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These taxes could include production, real estate, personal property, and pump tax.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.9) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 false2Property and other taxes183false 5us-gaap_AssetImpairmentChargesus-gaap_truedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse00USD$falsefalsefalse2truefalsefalse00USD$falsefalsefalse3truefalsefalse00USD$falsefalsefalse4truefalsefalse400000000400USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThe charge against earnings resulting from the aggregate write down of all assets from their carrying value to their fair value.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. 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This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. true2Net Income (Loss)192true 4us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Other Comprehensive Income(Loss), Net of Tax [Abstract]193false 5us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTaxus-gaap_truecreditdurationfalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse-1000000-1USD$falsefalsefalse2truefalsefalse00USD$falsefalsefalse3truefalsefalse-1000000-1USD$falsefalsefalse4truefalsefalse-1000000-1USD$falsefalsefalsexbrli:monetaryItemTypemonetaryNet of tax amount of the income statement impact of the reclassification adjustment of accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges realized in net income. 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