CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($)	Mar. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment:
Utility Plant, at original cost	$ 5,000,554,000	$ 4,905,350,000
Accumulated Depreciation	(860,010,000)	(843,998,000)
Nonutility Property and Equipment, at cost	26,571,000	25,991,000
Accumulated Depreciation	(14,202,000)	(13,807,000)
Property, Plant and Equipment - Net	4,152,913,000	4,073,536,000
Investments:
Available-for-Sale Securities	40,000	40,000
Restricted	21,694,000	21,964,000
Investment in Affiliates	89,952,000	87,087,000
Total Investments	111,686,000	109,091,000
Current Assets:
Cash and Cash Equivalents	10,339,000	6,417,000
Accounts Receivable	262,850,000	253,661,000
Unbilled Revenues	51,973,000	84,821,000
Provision for Uncollectibles	(23,533,000)	(19,829,000)
Notes Receivable - Affiliate	2,799,000	5,379,000
Natural Gas in Storage, average cost	31,068,000	54,153,000
Materials and Supplies, average cost	1,146,000	1,164,000
Prepaid Taxes	15,857,000	26,918,000
Derivatives - Energy Related Assets	31,120,000	52,892,000
Assets Held For Sale	39,829,000	143,440,000
Other Prepayments and Current Assets	38,848,000	43,492,000
Total Current Assets	462,296,000	652,508,000
Regulatory and Other Noncurrent Assets:
Regulatory Assets	699,426,000	665,932,000
Derivatives - Energy Related Assets	13,522,000	7,243,000
Notes Receivable - Affiliate	12,720,000	12,720,000
Contract Receivables	33,363,000	30,958,000
Goodwill	702,070,000	702,070,000
Other	106,494,000	111,282,000
Total Regulatory and Other Noncurrent Assets	1,567,595,000	1,530,205,000
Total Assets	6,294,490,000	6,365,340,000
Equity:
Common Stock	115,555,000	115,493,000
Premium on Common Stock	1,027,550,000	1,027,902,000
Treasury Stock (at par)	(274,000)	(289,000)
Accumulated Other Comprehensive Loss	(32,550,000)	(32,558,000)
Retained Earnings	387,002,000	313,237,000
Total Equity	1,497,283,000	1,423,785,000
Long-Term Debt	2,067,146,000	2,070,086,000
Total Capitalization	3,564,429,000	3,493,871,000
Current Liabilities:
Notes Payable	697,300,000	848,700,000
Current Portion of Long-Term Debt	470,409,000	467,909,000
Accounts Payable	187,647,000	232,242,000
Customer Deposits and Credit Balances	26,604,000	35,004,000
Environmental Remediation Costs	55,446,000	43,849,000
Taxes Accrued	9,311,000	2,235,000
Derivatives - Energy Related Liabilities	30,710,000	41,965,000
Deferred Contract Revenues	186,000	0
Derivatives - Other Current	1,736,000	1,155,000
Liabilities Held for Sale	5,804,000	6,043,000
Dividends Payable	27,271,000	0
Interest Accrued	19,305,000	13,580,000
Pension Benefits	3,727,000	3,727,000
Other Current Liabilities	30,223,000	35,486,000
Total Current Liabilities	1,565,679,000	1,731,895,000
Deferred Credits and Other Noncurrent Liabilities:
Deferred Income Taxes - Net	133,452,000	92,166,000
Pension and Other Postretirement Benefits	114,101,000	114,055,000
Environmental Remediation Costs	184,000,000	189,036,000
Asset Retirement Obligations	264,511,000	263,950,000
Derivatives - Energy Related Liabilities	5,284,000	8,206,000
Derivatives - Other Noncurrent	18,489,000	11,505,000
Regulatory Liabilities	430,498,000	442,918,000
Other	14,047,000	17,738,000
Total Deferred Credits and Other Noncurrent Liabilities	1,164,382,000	1,139,574,000
Commitments and Contingencies  (Note 11)
Total Capitalization and Liabilities	6,294,490,000	6,365,340,000
SJG
Property, Plant and Equipment:
Utility Plant, at original cost	3,208,462,000	3,154,736,000
Accumulated Depreciation	(571,203,000)	(558,634,000)
Property, Plant and Equipment - Net	2,637,259,000	2,596,102,000
Investments:
Restricted	5,086,000	4,073,000
Total Investments	5,086,000	4,073,000
Current Assets:
Cash and Cash Equivalents	2,560,000	2,678,000
Accounts Receivable	112,606,000	84,940,000
Accounts Receivable - Related Parties	1,464,000	2,333,000
Unbilled Revenues	24,916,000	45,016,000
Provision for Uncollectibles	(14,902,000)	(14,032,000)
Natural Gas in Storage, average cost	4,362,000	14,839,000
Materials and Supplies, average cost	619,000	619,000
Prepaid Taxes	11,513,000	19,547,000
Derivatives - Energy Related Assets	7,553,000	16,904,000
Other Prepayments and Current Assets	21,746,000	25,074,000
Total Current Assets	172,437,000	197,918,000
Regulatory and Other Noncurrent Assets:
Regulatory Assets	518,184,000	496,177,000
Long-Term Receivables	33,363,000	30,958,000
Derivatives - Energy Related Assets	80,000	5,000
Goodwill	0
Other	20,946,000	23,322,000
Total Regulatory and Other Noncurrent Assets	572,573,000	550,462,000
Total Assets	3,387,355,000	3,348,555,000
Equity:
Common Stock	5,848,000	5,848,000
Premium on Common Stock	355,744,000	355,744,000
Accumulated Other Comprehensive Loss	(27,867,000)	(27,875,000)
Retained Earnings	826,703,000	756,181,000
Total Equity	1,160,428,000	1,089,898,000
Long-Term Debt	544,228,000	547,161,000
Total Capitalization	1,704,656,000	1,637,059,000
Current Liabilities:
Notes Payable	142,500,000	171,300,000
Current Portion of Long-Term Debt	420,409,000	417,909,000
Accounts Payable - Commodity	12,135,000	17,361,000
Accounts Payable - Other	56,367,000	60,797,000
Accounts Payable - Related Parties	6,764,000	9,752,000
Customer Deposits and Credit Balances	17,600,000	22,430,000
Environmental Remediation Costs	35,468,000	29,569,000
Taxes Accrued	5,875,000	1,907,000
Derivatives - Energy Related Liabilities	6,628,000	14,671,000
Derivatives - Other Current	464,000	488,000
Interest Accrued	3,957,000	6,789,000
Pension Benefits	3,693,000	3,693,000
Other Current Liabilities	12,780,000	12,489,000
Total Current Liabilities	724,640,000	769,155,000
Deferred Credits and Other Noncurrent Liabilities:
Deferred Income Taxes - Net	389,366,000	357,637,000
Pension and Other Postretirement Benefits	100,717,000	99,981,000
Environmental Remediation Costs	97,471,000	101,693,000
Asset Retirement Obligations	97,322,000	96,509,000
Derivatives - Energy Related Liabilities	89,000	95,000
Derivatives - Other Noncurrent	10,911,000	7,368,000
Regulatory Liabilities	257,539,000	274,482,000
Other	4,644,000	4,576,000
Total Deferred Credits and Other Noncurrent Liabilities	958,059,000	942,341,000
Commitments and Contingencies  (Note 11)
Total Capitalization and Liabilities	$ 3,387,355,000	$ 3,348,555,000