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v2.4.1.9

BALANCE SHEETS (USD $) In Thousands, unless otherwise specified | Mar. 31, 2015 | Dec. 31, 2014
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Property, plant and equipment |  |
Property, plant and equipment | $ 4,904,206 us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService | $ 4,850,201 us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService
Accumulated depreciation and amortization | 1,578,438 us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation | 1,556,481 us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation
Net property, plant and equipment | 3,325,768 us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet | 3,293,720 us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet
Current assets |  |
Cash and cash equivalents | 142,502 us-gaap_CashAndCashEquivalentsAtCarryingValue | 11,943 us-gaap_CashAndCashEquivalentsAtCarryingValue
Accounts receivable, net | 308,850 us-gaap_ReceivablesNetCurrent | 326,749 us-gaap_ReceivablesNetCurrent
Income tax receivable | 5,590 us-gaap_IncomeTaxReceivable | 43,800 us-gaap_IncomeTaxReceivable
Natural gas in storage | 81,277 us-gaap_PublicUtilitiesInventory | 185,300 us-gaap_PublicUtilitiesInventory
Regulatory assets (Note 2) | 22,322 us-gaap_RegulatoryAssetsCurrent | 50,193 us-gaap_RegulatoryAssetsCurrent
Other current assets | 43,903 us-gaap_OtherAssetsCurrent | 49,516 us-gaap_OtherAssetsCurrent
Total current assets | 604,444 us-gaap_AssetsCurrent | 667,501 us-gaap_AssetsCurrent
Goodwill and other assets |  |
Regulatory assets (Note 2) | 465,049 us-gaap_RegulatoryAssetsNoncurrent | 478,723 us-gaap_RegulatoryAssetsNoncurrent
Goodwill | 157,953 us-gaap_Goodwill | 157,953 us-gaap_Goodwill
Other assets | 52,274 us-gaap_OtherAssetsNoncurrent | 51,313 us-gaap_OtherAssetsNoncurrent
Total goodwill and other assets | 675,276 ogs_Totalgoodwillandotherassets | 687,989 ogs_Totalgoodwillandotherassets
Total assets | 4,605,488 us-gaap_Assets | 4,649,210 us-gaap_Assets
Equity and long-term debt |  |
Common stock, $0.01 par value: authorized 250,000,000 shares; issued and outstanding 52,590,112 shares at March 31, 2015; issued and outstanding 52,083,859 at December 31, 2014 | 526 us-gaap_CommonStockValue | 521 us-gaap_CommonStockValue
Paid-in Capital | 1,759,934 us-gaap_AdditionalPaidInCapital | 1,758,796 us-gaap_AdditionalPaidInCapital
Retained earnings | 84,239 us-gaap_RetainedEarningsAccumulatedDeficit | 39,894 us-gaap_RetainedEarningsAccumulatedDeficit
Accumulated other comprehensive income (loss) | (5,034)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax | (5,174)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
Total equity | 1,839,665 us-gaap_StockholdersEquity | 1,794,037 us-gaap_StockholdersEquity
Long-term debt, excluding current maturities | 1,201,310 us-gaap_LongTermDebtNoncurrent | 1,201,311 us-gaap_LongTermDebtNoncurrent
Total equity and long-term debt | 3,040,975 us-gaap_CapitalizationLongtermDebtAndEquity | 2,995,348 us-gaap_CapitalizationLongtermDebtAndEquity
Current liabilities |  |
Current maturities of long-term debt | 6 us-gaap_LongTermDebtCurrent | 6 us-gaap_LongTermDebtCurrent
Notes payable | 0 us-gaap_CommercialPaper | 42,000 us-gaap_CommercialPaper
Accounts payable | 105,058 us-gaap_AccountsPayableCurrent | 159,064 us-gaap_AccountsPayableCurrent
Accrued taxes other than income | 47,859 us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrent | 44,742 us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrent
Accrued liabilities | 13,648 us-gaap_AccruedLiabilitiesCurrent | 26,019 us-gaap_AccruedLiabilitiesCurrent
Customer deposits | 60,856 us-gaap_CustomerDepositsCurrent | 60,003 us-gaap_CustomerDepositsCurrent
Regulatory liabilities | 54,252 us-gaap_RegulatoryLiabilityCurrent | 32,467 us-gaap_RegulatoryLiabilityCurrent
Other current liabilities | 18,324 us-gaap_OtherLiabilitiesCurrent | 28,132 us-gaap_OtherLiabilitiesCurrent
Total current liabilities | 300,003 us-gaap_LiabilitiesCurrent | 392,433 us-gaap_LiabilitiesCurrent
Deferred credits and other liabilities [Abstract] |  |
Deferred income taxes | 897,458 us-gaap_DeferredTaxLiabilitiesNoncurrent | 894,585 us-gaap_DeferredTaxLiabilitiesNoncurrent
Employee benefit obligations | 286,654 us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent | 287,779 us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
Other deferred credits | 80,398 us-gaap_OtherLiabilitiesNoncurrent | 79,065 us-gaap_OtherLiabilitiesNoncurrent
Total deferred credits and other liabilities | 1,264,510 ogs_TotalDeferredCreditsAndOtherLiabilities | 1,261,429 ogs_TotalDeferredCreditsAndOtherLiabilities
Commitments and contingencies (Note 8) |  |
Total liabilities and equity | $ 4,605,488 us-gaap_LiabilitiesAndStockholdersEquity | $ 4,649,210 us-gaap_LiabilitiesAndStockholdersEquity

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