Quarterly report pursuant to Section 13 or 15(d)

Components of Selected Balance Sheet Accounts (Details)

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Components of Selected Balance Sheet Accounts (Details) - USD ($)
$ in Thousands
Sep. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Other current assets:      
Tubular inventory and well materials $ 3,792   $ 4,061
Prepaid expenses 1,778   1,064
Other Assets, Current 5,570   5,125
Other assets:      
Deferred issuance costs of the Revolver 4,179   2,437
Operating Lease, Right-of-Use Asset 2,901 $ 2,500 0
Other 67   44
Other assets 7,147   2,481
Accounts payable and accrued liabilities:      
Trade accounts payable 33,036   16,507
Drilling costs 25,105   22,434
Royalties and revenue – related 43,354   51,212
Production, ad valorem and other taxes 7,562   2,418
Compensation – related 5,011   4,489
Interest 675   670
Operating Lease, Liability, Current 858   0
Other 3,374   5,970
Accounts payable and accrued liabilities 118,975   103,700
Other liabilities:      
Asset retirement obligations 4,784   4,314
Operating Lease, Liability, Noncurrent 2,389   0
Defined benefit pension obligations 777   857
Postretirement health care benefit obligations 409   362
Other liabilities $ 8,359   $ 5,533