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Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014
Line items in income statement impacted by reclassifications out of accumulated other comprehensive income |  |  |  |
Natural gas revenues | $ 222,963 | $ 347,970 | $ 807,960 | $ 1,218,540
Crude oil and condensate revenues | 59,014 | 82,563 | 202,804 | 228,047
Total before tax | (25,534) | 172,919 | (4,936) | 545,167
Tax benefit (expense) | 10,020 | (72,131) | 2,169 | (218,928)
NET INCOME (LOSS) | (15,514) | 100,788 | (2,767) | 326,239
Amount reclassified from accumulated other comprehensive income |  |  |  |
Line items in income statement impacted by reclassifications out of accumulated other comprehensive income |  |  |  |
Total before tax | 0 | (21,557) | 0 | (115,288)
Tax benefit (expense) | 0 | 8,592 | 0 | 45,951
NET INCOME (LOSS) | 0 | (12,965) | 0 | (69,337)
Gain (loss) on cash flow hedges | Amount reclassified from accumulated other comprehensive income | Commodity contracts |  |  |  |
Line items in income statement impacted by reclassifications out of accumulated other comprehensive income |  |  |  |
Natural gas revenues | 0 | (21,427) | 0 | (114,304)
Crude oil and condensate revenues | $ 0 | $ (130) | $ 0 | $ (984)

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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to 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 9 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Income Tax Expense (or Benefit) -URI http://asc.fasb.org/extlink&oid=6515339 + Details
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