$ATO
ATMOS ENERGY CORP Stock $ato

$ato Overview Financials Valuation SEC Filings Company Website

2017 Q3 Form 10-Q Financial Statement

#000073180217000033 Filed on August 02, 2017

Income Statement

Concept	2017 Q3	2017 Q2	2016 Q2
Revenue	$464.9M	$526.5M	$456.2M
YoY Change	7.2%	15.41%	0.16%
Cost Of Revenue	$72.60M	$114.2M	$64.60M
YoY Change	13.62%	76.78%	-78.8%
Gross Profit	$392.3M	$412.3M	$391.6M
YoY Change	6.11%	5.28%	6.38%
Gross Profit Margin	84.39%	78.31%	85.84%
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$84.80M	$80.00M	$73.50M
YoY Change	10.99%	8.84%	7.3%
% of Gross Profit	21.62%	19.4%	18.77%
Operating Expenses	$300.5M	$271.6M	$270.1M
YoY Change	5.33%	0.54%	2.3%
Operating Profit	$91.79M	$140.7M	$128.4M
YoY Change	8.7%	9.55%	15.67%
Interest Expense	-$33.70M	$28.50M	$27.68M
YoY Change	12.33%	2.96%	-0.99%
% of Operating Profit	-36.71%	20.26%	21.56%
Other Income/Expense, Net	-$2.800M	-$289.0K	$1.118M
YoY Change	2700.0%	-125.85%	76.34%
Pretax Income	$55.30M	$111.9M	$101.8M
YoY Change	1.84%	9.86%	12.79%
Income Tax	$19.40M	$41.07M	$35.69M
% Of Pretax Income	35.08%	36.71%	35.05%
Net Earnings	$35.85M	$70.81M	$71.19M
YoY Change	4.71%	-0.54%	26.5%
Net Earnings / Revenue	7.71%	13.45%	15.61%
Basic Earnings Per Share			$0.69
Diluted Earnings Per Share	$336.1K	$665.4K	$0.69
COMMON SHARES
Basic Shares Outstanding	106.1M shares	105.3M shares	102.2M shares
Diluted Shares Outstanding

Balance Sheet

Concept	2017 Q3	2017 Q2	2016 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$114.8M	$70.00M	$66.00M
YoY Change	-4.51%	6.06%	53.49%
Cash & Equivalents	$26.41M	$69.78M	$66.21M
Short-Term Investments	$88.41M
Other Short-Term Assets	$106.3M	$62.73M	$60.50M
YoY Change	20.7%	3.67%	3.25%
Inventory	$185.0M	$152.0M	$245.0M
Prepaid Expenses	$32.16M
Receivables	$222.3M	$250.2M	$277.4M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$539.6M	$534.4M	$648.9M
YoY Change	-20.84%	-17.65%	5.23%
LONG-TERM ASSETS
Property, Plant & Equipment	$9.259B	$8.924B	$8.054B
YoY Change	11.97%	10.8%	11.67%
Goodwill	$730.1M	$729.7M	$742.7M
YoY Change	0.44%	-1.75%	0.09%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$220.6M	$310.3M	$282.2M
YoY Change	-27.66%	9.97%	-10.05%
Total Long-Term Assets	$10.21B	$9.964B	$9.078B
YoY Change	9.44%	9.76%	9.8%
TOTAL ASSETS
Total Short-Term Assets	$539.6M	$534.4M	$648.9M
Total Long-Term Assets	$10.21B	$9.964B	$9.078B
Total Assets	$10.75B	$10.50B	$9.727B
YoY Change	7.38%	7.93%	9.49%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$233.0M	$164.0M	$199.0M
YoY Change	18.88%	-17.59%	-12.33%
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$447.7M	$258.6M	$670.5M
YoY Change	-46.04%	-61.43%	166.08%
Long-Term Debt Due	$0.00	$0.00	$250.0M
YoY Change	-100.0%	-100.0%
Total Short-Term Liabilities	$1.013B	$745.7M	$1.530B
YoY Change	-43.33%	-51.26%	66.9%
LONG-TERM LIABILITIES
Long-Term Debt	$3.067B	$3.067B	$2.206B
YoY Change	40.13%	39.04%	-10.17%
Other Long-Term Liabilities	$175.7M	$169.1M	$228.8M
YoY Change	-28.38%	-26.08%	140.9%
Total Long-Term Liabilities	$3.243B	$3.236B	$2.434B
YoY Change	33.22%	32.92%	-4.54%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.013B	$745.7M	$1.530B
Total Long-Term Liabilities	$3.243B	$3.236B	$2.434B
Total Liabilities	$4.256B	$3.982B	$3.964B
YoY Change	0.8%	0.44%	14.35%
SHAREHOLDERS EQUITY
Retained Earnings	$1.467B	$1.480B	$1.273B
YoY Change	16.2%	16.26%	16.49%
Common Stock	$2.537B	$2.526B	$2.372B
YoY Change	6.21%	6.51%	7.44%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$3.899B	$3.902B	$3.467B
YoY Change
Total Liabilities & Shareholders Equity	$10.75B	$10.50B	$9.727B
YoY Change	7.38%	7.93%	9.49%

Cashflow Statement

Concept	2017 Q3	2017 Q2	2016 Q2
OPERATING ACTIVITIES
Net Income	$35.85M	$70.81M	$71.19M
YoY Change	4.71%	-0.54%	26.5%
Depreciation, Depletion And Amortization	$84.80M	$80.00M	$73.50M
YoY Change	10.99%	8.84%	7.3%
Cash From Operating Activities	$121.5M	$193.6M	$176.9M
YoY Change	-26.41%	9.44%	0.06%
INVESTING ACTIVITIES
Capital Expenditures	-$325.0M	-$252.7M	-$253.7M
YoY Change	9.32%	-0.39%	12.31%
Acquisitions
YoY Change
Other Investing Activities	$16.00M	$22.10M	$3.800M
YoY Change	1677.78%	481.58%	1800.0%
Cash From Investing Activities	-$308.9M	-$230.7M	-$249.9M
YoY Change	4.25%	-7.68%	10.77%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	144.1M	61.50M	91.20M
YoY Change	27.98%	-32.57%	-2705.71%
NET CHANGE
Cash From Operating Activities	121.5M	193.6M	176.9M
Cash From Investing Activities	-308.9M	-230.7M	-249.9M
Cash From Financing Activities	144.1M	61.50M	91.20M
Net Change In Cash	-43.30M	24.40M	18.20M
YoY Change	132.8%	34.07%	-134.8%
FREE CASH FLOW
Cash From Operating Activities	$121.5M	$193.6M	$176.9M
Capital Expenditures	-$325.0M	-$252.7M	-$253.7M
Free Cash Flow	$446.5M	$446.3M	$430.6M
YoY Change	-3.44%	3.65%	6.93%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	ato	Cash Flow Hedge Gain Loss Reclassifiedto Purchased Gas Cost Net CashFlowHedgeGainLossReclassifiedtoPurchasedGasCostNet	-48015000	USD
CY2017Q2	ato	Cash Flow Hedge Gain Loss Reclassifiedto Purchased Gas Cost Net CashFlowHedgeGainLossReclassifiedtoPurchasedGasCostNet	0	USD
	ato	Cash Flow Hedge Gain Loss Reclassifiedto Purchased Gas Cost Net CashFlowHedgeGainLossReclassifiedtoPurchasedGasCostNet	-2612000	USD
CY2017Q2	ato	Debt And Equity Securities Authorized For Issuance DebtAndEquitySecuritiesAuthorizedForIssuance	2500000000.0	USD
CY2017Q2	ato	Debt And Equity Securities Available For Issuance DebtAndEquitySecuritiesAvailableForIssuance	1600000000	USD
CY2016Q3	ato	Derivative Asset Contract Netting DerivativeAssetContractNetting	39290000	USD
CY2017Q2	ato	Derivative Asset Contract Netting DerivativeAssetContractNetting	0	USD
	ato	Atm Equity Distribution Gross Proceeds ATMEquityDistributionGrossProceeds	100000000.0	USD
	ato	Atm Equity Distribution Net Proceeds ATMEquityDistributionNetProceeds	98800000	USD
CY2017Q2	ato	Atm Equity Distribution Offering Price Maximum Amount ATMEquityDistributionOfferingPriceMaximumAmount	200000000	USD
	ato	Atm Equity Distribution Shares Issued ATMEquityDistributionSharesIssued	1303494	shares
CY2017Q2	ato	Accumulated Other Comprehensive Income Loss Derivatives Qualifyingas Hedges Interest Rate Agreements Realized Gain Loss Netof Tax AccumulatedOtherComprehensiveIncomeLossDerivativesQualifyingasHedgesInterestRateAgreementsRealizedGainLossNetofTax	-41500000	USD
CY2016Q3	ato	Available For Sale Securities Supplemental Executive Benefit Plans AvailableForSaleSecuritiesSupplementalExecutiveBenefitPlans	41300000	USD
CY2017Q2	ato	Available For Sale Securities Supplemental Executive Benefit Plans AvailableForSaleSecuritiesSupplementalExecutiveBenefitPlans	42300000	USD
CY2016Q2	ato	Cash Flow Hedge Gain Loss Impacton Earnings CashFlowHedgeGainLossImpactonEarnings	-12418000	USD
	ato	Cash Flow Hedge Gain Loss Impacton Earnings CashFlowHedgeGainLossImpactonEarnings	-48341000	USD
CY2017Q2	ato	Cash Flow Hedge Gain Loss Impacton Earnings CashFlowHedgeGainLossImpactonEarnings	-177000	USD
	ato	Cash Flow Hedge Gain Loss Impacton Earnings CashFlowHedgeGainLossImpactonEarnings	7628000	USD
CY2016Q2	ato	Cash Flow Hedge Gain Loss Included In Cost Of Sales Net CashFlowHedgeGainLossIncludedInCostOfSalesNet	-12281000	USD
	ato	Cash Flow Hedge Gain Loss Included In Cost Of Sales Net CashFlowHedgeGainLossIncludedInCostOfSalesNet	-47931000	USD
CY2017Q2	ato	Cash Flow Hedge Gain Loss Included In Cost Of Sales Net CashFlowHedgeGainLossIncludedInCostOfSalesNet	0	USD
	ato	Cash Flow Hedge Gain Loss Included In Cost Of Sales Net CashFlowHedgeGainLossIncludedInCostOfSalesNet	8078000	USD
CY2016Q2	ato	Cash Flow Hedge Gain Loss Reclassifiedto Purchased Gas Cost Net CashFlowHedgeGainLossReclassifiedtoPurchasedGasCostNet	-12347000	USD
CY2016Q3	ato	Derivative Asset Netof Contract Netting DerivativeAssetNetofContractNetting	4851000	USD
CY2017Q2	ato	Derivative Asset Netof Contract Netting DerivativeAssetNetofContractNetting	3228000	USD
CY2016Q3	ato	Derivative Cash Collateral DerivativeCashCollateral	50400000	USD
CY2016Q3	ato	Derivative Liability Contract Netting DerivativeLiabilityContractNetting	39290000	USD
CY2017Q2	ato	Derivative Liability Contract Netting DerivativeLiabilityContractNetting	0	USD
CY2016Q3	ato	Derivative Liability Netof Contract Netting DerivativeLiabilityNetofContractNetting	284394000	USD
CY2017Q2	ato	Derivative Liability Netof Contract Netting DerivativeLiabilityNetofContractNetting	109372000	USD
CY2017Q1	ato	Disposal Group Including Discontinued Operation Cash Purchase Price DisposalGroupIncludingDiscontinuedOperationCashPurchasePrice	38300000	USD
CY2017Q1	ato	Disposal Group Including Discontinued Operation Consideration Placedin Escrow DisposalGroupIncludingDiscontinuedOperationConsiderationPlacedinEscrow	7000000	USD
CY2017Q1	ato	Disposal Group Including Discontinued Operation Working Capital Adjustment DisposalGroupIncludingDiscontinuedOperationWorkingCapitalAdjustment	109000000	USD
CY2017Q2	ato	Expected Recognitionin Earningsof Deferred Gain Losses Interest Rate Agreements ExpectedRecognitioninEarningsofDeferredGainLossesInterestRateAgreements	-41510000	USD
CY2016Q2	ato	Fair Value Hedge Basis Ineffectiveness FairValueHedgeBasisIneffectiveness	684000	USD
	ato	Fair Value Hedge Basis Ineffectiveness FairValueHedgeBasisIneffectiveness	1490000	USD
CY2017Q2	ato	Fair Value Hedge Basis Ineffectiveness FairValueHedgeBasisIneffectiveness	0	USD
	ato	Fair Value Hedge Basis Ineffectiveness FairValueHedgeBasisIneffectiveness	597000	USD
CY2016Q2	ato	Fair Value Hedge Timing Ineffectiveness FairValueHedgeTimingIneffectiveness	-14168000	USD
	ato	Fair Value Hedge Timing Ineffectiveness FairValueHedgeTimingIneffectiveness	-19534000	USD
CY2017Q2	ato	Fair Value Hedge Timing Ineffectiveness FairValueHedgeTimingIneffectiveness	0	USD
	ato	Fair Value Hedge Timing Ineffectiveness FairValueHedgeTimingIneffectiveness	-3888000	USD
CY2016Q2	ato	Gain Loss On Hedge Ineffectiveness GainLossOnHedgeIneffectiveness	13600000	USD
	ato	Gain Loss On Hedge Ineffectiveness GainLossOnHedgeIneffectiveness	18100000	USD
	ato	Gain Loss On Hedge Ineffectiveness GainLossOnHedgeIneffectiveness	3400000	USD
	ato	Hedge Percentage Of Actual Heating Season Gas HedgePercentageOfActualHeatingSeasonGas	0.27
	ato	Hedge Volume Of Actual Heating Season Gas HedgeVolumeOfActualHeatingSeasonGas	16200	MMcf
CY2016Q3	ato	Hedged Portion Of Gas Stored Underground Fair Value Disclosure HedgedPortionOfGasStoredUndergroundFairValueDisclosure	52578000	USD
CY2016Q2	ato	Incomefromcontinuingoperationsavailabletocommonshareholders Incomefromcontinuingoperationsavailabletocommonshareholders	66043000	USD
	ato	Incomefromcontinuingoperationsavailabletocommonshareholders Incomefromcontinuingoperationsavailabletocommonshareholders	310204000	USD
CY2017Q2	ato	Incomefromcontinuingoperationsavailabletocommonshareholders Incomefromcontinuingoperationsavailabletocommonshareholders	70733000	USD
	ato	Incomefromcontinuingoperationsavailabletocommonshareholders Incomefromcontinuingoperationsavailabletocommonshareholders	346434000	USD
CY2016Q2	ato	Incomefromdiscontinuedoperationsnetoftaxbeforegainondisposal Incomefromdiscontinuedoperationsnetoftaxbeforegainondisposal	5050000	USD
	ato	Incomefromdiscontinuedoperationsnetoftaxbeforegainondisposal Incomefromdiscontinuedoperationsnetoftaxbeforegainondisposal	5172000	USD
CY2017Q2	ato	Incomefromdiscontinuedoperationsnetoftaxbeforegainondisposal Incomefromdiscontinuedoperationsnetoftaxbeforegainondisposal	0	USD
	ato	Incomefromdiscontinuedoperationsnetoftaxbeforegainondisposal Incomefromdiscontinuedoperationsnetoftaxbeforegainondisposal	10994000	USD
CY2016Q3	ato	Intercompany Payables IntercompanyPayables	0	USD
CY2017Q2	ato	Intercompany Payables IntercompanyPayables	0	USD
CY2016Q3	ato	Intercompany Receivables IntercompanyReceivables	0	USD
CY2017Q2	ato	Intercompany Receivables IntercompanyReceivables	0	USD
CY2016Q3	ato	Investment In Subsidaries InvestmentInSubsidaries	0	USD
CY2017Q2	ato	Investment In Subsidaries InvestmentInSubsidaries	0	USD
CY2017Q2	ato	Lossonsettlementofinterestrateswaps Lossonsettlementofinterestrateswaps	37000000	USD
	ato	Maximum Hedge Percentage Of Anticipated Heating Season Gas MaximumHedgePercentageOfAnticipatedHeatingSeasonGas	0.5
	ato	Minimum Hedge Percentage Of Anticipated Heating Season Gas MinimumHedgePercentageOfAnticipatedHeatingSeasonGas	0.25
CY2016Q2	ato	Net Income Loss From Discontinued Operations Available To Common Stockholders Basic NetIncomeLossFromDiscontinuedOperationsAvailableToCommonStockholdersBasic	5044000	USD
	ato	Net Income Loss From Discontinued Operations Available To Common Stockholders Basic NetIncomeLossFromDiscontinuedOperationsAvailableToCommonStockholdersBasic	5168000	USD
CY2017Q2	ato	Net Income Loss From Discontinued Operations Available To Common Stockholders Basic NetIncomeLossFromDiscontinuedOperationsAvailableToCommonStockholdersBasic	0	USD
	ato	Net Income Loss From Discontinued Operations Available To Common Stockholders Basic NetIncomeLossFromDiscontinuedOperationsAvailableToCommonStockholdersBasic	13695000	USD
	ato	Nonregulated Segment Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate NonregulatedSegmentEffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.39
	ato	Nonregulated Segment Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate NonregulatedSegmentEffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.39
CY2017Q2	ato	Number Of Customers Regulated Distribution NumberOfCustomersRegulatedDistribution	3000000	customers
CY2017Q2	ato	Number Of Divisions Regulated Distribution NumberOfDivisionsRegulatedDistribution	6	regulated_gas_distributions_divisions
CY2016Q2	ato	Other Comprehensive Income Reclassification Adjustment On Forward Commodity Contracts Included In Net Income Net Of Tax OtherComprehensiveIncomeReclassificationAdjustmentOnForwardCommodityContractsIncludedInNetIncomeNetOfTax	7532000	USD
	ato	Other Comprehensive Income Reclassification Adjustment On Forward Commodity Contracts Included In Net Income Net Of Tax OtherComprehensiveIncomeReclassificationAdjustmentOnForwardCommodityContractsIncludedInNetIncomeNetOfTax	29290000	USD
CY2017Q2	ato	Other Comprehensive Income Reclassification Adjustment On Forward Commodity Contracts Included In Net Income Net Of Tax OtherComprehensiveIncomeReclassificationAdjustmentOnForwardCommodityContractsIncludedInNetIncomeNetOfTax	0	USD
	ato	Other Comprehensive Income Reclassification Adjustment On Forward Commodity Contracts Included In Net Income Net Of Tax OtherComprehensiveIncomeReclassificationAdjustmentOnForwardCommodityContractsIncludedInNetIncomeNetOfTax	-4865000	USD
CY2016Q2	ato	Other Comprehensive Income Reclassification Adjustment On Interest Rate Agreements Included In Net Income Net Of Tax OtherComprehensiveIncomeReclassificationAdjustmentOnInterestRateAgreementsIncludedInNetIncomeNetOfTax	87000	USD
	ato	Other Comprehensive Income Reclassification Adjustment On Interest Rate Agreements Included In Net Income Net Of Tax OtherComprehensiveIncomeReclassificationAdjustmentOnInterestRateAgreementsIncludedInNetIncomeNetOfTax	260000	USD
CY2017Q2	ato	Other Comprehensive Income Reclassification Adjustment On Interest Rate Agreements Included In Net Income Net Of Tax OtherComprehensiveIncomeReclassificationAdjustmentOnInterestRateAgreementsIncludedInNetIncomeNetOfTax	113000	USD
	ato	Other Comprehensive Income Reclassification Adjustment On Interest Rate Agreements Included In Net Income Net Of Tax OtherComprehensiveIncomeReclassificationAdjustmentOnInterestRateAgreementsIncludedInNetIncomeNetOfTax	286000	USD
CY2016Q2	ato	Other Comprehensive Income Unrealized Gain Loss On Forward Commodity Contracts Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnForwardCommodityContractsArisingDuringPeriodNetOfTax	10573000	USD
	ato	Other Comprehensive Income Unrealized Gain Loss On Forward Commodity Contracts Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnForwardCommodityContractsArisingDuringPeriodNetOfTax	-8612000	USD
CY2017Q2	ato	Other Comprehensive Income Unrealized Gain Loss On Forward Commodity Contracts Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnForwardCommodityContractsArisingDuringPeriodNetOfTax	0	USD
	ato	Other Comprehensive Income Unrealized Gain Loss On Forward Commodity Contracts Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnForwardCommodityContractsArisingDuringPeriodNetOfTax	9847000	USD
CY2016Q2	ato	Other Comprehensive Income Unrealized Gain Loss On Interest Rate Agreements Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnInterestRateAgreementsArisingDuringPeriodNetOfTax	-39337000	USD
	ato	Other Comprehensive Income Unrealized Gain Loss On Interest Rate Agreements Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnInterestRateAgreementsArisingDuringPeriodNetOfTax	-88345000	USD
CY2017Q2	ato	Other Comprehensive Income Unrealized Gain Loss On Interest Rate Agreements Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnInterestRateAgreementsArisingDuringPeriodNetOfTax	-18669000	USD
	ato	Other Comprehensive Income Unrealized Gain Loss On Interest Rate Agreements Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnInterestRateAgreementsArisingDuringPeriodNetOfTax	76602000	USD
	ato	Paymentsfor Proceedsfrom Hedge Financing Activities Cash Collateral PaymentsforProceedsfromHedgeFinancingActivitiesCashCollateral	16330000	USD
	ato	Paymentsfor Proceedsfrom Hedge Financing Activities Cash Collateral PaymentsforProceedsfromHedgeFinancingActivitiesCashCollateral	-25670000	USD
	ato	Proceeds From Use Tax Refund Investing Activities ProceedsFromUseTaxRefundInvestingActivities	0	USD
	ato	Proceeds From Use Tax Refund Investing Activities ProceedsFromUseTaxRefundInvestingActivities	18562000	USD
	ato	Regulated Segments Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate RegulatedSegmentsEffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.37
	ato	Regulated Segments Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate RegulatedSegmentsEffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.37
CY2016Q3	ato	Regulatory Asset Future Recoverable Pension Costs RegulatoryAssetFutureRecoverablePensionCosts	12400000	USD
CY2017Q2	ato	Regulatory Asset Future Recoverable Pension Costs RegulatoryAssetFutureRecoverablePensionCosts	11500000	USD
CY2016Q3	ato	Regulatory Cost Of Removal Liability RegulatoryCostOfRemovalLiability	424281000	USD
CY2017Q2	ato	Regulatory Cost Of Removal Liability RegulatoryCostOfRemovalLiability	457060000	USD
CY2016Q3	ato	Regulatory Cost Of Removal Obligation RegulatoryCostOfRemovalObligation	424281000	USD
CY2017Q2	ato	Regulatory Cost Of Removal Obligation RegulatoryCostOfRemovalObligation	457060000	USD
CY2016Q3	ato	Segment Reporting Information Other Current Assets SegmentReportingInformationOtherCurrentAssets	483035000	USD
CY2017Q2	ato	Segment Reporting Information Other Current Assets SegmentReportingInformationOtherCurrentAssets	464605000	USD
CY2016Q3	ato	Segment Reporting Information Other Current Liabilities SegmentReportingInformationOtherCurrentLiabilities	635570000	USD
CY2017Q2	ato	Segment Reporting Information Other Current Liabilities SegmentReportingInformationOtherCurrentLiabilities	487086000	USD
CY2016Q3	ato	Segment Reporting Information Other Noncurrent Assets SegmentReportingInformationOtherNoncurrentAssets	305019000	USD
CY2017Q2	ato	Segment Reporting Information Other Noncurrent Assets SegmentReportingInformationOtherNoncurrentAssets	310339000	USD
CY2016Q3	ato	Segment Reporting Information Other Noncurrent Liabilities SegmentReportingInformationOtherNoncurrentLiabilities	245374000	USD
CY2017Q2	ato	Segment Reporting Information Other Noncurrent Liabilities SegmentReportingInformationOtherNoncurrentLiabilities	169129000	USD
CY2017Q2	ato	Term Loan Agreement Amount Outstanding TermLoanAgreementAmountOutstanding	125000000	USD
CY2017Q2	ato	Term Loan Agreement Incremental Borrowings TermLoanAgreementIncrementalBorrowings	1000000	USD
CY2017Q2	ato	Term Loan Agreement Maximum Borrowing Capacity TermLoanAgreementMaximumBorrowingCapacity	200000000	USD
CY2016Q2	ato	Undistributed Earnings From Discontinued Operations Allocated To Participating Securities UndistributedEarningsFromDiscontinuedOperationsAllocatedToParticipatingSecurities	6000	USD
	ato	Undistributed Earnings From Discontinued Operations Allocated To Participating Securities UndistributedEarningsFromDiscontinuedOperationsAllocatedToParticipatingSecurities	4000	USD
CY2017Q2	ato	Undistributed Earnings From Discontinued Operations Allocated To Participating Securities UndistributedEarningsFromDiscontinuedOperationsAllocatedToParticipatingSecurities	0	USD
	ato	Undistributed Earnings From Discontinued Operations Allocated To Participating Securities UndistributedEarningsFromDiscontinuedOperationsAllocatedToParticipatingSecurities	15000	USD
	dei	Amendment Flag AmendmentFlag	false
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--09-30
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2017
	dei	Document Period End Date DocumentPeriodEndDate	2017-06-30
	dei	Document Type DocumentType	10-Q
	dei	Entity Central Index Key EntityCentralIndexKey	0000731802
	us-gaap	Change In Unrealized Gain Loss On Hedged Item In Fair Value Hedge1 ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge1	12858000	USD
CY2017Q3	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	106065596	shares
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Registrant Name EntityRegistrantName	Atmos Energy Corporation
CY2016Q3	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	196485000	USD
CY2017Q2	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	164365000	USD
CY2016Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	215880000	USD
CY2017Q2	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	250224000	USD
CY2016Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-188022000	USD
CY2017Q2	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-104599000	USD
CY2016Q3	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	2388027000	USD
CY2017Q2	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	2525752000	USD
CY2016Q3	us-gaap	Assets Assets	10010889000	USD
CY2017Q2	us-gaap	Assets Assets	10498775000	USD
CY2016Q3	us-gaap	Assets Current AssetsCurrent	681686000	USD
CY2017Q2	us-gaap	Assets Current AssetsCurrent	534382000	USD
CY2016Q3	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	136905000	USD
CY2017Q2	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	92839000	USD
CY2016Q3	us-gaap	Assets Of Disposal Group Including Discontinued Operation Current AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent	151117000	USD
CY2017Q2	us-gaap	Assets Of Disposal Group Including Discontinued Operation Current AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent	0	USD
CY2016Q3	us-gaap	Available For Sale Securities AvailableForSaleSecurities	72701000	USD
CY2017Q2	us-gaap	Available For Sale Securities AvailableForSaleSecurities	89611000	USD
CY2016Q3	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	7729000	USD
CY2017Q2	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	9658000	USD
CY2016Q3	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	600000	USD
CY2017Q2	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	83000	USD
CY2016Q3	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	65572000	USD
CY2017Q2	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	80036000	USD
CY2016Q3	us-gaap	Capitalization Longterm Debt And Equity CapitalizationLongtermDebtAndEquity	5651838000	USD
CY2017Q2	us-gaap	Capitalization Longterm Debt And Equity CapitalizationLongtermDebtAndEquity	6968444000	USD
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CY2016Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	66206000	USD
CY2016Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	47534000	USD
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CY2017Q2	us-gaap	Change In Unrealized Gain Loss On Fair Value Hedging Instruments1 ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1	0	USD
	us-gaap	Change In Unrealized Gain Loss On Fair Value Hedging Instruments1 ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1	-9567000	USD
CY2016Q2	us-gaap	Change In Unrealized Gain Loss On Hedged Item In Fair Value Hedge1 ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge1	35630000	USD
	us-gaap	Change In Unrealized Gain Loss On Hedged Item In Fair Value Hedge1 ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge1	29852000	USD
CY2017Q2	us-gaap	Change In Unrealized Gain Loss On Hedged Item In Fair Value Hedge1 ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge1	0	USD
CY2016Q3	us-gaap	Commercial Paper CommercialPaper	829800000	USD
CY2017Q2	us-gaap	Commercial Paper CommercialPaper	258600000	USD
CY2016Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.42
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.26
CY2017Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.45
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.35
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CY2017Q2	us-gaap	Common Stock No Par Value CommonStockNoParValue	0.005
CY2016Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	200000000	shares
CY2017Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	200000000	shares
CY2016Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	103930560	shares
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CY2016Q3	us-gaap	Common Stock Value CommonStockValue	520000	USD
CY2017Q2	us-gaap	Common Stock Value CommonStockValue	530000	USD
CY2016Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	50199000	USD
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CY2016Q2	us-gaap	Cost Of Natural Gas Purchases CostOfNaturalGasPurchases	64583000	USD
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CY2016Q3	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	2460000000	USD
CY2016Q3	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	2460000000	USD
CY2017Q2	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	3085000000	USD
CY2017Q2	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	3085000000	USD
CY2016Q3	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	2844990000	USD
CY2017Q2	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	3388003000	USD
CY2016Q3	us-gaap	Debt Instrument Unamortized Discount Premium Net DebtInstrumentUnamortizedDiscountPremiumNet	4270000	USD
CY2017Q2	us-gaap	Debt Instrument Unamortized Discount Premium Net DebtInstrumentUnamortizedDiscountPremiumNet	-4370000	USD
CY2016Q3	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	16951000	USD
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	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	234833000	USD
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CY2016Q3	us-gaap	Derivative Assets DerivativeAssets	11626000	USD
CY2017Q2	us-gaap	Derivative Assets DerivativeAssets	3228000	USD
CY2016Q3	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	6775000	USD
CY2016Q3	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	6800000	USD
CY2017Q2	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	0	USD
CY2016Q3	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	44141000	USD
CY2017Q2	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	3228000	USD
CY2016Q3	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	323684000	USD
CY2017Q2	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	109372000	USD
CY2016Q2	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	1900000	USD
	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	-2800000	USD
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CY2016Q3	us-gaap	Derivative Liabilities DerivativeLiabilities	240819000	USD
CY2017Q2	us-gaap	Derivative Liabilities DerivativeLiabilities	109372000	USD
CY2016Q3	us-gaap	Derivative Liability Collateral Right To Reclaim Cash Offset DerivativeLiabilityCollateralRightToReclaimCashOffset	43600000	USD
CY2016Q3	us-gaap	Derivative Liability Collateral Right To Reclaim Cash Offset DerivativeLiabilityCollateralRightToReclaimCashOffset	43575000	USD
CY2017Q2	us-gaap	Derivative Liability Collateral Right To Reclaim Cash Offset DerivativeLiabilityCollateralRightToReclaimCashOffset	0	USD
CY2016Q3	us-gaap	Derivative Liability Fair Value Gross Asset And Right To Reclaim Cash Offset DerivativeLiabilityFairValueGrossAssetAndRightToReclaimCashOffset	82865000	USD
CY2017Q2	us-gaap	Derivative Liability Fair Value Gross Asset And Right To Reclaim Cash Offset DerivativeLiabilityFairValueGrossAssetAndRightToReclaimCashOffset	0	USD
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	us-gaap	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax Per Diluted Share DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTaxPerDilutedShare	0.03
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	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	3495000	USD
	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	6841000	USD
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	us-gaap	Discontinued Operation Tax Effect Of Income Loss From Disposal Of Discontinued Operation DiscontinuedOperationTaxEffectOfIncomeLossFromDisposalOfDiscontinuedOperation	0	USD
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	us-gaap	Discontinued Operation Tax Effect Of Income Loss From Disposal Of Discontinued Operation DiscontinuedOperationTaxEffectOfIncomeLossFromDisposalOfDiscontinuedOperation	10215000	USD
CY2016Q3	us-gaap	Disposal Group Including Discontinued Operation Assets Noncurrent DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent	28616000	USD
CY2017Q2	us-gaap	Disposal Group Including Discontinued Operation Assets Noncurrent DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent	0	USD
CY2017Q1	us-gaap	Disposal Group Including Discontinued Operation Consideration DisposalGroupIncludingDiscontinuedOperationConsideration	147300000	USD
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	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	3.06
CY2017Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.67
	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	3.40
CY2016Q3	us-gaap	Energy Related Inventory Gas Stored Underground EnergyRelatedInventoryGasStoredUnderground	179070000	USD
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CY2016Q2	us-gaap	Gain Loss On Cash Flow Hedge Ineffectiveness Net GainLossOnCashFlowHedgeIneffectivenessNet	66000	USD
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CY2017Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	0	USD
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CY2016Q2	us-gaap	Gain Loss On Fair Value Hedges Recognized In Earnings GainLossOnFairValueHedgesRecognizedInEarnings	13484000	USD
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CY2017Q2	us-gaap	Gain Loss On Fair Value Hedges Recognized In Earnings GainLossOnFairValueHedgesRecognizedInEarnings	0	USD
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CY2016Q3	us-gaap	Goodwill Goodwill	726962000	USD
CY2017Q2	us-gaap	Goodwill Goodwill	729673000	USD
CY2016Q2	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	66143000	USD
	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	310692000	USD
CY2017Q2	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	70808000	USD
	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	346858000	USD
CY2016Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	101835000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	487916000	USD
CY2017Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	111877000	USD
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	us-gaap	Income Loss From Continuing Operations Per Basic And Diluted Share IncomeLossFromContinuingOperationsPerBasicAndDilutedShare	3.01
CY2017Q2	us-gaap	Income Loss From Continuing Operations Per Basic And Diluted Share IncomeLossFromContinuingOperationsPerBasicAndDilutedShare	0.67
	us-gaap	Income Loss From Continuing Operations Per Basic And Diluted Share IncomeLossFromContinuingOperationsPerBasicAndDilutedShare	3.27
CY2016Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	5050000	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	13710000	USD
CY2016Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	35692000	USD
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CY2017Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	41069000	USD
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	us-gaap	Increase Decrease In Commodity Contract Assets And Liabilities IncreaseDecreaseInCommodityContractAssetsAndLiabilities	-7973000	USD
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	us-gaap	Increase Decrease In Operating Assets IncreaseDecreaseInOperatingAssets	96033000	USD
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CY2016Q2	us-gaap	Interest Expense InterestExpense	27679000	USD
	us-gaap	Interest Expense InterestExpense	84775000	USD
CY2017Q2	us-gaap	Interest Expense InterestExpense	28498000	USD
	us-gaap	Interest Expense InterestExpense	86472000	USD
CY2016Q2	us-gaap	Interest Rate Cash Flow Hedge Gain Loss Reclassified To Earnings Net InterestRateCashFlowHedgeGainLossReclassifiedToEarningsNet	-137000	USD
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CY2017Q2	us-gaap	Interest Rate Cash Flow Hedge Gain Loss Reclassified To Earnings Net InterestRateCashFlowHedgeGainLossReclassifiedToEarningsNet	-177000	USD
	us-gaap	Interest Rate Cash Flow Hedge Gain Loss Reclassified To Earnings Net InterestRateCashFlowHedgeGainLossReclassifiedToEarningsNet	-450000	USD
CY2016Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	10010889000	USD
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CY2016Q3	us-gaap	Liabilities Current LiabilitiesCurrent	1788281000	USD
CY2017Q2	us-gaap	Liabilities Current LiabilitiesCurrent	745659000	USD
CY2016Q3	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation Current LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent	72900000	USD
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CY2016Q3	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation Noncurrent LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent	316000	USD
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CY2017Q2	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	1500000000	USD
CY2016Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	250000000	USD
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CY2016Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2188779000	USD
CY2017Q2	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	3066734000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	191006000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	24037000	USD
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CY2016Q2	us-gaap	Net Income Loss NetIncomeLoss	71193000	USD
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CY2017Q2	us-gaap	Net Income Loss NetIncomeLoss	70808000	USD
	us-gaap	Net Income Loss NetIncomeLoss	360568000	USD
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CY2016Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	128396000	USD
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CY2017Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	140664000	USD
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CY2016Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	305019000	USD
CY2017Q2	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	310339000	USD
CY2016Q2	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	151000	USD
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CY2016Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	110000	USD
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CY2017Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	490000	USD
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CY2016Q3	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	439085000	USD
CY2017Q2	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	322721000	USD
CY2016Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	245374000	USD
CY2017Q2	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	169129000	USD
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-14430000	USD
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-14892000	USD
CY2016Q2	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	1118000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-90000	USD
CY2017Q2	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-289000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-450000	USD
CY2016Q2	us-gaap	Other Selling General And Administrative Expense OtherSellingGeneralAndAdministrativeExpense	131388000	USD
	us-gaap	Other Selling General And Administrative Expense OtherSellingGeneralAndAdministrativeExpense	379073000	USD
CY2017Q2	us-gaap	Other Selling General And Administrative Expense OtherSellingGeneralAndAdministrativeExpense	128690000	USD
	us-gaap	Other Selling General And Administrative Expense OtherSellingGeneralAndAdministrativeExpense	385867000	USD
	us-gaap	Payments For Proceeds From Hedge Financing Activities PaymentsForProceedsFromHedgeFinancingActivities	0	USD
	us-gaap	Payments For Proceeds From Hedge Financing Activities PaymentsForProceedsFromHedgeFinancingActivities	36996000	USD
	us-gaap	Payments For Proceeds From Investments PaymentsForProceedsFromInvestments	-558000	USD
	us-gaap	Payments For Proceeds From Investments PaymentsForProceedsFromInvestments	14329000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-5731000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-6435000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	130363000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	143075000	USD
	us-gaap	Payments To Acquire Oil And Gas Equipment PaymentsToAcquireOilAndGasEquipment	86128000	USD
CY2016Q2	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	253684000	USD
	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	789688000	USD
CY2017Q2	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	252763000	USD
	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	812148000	USD
CY2016Q3	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	297743000	USD
CY2017Q2	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	304919000	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	98660000	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	98755000	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	884911000	USD
	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	26500000	USD
	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	22673000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	0	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-6663000	USD
	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	212539000	USD
	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-571238000	USD
CY2016Q3	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	1873900000	USD
CY2017Q2	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	2028041000	USD
CY2016Q3	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	8268606000	USD
CY2017Q2	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	8924381000	USD
CY2016Q3	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	10142506000	USD
CY2017Q2	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	10952422000	USD
CY2016Q2	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	456212000	USD
CY2017Q2	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	75000	USD
	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	2021005000	USD
CY2017Q2	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	526501000	USD
	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	2294855000	USD
CY2016Q3	us-gaap	Regulatory Assets RegulatoryAssets	263623000	USD
CY2017Q2	us-gaap	Regulatory Assets RegulatoryAssets	216832000	USD
CY2016Q3	us-gaap	Regulatory Liabilities RegulatoryLiabilities	514725000	USD
CY2017Q2	us-gaap	Regulatory Liabilities RegulatoryLiabilities	529290000	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	0	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	250000000	USD
CY2016Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1262534000	USD
CY2017Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1480027000	USD
CY2016Q3	us-gaap	Short Term Borrowings ShortTermBorrowings	829811000	USD
CY2017Q2	us-gaap	Short Term Borrowings ShortTermBorrowings	258573000	USD
CY2016Q3	us-gaap	Stockholders Equity StockholdersEquity	3463059000	USD
CY2017Q2	us-gaap	Stockholders Equity StockholdersEquity	3901710000	USD
CY2016Q2	us-gaap	Taxes Other TaxesOther	58965000	USD
	us-gaap	Taxes Other TaxesOther	171959000	USD
CY2017Q2	us-gaap	Taxes Other TaxesOther	62948000	USD
	us-gaap	Taxes Other TaxesOther	185611000	USD
CY2016Q2	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	100000	USD
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	488000	USD
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	424000	USD
CY2016Q2	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	103750000	shares
	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	103137000	shares
CY2017Q2	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	106364000	shares
	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	105862000	shares
	us-gaap	Business Acquisition Description Of Acquired Entity BusinessAcquisitionDescriptionOfAcquiredEntity	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-top:6px;text-indent:30px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">On </font><font style="font-family:inherit;font-size:10pt;">December 20, 2016</font><font style="font-family:inherit;font-size:10pt;">, we executed a purchase and sale agreement to acquire the general partnership and limited partnership interests in EnLink North Texas Pipeline, LP (EnLink Pipeline) from EnLink Energy GP, LLC and EnLink Midstream Operating, LP for a cash purchase price of </font><font style="font-family:inherit;font-size:10pt;">$85 million</font><font style="font-family:inherit;font-size:10pt;">, plus working capital of </font><font style="font-family:inherit;font-size:10pt;">$1.1 million</font><font style="font-family:inherit;font-size:10pt;">.</font></div><div style="line-height:120%;padding-top:6px;text-indent:30px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">EnLink Pipeline's primary asset was a 140–mile natural gas pipeline located on the north side of the Dallas–Fort Worth Metroplex. The </font><font style="font-family:inherit;font-size:10pt;">$85 million</font><font style="font-family:inherit;font-size:10pt;"> purchase price has been allocated, based on fair value using observable market inputs, to the net book value of the acquired pipeline. </font></div></div>
	us-gaap	Nature Of Operations NatureOfOperations	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Nature of Business</font></div><div style="line-height:120%;padding-top:6px;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Atmos Energy Corporation (“Atmos Energy” or the “Company”) is engaged in the regulated natural gas distribution and pipeline and storage businesses. Our regulated businesses are subject to federal and state regulation and/or regulation by local authorities in each of the states in which our regulated divisions and subsidiaries operate.</font></div><div style="line-height:120%;padding-top:6px;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Our distribution business delivers natural gas through sales and transportation arrangements to approximately </font><font style="font-family:inherit;font-size:10pt;">three million</font><font style="font-family:inherit;font-size:10pt;"> residential, commercial, public authority and industrial customers through our </font><font style="font-family:inherit;font-size:10pt;">six</font><font style="font-family:inherit;font-size:10pt;"> natural gas distribution divisions, which at </font><font style="font-family:inherit;font-size:10pt;">June 30, 2017</font><font style="font-family:inherit;font-size:10pt;">, covered service areas located in </font><font style="font-family:inherit;font-size:10pt;">eight</font><font style="font-family:inherit;font-size:10pt;"> states. </font></div><div style="line-height:120%;padding-top:6px;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Our pipeline and storage business includes the transportation of natural gas to Texas and Louisiana distribution systems and the management of our underground storage facilities used to support Texas distribution businesses.</font></div><div style="line-height:120%;padding-top:6px;text-indent:30px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Effective January 1, 2017, we completed the sale of all of the equity interests of Atmos Energy Marketing (AEM) to CenterPoint Energy Services, Inc., a subsidiary of CenterPoint Energy, Inc. (CES). Accordingly, AEM’s historical financial results are reflected in the Company’s condensed consolidated financial statements as discontinued operations, which required retrospective application to financial information for all periods presented. Refer to Note 6 for further information. Our discontinued natural gas marketing segment was primarily engaged in a nonregulated natural gas marketing business, conducted by AEM. This business provided natural gas management and transportation services to municipalities, regulated distribution companies, including certain divisions of Atmos Energy and third parties.</font></div></div>

Files In Submission

Name	View Source	Status
0000731802-17-000033-index-headers.html	Edgar Link	pending
0000731802-17-000033-index.html	Edgar Link	pending
0000731802-17-000033.txt	Edgar Link	pending
0000731802-17-000033-xbrl.zip	Edgar Link	pending
ato-20170630.xml	Edgar Link	completed
ato-20170630.xsd	Edgar Link	pending
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ato-20170630_def.xml	Edgar Link	unprocessable
ato-20170630_lab.xml	Edgar Link	unprocessable
ato-20170630_pre.xml	Edgar Link	unprocessable
ato2017063010-q.htm	Edgar Link	pending
ato20170630ex-12.htm	Edgar Link	pending
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ato20170630ex-31.htm	Edgar Link	pending
ato20170630ex-32.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
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$ATO
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2017 Q3 Form 10-Q Financial Statement

#000073180217000033 Filed on August 02, 2017

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$ATO ATMOS ENERGY CORP Stock $ato

2017 Q3 Form 10-Q Financial Statement

#000073180217000033 Filed on August 02, 2017

Income Statement

Balance Sheet

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Files In Submission

$ATO
ATMOS ENERGY CORP Stock $ato