Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment
Regulated energy	$ 957,681	$ 842,756
Unregulated energy	196,800	145,734
Other businesses and eliminations	21,114	18,999
Total property, plant and equipment	1,175,595	1,007,489
Less: Accumulated depreciation and amortization	(245,207)	(215,313)
Plus: Construction work in progress	56,276	62,774
Net property, plant and equipment	986,664	854,950
Current Assets
Cash and cash equivalents	4,178	2,855
Accounts receivable (less allowance for uncollectible accounts of $909 for 2016 and 2015)	62,803	41,007
Accrued revenue	16,986	12,452
Propane inventory, at average cost	6,457	6,619
Other inventory, at average cost	4,576	3,803
Regulatory assets	7,694	8,268
Storage gas prepayments	5,484	3,410
Income taxes receivable	22,888	24,950
Prepaid expenses	6,792	7,146
Mark-to-market energy assets	823	153
Other current assets	2,470	1,044
Total current assets	141,151	111,707
Deferred Charges and Other Non-Current Assets
Goodwill	15,070	14,548
Other intangible assets, net	1,843	2,222
Investments, at fair value	4,902	3,644
Regulatory assets	76,803	77,519
Receivables and other deferred charges	2,786	2,831
Total deferred charges and other non-current assets	101,404	100,764
Total Assets	1,229,219	1,067,421
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 25,000,000 shares)	7,935	7,432
Additional paid-in capital	250,967	190,311
Retained earnings	192,062	166,235
Accumulated other comprehensive loss	(4,878)	(5,840)
Deferred compensation obligation	2,416	1,883
Treasury stock	(2,416)	(1,883)
Total stockholders’ equity	446,086	358,138
Long-term debt, net of current maturities	136,954	149,006
Total capitalization	583,040	507,144
Current Liabilities
Current portion of long-term debt	12,099	9,151
Short-term borrowing	209,871	173,397
Accounts payable	56,935	39,300
Customer deposits and refunds	29,238	27,173
Accrued interest	1,312	1,311
Dividends payable	4,973	4,390
Accrued compensation	10,496	10,014
Regulatory liabilities	1,291	7,365
Mark-to-market energy liabilities	773	433
Other accrued liabilities	7,063	7,059
Total current liabilities	334,051	279,593
Deferred Credits and Other Liabilities
Deferred income taxes	222,894	192,600
Regulatory liabilities	43,064	43,064
Environmental liabilities	8,592	8,942
Other pension and benefit costs	32,828	33,481
Deferred investment tax credits and other liabilities	4,750	2,597
Total deferred credits and other liabilities	312,128	280,684
Commitments and Contingencies
Total Capitalization and Liabilities	$ 1,229,219	$ 1,067,421