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
Sep. 30, 2018
Dec. 31, 2017
Other current assets:    
Tubular inventory and well materials $ 6,466 $ 5,146
Prepaid expenses 980 1,104
Other Assets, Current 7,446 6,250
Other assets:    
Deferred issuance costs of the Revolver 2,578 2,857
Earnest Money Deposits [1] 0 3,210
Other 0 2,440
Other assets 2,578 8,507
Accounts payable and accrued liabilities:    
Trade accounts payable 20,256 22,579
Drilling costs 24,222 22,389
Royalties and revenue – related 51,542 39,287
Production, ad valorem and other taxes [2] 5,157 1,275
Compensation – related 4,369 2,975
Interest 613 223
Reserve for bankruptcy claims 3,940 3,933
Other [2] 1,863 3,520
Accounts payable and accrued liabilities 111,962 96,181
Other liabilities:    
Asset retirement obligations 3,811 3,286
Defined benefit pension obligations 880 971
Postretirement health care benefit obligations 520 476
Other 0 100
Other liabilities $ 5,211 $ 4,833
[1] Represents the amount remaining in the Escrow Account for the Devon Acquisition, which was utilized to fund the remaining liabilities due to Devon for the final settlement in March 2018 (see Note 3).
[2] The amount for December 31, 2017 was reclassified from Accounts payable and accrued expenses - Other.