019 was as follows:



	Three Months Ended
	March 31,
	2020		2019
Restricted stock (1)	$	290	$	852
Total expense	$	290	$	852


(1)	Includes expense related to restricted stock awards, performance-based restricted stock units, and time-based restricted stock units granted under the Incentive Plan and the Director Plan.

At March 31, 2020, the total unrecognized share-based compensation expense, net of estimated forfeitures, was $0.9 million and is expected to be recognized over a weighted average period of 0.75 years.