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Fair Value Measurements (Tables)
6 Months Ended
Jun. 30, 2019
Fair Value Disclosures [Abstract]  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis
Our financial assets and liabilities that were accounted for at fair value on a recurring basis at June 30, 2019 and December 31, 2018 are as follows:
 
 
June 30, 2019
(In thousands)
 
Level 1
 
Level 2
 
Level 3
 
Total
 
 
 
 
 
 
 
 
 
Assets—commodity derivative instruments
 
$

 
$
162

 
$

 
$
162

 
 
December 31, 2018
(In thousands)
 
Level 1
 
Level 2
 
Level 3
 
Total
Assets—commodity derivative instruments
 
$

 
$
1,057

 
$

 
$
1,057