Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Operating Activities
Net Income	$ 38,779	$ 32,023
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	30,176	27,267
Depreciation and accretion included in other costs	6,464	5,989
Deferred income taxes	11,047	29,520
Realized loss (gain) on commodity contracts/sale of assets/investments	4,015	(2,817)
Unrealized gain on investments/commodity contracts	(427)	(695)
Employee benefits and compensation	456	1,212
Share-based compensation	2,535	1,608
Other, net	(35)	(39)
Changes in assets and liabilities:
Accounts receivable and accrued revenue	32,988	12,912
Propane inventory, storage gas and other inventory	6,379	(8,256)
Regulatory assets/liabilities, net	3,899	927
Prepaid expenses and other current assets	(1,533)	(2,860)
Accounts payable and other accrued liabilities	(9,590)	4,515
Income taxes receivable	6,053	(3,810)
Customer deposits and refunds	136	3,255
Accrued compensation	(2,804)	(2,030)
Other assets and liabilities, net	(542)	(349)
Net cash provided by operating activities	127,996	98,372
Investing Activities
Property, plant and equipment expenditures	(171,410)	(130,137)
Proceeds from sales of assets	565	601
Acquisitions, net of cash received		11,707
Environmental expenditures	(322)	(210)
Net cash used in investing activities	(171,167)	(141,453)
Financing Activities
Common stock dividends	(16,171)	(14,780)
(Purchase) issuance of stock under the Dividend Reinvestment Plan	(518)	254
Stock issuance	0	(10)
Tax Withholding payments related to net settled stock compensation	(1,210)	(692)
Change in cash overdrafts due to outstanding checks	712	(3,013)
Net borrowing (repayment) under line of credit agreements and short-term borrowing under the Revolver	16,612	(3,760)
Proceeds from long-term debt and long-term borrowing under the Revolver	74,901	69,800
Repayment of long-term debt, long-term borrowing under the Revolver and capital lease obligation	(30,554)	(5,510)
Net cash provided in financing activities	43,772	42,289
Net Increase (Decrease) in Cash and Cash Equivalents	601	(792)
Cash and Cash Equivalents—Beginning of Period	5,614	4,178
Cash and Cash Equivalents—End of Period	$ 6,215	$ 3,386