Quarterly report pursuant to Section 13 or 15(d)

Components of Selected Balance Sheet Accounts (Detail)

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Components of Selected Balance Sheet Accounts (Detail) - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Other current assets:    
Tubular inventory and well materials $ 3,474 $ 4,061
Prepaid expenses 1,079 1,064
Other Assets, Current 4,553 5,125
Other assets:    
Deferred issuance costs of the Revolver 2,060 2,437
Operating Lease, Right-of-Use Asset 2,451 0
Other 44 44
Other assets 4,555 2,481
Accounts payable and accrued liabilities:    
Trade accounts payable 23,020 16,507
Drilling costs 36,003 22,434
Royalties and revenue – related 46,521 51,212
Production, ad valorem and other taxes 3,747 2,418
Compensation – related 2,091 4,489
Interest 815 670
Operating Lease, Liability, Current 689 0
Other 4,382 5,970
Accounts payable and accrued liabilities 117,268 103,700
Other liabilities:    
Asset retirement obligations 4,370 4,314
Operating Lease, Liability, Noncurrent 2,109 0
Defined benefit pension obligations 828 857
Postretirement health care benefit obligations 377 362
Other liabilities $ 7,684 $ 5,533