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v2.4.1.9

STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2015 | Mar. 31, 2014
Gross Margin |  |
Revenues | $ 676,531 us-gaap_RegulatedOperatingRevenueGas | $ 766,178 us-gaap_RegulatedOperatingRevenueGas
Cost of natural gas | 413,553 us-gaap_UtilitiesOperatingExpenseGasAndPetroleumPurchased | 506,342 us-gaap_UtilitiesOperatingExpenseGasAndPetroleumPurchased
Net margin | 262,978 us-gaap_GrossProfit | 259,836 us-gaap_GrossProfit
Operating expenses |  |
Operations and maintenance | 106,561 us-gaap_UtilitiesOperatingExpenseMaintenanceAndOperations | 103,499 us-gaap_UtilitiesOperatingExpenseMaintenanceAndOperations
Depreciation and amortization | 31,630 us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization | 31,460 us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization
General taxes | 15,782 us-gaap_UtilitiesOperatingExpenseTaxes | 15,524 us-gaap_UtilitiesOperatingExpenseTaxes
Total operating expenses | 153,973 us-gaap_UtilitiesOperatingExpense | 150,483 us-gaap_UtilitiesOperatingExpense
Operating income | 109,005 us-gaap_OperatingIncomeLoss | 109,353 us-gaap_OperatingIncomeLoss
Other income | 813 us-gaap_OtherNonoperatingIncome | 633 us-gaap_OtherNonoperatingIncome
Other expense | (454)us-gaap_OtherNonoperatingExpense | (1,148)us-gaap_OtherNonoperatingExpense
Interest expense | (11,169)us-gaap_InterestExpense | (12,950)us-gaap_InterestExpense
Income before income taxes | 98,195 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 95,888 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
Income taxes | (37,814)us-gaap_IncomeTaxExpenseBenefit | (36,812)us-gaap_IncomeTaxExpenseBenefit
Net income | $ 60,381 us-gaap_NetIncomeLoss | $ 59,076 us-gaap_NetIncomeLoss
Earnings per share (Note 6) |  |
Basic | $ 1.15 us-gaap_EarningsPerShareBasic | $ 1.13 us-gaap_EarningsPerShareBasic
Diluted | $ 1.13 us-gaap_EarningsPerShareDiluted | $ 1.13 us-gaap_EarningsPerShareDiluted
Average shares (thousands) |  |
Basic | 52,707 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic | 52,334 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Diluted | 53,446 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding | 52,512 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
Dividends declared per share of stock | $ 0.30 us-gaap_CommonStockDividendsPerShareCashPaid | $ 0.00 us-gaap_CommonStockDividendsPerShareCashPaid

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