Consolidated Balance Sheets - USD ($) $ in Thousands		Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment
Regulated Energy		$ 1,297,416	$ 1,073,736
Unregulated Energy		237,682	210,682
Other businesses and eliminations		34,585	27,699
Total property, plant and equipment		1,569,683	1,312,117
Less: Accumulated depreciation and amortization		(294,295)	(270,599)
Plus: Construction work in progress		108,584	84,509
Net property, plant and equipment		1,383,972	1,126,027
Current Assets
Cash and cash equivalents		6,089	5,614
Accounts receivable (less allowance for uncollectible accounts of $1,108 and $936, respectively)		85,404	77,223
Accrued revenue		27,499	22,279
Propane inventory, at average cost		9,791	8,324
Other inventory, at average cost		7,127	12,022
Regulatory assets		4,796	10,930
Storage gas prepayments		6,603	5,250
Income taxes receivable		15,300	14,778
Prepaid expenses		10,079	13,621
Derivative assets, at fair value		13,165	1,286
Other current assets		5,684	7,260
Total current assets		191,537	178,587
Deferred Charges and Other Assets
Goodwill		25,837	19,604
Other intangible assets, net		6,207	4,686
Investments, at fair value		6,711	6,756
Regulatory assets		72,422	75,575
Receivables and other deferred charges		6,985	3,699
Total deferred charges and other assets		118,162	110,320
Total Assets		1,693,671	1,414,934
Stockholders’ equity
Preferred stock, par value $0.01 per share (authorized 2,000,000 shares), no shares issued and outstanding		0	0
Common stock, par value $0.4867 per share (authorized 50,000,000 shares)		7,971	7,955
Additional paid-in capital		255,651	253,470
Retained earnings		261,530	229,141
Accumulated other comprehensive loss		(6,713)	(4,272)
Deferred compensation obligation		3,854	3,395
Treasury stock		(3,854)	(3,395)
Total stockholders’ equity	[1]	518,439	486,294
Long-term debt, net of current maturities		316,020	197,395
Total capitalization		834,459	683,689
Current Liabilities
Current portion of long-term debt		11,935	9,421
Short-term borrowing		294,458	250,969
Accounts payable		129,804	74,688
Customer deposits and refunds		34,155	34,751
Accrued interest		2,317	1,742
Dividends payable		6,060	5,312
Accrued compensation		13,923	13,112
Regulatory liabilities		7,883	6,485
Derivative liabilities, at fair value		14,871	6,247
Other accrued liabilities		12,828	10,273
Total current liabilities		528,234	413,000
Deferred Credits and Other Liabilities
Deferred income taxes		156,820	135,850
Regulatory liabilities		135,039	140,978
Environmental liabilities		7,638	8,263
Other pension and benefit costs		28,513	29,699
Deferred investment tax credits and other liabilities		2,968	3,455
Total deferred credits and other liabilities		330,978	318,245
Commitments and Contingencies
Total Capitalization and Liabilities		$ 1,693,671	$ 1,414,934

[1] Includes 97,053, 90,961 and 76,745 shares at December 31, 2018, 2017 and 2016, respectively, held in a Rabbi Trust related to our Non-Qualified Deferred Compensation Plan