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Additional Balance Sheet Information - Components of Balance Sheet Amounts (Detail) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012
--- | --- | ---
Accounts Receivable: |  |
Joint interest billings | $ 6,287 | $ 2,189
Trade receivables | 2,014 | 1,580
Oil and gas sales | 9,604 | 9,362
Other | 122 | 436
Accounts Receivable, Gross | 18,027 | 13,567
Less: Allowance for doubtful accounts | (334) | (355)
Total | 17,693 | 13,212
Accounts Payable: |  |
Trade | 1,596 | 3,968
Royalty and other owners | 7,391 | 9,652
Partner advances | 3,378 | 3,589
Prepaid drilling deposits | 978 | 306
Other | 2,906 | 2,053
Total | 16,249 | 19,568
Accrued Liabilities: |  |
Compensation and related expenses | 3,062 | 2,517
Property costs | 3,119 | 4,549
Income tax | 268 |
Other | 383 | 552
Total | $ 6,832 | $ 7,618

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