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FAIR VALUE MEASUREMENTS (Tables)
9 Months Ended
Sep. 30, 2022
Fair Value Disclosures [Abstract]  
Fair Value, by Balance Sheet Grouping The following tables present assets and liabilities accounted for at fair value on a recurring basis as of September 30, 2022 and December 31, 2021 (in thousands):
As of September 30, 2022
Level 1Level 2Level 3Total
Derivative instruments, assets
Commodity$1,219 $— $— $1,219 
Derivative instruments, assets1,219 — — 1,219 
Derivative instruments, liabilities
Derivative warrants— — 14,303 14,303 
Derivative warrants, liabilities— — 14,303 14,303 
Total$1,219 $— $(14,303)$(13,084)
As of December 31, 2021
Level 1Level 2Level 3Total
Derivative instruments, assets
Commodity$96 $— $— $96 
Derivative instruments, assets96 — — 96 
Derivative instruments, liabilities
Derivative warrants— — 75,211 75,211 
Derivative warrants, liabilities— — 75,211 75,211 
Total$96 $— $(75,211)$(75,115)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation The Dynamic Black-Scholes Merton unobservable inputs used were as follows:
Dynamic Black-Scholes Merton Unobservable Inputs
Initial WarrantsAdditional Warrants
Expected dividend rate— %— %
Expected volatility104.52 %101 %
Risk free interest rate4.06 %4.06 %
Expected term55.5

The following is an analysis of changes in the derivative liability classified as level 3 in the fair value hierarchy for the nine months ended September 30, 2022 (in thousands):

Level Three Roll-Forward
2022
Balance at beginning of period$75,211 
April 1 warrants granted22,795 
May 26 warrants granted2,874 
Equity component of the convertible senior not(78,789)
Change in valuation of warrants included in net income(7,788)
Balance at end of period$14,303