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ASSET RETIREMENT OBLIGATIONS (Tables)
 12 Months Ended
Dec. 31, 2019
Asset Retirement Obligation Disclosure [Abstract]  
Summary Of Changes In Asset Retirement Obligations


Successor
 
 
Predecessor
(in thousands)
Year Ended December 31, 2019
 
February 9, 2018 Through December 31, 2018
 
 
January 1, 2018
Through
February 8, 2018
Balance, beginning of period
$
11,552

 
$
—

 
 
$
10,469

Liabilities assumed in Business Combination(1)
—

 
5,998

 
 
—

Liabilities incurred
859

 
2,676

 
 
—

Liabilities settled
(234
)
 
(1,610
)
 
 
(63
)
Liabilities transferred in sale of properties
—

 
(19
)
 
 
—

Revisions to estimates
26

 
3,766

 
 
63

Accretion expense
980

 
741

 
 
40

Balance, end of period
13,183

 
11,552

 
 
10,509

Less: current portion
34

 
2,079

 
 
33

Long-term portion
$
13,149

 
$
9,473

 
 
$
10,476


_________________
(1)
Represents the same wells as under the Predecessor Period but valued at a higher interest rate of 10.2% compared to Predecessor interest rates ranging between 4.4% and 8.8%.