Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Operating Activities
Net Income	$ 48,279	$ 39,886
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	30,662	24,500
Depreciation and accretion included in other costs	5,061	4,807
Deferred income taxes	12,810	12,232
Gain on sale of discontinued operations	0	(200)
Realized gain on commodity contracts and sale of assets	(5,342)	(3,496)
Unrealized (gain) loss on investments/commodity contracts	(988)	130
Employee benefits and compensation	(346)	21
Share-based compensation	3,315	2,322
Changes in assets and liabilities:
Accounts receivable and accrued revenue	23,664	11,455
Propane inventory, storage gas and other inventory	(1,085)	4,140
Regulatory assets/liabilities, net	7,711	4,133
Prepaid expenses and other current assets	2,789	6,016
Accounts payable and other accrued liabilities	6,563	(1,604)
Income taxes (payable) receivable	4,514	(1,480)
Customer deposits and refunds	681	(232)
Accrued compensation	(3,397)	(7,086)
Other assets and liabilities, net	(675)	(3,866)
Net cash provided by operating activities	134,216	91,678
Investing Activities
Property, plant and equipment expenditures	(104,631)	(82,779)
Proceeds from sale of assets	497	4,273
Proceeds from the sale of discontinued operations	0	200
Environmental expenditures	395	1,948
Net cash used in investing activities	(104,529)	(80,254)
Financing Activities
Common stock dividends	(15,047)	(12,976)
Issuance of stock under the Dividend Reinvestment Plan, net of offering fees	4,799	359
Tax withholding payments related to net settled stock compensation	(1,478)	(977)
Change in cash overdrafts due to outstanding checks	(1,101)	(1,690)
Net advances (repayments) under line of credit agreements	(5,249)	40,578
Repayment of long-term debt, net of offering fees	0	(13)
Repayment of long-term debt	(10,099)	(40,100)
Net cash used in financing activities	(28,175)	(14,819)
Net Increase (Decrease) in Cash and Cash Equivalents	1,512	(3,395)
Cash and Cash Equivalents—Beginning of Period	3,499	6,985
Cash and Cash Equivalents—End of Period	$ 5,011	$ 3,590