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Accounts Payable and Accrued Expenses (Tables)
12 Months Ended
Dec. 31, 2017
Payables and Accruals [Abstract]  
Accounts Payable and Accrued Expenses Accounts payable and accrued expenses consist of the following (in thousands):
 
December 31,
 
2017
 
2016
Accounts payable and other accrued expenses
$
94,406

 
$
65,408

Accrued interest
1,385

 
648

Production payable
18,059

 
16,011

Payroll and benefits
21,475

 
33,606

Drilling advances
3,830

 
844

Total accounts payable and accrued expenses
$
139,155

 
$
116,517