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Derivative Instruments and Hedging Activities (Tables)
6 Months Ended
Jun. 30, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Summary of commodity derivative activity

Derivatives and embedded derivatives as of December 31, 2021 consisted of the following (in thousands):

​

​

​

​

​

​

​

​

​

​

​

​

​

Gross Amounts

​

Gross Amounts

​

Net Amount

​

    

Recognized

    

Offset

    

Presented

Assets:

 

​

  

 

​

  

 

​

  

Fueling agreements:

​

​

​

​

​

​

​

​

​

Prepaid expenses and other current assets

​

$

2,038

​

​

—

​

​

2,038

Notes receivable and other long-term assets, net

​

​

4,738

​

​

—

​

​

4,738

Total derivative assets

​

$

6,776

​

$

—

​

$

6,776

Liabilities:

 

​

  

 

​

  

 

​

  

Commodity swaps:

​

​

​

​

​

​

​

​

​

Current portion of derivative liabilities, related party

​

$

1,900

​

$

—

​

$

1,900

Long-term portion of derivative liabilities, related party

​

 

2,483

​

 

—

​

 

2,483

Total derivative liabilities

​

$

4,383

​

$

—

​

$

4,383

​

Derivatives and embedded derivatives as of June 30, 2022 consisted of the following (in thousands):

​

​

​

​

​

​

​

​

​

​

​

​

​

Gross Amounts

​

Gross Amounts

​

Net Amount

​

    

Recognized

    

Offset

    

Presented

Assets:

 

​

  

 

​

  

 

​

  

Fueling agreements:

​

​

​

​

​

​

​

​

​

Prepaid expenses and other current assets

​

$

4,730

​

$

—

​

$

4,730

Notes receivable and other long-term assets, net

​

​

6,615

​

​

—

​

​

6,615

Total derivative assets

​

$

11,345

​

$

—

​

$

11,345

Liabilities:

 

​

  

 

​

  

 

​

  

Commodity swaps:

​

​

​

​

​

​

​

​

​

Current portion of derivative liabilities, related party

​

$

7,116

​

$

—

​

$

7,116

Long-term portion of derivative liabilities, related party

​

​

3,918

​

​

—

​

​

3,918

Fueling agreements:

​

​

​

​

​

​

​

​

​

Accrued liabilities

​

​

5

​

​

—

​

​

5

Other long-term liabilities

​

​

27

​

​

—

​

​

27

Total derivative liabilities

​

$

11,066

​

$

—

​

$

11,066

Schedule of weighted-average price of open commodity swap contract

The following table reflects the weighted-average price of open commodity swap contracts as of December 31, 2021 and June 30, 2022, by year with associated volumes:

​

​

​

​

​

​

​

​

​

​

​

​

​

​

December 31, 2021

​

June 30, 2022

​

​

Volumes

​

  Weighted-Average Price per

​

Volumes

​

  Weighted-Average Price per

Year

    

(Diesel Gallons)

    

Diesel Gallon

    

(Diesel Gallons)

    

Diesel Gallon

2022

 

5,000,000

​

$

3.18

 

2,500,000

​

$

3.18

2023

 

5,000,000

​

$

3.18

 

5,000,000

​

$

3.18

2024

 

1,875,000

​

$

3.18

 

1,875,000

​

$

3.18