v3.22.2.2
Stock-Based Compensation
9 Months Ended
Sep. 30, 2022
Share-Based Payment Arrangement [Abstract]  
Stock-Based Compensation Stock-Based Compensation
In connection with the Sinclair Transactions, we assumed all obligations of HollyFrontier under HollyFrontier’s existing stock-based compensation plans, which includes the HF Sinclair Corporation 2007 Long-Term Incentive Compensation Plan (previously known as the HollyFrontier Corporation Long-Term Incentive Compensation Plan, the “2007 Plan”) and the HF Sinclair Corporation Amended and Restated 2020 Long Term Incentive Plan (previously known as the HollyFrontier Corporation 2020 Long Term Incentive Plan, the “2020 Plan”). Awards are no longer granted, but continue to remain outstanding, under the 2007 Plan. The 2007 Plan previously provided for, and the 2020 Plan currently provides for, the grant of unrestricted and restricted stock, restricted stock units, other stock based awards, stock options, performance awards, substitute awards, cash awards and stock appreciation rights. The restricted stock unit awards generally vest over a period of one to three years. Upon vesting, restrictions on the restricted stock units lapse at which time they convert to common shares or cash. The performance share units generally vest over a period of three years and are payable in stock or cash upon meeting certain financial and performance criteria. The number of shares ultimately issued or cash paid for the performance share units can range from zero to 200% of target award amounts. The holders of unvested restricted stock units and performance share units have the right to receive dividends. We also have a stock compensation deferral plan which allows non-employee directors to defer settlement of vested stock granted under our share-based compensation plan.

The compensation cost for these plans was $8.2 million and $9.2 million for the three months ended September 30, 2022 and 2021, respectively, and $25.6 million and $32.0 million for the nine months ended September 30, 2022 and 2021, respectively.

Additionally, HEP maintains an equity-based compensation plan for Holly Logistic Services, L.L.C.’s non-employee directors and certain executives and employees. Compensation cost attributable to HEP’s equity-based compensation plan was $0.3 million and $0.6 million for the three months ended September 30, 2022 and 2021, respectively, and $1.5 million and $1.9 million, for the nine months ended September 30, 2022 and 2021, respectively.
A summary of restricted stock unit and performance share unit activity during the nine months ended September 30, 2022 is presented below:
Restricted Stock UnitsPerformance Share Units
Outstanding at January 1, 20221,604,540 864,626 
Granted (1)
102,062 7,335 
Vested(109,720)(25,733)
Forfeited(180,972)(155,632)
Outstanding at September 30, 20221,415,910 690,596 
(1) Weighted average grant date fair value per unit$48.60 $38.50