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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2014
Income Tax Disclosure [Abstract] |
Schedule of Components of Income Tax Expense (Benefit) | The income tax provision for continuing operations consists of the following:
| 2014 |  | 2013 |  | 2012
| (In thousands)
Current: |  |  |  |  |
State | $ | 14,384 |  |  | $ | 6,860 |  |  | $ | 84 |
Federal | 16,039 |  |  | 6,325 |  |  | 646 |
Deferred: |  |  |  |  |
State | 4,314 |  |  | 7,385 |  |  | 2,214 |
Federal | 118,604 |  |  | 77,566 |  |  | 23,419 |
Total income tax expense provision from continuing operations | $ | 153,341 |  |  | $ | 98,136 |  |  | $ | 26,363 |
Reconciliation of Statutory Federal Income Tax Amount | A reconciliation of the statutory federal income tax amount to the recorded expense follows:
| 2014 |  | 2013 |  | 2012
| (In thousands)
Income from continuing operations before federal income taxes | $ | 400,744 |  |  | $ | 251,328 |  |  | $ | 98,199 |
Expected income tax at statutory rate | 140,259 |  |  | 87,965 |  |  | 34,370 |
State income taxes | 11,570 |  |  | 9,297 |  |  | 1,493 |
Other differences | 1,512 |  |  | 874 |  |  | 292 |
Changes in valuation allowance | — |  |  | — |  |  | (9,792 | )
Income tax expense recorded for continuing operations | $ | 153,341 |  |  | $ | 98,136 |  |  | $ | 26,363 |
Schedule of Deferred Tax Assets and Liabilities | The tax effects of temporary differences and net operating loss carryforwards, which give rise to deferred tax assets and liabilities at December 31, 2014, 2013 and 2012 are estimated as follows:
| 2014 |  | 2013 |  | 2012
| (In thousands)
Deferred tax assets: |  |  |  |  |
Net operating loss carryforward | $ | 1,091 |  |  | $ | 1,462 |  |  | $ | 1,513 |
FASB ASC 718 compensation expense | 1,562 |  |  | 634 |  |  | 762 |
AMT credit | 24,053 |  |  | 7,968 |  |  | 1,643 |
Charitable contributions carryover | 150 |  |  | 25 |  |  | 5 |
Unrealized loss on hedging activities | — |  |  | 8,540 |  |  | 3,836 |
Foreign tax credit carryforwards | 2,074 |  |  | 2,074 |  |  | 2,074 |
Accrued liabilities | 1,260 |  |  | — |  |  | — |
State net operating loss carryover | 2,627 |  |  | 4,408 |  |  | 4,315 |
Total deferred tax assets | 32,817 |  |  | 25,111 |  |  | 14,148 |
Valuation allowance for deferred tax assets | (3,145 | ) |  | (4,743 | ) |  | (4,629 | )
Deferred tax assets, net of valuation allowance | 29,672 |  |  | 20,368 |  |  | 9,519 |
Deferred tax liabilities: |  |  |  |  |
Oil and gas property basis difference | 183,767 |  |  | 72,173 |  |  | 15,049 |
Investment in pass through entities | 38,315 |  |  | 8,799 |  |  | 3,618 |
Non-oil and gas property basis difference | 849 |  |  | 249 |  |  | 227 |
Investment in nonconsolidated affiliates | — |  |  | 46,495 |  |  | 9,232 |
Unrealized gain on hedging activities | 37,006 |  |  | — |  |  | — |
Total deferred tax liabilities | 259,937 |  |  | 127,716 |  |  | 28,126 |
Net deferred tax liability | $ | (230,265 | ) |  | $ | (107,348 | ) |  | $ | (18,607 | )

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- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 + Details
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- Definition Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 + Details
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- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 + Details
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