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Additional Balance Sheet Information (Tables) | 12 Months Ended
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Dec. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Components of Balance Sheet Amounts | Accounts receivable at December 31, 2014 and 2013 consisted of the following:
|  | December 31, |
(Thousands of dollars) |  | 2014 |  |  | 2013 |
Joint interest billings |  | $ | 2,882 |  |  | $ | 6,287 |
Trade receivables |  |  | 1,980 |  |  |  | 2,014 |
Oil and gas sales |  |  | 6,245 |  |  |  | 9,604 |
Other |  |  | 1,751 |  |  |  | 122 |
|  |  | 12,858 |  |  |  | 18,027 |
Less: Allowance for doubtful accounts |  |  | (543 | ) |  |  | (334 | )
Total |  | $ | 12,315 |  |  | $ | 17,693 |
Accounts payable at December 31, 2014 and 2013 consisted of the following:
|  | December 31, |
(Thousands of dollars) |  | 2014 |  |  | 2013 |
Trade |  | $ | 3,995 |  |  | $ | 1,596 |
Royalty and other owners |  |  | 8,444 |  |  |  | 7,391 |
Partner advances |  |  | 1,344 |  |  |  | 3,378 |
Prepaid drilling deposits |  |  | 786 |  |  |  | 978 |
Other |  |  | 1,689 |  |  |  | 2,906 |
Total |  | $ | 16,258 |  |  | $ | 16,249 |
Accrued liabilities at December 31, 2014 and 2013 consisted of the following:
|  | December 31, |
(Thousands of dollars) |  | 2014 |  |  | 2013 |
Compensation and related expenses |  | $ | 2,350 |  |  | $ | 3,062 |
Property costs |  |  | 9,204 |  |  |  | 3,119 |
Income tax |  |  | 554 |  |  |  | 268 |
Other |  |  | 293 |  |  |  | 383 |
Total |  | $ | 12,401 |  |  | $ | 6,832 |

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