CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Operating activities:
Net income	$ 20,512	$ 21,097
Adjustments to reconcile net income to cash flows from operating activities:
Depreciation and amortization including regulatory items	40,561	44,160
Pension and other postretirement benefit costs, net of contributions	1,187	(11,792)
Deferred income taxes and unamortized investment tax credit, net	13,496	14,155
Allowance for equity funds used during construction	(103)	(70)
Stock compensation expense	1,404	1,097
Other	(12)	(163)
Cash flows impacted by changes in:
Accounts receivable and accrued unbilled revenues	(2,062)	12,418
Fuel, materials and supplies	2,424	(4,599)
Prepaid expenses, other current assets and deferred charges	(2,602)	(13,554)
Accounts payable and accrued liabilities	(16,084)	(11,666)
Interest, taxes accrued and customer deposits	8,587	6,125
Other liabilities and other deferred credits	4,344	5,623
Accumulated provision - rate refunds		603
Net cash provided by operating activities	71,652	63,434
Investing activities:
Capital expenditures - regulated	(60,760)	(40,022)
Capital expenditures and other investments - non-regulated	(1,504)	(1,339)
Net cash used in investing activities	(62,264)	(41,361)
Financing activities:
Proceeds from first mortgage bonds, net	88,000
Long-term debt issuance costs	(974)
Debt financing costs		(815)
Proceeds from issuance of common stock net of issuance costs	4,666	4,953
Repayment of first mortgage bonds	(88,029)
Net short-term borrowings/(repayments)	5,850	(5,500)
Dividends	(21,077)	(26,732)
Other	(458)	(440)
Net cash used in financing activities	(12,022)	(28,534)
Net decrease in cash and cash equivalents	(2,634)	(6,461)
Cash and cash equivalents at beginning of period	5,408	10,525
Cash and cash equivalents at end of period	$ 2,774	$ 4,064