Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Operating Activities
Net Income	$ 17,681	$ 14,869
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	6,635	5,820
Depreciation and accretion included in other costs	1,783	1,476
Deferred income taxes, net	(231)	2,208
(Gain) loss on sale of assets	(8)	(8)
Unrealized (gain) loss on commodity contracts	68	(214)
Unrealized gain on investments	(37)	(283)
Realized gain on sales of investments, net	0	(69)
Employee benefits	162	209
Share-based compensation	638	381
Other, net	(1)	(3)
Changes in assets and liabilities:
Purchase of investments	184	(7)
Accounts receivable and accrued revenue	(3,647)	(8,657)
Propane inventory, storage gas and other inventory	8,243	5,064
Regulatory assets	(2,788)	852
Prepaid expenses and other current assets	2,185	1,469
Accounts payable and other accrued liabilities	4,821	1,510
Income taxes receivable	11,565	8,899
Accrued interest	1,301	1,185
Customer deposits and refunds	(1,735)	(2,520)
Accrued compensation	(3,505)	(2,753)
Regulatory liabilities	2,925	5,711
Other assets and liabilities, net	(240)	21
Net cash provided by operating activities	45,999	35,160
Investing Activities
Property, plant and equipment expenditures	(18,464)	(16,409)
Proceeds from sales of assets	29	34
Payments to Acquire Businesses, Gross	0	(2,437)
Environmental expenditures	(26)	(20)
Net cash used in investing activities	(18,461)	(18,832)
Financing Activities
Common stock dividends	(3,369)	(3,176)
Purchase of stock for Dividend Reinvestment Plan	(341)	(326)
Change in cash overdrafts due to outstanding checks	(501)	83
Net borrowing (repayment) under line of credit agreements	(21,696)	(13,647)
Repayment of long-term debt	(196)	(15)
Net cash used in financing activities	(26,103)	(17,081)
Net Decrease in Cash and Cash Equivalents	1,435	(753)
Cash and Cash Equivalents-Beginning of Period	3,356	3,361
Cash and Cash Equivalents-End of Period	$ 4,791	$ 2,608