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Consolidated Statements Of Cash Flows (USD $) In Millions	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Operating Activities:
Net Income	$ 8.0	$ 4.5
Adjustments to Reconcile Net Income to Cash Provided by Operating Activities:
Depreciation and Amortization	15.6	14.3
Deferred Tax Provision (Benefit)	4.5	(5.3)
Changes in Working Capital Items:
Accounts Receivable	4.0	5.6
Accrued Revenue	20.7	21.5
Taxes Refundable / Payable	7.9	7.3
Gas Inventory	2.3	3.2
Accounts Payable	(10.7)	(8.4)
Other Changes in Working Capital Items	(1.8)	(2.3)
Deferred Regulatory and Other Charges	(0.6)	(9.1)
Other, net	(3.3)	(4.3)
Cash Provided by Operating Activities	46.6	27.0
Investing Activities:
Property, Plant and Equipment Additions	(25.1)	(19.2)
Cash (Used in) Investing Activities	(25.1)	(19.2)
Financing Activities:
Repayment of Short-Term Debt	(15.5)	(39.9)
Proceeds From Issuance (Repayment of) Long-Term Debt, net	(0.2)	39.7
Net Decrease in Gas Inventory Financing	(1.2)	(1.6)
Dividends Paid	(7.6)	(7.6)
Proceeds from Issuance of Common Stock, net	0.5	0.5
Other, net	(0.6)	(0.3)
Cash (Used in) Financing Activities	(24.6)	(9.2)
Net (Decrease) in Cash	(3.1)	(1.4)
Cash at Beginning of Period	8.9	7.7
Cash at End of Period	5.8	6.3
Supplemental Cash Flow Information:
Interest Paid	10.8	9.7
Income Taxes Paid (Refunded)	$ (7.3)	$ 1.0

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