Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Operating Activities
Net Income	$ 19,664	$ 18,942
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	14,936	14,075
Depreciation and accretion included in other costs	3,755	3,248
Deferred income taxes, net	14,183	9,847
(Gain) loss on sale of assets	(449)	37
Unrealized gain on commodity contracts	(33)	(443)
Unrealized gain on investments	(51)	(13)
Employee benefits	(607)	(594)
Share-based compensation	1,078	899
Other, net	(43)	(155)
Changes in assets and liabilities:
Sale (purchase) of investments	699	(234)
Accounts receivable and accrued revenue	28,975	23,337
Propane inventory, storage gas and other inventory	159	(411)
Regulatory assets	962	967
Prepaid expenses and other current assets	(744)	621
Accounts payable and other accrued liabilities	(25,783)	(13,977)
Income taxes receivable	(3,064)	(6,392)
Accrued interest	1,562	1,381
Customer deposits and refunds	727	1,891
Accrued compensation	(1,220)	735
Regulatory liabilities	(1,534)	453
Other liabilities	(398)	580
Net cash provided by operating activities	52,774	54,794
Investing Activities
Property, plant and equipment expenditures	(33,377)	(26,201)
Proceeds from sales of assets	905	90
Purchase of investments	(300)	(2,308)
Environmental expenditures	(525)	(522)
Net cash used in investing activities	(33,297)	(28,941)
Financing Activities
Common stock dividends	(8,673)	(8,187)
(Purchase) issuance of stock for Dividend Reinvestment Plan	(920)	405
Change in cash overdrafts due to outstanding checks	1,079	7,020
Net repayment under line of credit agreements	(9,346)	(23,069)
Other short-term borrowing	(29,100)	29,100
Proceeds from issuance of long-term debt	29,000
Repayment of long-term debt	(1,390)	(31,207)
Net cash used in financing activities	(19,350)	(25,938)
Net Increase (decrease) in Cash and Cash Equivalents	127	(85)
Cash and Cash Equivalents - Beginning of Period	1,643	2,828
Cash and Cash Equivalents - End of Period	$ 1,770	$ 2,743