Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Operating Activities
Net Income	$ 10,727	$ 13,747
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	5,761	5,021
Depreciation and accretion included in other costs	1,398	1,055
Deferred income taxes, net	5,373	8,889
(Gain) loss on sale of assets	(36)	57
Unrealized (gain) loss on commodity contracts	60	(83)
Unrealized gain on investments	(317)	(143)
Employee benefits	126	444
Share-based compensation	345	329
Other, net	(7)	(16)
Changes in assets and liabilities:
Purchase of investments	(29)	(44)
Accounts receivable and accrued revenue	9,760	7,466
Propane inventory, storage gas and other inventory	5,830	5,777
Regulatory assets	1,106	488
Prepaid expenses and other current assets	1,452	1,528
Accounts payable and other accrued liabilities	(8,139)	(11,041)
Income taxes receivable	1,398	(270)
Accrued interest	1,290	844
Customer deposits and refunds	(409)	(2,165)
Accrued compensation	(2,305)	(2,009)
Regulatory liabilities	799	4,372
Other liabilities	367	24
Net cash provided by operating activities	34,550	34,270
Investing Activities
Property, plant and equipment expenditures	(14,744)	(8,355)
Proceeds from sales of assets	2,170	299
Purchase of investments	(124)
Environmental expenditures	(55)	(164)
Net cash used in investing activities	(12,753)	(8,220)
Financing Activities
Common stock dividends	(2,989)	(2,836)
Purchase of stock for Dividend Reinvestment Plan	(327)	(307)
Change in cash overdrafts due to outstanding checks	(1,550)	(2,791)
Net repayment under line of credit agreements	(17,501)	(19,740)
Repayment of long-term debt	(20)	(35)
Net cash used in financing activities	(22,387)	(25,709)
Net Increase (Decrease) in Cash and Cash Equivalents	(590)	341
Cash and Cash Equivalents-Beginning of Period	2,637	1,643
Cash and Cash Equivalents-End of Period	$ 2,047	$ 1,984