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Additional Balance Sheet Detail
 12 Months Ended
Dec. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Additional Balance Sheet Detail
Additional Balance Sheet Detail
The following table summarizes components of selected balance sheet accounts as of the dates presented:
 
December 31,
 
2017
 
 
2016
Other current assets:
 

 
 
 

Tubular inventory and well materials
$
5,146

 
 
$
2,125

Prepaid expenses
1,104

 
 
903

Other
—

 
 
—

 
$
6,250

 
 
$
3,028

Other assets:
 

 
 
 

Deferred issuance costs of the Credit Facility
$
2,857

 
 
$
2,785

Deposit in escrow 1
3,210

 
 
—

Other
2,440

 
 
2,544

 
$
8,507

 
 
$
5,329

Accounts payable and accrued liabilities:
 

 
 
 

Trade accounts payable
$
22,579

 
 
$
9,825

Drilling costs
22,389

 
 
2,479

Royalties and revenue - related
39,287

 
 
26,116

Compensation - related
2,975

 
 
2,557

Interest
223

 
 
55

Reserve for bankruptcy claims
3,933

 
 
3,922

Other
4,795

 
 
4,743

 
$
96,181

 
 
$
49,697

Other liabilities:
 

 
 
 

Asset retirement obligations
$
3,286

 
 
$
2,459

Defined benefit pension obligations
971

 
 
1,025

Postretirement health care benefit obligations
476

 
 
488

Other
100

 
 
100

 
$
4,833

 
 
$
4,072


_____________________________________________
1 Represents amount remaining in the Escrow Account for the Devon Acquisition which will fully fund the remaining liability due to Devon for the final settlement (see Note 5).