CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2016	Sep. 30, 2015
PROPERTY, PLANT AND EQUIPMENT
Utility plant, at cost	$ 2,084,003	$ 1,908,024
Construction work in progress	87,206	155,553
Solar and wind equipment, real estate properties and other, at cost	610,364	481,003
Construction work in progress	62,956	77,705
Total property, plant and equipment	2,844,529	2,622,285
Accumulated depreciation and amortization, utility plant	(465,839)	(437,097)
Accumulated depreciation and amortization, solar and wind equipment, real estate properties and other	(74,666)	(56,927)
Property, plant and equipment, net	2,304,024	2,128,261
CURRENT ASSETS
Cash and cash equivalents	94,808	4,928
Customer accounts receivable
Billed	144,077	155,273
Unbilled revenues	6,300	6,372
Allowance for doubtful accounts	(4,937)	(5,189)
Regulatory assets	25,122	24,258
Gas in storage, at average cost	159,073	163,905
Materials and supplies, at average cost	10,401	7,138
Prepaid and accrued taxes	37,719	36,810
Derivatives, at fair value	40,147	40,743
Restricted broker margin accounts	57,606	12,990
Other	34,402	40,987
Total current assets	604,718	488,215
NONCURRENT ASSETS
Investments in equity method investees	138,998	132,002
Regulatory assets	447,226	410,155
Derivatives, at fair value	3,649	4,334
Available for sale securities	64,377	59,475
Other	69,798	61,915
Total noncurrent assets	724,048	667,881
Total assets	3,632,790	3,284,357
CAPITALIZATION
Common stock, $2.50 par value; authorized 150,000,000 shares; outstanding June 30, 2016 — 86,076,322; September 30, 2015 — 85,531,423	221,642	220,838
Premium on common stock	215,590	209,931
Accumulated other comprehensive (loss), net of tax	(5,737)	(9,394)
Treasury stock at cost and other; shares June 30, 2016 — 2,580,520; September 30, 2015 — 2,804,847	(82,745)	(92,164)
Retained earnings	822,132	777,745
Common stock equity	1,170,882	1,106,956
Long-term debt	967,802	843,595
Total capitalization	2,138,684	1,950,551
CURRENT LIABILITIES
Current maturities of long-term debt	11,362	11,138
Short-term debt	244,625	66,350
Gas purchases payable	123,752	151,375
Gas purchases payable to related parties	1,151	1,601
Accounts payable and other	70,408	99,651
Dividends payable	20,658	20,528
Accrued taxes	813	1,326
Regulatory liabilities	6,572	12,154
New Jersey clean energy program	16,507	14,293
Derivatives, at fair value	82,300	32,791
Broker margin accounts	0	4,103
Customers' credit balances and deposits	23,324	20,790
Total current liabilities	601,472	436,100
NONCURRENT LIABILITIES
Deferred income taxes	469,119	444,935
Deferred investment tax credits	4,698	4,940
Deferred gain	28,722	29,334
Derivatives, at fair value	24,567	5,529
Manufactured gas plant remediation	175,310	180,400
Postemployment employee benefit liability	108,655	137,414
Regulatory liabilities	50,664	67,533
Asset retirement obligation	21,676	19,145
Other	9,223	8,476
Total noncurrent liabilities	892,634	897,706
Commitments and contingent liabilities (Note 12)
Total capitalization and liabilities	$ 3,632,790	$ 3,284,357