$OGS
ONE Gas, Inc. Stock $ogs

$ogs Overview Financials Valuation SEC Filings Company Website

2019 Q4 Form 10-K Financial Statement

#000158773220000017 Filed on February 20, 2020

Income Statement

Concept	2019 Q4	2019	2018 Q4
Revenue	$452.6M	$1.653B	$464.5M
YoY Change	-2.56%	1.16%	0.45%
Cost Of Revenue	$190.7M	$688.0M	$218.8M
YoY Change	-12.84%	-3.72%	4.19%
Gross Profit	$261.9M	$964.8M	$245.7M
YoY Change	6.59%	4.97%	-2.65%
Gross Profit Margin	57.87%	58.38%	52.9%
Selling, General & Admin	$133.8M	$489.1M	$123.7M
YoY Change	8.16%	3.93%	3.08%
% of Gross Profit	51.09%	50.69%	50.35%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$46.10M	$180.4M	$41.10M
YoY Change	12.17%	12.68%	6.48%
% of Gross Profit	17.6%	18.7%	16.73%
Operating Expenses	$179.9M	$669.5M	$164.8M
YoY Change	9.16%	6.15%	3.91%
Operating Profit	$81.97M	$295.3M	$80.86M
YoY Change	1.38%	2.37%	-13.82%
Interest Expense	-$15.70M	$62.68M	-$14.60M
YoY Change	7.53%	22.17%	23.73%
% of Operating Profit	-19.15%	21.23%	-18.06%
Other Income/Expense, Net	-$1.100M	-$2.976M	-$5.100M
YoY Change	-78.43%	-73.8%	45.71%
Pretax Income	$65.10M	$229.6M	$61.20M
YoY Change	6.37%	1.7%	-22.04%
Income Tax	$14.00M	$42.85M	$16.50M
% Of Pretax Income	21.51%	18.66%	26.96%
Net Earnings	$51.16M	$186.7M	$44.70M
YoY Change	14.45%	8.43%	-5.13%
Net Earnings / Revenue	11.3%	11.3%	9.62%
Basic Earnings Per Share	$0.97	$3.53	$0.85
Diluted Earnings Per Share	$0.96	$3.51	$0.84
COMMON SHARES
Basic Shares Outstanding	52.74M shares	52.90M shares	52.53M shares
Diluted Shares Outstanding		53.24M shares

Balance Sheet

Concept	2019 Q4	2019	2018 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$17.90M	$17.90M	$21.30M
YoY Change	-15.96%	-15.96%	47.92%
Cash & Equivalents	$17.85M	$17.90M	$21.32M
Short-Term Investments
Other Short-Term Assets	$30.91M	$68.30M	$20.50M
YoY Change	50.8%	-8.81%	15.1%
Inventory	$160.0M	$160.0M	$151.6M
Prepaid Expenses
Receivables	$260.0M	$260.0M	$295.4M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$506.2M	$506.2M	$543.3M
YoY Change	-6.83%	-6.83%	-7.76%
LONG-TERM ASSETS
Property, Plant & Equipment	$4.599B	$4.599B	$4.284B
YoY Change	7.37%	7.37%	6.89%
Goodwill	$158.0M		$158.0M
YoY Change	0.0%		0.0%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$87.88M	$444.7M	$46.21M
YoY Change	90.18%	-8.06%	-2.01%
Total Long-Term Assets	$5.202B	$5.202B	$4.925B
YoY Change	5.62%	5.62%	6.66%
TOTAL ASSETS
Total Short-Term Assets	$506.2M	$506.2M	$543.3M
Total Long-Term Assets	$5.202B	$5.202B	$4.925B
Total Assets	$5.708B	$5.708B	$5.469B
YoY Change	4.38%	4.38%	5.03%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$120.5M	$120.5M	$174.5M
YoY Change	-30.96%	-30.95%	21.46%
Accrued Expenses	$54.50M	$54.50M	$30.29M
YoY Change	79.9%	-43.76%	0.79%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$516.5M	$0.00
YoY Change		72.45%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$872.7M	$872.7M	$698.9M
YoY Change	24.87%	24.87%	3.8%
LONG-TERM LIABILITIES
Long-Term Debt	$1.286B	$1.286B	$1.285B
YoY Change	0.05%	0.05%	7.73%
Other Long-Term Liabilities	$118.3M	$737.5M	$89.60M
YoY Change	32.03%	-6.55%	2.08%
Total Long-Term Liabilities	$1.404B	$2.024B	$1.375B
YoY Change	2.13%	-2.46%	7.34%
TOTAL LIABILITIES
Total Short-Term Liabilities	$872.7M	$872.7M	$698.9M
Total Long-Term Liabilities	$1.404B	$2.024B	$1.375B
Total Liabilities	$2.277B	$3.579B	$2.074B
YoY Change	9.79%	4.46%	6.12%
SHAREHOLDERS EQUITY
Retained Earnings	$402.5M		$320.9M
YoY Change	25.44%		30.37%
Common Stock	$528.0K		$526.0K
YoY Change	0.38%		0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$0.00		$2.145M
YoY Change	-100.0%		-88.4%
Treasury Stock Shares	0.000 shares		33.10K shares
Shareholders Equity	$2.129B	$2.129B	$2.043B
YoY Change
Total Liabilities & Shareholders Equity	$5.708B	$5.708B	$5.469B
YoY Change	4.38%	4.38%	5.03%

Cashflow Statement

Concept	2019 Q4	2019	2018 Q4
OPERATING ACTIVITIES
Net Income	$51.16M	$186.7M	$44.70M
YoY Change	14.45%	8.43%	-5.13%
Depreciation, Depletion And Amortization	$46.10M	$180.4M	$41.10M
YoY Change	12.17%	12.68%	6.48%
Cash From Operating Activities	$21.80M	$310.3M	$30.90M
YoY Change	-29.45%	-33.64%	-163.58%
INVESTING ACTIVITIES
Capital Expenditures	-$111.5M	$417.3M	-$115.2M
YoY Change	-3.21%	5.8%	7.36%
Acquisitions
YoY Change
Other Investing Activities	-$2.600M	$0.00	$0.00
YoY Change
Cash From Investing Activities	-$114.1M	-$422.9M	-$115.2M
YoY Change	-0.95%	7.22%	7.36%
FINANCING ACTIVITIES
Cash Dividend Paid		$105.4M
YoY Change		9.14%
Common Stock Issuance & Retirement, Net		-$5.116M
YoY Change		6.52%
Debt Paid & Issued, Net		$0.00
YoY Change		-100.0%
Cash From Financing Activities	97.60M	$109.1M	93.10M
YoY Change	4.83%	-264.5%	-43.06%
NET CHANGE
Cash From Operating Activities	21.80M	$310.3M	30.90M
Cash From Investing Activities	-114.1M	-$422.9M	-115.2M
Cash From Financing Activities	97.60M	$109.1M	93.10M
Net Change In Cash	5.300M	-$3.470M	8.800M
YoY Change	-39.77%	-150.22%	15.79%
FREE CASH FLOW
Cash From Operating Activities	$21.80M	$310.3M	$30.90M
Capital Expenditures	-$111.5M	$417.3M	-$115.2M
Free Cash Flow	$133.3M	-$107.0M	$146.1M
YoY Change	-8.76%	-246.06%	148.89%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2019	dei	Entity Central Index Key EntityCentralIndexKey	0001587732
CY2017	ogs	Common Stock Dividends Declared Annualized Basis CommonStockDividendsDeclaredAnnualizedBasis	1.68
CY2019	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2019	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2019	dei	Amendment Flag AmendmentFlag	false
CY2019	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2019
CY2018	ogs	Common Stock Dividends Declared Annualized Basis CommonStockDividendsDeclaredAnnualizedBasis	1.84
CY2019	ogs	Common Stock Dividends Declared Annualized Basis CommonStockDividendsDeclaredAnnualizedBasis	2.00
CY2017	ogs	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Rate Of Compensation Increase Maximum DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncreaseMaximum	0.034
CY2018	ogs	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Rate Of Compensation Increase Maximum DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncreaseMaximum	0.0335
CY2019	ogs	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Rate Of Compensation Increase Maximum DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncreaseMaximum	0.0400
CY2017	ogs	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Rate Of Compensation Increase Minimum DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncreaseMinimum	0.0325
CY2018	ogs	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Rate Of Compensation Increase Minimum DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncreaseMinimum	0.0325
CY2019	ogs	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Rate Of Compensation Increase Minimum DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncreaseMinimum	0.0320
CY2018Q4	ogs	Defined Benefit Plan Assumptions Used To Determine Benefit Obligations Rateof Compensation Increase Maximum DefinedBenefitPlanAssumptionsUsedToDetermineBenefitObligationsRateofCompensationIncreaseMaximum	0.0400
CY2019Q4	ogs	Defined Benefit Plan Assumptions Used To Determine Benefit Obligations Rateof Compensation Increase Maximum DefinedBenefitPlanAssumptionsUsedToDetermineBenefitObligationsRateofCompensationIncreaseMaximum	0.04
CY2018Q4	ogs	Defined Benefit Plan Assumptions Used To Determine Benefit Obligations Rateof Compensation Increase Minimum DefinedBenefitPlanAssumptionsUsedToDetermineBenefitObligationsRateofCompensationIncreaseMinimum	0.0320
CY2019Q4	ogs	Defined Benefit Plan Assumptions Used To Determine Benefit Obligations Rateof Compensation Increase Minimum DefinedBenefitPlanAssumptionsUsedToDetermineBenefitObligationsRateofCompensationIncreaseMinimum	0.0310
CY2018	ogs	Fair Value Assets Transfersbetween Levels FairValueAssetsTransfersbetweenLevels	0	USD
CY2019Q4	ogs	Number Of Sites Soil Remediation Is Completed Or Near Completion NumberOfSitesSoilRemediationIsCompletedOrNearCompletion	12
CY2017	ogs	Segment Reporting Disclosureof Major Customer SegmentReportingDisclosureofMajorCustomer	0
CY2018	ogs	Segment Reporting Disclosureof Major Customer SegmentReportingDisclosureofMajorCustomer	0
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CY2019Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	52771749	shares
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CY2019Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	52771749	shares
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CY2018Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.46
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CY2019Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.50
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CY2019Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	250000000	shares
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CY2017Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2019	us-gaap	Defined Benefit Plan Narrative Description Of Basis Used To Determine Overall Expected Long Term Rate Of Return On Assets Assumption DefinedBenefitPlanNarrativeDescriptionOfBasisUsedToDetermineOverallExpectedLongTermRateOfReturnOnAssetsAssumption	We determine our discount rates annually. We estimate our discount rate based upon a comparison of the expected cash flows associated with our future payments under our defined benefit pension and other postemployment obligations to a hypothetical bond portfolio created using high-quality bonds that closely match expected cash flows. Bond portfolios are developed by selecting a bond for each of the next 60 years based on the maturity dates of the bonds. Bonds selected to be included in the portfolios are only those rated by Moody’s as AA- or better and exclude callable bonds, bonds with less than a minimum issue size, yield outliers and other filtering criteria to remove unsuitable bonds.
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CY2018Q4	us-gaap	Liability For Uncertain Tax Positions Current LiabilityForUncertainTaxPositionsCurrent	0	USD
CY2019	us-gaap	Line Of Credit Facility Expiration Date1 LineOfCreditFacilityExpirationDate1	2024-10-01
CY2018Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	32000000	USD
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CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	486000	USD
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CY2018Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	33103	shares
CY2019Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	0	shares
CY2019	dei	Document Type DocumentType	10-K
CY2019	dei	Document Annual Report DocumentAnnualReport	true
CY2017	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	608404000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	295258000	USD
CY2019	dei	Document Period End Date DocumentPeriodEndDate	2019-12-31
CY2019	dei	Document Transition Report DocumentTransitionReport	false
CY2019	dei	Entity File Number EntityFileNumber	001-36108
CY2019	dei	Entity Registrant Name EntityRegistrantName	ONE Gas, Inc.
CY2019	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	OK
CY2019	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	46-3561936
CY2019	dei	Entity Address Address Line1 EntityAddressAddressLine1	15 East Fifth Street
CY2019	dei	Entity Address City Or Town EntityAddressCityOrTown	Tulsa,
CY2019	dei	Entity Address State Or Province EntityAddressStateOrProvince	OK
CY2019	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	74103
CY2019	dei	City Area Code CityAreaCode	(918)
CY2019	dei	Local Phone Number LocalPhoneNumber	947-7000
CY2019	dei	Security12b Title Security12bTitle	Common Stock, par value $0.01 per share
CY2019	dei	Trading Symbol TradingSymbol	OGS
CY2019	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2019	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2019	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2019	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2019	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2019	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2019	dei	Entity Small Business EntitySmallBusiness	false
CY2019	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2019	dei	Entity Shell Company EntityShellCompany	false
CY2019Q2	dei	Entity Public Float EntityPublicFloat	4500000000	USD
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CY2017	us-gaap	Revenues Revenues	1539633000	USD
CY2019	us-gaap	Utilities Operating Expense Gas And Petroleum Purchased UtilitiesOperatingExpenseGasAndPetroleumPurchased	687974000	USD
CY2018	us-gaap	Utilities Operating Expense Gas And Petroleum Purchased UtilitiesOperatingExpenseGasAndPetroleumPurchased	714636000	USD
CY2017	us-gaap	Utilities Operating Expense Gas And Petroleum Purchased UtilitiesOperatingExpenseGasAndPetroleumPurchased	614501000	USD
CY2019	us-gaap	Utilities Operating Expense Maintenance And Operations UtilitiesOperatingExpenseMaintenanceAndOperations	429126000	USD
CY2018	us-gaap	Utilities Operating Expense Maintenance And Operations UtilitiesOperatingExpenseMaintenanceAndOperations	411702000	USD
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CY2019	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	59977000	USD
CY2018	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	58878000	USD
CY2017	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	57225000	USD
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CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-2976000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-11359000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	229601000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	225765000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-14525000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	256138000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	42852000	USD
CY2018	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	630666000	USD
CY2019	us-gaap	Interest Expense InterestExpense	62681000	USD
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CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.53
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CY2019Q4	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	4565226000	USD
CY2018Q4	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	4283712000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	17853000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	21323000	USD
CY2019Q4	us-gaap	Materials Supplies And Other MaterialsSuppliesAndOther	55732000	USD
CY2018Q4	us-gaap	Materials Supplies And Other MaterialsSuppliesAndOther	44333000	USD
CY2019Q4	us-gaap	Public Utilities Inventory PublicUtilitiesInventory	104259000	USD
CY2018Q4	us-gaap	Public Utilities Inventory PublicUtilitiesInventory	107295000	USD
CY2019Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	47440000	USD
CY2018Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	54420000	USD
CY2019Q4	us-gaap	Other Assets Current OtherAssetsCurrent	20906000	USD
CY2018Q4	us-gaap	Other Assets Current OtherAssetsCurrent	20495000	USD
CY2019Q4	us-gaap	Assets Current AssetsCurrent	506202000	USD
CY2018Q4	us-gaap	Assets Current AssetsCurrent	543287000	USD
CY2019Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	391036000	USD
CY2018Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	437479000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	157953000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	157953000	USD
CY2019Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	87883000	USD
CY2018Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	46211000	USD
CY2019Q4	ogs	Totalgoodwillandotherassets Totalgoodwillandotherassets	636872000	USD
CY2018Q4	ogs	Totalgoodwillandotherassets Totalgoodwillandotherassets	641643000	USD
CY2019Q4	us-gaap	Assets Assets	5708300000	USD
CY2018Q4	us-gaap	Assets Assets	5468642000	USD
CY2019Q4	us-gaap	Common Stock Value CommonStockValue	528000	USD
CY2018Q4	us-gaap	Common Stock Value CommonStockValue	526000	USD
CY2019Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	1733092000	USD
CY2018Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	1727492000	USD
CY2019Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	402509000	USD
CY2018Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	320869000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-6739000	USD
CY2018Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	174510000	USD
CY2019Q4	us-gaap	Capitalization Longterm Debt And Equity CapitalizationLongtermDebtAndEquity	3415454000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-4086000	USD
CY2019Q4	us-gaap	Treasury Stock Value TreasuryStockValue	0	USD
CY2018Q4	us-gaap	Treasury Stock Value TreasuryStockValue	2145000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	2129390000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	2042656000	USD
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	1286064000	USD
CY2018Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	1285483000	USD
CY2018Q4	us-gaap	Capitalization Longterm Debt And Equity CapitalizationLongtermDebtAndEquity	3328139000	USD
CY2019Q4	us-gaap	Commercial Paper CommercialPaper	516500000	USD
CY2018Q4	us-gaap	Commercial Paper CommercialPaper	299500000	USD
CY2019Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	120490000	USD
CY2019Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	47956000	USD
CY2018Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	47640000	USD
CY2019Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	45201000	USD
CY2018Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	48394000	USD
CY2019Q4	us-gaap	Customer Deposits Current CustomerDepositsCurrent	57987000	USD
CY2018Q4	us-gaap	Customer Deposits Current CustomerDepositsCurrent	61183000	USD
CY2019Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	84603000	USD
CY2018Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	67664000	USD
CY2019Q4	us-gaap	Liabilities Current LiabilitiesCurrent	872737000	USD
CY2018Q4	us-gaap	Liabilities Current LiabilitiesCurrent	698891000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	682632000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	652426000	USD
CY2019Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	503518000	USD
CY2018Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	520866000	USD
CY2019Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	115657000	USD
CY2018Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	178720000	USD
CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	118302000	USD
CY2018Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	89600000	USD
CY2019Q4	ogs	Total Deferred Credits And Other Liabilities TotalDeferredCreditsAndOtherLiabilities	1420109000	USD
CY2018Q4	ogs	Total Deferred Credits And Other Liabilities TotalDeferredCreditsAndOtherLiabilities	1441612000	USD
CY2019Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2018Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	5708300000	USD
CY2018Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	5468642000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	186749000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	172234000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	162995000	USD
CY2019	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	180395000	USD
CY2018	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	160086000	USD
CY2017	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	151889000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	13307000	USD
CY2017	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	7323000	USD
CY2019	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-26415000	USD
CY2018	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	5159000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	53242000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	92393000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	9314000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	8195000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	8876000	USD
CY2019	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	8994000	USD
CY2018	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	8506000	USD
CY2017	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	15147000	USD
CY2019	us-gaap	Increase Decrease In Materials And Supplies IncreaseDecreaseInMaterialsAndSupplies	11399000	USD
CY2018	us-gaap	Increase Decrease In Materials And Supplies IncreaseDecreaseInMaterialsAndSupplies	4661000	USD
CY2017	us-gaap	Increase Decrease In Materials And Supplies IncreaseDecreaseInMaterialsAndSupplies	5588000	USD
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-3036000	USD
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-22859000	USD
CY2017	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	4722000	USD
CY2019	us-gaap	Payments For Removal Costs PaymentsForRemovalCosts	47784000	USD
CY2018	us-gaap	Payments For Removal Costs PaymentsForRemovalCosts	52855000	USD
CY2017	us-gaap	Payments For Removal Costs PaymentsForRemovalCosts	52376000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-59293000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	36885000	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	1945000	USD
CY2019	us-gaap	Increase Decrease In Property And Other Taxes Payable IncreaseDecreaseInPropertyAndOtherTaxesPayable	316000	USD
CY2018	us-gaap	Increase Decrease In Property And Other Taxes Payable IncreaseDecreaseInPropertyAndOtherTaxesPayable	6316000	USD
CY2017	us-gaap	Increase Decrease In Property And Other Taxes Payable IncreaseDecreaseInPropertyAndOtherTaxesPayable	-1247000	USD
CY2019	us-gaap	Increase Decrease In Customer Deposits IncreaseDecreaseInCustomerDeposits	-3196000	USD
CY2018	us-gaap	Increase Decrease In Customer Deposits IncreaseDecreaseInCustomerDeposits	372000	USD
CY2017	us-gaap	Increase Decrease In Customer Deposits IncreaseDecreaseInCustomerDeposits	-398000	USD
CY2019	us-gaap	Increase Decrease In Regulatory Assets And Liabilities IncreaseDecreaseInRegulatoryAssetsAndLiabilities	-28203000	USD
CY2018	us-gaap	Increase Decrease In Regulatory Assets And Liabilities IncreaseDecreaseInRegulatoryAssetsAndLiabilities	-109437000	USD
CY2017	us-gaap	Increase Decrease In Regulatory Assets And Liabilities IncreaseDecreaseInRegulatoryAssetsAndLiabilities	-29250000	USD
CY2019	us-gaap	Increase Decrease In Pension And Postretirement Obligations IncreaseDecreaseInPensionAndPostretirementObligations	-35401000	USD
CY2018	us-gaap	Increase Decrease In Pension And Postretirement Obligations IncreaseDecreaseInPensionAndPostretirementObligations	-50100000	USD
CY2017	us-gaap	Increase Decrease In Pension And Postretirement Obligations IncreaseDecreaseInPensionAndPostretirementObligations	-118095000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-10689000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-2337000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	3298000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	310345000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	467694000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	253800000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	417322000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	394450000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	356361000	USD
CY2019	us-gaap	Payments To Acquire Assets Investing Activities PaymentsToAcquireAssetsInvestingActivities	7009000	USD
CY2018	us-gaap	Payments To Acquire Assets Investing Activities PaymentsToAcquireAssetsInvestingActivities	0	USD
CY2017	us-gaap	Payments To Acquire Assets Investing Activities PaymentsToAcquireAssetsInvestingActivities	0	USD
CY2019	us-gaap	Proceeds From Sale Of Other Assets Investing Activities ProceedsFromSaleOfOtherAssetsInvestingActivities	1399000	USD
CY2018	us-gaap	Proceeds From Sale Of Other Assets Investing Activities ProceedsFromSaleOfOtherAssetsInvestingActivities	0	USD
CY2017	us-gaap	Proceeds From Sale Of Other Assets Investing Activities ProceedsFromSaleOfOtherAssetsInvestingActivities	0	USD
CY2019	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	0	USD
CY2018	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	0	USD
CY2017	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-618000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-422932000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-394450000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-355743000	USD
CY2019	us-gaap	Proceeds From Repayments Of Commercial Paper ProceedsFromRepaymentsOfCommercialPaper	217000000	USD
CY2018	us-gaap	Proceeds From Repayments Of Commercial Paper ProceedsFromRepaymentsOfCommercialPaper	-57715000	USD
CY2017	us-gaap	Proceeds From Repayments Of Commercial Paper ProceedsFromRepaymentsOfCommercialPaper	212215000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	17512000	USD
CY2019	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2018	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	395648000	USD
CY2017	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2019	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	0	USD
CY2018	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	4324000	USD
CY2017	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	0	USD
CY2019	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	5116000	USD
CY2018	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	4803000	USD
CY2017	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	4457000	USD
CY2019	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	0	USD
CY2018	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	300000000	USD
CY2017	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	0	USD
CY2019	us-gaap	Payments Of Dividends PaymentsOfDividends	105424000	USD
CY2018	us-gaap	Payments Of Dividends PaymentsOfDividends	96594000	USD
CY2017	us-gaap	Payments Of Dividends PaymentsOfDividends	87951000	USD
CY2019	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	-7575000	USD
CY2018	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	-8152000	USD
CY2017	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	-9516000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	109117000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-66334000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	101693000	USD
CY2019	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-3470000	USD
CY2018	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	6910000	USD
CY2017	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-250000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	21323000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	14413000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	14663000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	17853000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	21323000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	14413000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	61160000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	49371000	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	44436000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	30152000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	800000	USD
CY2017	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-1389000	USD
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	1888280000	USD
CY2017	us-gaap	Adjustment To Additional Paid In Capital Income Tax Effect From Share Based Compensation Net AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet	10982000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	162995000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-778000	USD
CY2017	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	17512000	USD
CY2017	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	4193000	USD
CY2017	us-gaap	Dividends Common Stock DividendsCommonStock	87951000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	1960209000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	172234000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	1407000	USD
CY2018	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	5400000	USD
CY2018	us-gaap	Dividends Common Stock DividendsCommonStock	96594000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	2042656000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	186749000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-1435000	USD
CY2019	us-gaap	Income Tax Effects Allocated Directly To Equity Cumulative Effect Of Change In Accounting Principle IncomeTaxEffectsAllocatedDirectlyToEquityCumulativeEffectOfChangeInAccountingPrinciple	0	USD
CY2019	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	6844000	USD
CY2019	us-gaap	Dividends Common Stock DividendsCommonStock	105424000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	2129390000	USD
CY2019Q4	ogs	Number Of Natural Gas Distribution Services Customers NumberOfNaturalGasDistributionServicesCustomers	2200000
CY2019	us-gaap	Use Of Estimates UseOfEstimates	<div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-weight:bold;">Use of Estimates</span><span style="font-family:inherit;font-size:10pt;"> - The preparation of our consolidated financial statements and related disclosures in accordance with GAAP requires us to make estimates and assumptions with respect to values or conditions that cannot be known with certainty that affect the reported amount of assets and liabilities, and the disclosure of contingent assets and liabilities at the date of the consolidated financial statements. These estimates and assumptions also affect the reported amounts of revenue and expenses during the reporting period. Items that may be estimated include, but are not limited to, the economic useful life of assets, fair value of assets and liabilities, provisions for doubtful accounts receivable, unbilled revenues for natural gas delivered but for which meters have not been read, natural gas purchased but for which no invoice has been received, provision for income taxes, including any deferred income tax valuation allowances, the results of litigation and various other recorded or disclosed amounts.</span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">We evaluate these estimates on an ongoing basis using historical experience and other methods we consider reasonable based on the particular circumstances. Nevertheless, actual results may differ significantly from the estimates. Any effects on our financial position or results of operations from revisions to these estimates are recorded in the period when the facts that give rise to the revision become known.</span></div>
CY2019Q4	ogs	Number Of Natural Gas Distribution Services Customers NumberOfNaturalGasDistributionServicesCustomers	2200000
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	6600000	USD
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	4700000	USD
CY2019	us-gaap	Derivatives Reporting Of Derivative Activity DerivativesReportingOfDerivativeActivity	<div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-weight:bold;">Derivatives and Risk Management Activities</span><span style="font-family:inherit;font-size:10pt;"> - We record all derivative instruments at fair value, with the exception of normal purchases and normal sales that are expected to result in physical delivery. The accounting for changes in the fair value of a derivative instrument depends on whether it has been designated and qualifies as part of a hedging relationship and, if so, the reason for holding it, or if regulatory rulings require a different accounting treatment.</span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">If certain conditions are met, we may elect to designate a derivative instrument as a hedge of exposure to changes in fair values or cash flows. We have not elected to designate any of our derivative instruments as hedges. </span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">The table below summarizes the various ways in which we account for our derivative instruments and the impact on our consolidated financial statements:</span></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="5"/></tr><tr><td style="width:23%;"/><td style="width:3%;"/><td style="width:35%;"/><td style="width:3%;"/><td style="width:36%;"/></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><span style="font-family:inherit;font-size:9pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:inherit;font-size:9pt;"> </span></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><span style="font-family:inherit;font-size:9pt;font-weight:bold;">Recognition and Measurement</span></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><span style="font-family:inherit;font-size:9pt;font-weight:bold;">Accounting Treatment</span></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:inherit;font-size:9pt;"> </span></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><span style="font-family:inherit;font-size:9pt;font-weight:bold;">Balance Sheet</span></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:inherit;font-size:9pt;"> </span></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><span style="font-family:inherit;font-size:9pt;font-weight:bold;">Income Statement</span></div></td></tr><tr><td style="vertical-align:top;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="vertical-align:top;text-align:left;font-size:9pt;"><span style="font-family:inherit;font-size:9pt;vertical-align:top;">Normal purchases and</span></div><div style="vertical-align:top;text-align:left;font-size:9pt;"><span style="font-family:inherit;font-size:9pt;vertical-align:top;">normal sales</span></div></td><td style="vertical-align:top;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:inherit;font-size:9pt;">-</span></div></td><td style="vertical-align:top;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><span style="font-family:inherit;font-size:9pt;">Fair value not recorded</span></div></td><td style="vertical-align:top;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:inherit;font-size:9pt;">-</span></div></td><td style="vertical-align:top;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><span style="font-family:inherit;font-size:9pt;">Change in fair value not recognized in earnings</span></div></td></tr><tr><td style="vertical-align:top;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><span style="font-family:inherit;font-size:9pt;">Mark-to-market</span></div></td><td style="vertical-align:top;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:inherit;font-size:9pt;">-</span></div></td><td style="vertical-align:top;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><span style="font-family:inherit;font-size:9pt;">Recorded at fair value</span></div></td><td style="vertical-align:top;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:inherit;font-size:9pt;">-</span></div></td><td style="vertical-align:top;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><span style="font-family:inherit;font-size:9pt;">Change in fair value recognized in, and</span></div><div style="text-align:left;font-size:9pt;"><span style="font-family:inherit;font-size:9pt;">recoverable through, the purchased-gas cost adjustment mechanisms</span></div></td></tr></table></div></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">See Note 9 for additional information regarding our hedging activities using derivatives.</span></div>
CY2019	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2019Q4	us-gaap	Liability For Uncertain Tax Positions Current LiabilityForUncertainTaxPositionsCurrent	0	USD
CY2019	ogs	Segment Reporting Disclosureof Major Customer SegmentReportingDisclosureofMajorCustomer	0
CY2017	ogs	Impactofreclassificationuponadoptionof Asu201707 ImpactofreclassificationuponadoptionofASU201707	17300000	USD
CY2018Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	32000000	USD
CY2019Q4	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	109700000	USD
CY2018Q4	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	127600000	USD
CY2019	us-gaap	Regulated Operating Revenue Gas RegulatedOperatingRevenueGas	1647479000	USD
CY2018	us-gaap	Regulated Operating Revenue Gas RegulatedOperatingRevenueGas	1626618000	USD
CY2019	us-gaap	Regulated Operating Revenue Other RegulatedOperatingRevenueOther	9950000	USD
CY2018	us-gaap	Regulated Operating Revenue Other RegulatedOperatingRevenueOther	9919000	USD
CY2019	us-gaap	Regulated Operating Revenue RegulatedOperatingRevenue	1652730000	USD
CY2018	us-gaap	Regulated Operating Revenue RegulatedOperatingRevenue	1633731000	USD
CY2019Q4	ogs	Approved Debt Capital Ratio ApprovedDebtCapitalRatio	0.70
CY2019Q4	us-gaap	Ratio Of Indebtedness To Net Capital1 RatioOfIndebtednessToNetCapital1	0.46
CY2019Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	1200000	USD
CY2019Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	0	USD
CY2019Q4	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	698800000	USD
CY2019Q4	ogs	Commercialpapermaximumborrowingcapacity Commercialpapermaximumborrowingcapacity	700000000	USD
CY2019Q4	us-gaap	Commercial Paper CommercialPaper	516500000	USD
CY2019Q4	ogs	Debt Instrument Covenant Compliance Default Provision Indebtnedness Threshold DebtInstrumentCovenantComplianceDefaultProvisionIndebtnednessThreshold	100000000	USD
CY2019Q4	ogs	Debt Instrument Covenant Compliance Default Provision Debt Holders DebtInstrumentCovenantComplianceDefaultProvisionDebtHolders	0.25
CY2019	us-gaap	Debt Instrument Redemption Price Percentage DebtInstrumentRedemptionPricePercentage	1
CY2019	us-gaap	Lessee Operating Lease Option To Extend LesseeOperatingLeaseOptionToExtend	10 years
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	34200000	USD
CY2019	us-gaap	Operating Lease Expense OperatingLeaseExpense	8500000	USD
CY2018	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	8200000	USD
CY2017	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	8700000	USD
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0362
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	8400000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	9500000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	7600000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	7200000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	6900000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	5800000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	3100000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	8500000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	39100000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	4600000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	34500000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	6500000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	28000000.0	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	34500000	USD
CY2018Q4	ogs	Operating Leases Future Minimum Payments Dueunder Asc840 OperatingLeasesFutureMinimumPaymentsDueunderASC840	6300000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	5100000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	4500000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	4300000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	4200000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	3800000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	28200000	USD
CY2019Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	50000000	shares
CY2019Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2019Q4	ogs	Commonstockauthorizedandavailableforissuance Commonstockauthorizedandavailableforissuance	197200000	shares
CY2019Q4	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	20000000	USD
CY2019	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	2.00
CY2019Q4	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.50
CY2018	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.84
CY2018Q4	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.46
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-5493000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	596000	USD
CY2018	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-811000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	1407000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-4086000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-2074000	USD
CY2019	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-639000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-1435000	USD
CY2019	ogs	Stranded Deferred Tax Remeasurement Benefit StrandedDeferredTaxRemeasurementBenefit	-1218000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-6739000	USD
CY2019	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-35283000	USD
CY2018	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-43800000	USD
CY2017	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-42591000	USD
CY2019	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	-673000	USD
CY2018	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	-4567000	USD
CY2017	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	-4597000	USD
CY2019	ogs	Othercomprehensiveincomelossreclassificationadjustmentbeforetaxandregulatoryadjustments Othercomprehensiveincomelossreclassificationadjustmentbeforetaxandregulatoryadjustments	-34610000	USD
CY2018	ogs	Othercomprehensiveincomelossreclassificationadjustmentbeforetaxandregulatoryadjustments Othercomprehensiveincomelossreclassificationadjustmentbeforetaxandregulatoryadjustments	-39233000	USD
CY2017	ogs	Othercomprehensiveincomelossreclassificationadjustmentbeforetaxandregulatoryadjustments Othercomprehensiveincomelossreclassificationadjustmentbeforetaxandregulatoryadjustments	-37994000	USD
CY2019	ogs	Othercomprehensiveincomelossreclassification Regulatoryadjustments OthercomprehensiveincomelossreclassificationRegulatoryadjustments	33758000	USD
CY2018	ogs	Othercomprehensiveincomelossreclassification Regulatoryadjustments OthercomprehensiveincomelossreclassificationRegulatoryadjustments	38151000	USD
CY2017	ogs	Othercomprehensiveincomelossreclassification Regulatoryadjustments OthercomprehensiveincomelossreclassificationRegulatoryadjustments	37157000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax	-852000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax	-1082000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax	-837000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax	-213000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax	-271000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax	-322000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax	-639000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax	-811000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax	-515000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	186749000	USD
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	52895000	shares
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.53
CY2019	us-gaap	Dilutive Securities DilutiveSecurities	0	USD
CY2019	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	345000	shares
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	186749000	USD
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	53240000	shares
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.51
CY2018	us-gaap	Net Income Loss NetIncomeLoss	172234000	USD
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	52693000	shares
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.27
CY2018	us-gaap	Dilutive Securities DilutiveSecurities	0	USD
CY2018	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	336000	shares
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	172234000	USD
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	53029000	shares
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.25
CY2017	us-gaap	Net Income Loss NetIncomeLoss	162995000	USD
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	52527000	shares
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.10
CY2017	us-gaap	Dilutive Securities DilutiveSecurities	0	USD
CY2017	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	452000	shares
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	162995000	USD
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	52979000	shares
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.08
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	1800000	shares
CY2018Q4	us-gaap	Derivative Nonmonetary Notional Amount DerivativeNonmonetaryNotionalAmount	14300	MMcf
CY2018Q4	ogs	Premiumsrecordedinothercurrentassetsonnaturalgascontractsheld Premiumsrecordedinothercurrentassetsonnaturalgascontractsheld	4100000	USD
CY2019	ogs	Fair Value Assets Transfersbetween Levels FairValueAssetsTransfersbetweenLevels	0	USD
CY2019Q4	ogs	Corporatebondsinotherassets Corporatebondsinotherassets	2600000	USD
CY2019Q4	us-gaap	Derivative Nonmonetary Notional Amount DerivativeNonmonetaryNotionalAmount	14300	MMcf
CY2019Q4	ogs	Premiumsrecordedinothercurrentassetsonnaturalgascontractsheld Premiumsrecordedinothercurrentassetsonnaturalgascontractsheld	4400000	USD
CY2019Q4	ogs	Treasurynotesinotherassets Treasurynotesinotherassets	3000000.0	USD
CY2019Q4	us-gaap	Long Term Debt LongTermDebt	1300000000	USD
CY2019Q4	ogs	Netregulatoryassetsandliabilitiescurrent Netregulatoryassetsandliabilitiescurrent	2239000	USD
CY2019Q4	ogs	Netregulatoryassetsandliabilitiesnoncurrent Netregulatoryassetsandliabilitiesnoncurrent	-112482000	USD
CY2019Q4	us-gaap	Net Regulatory Assets NetRegulatoryAssets	-110243000	USD
CY2018Q4	ogs	Netregulatoryassetsandliabilitiescurrent Netregulatoryassetsandliabilitiescurrent	6026000	USD
CY2018Q4	ogs	Netregulatoryassetsandliabilitiesnoncurrent Netregulatoryassetsandliabilitiesnoncurrent	-83387000	USD
CY2018Q4	us-gaap	Net Regulatory Assets NetRegulatoryAssets	-77361000	USD
CY2019	us-gaap	Amortization Of Rate Deferral AmortizationOfRateDeferral	2500000	USD
CY2018	us-gaap	Amortization Of Rate Deferral AmortizationOfRateDeferral	1700000	USD
CY2017	us-gaap	Amortization Of Rate Deferral AmortizationOfRateDeferral	1000000.0	USD
CY2018	ogs	Reductiontorevenuesduetothechangeintaxratescollectedinourrates Reductiontorevenuesduetothechangeintaxratescollectedinourrates	36600000	USD
CY2019Q1	ogs	Oklahoma Natural Gastaxreformregulatoryliability OklahomaNaturalGastaxreformregulatoryliability	15800000	USD
CY2019Q1	ogs	Oklahoma Natural Gastaxreformregulatoryliabilityasadjusted OklahomaNaturalGastaxreformregulatoryliabilityasadjusted	15600000	USD
CY2019Q1	ogs	Changein Kg Staxreformregulatoryliability ChangeinKGStaxreformregulatoryliability	2400000	USD
CY2018Q1	ogs	Changein Kg Staxreformregulatoryliability ChangeinKGStaxreformregulatoryliability	14200000	USD
CY2019Q2	ogs	Kansas Gas Servicetaxreformregulatoryliability KansasGasServicetaxreformregulatoryliability	16600000	USD
CY2018Q3	ogs	Texas Gas Serviceonetimerefundsrelatedtotaxreform TexasGasServiceonetimerefundsrelatedtotaxreform	6600000	USD
CY2019	ogs	Reductioninincometaxexpensefortheamortizationoftheregulatoryliabilityassociatedwithexcess Adi Tthatwasreturnedtocustomers ReductioninincometaxexpensefortheamortizationoftheregulatoryliabilityassociatedwithexcessADITthatwasreturnedtocustomers	12800000	USD
CY2019Q4	us-gaap	Common Stock Capital Shares Reserved For Future Issuance CommonStockCapitalSharesReservedForFutureIssuance	4300000	shares
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Additional Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized	1800000	shares
CY2019	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	6800000	USD
CY2019	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	2200000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	6100000	USD
CY2018	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	2100000	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	4900000	USD
CY2017	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	3000000.0	USD
CY2019	us-gaap	Defined Benefit Plan Benefit Obligation Payment For Settlement DefinedBenefitPlanBenefitObligationPaymentForSettlement	47200000	USD
CY2019	us-gaap	Defined Benefit Plan Settlements Benefit Obligation DefinedBenefitPlanSettlementsBenefitObligation	-49200000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Assets Expected To Be Returned To Employer Amount DefinedBenefitPlanAssetsExpectedToBeReturnedToEmployerAmount	0	USD
CY2019	us-gaap	Defined Benefit Plan Amounts Recognized In Other Comprehensive Income Loss Net Gain Loss Before Tax DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeLossNetGainLossBeforeTax	0	USD
CY2019Q4	us-gaap	Defined Benefit Plan Health Care Cost Trend Rate Assumed Next Fiscal Year DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYear	0.0650
CY2018Q4	us-gaap	Defined Benefit Plan Health Care Cost Trend Rate Assumed Next Fiscal Year DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYear	0.0700
CY2019Q4	us-gaap	Defined Benefit Plan Ultimate Health Care Cost Trend Rate1 DefinedBenefitPlanUltimateHealthCareCostTrendRate1	0.0500
CY2018Q4	us-gaap	Defined Benefit Plan Ultimate Health Care Cost Trend Rate1 DefinedBenefitPlanUltimateHealthCareCostTrendRate1	0.0500
CY2019	us-gaap	Defined Benefit Plan Year Health Care Cost Trend Rate Reaches Ultimate Trend Rate DefinedBenefitPlanYearHealthCareCostTrendRateReachesUltimateTrendRate	2025
CY2018	us-gaap	Defined Benefit Plan Year Health Care Cost Trend Rate Reaches Ultimate Trend Rate DefinedBenefitPlanYearHealthCareCostTrendRateReachesUltimateTrendRate	2024
CY2019Q4	us-gaap	Defined Benefit Plan Plan Assets Target Allocation Percentage DefinedBenefitPlanPlanAssetsTargetAllocationPercentage	1
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	24537000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	5008000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	289000	USD
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	750000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	29545000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	289000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	750000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	8375000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	42413000	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	83138000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	4932000	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	10829000	USD
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	9255000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	13307000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	53242000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	92393000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	42852000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	53531000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	93143000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	229601000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	225765000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	256138000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	47411000	USD
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	48215000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	168839000	USD
CY2017	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	89648000	USD
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	9758000	USD
CY2018	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	8783000	USD
CY2017	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	6503000	USD
CY2019	ogs	Effective Income Tax Rate Reconciliationnonregulateddeferredtaxratedecrease EffectiveIncomeTaxRateReconciliationnonregulateddeferredtaxratedecrease	0	USD
CY2018	ogs	Effective Income Tax Rate Reconciliationnonregulateddeferredtaxratedecrease EffectiveIncomeTaxRateReconciliationnonregulateddeferredtaxratedecrease	74000	USD
CY2017	ogs	Effective Income Tax Rate Reconciliationnonregulateddeferredtaxratedecrease EffectiveIncomeTaxRateReconciliationnonregulateddeferredtaxratedecrease	2162000	USD
CY2019	ogs	Amortizationof Edi Tregulatoryliability AmortizationofEDITregulatoryliability	-12828000	USD
CY2018	ogs	Amortizationof Edi Tregulatoryliability AmortizationofEDITregulatoryliability	0	USD
CY2017	ogs	Amortizationof Edi Tregulatoryliability AmortizationofEDITregulatoryliability	0	USD
CY2019	ogs	Effective Income Tax Rate Reconciliationtaxbenefitofemployeesharebasedcompensation EffectiveIncomeTaxRateReconciliationtaxbenefitofemployeesharebasedcompensation	-2116000	USD
CY2018	ogs	Effective Income Tax Rate Reconciliationtaxbenefitofemployeesharebasedcompensation EffectiveIncomeTaxRateReconciliationtaxbenefitofemployeesharebasedcompensation	-2770000	USD
CY2017	ogs	Effective Income Tax Rate Reconciliationtaxbenefitofemployeesharebasedcompensation EffectiveIncomeTaxRateReconciliationtaxbenefitofemployeesharebasedcompensation	-5162000	USD
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-177000	USD
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	33000	USD
CY2017	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-8000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	42852000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	53531000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	93143000	USD
CY2018Q4	ogs	Decreaseinnetdeferredtaxliabilityduetoenactedtaxratechanges Decreaseinnetdeferredtaxliabilityduetoenactedtaxratechanges	518700000	USD
CY2018	us-gaap	Tax Cuts And Jobs Act Of2017 Decrease In Deferred Tax Liability Due To Transition Tax TaxCutsAndJobsActOf2017DecreaseInDeferredTaxLiabilityDueToTransitionTax	520900000	USD
CY2018	us-gaap	Tax Cuts And Jobs Act Of2017 Measurement Period Adjustment Income Tax Expense Benefit TaxCutsAndJobsActOf2017MeasurementPeriodAdjustmentIncomeTaxExpenseBenefit	2200000	USD
CY2019Q4	ogs	Deferredtaxassetemployeebenefitsandotheraccruedliabilities Deferredtaxassetemployeebenefitsandotheraccruedliabilities	32036000	USD
CY2018Q4	ogs	Deferredtaxassetemployeebenefitsandotheraccruedliabilities Deferredtaxassetemployeebenefitsandotheraccruedliabilities	48243000	USD
CY2019Q4	ogs	Deferredtaxassetregulatoryadjustments Deferredtaxassetregulatoryadjustments	124680000	USD
CY2018Q4	ogs	Deferredtaxassetregulatoryadjustments Deferredtaxassetregulatoryadjustments	129201000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	752000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	2778000	USD
CY2019Q4	ogs	Deferred Tax Assets Leasing Arrangements DeferredTaxAssetsLeasingArrangements	8599000	USD
CY2018Q4	ogs	Deferred Tax Assets Leasing Arrangements DeferredTaxAssetsLeasingArrangements	0	USD
CY2019Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	2772000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	34000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	180256000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	742860000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	717903000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets And Liabilities DeferredTaxLiabilitiesRegulatoryAssetsAndLiabilities	3556000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets And Liabilities DeferredTaxLiabilitiesRegulatoryAssetsAndLiabilities	8981000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	96456000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	105798000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	8599000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	0	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	851471000	USD
CY2018Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	832682000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	682632000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	652426000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	13600000	USD
CY2019	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	-5895000	USD
CY2018	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	-8824000	USD
CY2017	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	-17252000	USD
CY2019	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	2919000	USD
CY2018	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	2535000	USD
CY2017	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	2727000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-2976000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-11359000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-14525000	USD
CY2019Q4	ogs	Number Of Former Manufactured Gas Sites Where We Own Or Retain Legal Responsibility For Environmental Conditions NumberOfFormerManufacturedGasSitesWhereWeOwnOrRetainLegalResponsibilityForEnvironmentalConditions	12
CY2019Q4	ogs	Number Of Former Manufactured Gas Sites Where We Own Or Retain Legal Responsibility For Environmental Conditions NumberOfFormerManufacturedGasSitesWhereWeOwnOrRetainLegalResponsibilityForEnvironmentalConditions	12
CY2019Q4	ogs	Numberofsiteswithongoinggroundwatermonitoring Numberofsiteswithongoinggroundwatermonitoring	8
CY2019Q4	ogs	Number Of Former Manufactured Gas Sites Where We Own Or Retain Legal Responsibility For Environmental Conditions NumberOfFormerManufacturedGasSitesWhereWeOwnOrRetainLegalResponsibilityForEnvironmentalConditions	12
CY2019Q4	ogs	Numberof Mg Psitesforwhicharemediationreservewasrecorded NumberofMGPsitesforwhicharemediationreservewasrecorded	1
CY2016	ogs	Environmental Reserve Estimate Range Low EnvironmentalReserveEstimateRangeLow	4000000.0	USD
CY2016	ogs	Environmental Reserve Estimate Range High EnvironmentalReserveEstimateRangeHigh	7000000.0	USD
	ogs	Environmental Reserve Estimate Range Low EnvironmentalReserveEstimateRangeLow	5600000	USD
	ogs	Environmental Reserve Estimate Range High EnvironmentalReserveEstimateRangeHigh	7000000.0	USD
CY2018Q2	us-gaap	Accrual For Environmental Loss Contingencies Increase Decrease For Revision In Estimates AccrualForEnvironmentalLossContingenciesIncreaseDecreaseForRevisionInEstimates	1600000	USD
CY2018Q2	ogs	Environmental Reserve Estimate Actual EnvironmentalReserveEstimateActual	5600000	USD
CY2019Q4	ogs	Number Of Former Manufactured Gas Sites Where We Own Or Retain Legal Responsibility For Environmental Conditions NumberOfFormerManufacturedGasSitesWhereWeOwnOrRetainLegalResponsibilityForEnvironmentalConditions	12
CY2017Q4	ogs	Deferred Mgp Costs Maximum DeferredMGPCostsMaximum	15000000.0	USD
CY2017Q4	ogs	Deferred Mgp Costs Maximum DeferredMGPCostsMaximum	15000000.0	USD
CY2017Q4	ogs	Deferred Mgp Costs Maximum DeferredMGPCostsMaximum	15000000.0	USD
CY2017Q4	ogs	Percentageyieldofhighconsequencepipelineareas Percentageyieldofhighconsequencepipelineareas	0.30
CY2019Q1	us-gaap	Regulated Operating Revenue Gas RegulatedOperatingRevenueGas	661000000	USD
CY2019Q2	us-gaap	Regulated Operating Revenue Gas RegulatedOperatingRevenueGas	290560000	USD
CY2019Q3	us-gaap	Regulated Operating Revenue Gas RegulatedOperatingRevenueGas	248563000	USD
CY2019Q4	us-gaap	Regulated Operating Revenue Gas RegulatedOperatingRevenueGas	452607000	USD
CY2019Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	127619000	USD
CY2019Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	46891000	USD
CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	38777000	USD
CY2019Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	81971000	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	93660000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	24470000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	17457000	USD
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	51162000	USD
CY2019Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.77
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.46
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.33
CY2019Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.97
CY2019Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.76
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.46
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.33
CY2019Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.96
CY2018Q1	us-gaap	Regulated Operating Revenue Gas RegulatedOperatingRevenueGas	638464000	USD
CY2018Q2	us-gaap	Regulated Operating Revenue Gas RegulatedOperatingRevenueGas	292521000	USD
CY2018Q3	us-gaap	Regulated Operating Revenue Gas RegulatedOperatingRevenueGas	238280000	USD
CY2018Q4	us-gaap	Regulated Operating Revenue Gas RegulatedOperatingRevenueGas	464466000	USD
CY2018Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	130290000	USD
CY2018Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	41043000	USD
CY2018Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	36241000	USD
CY2018Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	80855000	USD
CY2018Q1	us-gaap	Net Income Loss NetIncomeLoss	90835000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	20419000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	16276000	USD
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	44704000	USD
CY2018Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.73
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.39
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.31
CY2018Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.85
CY2018Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.72
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.39
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.31
CY2018Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.84

Files In Submission

Name	View Source	Status
0001587732-20-000017-index-headers.html	Edgar Link	pending
0001587732-20-000017-index.html	Edgar Link	pending
0001587732-20-000017.txt	Edgar Link	pending
0001587732-20-000017-xbrl.zip	Edgar Link	pending
capture.jpg	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
ogs-20191231.xsd	Edgar Link	pending
ogs-20191231_cal.xml	Edgar Link	unprocessable
ogs-20191231_def.xml	Edgar Link	unprocessable
ogs-20191231_lab.xml	Edgar Link	unprocessable
ogs-20191231_pre.xml	Edgar Link	unprocessable
ogs10-k2019exhibit211.htm	Edgar Link	pending
ogs10-k2019exhibit231.htm	Edgar Link	pending
ogs10-k2019exhibit311.htm	Edgar Link	pending
ogs10-k2019exhibit312.htm	Edgar Link	pending
ogs10-k2019exhibit321.htm	Edgar Link	pending
ogs10-k2019exhibit322.htm	Edgar Link	pending
ogs10k2019exhibit1016.htm	Edgar Link	pending
ogs10k2019exhibit1020.htm	Edgar Link	pending
ogs10k2019exhibit1021.htm	Edgar Link	pending
ogs10k2019exhibit1031.htm	Edgar Link	pending
ogs10k2019exhibit45.htm	Edgar Link	pending
onegas10-k2019.htm	Edgar Link	pending
onegas10-k2019_htm.xml	Edgar Link	completed
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$OGS
ONE Gas, Inc. Stock $ogs

2019 Q4 Form 10-K Financial Statement

#000158773220000017 Filed on February 20, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$OGS ONE Gas, Inc. Stock $ogs

2019 Q4 Form 10-K Financial Statement

#000158773220000017 Filed on February 20, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$OGS
ONE Gas, Inc. Stock $ogs