Quarterly report pursuant to Section 13 or 15(d)

Stock Based Compensation

Stock Based Compensation
6 Months Ended
Jun. 30, 2023
Share-Based Payment Arrangement [Abstract]  
Stock Based Compensation Equity Based Compensation
Upon formation of certain operating entities by Wexford and Gulfport, specified members of management (the “Specified Members”) and certain non-employee members (the “Non-Employee Members”) were granted the right to receive distributions from the operating entities after the contribution member’s unreturned capital balance was recovered (referred to as “Payout” provision).

On November 24, 2014, the awards were modified in conjunction with the contribution of the operating entities to Mammoth. These awards were not granted in limited or general partner units. The awards are for interests in the distributable earnings of the members of MEH Sub, Mammoth’s majority equity holder.

On the closing date of Mammoth Inc.’s initial public offering (“IPO”), the unreturned capital balance of Mammoth’s majority equity holder was not fully recovered from its sale of common stock in the IPO. As a result, Payout did not occur and no compensation cost was recorded.

Payout for the remaining awards is expected to occur as the contributing member’s unreturned capital balance is recovered from additional sales by MEH Sub of its shares of the Company’s common stock or from dividend distributions, which is not considered probable until the event occurs. For the Specified Member awards, the unrecognized amount, which represents the fair value of the award as of the modification dates or grant date, was $5.6 million.
For the Company’s Non-Employee Member awards, the unrecognized amount, which represents the fair value of the awards as of the date of adoption of ASU 2018-07 was $18.9 million.Stock Based Compensation
The 2016 Plan authorizes the Company’s Board of Directors or the compensation committee of the Company’s Board of Directors to grant restricted stock, restricted stock units, stock appreciation rights, stock options and performance awards. There was a maximum of 4.5 million shares of common stock reserved for issuance under the 2016 Plan, of which 0.6 million shares of common stock remain available for future grants under the 2016 plan as of June 30, 2023.

Restricted Stock Units

The fair value of restricted stock unit awards was determined based on the fair market value of the Company’s common stock on the date of the grant. This value is amortized over the vesting period.
A summary of the status and changes of the unvested shares of restricted stock under the 2016 Plan is presented below.
Number of Unvested Restricted Shares Weighted Average Grant-Date Fair Value
Unvested shares as of January 1, 2022 1,128,205  $ 1.27 
Granted 228,310  2.19 
Vested (628,205) 1.54 
Forfeited —  — 
Unvested shares as of December 31, 2022 728,310  1.32 
Granted 369,050  5.17 
Vested (794,977) 1.69 
Forfeited —  — 
Unvested shares as of June 30, 2023 302,383  $ 5.06 

As of June 30, 2023, there was $1.4 million of total unrecognized compensation cost related to the unvested restricted stock. The cost is expected to be recognized over a weighted average period of approximately two years.
Included in cost of revenue and selling, general and administrative expenses is stock-based compensation expense of $0.3 million and $0.9 million for the three and six months ended June 30, 2023, respectively, and $0.2 million and $0.4 million for the three and six months ended June 30, 2022, respectively.