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Restricted Investments (Tables)
 12 Months Ended
Dec. 31, 2020
Investments Debt And Equity Securities [Abstract]  
Restricted Investment Balances The components of the restricted investment balances are as follows

 

 

December 31,

 

 

2020

 

 

2019

 

 

(In thousands)

 

BOEM platform abandonment (See Note 16)

$

313

 

 

$

313

 

 

 

 

 

 

 

 

 

SPBPC Collateral:

 

 

 

 

 

 

 

Contractual pipeline and surface facilities abandonment

 

4,310

 

 

 

4,309

 

Restricted investments

$

4,623

 

 

$

4,622