Additional Balance Sheet Information - Components of Balance Sheet Amounts (Detail) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Accounts Receivable:
Joint interest billings	$ 3,288	$ 2,345
Trade receivables	1,209	1,070
Oil and gas sales	4,232	4,078
Other	128	204
Accounts Receivable, Gross	8,857	7,697
Less: Allowance for doubtful accounts	(297)	(297)
Total	8,560	7,400
Accounts Payable:
Trade	3,037	3,967
Royalty and other owners	6,655	5,909
Partner advances	592	592
Prepaid drilling deposits	48	83
Other	762	1,414
Total	11,094	11,965
Accrued Liabilities:
Compensation and related expenses	6,435	2,295
Property costs	10,707	3,317
Income tax	10,962	1,988
Other	2,471	584
Total	$ 30,575	$ 8,184

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Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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