5.	Stock Based Compensation

The Amended and Restated 2014 CARBO Ceramics Inc. Omnibus Incentive Plan (the “Amended and Restated 2014 Omnibus Incentive Plan”) provides for granting of cash-based awards, stock options (both non-qualified and incentive) and other equity-based awards (including stock appreciation rights, phantom stock, restricted stock, restricted stock units, performance shares, deferred share units or share-denominated performance units) to employees and non-employee directors. As of March 31, 2018, 425,840 shares were available for issuance under the Amended and Restated 2014 Omnibus Incentive Plan.

A summary of restricted stock activity and related information for the three months ended March 31, 2018 is presented below:

	Shares			Weighted-Average Grant-Date Fair Value Per Share
Nonvested at January 1, 2018		441,119		$	14.87
Granted		334,638		$	12.16
Vested		(200,394	)	$	18.20
Forfeited		(1,152	)	$	12.06
Nonvested at March 31, 2018		574,211		$	12.13

As of March 31, 2018, there was $6,335 of total unrecognized compensation cost related to restricted shares granted under the Amended and Restated 2014 Omnibus Incentive Plan. That cost is expected to be recognized over a weighted-average period of 2.3 years. The total fair value of shares vested during the three months ended March 31, 2018 was $1,567.

The Company made market-based cash awards to certain executives of the Company pursuant to the Amended and Restated 2014 Omnibus Incentive Plan. As of March 31, 2018, the total target award outstanding was $3,210. The payout of awards can range from 0% to 200% based on the Company’s Relative Total Shareholder Return calculated over a three year period beginning January 1 of the year each grant was made. During the three months ended March 31, 2018, a total of $526 was paid relating to the 2015 grant, which was approximately 76% of the total target award.

The Company also granted phantom stock and cash-settled restricted stock units (collectively discussed as “phantom stock”) to certain key employees pursuant to the Amended and Restated 2014 Omnibus Incentive Plan. The units subject to a phantom stock award vest and cease to be forfeitable in equal annual installments over a three-year period. Participants awarded units of phantom stock are entitled to a lump sum cash payment equal to the fair market value of a share of Common Stock on the vesting date. In no event will Common Stock of the Company be issued with regard to outstanding phantom stock awards. As of March 31, 2018, there were 214,616 units of phantom stock granted under the Amended and Restated 2014 Omnibus Incentive Plan, of which 54,020 have vested and 12,950 have been forfeited. As of March 31, 2018, nonvested units of phantom stock under the Amended and Restated 2014 Omnibus Incentive Plan had a total value of $1,070, a portion of which is accrued as a liability within Accrued Payroll and Benefits. Compensation expense for these units of phantom stock will be recognized over the three-year vesting period. The amount of compensation expense recognized each period will be based on the fair value of the Company’s common stock at the end of each period.