CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2016	Sep. 30, 2015
PROPERTY, PLANT AND EQUIPMENT
Utility plant, at cost	$ 1,982,080	$ 1,908,024
Construction work in progress	150,437	155,553
Solar and wind equipment, real estate properties and other, at cost	574,655	481,003
Construction work in progress	57,764	77,705
Total property, plant and equipment	2,764,936	2,622,285
Accumulated depreciation and amortization, utility plant	(453,924)	(437,097)
Accumulated depreciation and amortization, solar and wind equipment, real estate properties and other	(68,354)	(56,927)
Property, plant and equipment, net	2,242,658	2,128,261
CURRENT ASSETS
Cash and cash equivalents	1,880	4,928
Customer accounts receivable
Billed	148,822	155,273
Unbilled revenues	27,144	6,372
Allowance for doubtful accounts	(4,923)	(5,189)
Regulatory assets	32,638	24,258
Gas in storage, at average cost	117,490	163,905
Materials and supplies, at average cost	10,074	7,138
Prepaid and accrued taxes	3,354	36,810
Derivatives, at fair value	54,803	40,743
Restricted broker margin accounts	34,156	12,990
Other	34,423	40,987
Total current assets	459,861	488,215
NONCURRENT ASSETS
Investments in equity investees	136,974	132,002
Regulatory assets	436,178	410,155
Derivatives, at fair value	1,174	4,334
Available for sale securities	73,444	59,475
Other	69,305	61,915
Total noncurrent assets	717,075	667,881
Total assets	3,419,594	3,284,357
CAPITALIZATION
Common stock, $2.50 par value; authorized 150,000,000 shares; outstanding March 31, 2016 — 85,968,887; September 30, 2015 — 85,531,423	221,633	220,838
Premium on common stock	215,961	209,931
Accumulated other comprehensive (loss), net of tax	(675)	(9,394)
Treasury stock at cost and other; shares March 31, 2016 — 2,684,265; September 30, 2015 — 2,804,847	(87,930)	(92,164)
Retained earnings	858,493	777,745
Common stock equity	1,207,482	1,106,956
Long-term debt	844,391	843,595
Total capitalization	2,051,873	1,950,551
CURRENT LIABILITIES
Current maturities of long-term debt	11,683	11,138
Short-term debt	152,500	66,350
Gas purchases payable	120,091	151,375
Gas purchases payable to related parties	1,152	1,601
Accounts payable and other	67,649	99,651
Dividends payable	20,633	20,528
Accrued taxes	11,024	1,326
Regulatory liabilities	0	12,154
New Jersey clean energy program	5,586	14,293
Derivatives, at fair value	53,735	32,791
Broker margin accounts	12,798	4,103
Customers' credit balances and deposits	21,016	20,790
Total current liabilities	477,867	436,100
NONCURRENT LIABILITIES
Deferred income taxes	464,343	444,935
Deferred investment tax credits	4,779	4,940
Deferred gain	28,926	29,334
Derivatives, at fair value	13,913	5,529
Manufactured gas plant remediation	178,512	180,400
Postemployment employee benefit liability	107,590	137,414
Regulatory liabilities	61,333	67,533
Asset retirement obligation	21,230	19,145
Other	9,228	8,476
Total noncurrent liabilities	$ 889,854	$ 897,706
Commitments and contingent liabilities (Note 12)
Total capitalization and liabilities	$ 3,419,594	$ 3,284,357