CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2018	Sep. 30, 2017
PROPERTY, PLANT AND EQUIPMENT
Utility plant, at cost	$ 2,295,000	$ 2,241,324
Construction work in progress	134,816	119,318
Solar and wind equipment, real estate properties and other, at cost	609,894	843,142
Construction work in progress	52,069	7,286
Total property, plant and equipment	3,091,779	3,211,070
Accumulated depreciation and amortization, utility plant	(507,536)	(489,122)
Accumulated depreciation and amortization, solar and wind equipment, real estate properties and other	(108,730)	(112,207)
Property, plant and equipment, net	2,475,513	2,609,741
CURRENT ASSETS
Cash and cash equivalents	4,928	2,226
Customer accounts receivable
Billed	298,824	196,467
Unbilled revenues	55,405	7,202
Allowance for doubtful accounts	(5,515)	(5,181)
Regulatory assets	15,051	50,791
Gas in storage, at average cost	71,169	202,063
Materials and supplies, at average cost	13,943	11,944
Prepaid and accrued taxes	14,395	24,764
Derivatives, at fair value	26,897	30,081
Restricted broker margin accounts	59,970	25,827
Assets held for sale	224,898	0
Other	34,660	33,260
Total current assets	814,625	579,444
NONCURRENT ASSETS
Investments in equity method investees	183,884	172,585
Regulatory assets	352,152	375,919
Derivatives, at fair value	13,616	9,164
Available for sale securities	28,228	65,752
Intangible assets, net	23,173	41,084
Other noncurrent assets	69,549	74,818
Total noncurrent assets	670,602	739,322
Total assets	3,960,740	3,928,507
CAPITALIZATION
Common stock, $2.50 par value; authorized 150,000,000 shares; outstanding March 31, 2017 — 87,656,004; September 30, 2017 — 86,555,507	225,173	222,258
Premium on common stock	256,158	219,696
Accumulated other comprehensive loss, net of tax	(13,788)	(3,256)
Treasury stock at cost and other; shares March 31, 2017 — 2,355,338; September 30, 2017 — 2,347,380	(84,401)	(70,039)
Retained earnings	1,084,232	867,984
Common stock equity	1,467,374	1,236,643
Long-term debt	997,925	997,080
Total capitalization	2,465,299	2,233,723
CURRENT LIABILITIES
Current maturities of long-term debt	165,905	165,375
Short-term debt	150,900	266,000
Gas purchases payable	179,044	160,115
Gas purchases payable to related parties	1,151	1,152
Accounts payable and other	63,867	96,878
Dividends payable	23,886	23,586
Accrued taxes	7,541	2,031
Regulatory liabilities	29,169	78
New Jersey clean energy program	5,690	14,202
Derivatives, at fair value	44,792	46,544
Disposal Group, Including Discontinued Operation, Liabilities, Current	4,262	0
Customers' credit balances and deposits	18,261	26,957
Total current liabilities	694,468	802,918
NONCURRENT LIABILITIES
Deferred income taxes	237,838	514,708
Deferred investment tax credits	4,136	4,297
Deferred gain	9,497	27,728
Derivatives, at fair value	23,603	11,330
Manufactured gas plant remediation	142,474	149,000
Postemployment employee benefit liability	129,546	128,888
Regulatory liabilities	217,510	14,507
Asset retirement obligation	27,902	31,420
Other	8,467	9,988
Total noncurrent liabilities	800,973	891,866
Commitments and contingent liabilities (Note 12)
Total capitalization and liabilities	$ 3,960,740	$ 3,928,507