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v3.10.0.1

Selected Quarterly Financial Information (Schedule Of Error Correction) (Details) - USD ($) $ / shares in Units, $ in Thousands | Dec. 31, 2018 | Sep. 30, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | --- | --- | --- | ---
Current assets: |  |  |  |  |
Cash and cash equivalents | $ 33,360 | $ 33,715 | $ 19,669 |  |
Restricted cash | 804 | 1,025 | 842 |  |
Receivables: |  |  |  |  |
Trade | 11,907 |  | 3,556 |  |
Accounts with joint venture owners, net of allowance of $0.5 million for both years presented | 949 | 931 | 3,395 |  |
Other | 1,398 | 408 | 100 |  |
Crude oil inventory | 785 | 2,232 | 3,263 |  |
Prepayments and other | 6,301 | 3,058 | 2,791 |  |
Current assets - discontinued operations | 3,290 | 3,222 | 2,836 |  |
Total current assets | 58,794 | 44,591 | 36,452 |  |
Oil and natural gas properties and equipment - successful efforts method: |  |  |  |  |
Proved properties |  | 409,611 |  |  |
Unproved properties | 23,771 | 23,771 | 10,000 |  |
Equipment and other | 9,552 | 8,821 | 9,432 |  |
Gross oil and natural gas properties, equipment and other | 443,329 | 442,203 | 409,367 |  |
Accumulated depreciation, depletion, amortization and impairment | (390,605) | (388,660) | (386,146) |  |
Net oil and natural gas properties, equipment and other | 52,724 | 53,543 | 23,221 |  |
Other noncurrent assets: |  |  |  |  |
Restricted cash | 920 | 918 | 967 |  |
Value added tax and other receivables, net of allowance of $2.0 million and $6.5 million, respectively | 2,226 | 2,306 | 6,925 |  |
Deferred tax assets | 40,077 | 50,195 | 1,260 |  |
Abandonment funding | 11,571 | 10,808 | 10,808 |  |
Total assets | 166,312 | 162,361 | 79,633 |  |
Current liabilities: |  |  |  |  |
Accounts payable | 8,083 | 7,219 | 11,584 |  |
Accounts with joint venture owners | 304 | 5,496 |  |  |
Accrued liabilities and other | 14,138 | 17,662 | 12,991 |  |
Foreign taxes payable | 3,274 | 1,775 |  |  |
Current portion of long term debt |  |  | 6,666 |  |
Current liabilities - discontinued operations | 15,245 | 15,191 | 15,347 |  |
Total current liabilities | 41,044 | 47,343 | 46,588 |  |
Asset retirement obligations | 14,816 | 14,459 | 20,163 |  |
Other long-term liabilities | 625 | 1,264 | 284 |  |
Long term debt, excluding current portion, net |  |  | 2,309 |  |
Total liabilities | 56,485 | 63,066 | 69,344 |  |
Commitments and contingencies |  |  |  |  |
Shareholders’ equity: |  |  |  |  |
Preferred stock, none issued, 500,000 shares authorized, $25 par value |  |  |  |  |
Common stock, $0.10 par value; 100,000,000 shares authorized, 67,167,994 and 66,443,971 shares issued, 59,595,742 and 58,862,876 shares outstanding, respectively | 6,717 | 6,709 | 6,644 |  |
Additional paid-in capital | 72,358 | 72,229 | 71,251 |  |
Less treasury stock, 7,572,251 and 7,581,095 shares, respectively, at cost | (37,827) | (37,798) | (37,953) |  |
Retained earnings (deficit) | 68,579 | 58,155 | (29,653) |  |
Total shareholders' equity | 109,827 | 99,295 | 10,289 | $ (358) | $ 26,076
Total liabilities and shareholders' equity | 166,312 | 162,361 | 79,633 |  |
Allowance for accounts with partners | 500 |  | 500 |  |
Allowance for value added tax receivable | $ 2,000 |  | $ 6,500 |  |
Preferred stock, shares issued | 0 |  | 0 |  |
Preferred stock, shares authorized | 500,000 |  | 500,000 |  |
Preferred stock, par value | $ 25 |  | $ 25 |  |
Common stock, par value | $ 0.10 |  | $ 0.10 |  |
Common stock, shares authorized | 100,000,000 |  | 100,000,000 |  |
Common stock, shares issued | 67,167,994 |  | 66,443,971 |  |
Common stock, shares outstanding | 59,595,742 |  | 58,862,876 |  |
Treasury stock, shares | 7,572,251 |  | 7,581,095 |  |
Previously Reported [Member] |  |  |  |  |
Current assets: |  |  |  |  |
Cash and cash equivalents |  | 33,715 |  |  |
Restricted cash |  | 1,025 |  |  |
Receivables: |  |  |  |  |
Accounts with joint venture owners, net of allowance of $0.5 million for both years presented |  | 931 |  |  |
Other |  | 408 |  |  |
Crude oil inventory |  | 2,232 |  |  |
Prepayments and other |  | 3,058 |  |  |
Current assets - discontinued operations |  | 3,222 |  |  |
Total current assets |  | 44,591 |  |  |
Oil and natural gas properties and equipment - successful efforts method: |  |  |  |  |
Proved properties |  | 398,072 |  |  |
Unproved properties |  | 16,698 |  |  |
Equipment and other |  | 8,821 |  |  |
Gross oil and natural gas properties, equipment and other |  | 423,591 |  |  |
Accumulated depreciation, depletion, amortization and impairment |  | (388,660) |  |  |
Net oil and natural gas properties, equipment and other |  | 34,931 |  |  |
Other noncurrent assets: |  |  |  |  |
Restricted cash |  | 918 |  |  |
Value added tax and other receivables, net of allowance of $2.0 million and $6.5 million, respectively |  | 2,306 |  |  |
Deferred tax assets |  | 68,807 |  |  |
Abandonment funding |  | 10,808 |  |  |
Total assets |  | 162,361 |  |  |
Current liabilities: |  |  |  |  |
Accounts payable |  | 7,219 |  |  |
Accounts with joint venture owners |  | 5,496 |  |  |
Accrued liabilities and other |  | 17,662 |  |  |
Foreign taxes payable |  | 1,775 |  |  |
Current liabilities - discontinued operations |  | 15,191 |  |  |
Total current liabilities |  | 47,343 |  |  |
Asset retirement obligations |  | 14,459 |  |  |
Other long-term liabilities |  | 1,264 |  |  |
Total liabilities |  | 63,066 |  |  |
Commitments and contingencies |  |  |  |  |
Shareholders’ equity: |  |  |  |  |
Common stock, $0.10 par value; 100,000,000 shares authorized, 67,167,994 and 66,443,971 shares issued, 59,595,742 and 58,862,876 shares outstanding, respectively |  | 6,709 |  |  |
Additional paid-in capital |  | 72,229 |  |  |
Less treasury stock, 7,572,251 and 7,581,095 shares, respectively, at cost |  | (37,798) |  |  |
Retained earnings (deficit) |  | 58,155 |  |  |
Total shareholders' equity |  | 99,295 |  |  |
Total liabilities and shareholders' equity |  | 162,361 |  |  |
Restatement Adjustment [Member] |  |  |  |  |
Oil and natural gas properties and equipment - successful efforts method: |  |  |  |  |
Proved properties |  | 11,539 |  |  |
Unproved properties |  | 7,073 |  |  |
Gross oil and natural gas properties, equipment and other |  | 18,612 |  |  |
Net oil and natural gas properties, equipment and other |  | 18,612 |  |  |
Other noncurrent assets: |  |  |  |  |
Deferred tax assets |  | (18,612) |  |  |
Current liabilities: |  |  |  |  |
Commitments and contingencies |  |  |  |  |

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