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, 2017
Dec. 31, 2016
Other current assets:    
Tubular inventory and well materials $ 2,297 $ 2,125
Prepaid expenses 818 903
Other Assets, Current 3,115 3,028
Other assets:    
Deferred issuance costs of the Revolver 3,130 2,785
Earnest Money Deposits 3,205 [1] 0
Other 2,488 2,544
Other assets 8,823 5,329
Accounts payable and accrued liabilities:    
Trade accounts payable 7,275 9,825
Drilling costs 10,620 2,479
Royalties and revenue – related 30,184 26,116
Compensation – related 3,135 2,557
Interest 107 55
Reserve for bankruptcy claims 3,922 3,922
Other 6,993 4,743
Accounts payable and accrued liabilities 62,236 49,697
Other liabilities:    
Asset retirement obligations 3,041 2,459
Defined benefit pension obligations 946 1,025
Postretirement health care benefit obligations 544 488
Other 100 100
Other liabilities $ 4,631 $ 4,072
[1] 1 Represents amount remaining in the escrow deposit for the Acquisition (see Note 3).