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Accumulated Other Comprehensive Income (Loss) (Tables) | 6 Months Ended
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Jun. 30, 2014
Accumulated Other Comprehensive Income (Loss) |
Changes in accumulated other comprehensive income (loss) by component, net of tax |
(In thousands) |  | Net Gain (Loss) on Cash Flow Hedges |  | Postretirement Benefits |  | Total |
Balance at December 31, 2013 |  | $ | (6,551 | ) | $ | (1,810 | ) | $ | (8,361 | )
Other comprehensive income before reclassifications |  | (80,175 | ) | — |  | (80,175 | )
Amounts reclassified from accumulated other comprehensive income |  | 56,372 |  | — |  | 56,372 |
Net current-period other comprehensive income |  | (23,803 | ) | — |  | (23,803 | )
Balance at June 30, 2014 |  | $ | (30,354 | ) | $ | (1,810 | ) | $ | (32,164 | )
Schedule of amount reclassified from accumulated other comprehensive income (loss) into the Condensed Consolidated Statement of Operations |
|  | Three Months Ended June 30, |  | Six Months Ended June 30, |  | Affected Line Item in the Condensed |
(In thousands) |  | 2014 |  | 2013 |  | 2014 |  | 2013 |  | Consolidated Statement of Operations |
Net gain (loss) on cash flow hedges |  |  |  |  |  |  |  |  |  |  |
Commodity contracts |  | $ | (22,320 | ) | $ | (272 | ) | $ | (92,877 | ) | $ | 13,056 |  | Natural gas revenues |
Commodity contracts |  | (636 | ) | 2,094 |  | (854 | ) | 4,136 |  | Crude oil and condensate revenues |
Postretirement benefits |  |  |  |  |  |  |  |  |  |  |
Amortization of net loss |  | — |  | (205 | ) | — |  | (410 | ) | General and administrative expense |
|  | (22,956 | ) | 1,617 |  | (93,731 | ) | 16,782 |  | Total before tax |
|  | 9,149 |  | (636 | ) | 37,359 |  | (6,601 | ) | Tax benefit (expense) |
Total reclassifications for the period |  | $ | (13,807 | ) | $ | 981 |  | $ | (56,372 | ) | $ | 10,181 |  | Net of tax |

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