CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Property, Plant and Equipment:
Utility Plant, at original cost	$ 4,200,565	$ 2,652,244
Accumulated Depreciation	(781,824)	(498,161)
Nonutility Property and Equipment, at cost	161,250	741,027
Accumulated Depreciation	(49,888)	(194,913)
Property, Plant and Equipment - Net	3,530,103	2,700,197
Investments:
Available-for-Sale Securities	36	36
Restricted Investments	10,002	31,876
Investment in Affiliates	74,811	62,292
Total Investments	84,849	94,204
Current Assets:
Cash and Cash Equivalents	3,314	7,819
Accounts Receivable	220,561	202,379
Unbilled Revenues	29,313	73,377
Provision for Uncollectibles	(20,292)	(13,988)
Notes Receivable - Affiliate	3,552	4,913
Natural Gas in Storage, average cost	84,373	48,513
Materials and Supplies, average cost	4,574	4,239
Prepaid Taxes	28,185	41,355
Derivatives - Energy Related Assets	27,414	42,139
Assets Held For Sale	329,622	0
Other Prepayments and Current Assets	26,703	28,247
Total Current Assets	737,319	438,993
Regulatory and Other Noncurrent Assets:
Regulatory Assets	628,977	469,224
Derivatives - Energy Related Assets	8,014	5,988
Notes Receivable - Affiliate	13,275	13,275
Contract Receivables	27,934	28,721
Goodwill	759,826	3,578
Other (See Note 1)	124,225	110,906
Total Regulatory and Other Noncurrent Assets	1,562,251	631,692
Total Assets	5,914,522	3,865,086
Equity:
Common Stock	106,883	99,436
Other Paid-In Capital and Premium on Common Stock	843,064	709,658
Treasury Stock (at par)	(287)	(271)
Accumulated Other Comprehensive Loss	(36,740)	(36,765)
Retained Earnings	321,912	420,351
Total Equity	1,234,832	1,192,409
Long-Term Debt	1,281,000	1,122,999
Total Capitalization	2,515,832	2,315,408
Current Liabilities:
Notes Payable	421,400	346,400
Current Portion of Long-Term Debt	1,482,734	63,809
Accounts Payable	383,465	284,899
Customer Deposits and Credit Balances	35,109	43,398
Environmental Remediation Costs	59,799	66,372
Taxes Accrued	3,924	2,932
Derivatives - Energy Related Liabilities	23,469	46,938
Deferred Contract Revenues	407	259
Derivatives - Other Current	339	748
Dividends Payable	23,942	0
Interest Accrued	12,125	9,079
Pension Benefits	2,388	2,388
Other Current Liabilities	22,053	15,860
Total Current Liabilities	2,471,154	883,082
Deferred Credits and Other Noncurrent Liabilities:
Deferred Income Taxes - Net	85,840	86,884
Pension and Other Postretirement Benefits	114,765	101,544
Environmental Remediation Costs	163,047	106,483
Asset Retirement Obligations	44,255	59,497
Derivatives - Energy Related Liabilities	3,997	6,025
Derivatives - Other Noncurrent	5,125	9,622
Regulatory Liabilities	481,512	287,105
Other	28,995	9,436
Total Deferred Credits and Other Noncurrent Liabilities	927,536	666,596
Commitments and Contingencies (Note 11)
Total Capitalization and Liabilities	5,914,522	3,865,086
SJG Utility Operations
Property, Plant and Equipment:
Utility Plant, at original cost	2,812,128	2,652,244
Accumulated Depreciation	(519,924)	(498,161)
Property, Plant and Equipment - Net	2,292,204	2,154,083
Investments:
Restricted Investments	532	2,912
Total Investments	532	2,912
Current Assets:
Cash and Cash Equivalents	1,647	1,707
Accounts Receivable	72,010	78,571
Accounts Receivable - Related Parties	2,235	988
Unbilled Revenues	7,995	54,980
Provision for Uncollectibles	(14,327)	(13,799)
Natural Gas in Storage, average cost	19,629	14,932
Materials and Supplies, average cost	706	825
Prepaid Taxes	25,667	38,326
Derivatives - Energy Related Assets	7,951	7,327
Other Prepayments and Current Assets	10,498	12,670
Total Current Assets	134,011	196,527
Regulatory and Other Noncurrent Assets:
Regulatory Assets	494,331	469,224
Long-Term Receivables	25,390	25,851
Derivatives - Energy Related Assets	2	5
Other (See Note 1)	19,914	17,372
Total Regulatory and Other Noncurrent Assets	539,637	512,452
Total Assets	2,966,384	2,865,974
Equity:
Common Stock	5,848	5,848
Other Paid-In Capital and Premium on Common Stock	355,744	355,744
Accumulated Other Comprehensive Loss	(25,972)	(25,997)
Retained Earnings	645,177	585,838
Total Equity	980,797	921,433
Long-Term Debt	573,441	758,052
Total Capitalization	1,554,238	1,679,485
Current Liabilities:
Notes Payable	140,200	52,000
Current Portion of Long-Term Debt	238,909	63,809
Customer Deposits and Credit Balances	27,051	41,656
Accounts Payable - Commodity	30,365	43,341
Accounts Payable - Other	49,654	41,365
Accounts Payable - Related Parties	7,090	17,029
Environmental Remediation Costs	40,682	66,040
Taxes Accrued	1,665	1,760
Derivatives - Energy Related Liabilities	2,804	9,270
Derivatives - Other Current	291	389
Interest Accrued	4,832	7,615
Pension Benefits	2,353	2,353
Other Current Liabilities	6,066	7,027
Total Current Liabilities	551,962	353,654
Deferred Credits and Other Noncurrent Liabilities:
Deferred Income Taxes - Net	311,274	280,746
Pension and Other Postretirement Benefits	94,305	88,871
Environmental Remediation Costs	111,298	105,656
Asset Retirement Obligations	43,451	58,714
Derivatives - Energy Related Liabilities	68	170
Derivatives - Other Noncurrent	4,751	6,639
Regulatory Liabilities	290,033	287,105
Other	5,004	4,934
Total Deferred Credits and Other Noncurrent Liabilities	860,184	832,835
Total Capitalization and Liabilities	$ 2,966,384	$ 2,865,974