CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2017	Sep. 30, 2016
PROPERTY, PLANT AND EQUIPMENT
Utility plant, at cost	$ 2,199,762	$ 2,107,375
Construction work in progress	110,627	122,268
Solar and wind equipment, real estate properties and other, at cost	819,859	631,696
Construction work in progress	11,325	93,791
Total property, plant and equipment	3,141,573	2,955,130
Accumulated depreciation and amortization, utility plant	(481,213)	(467,702)
Accumulated depreciation and amortization, solar and wind equipment, real estate properties and other	(103,379)	(79,776)
Property, plant and equipment, net	2,556,981	2,407,652
CURRENT ASSETS
Cash and cash equivalents	62,159	37,546
Customer accounts receivable
Billed	167,128	142,658
Unbilled revenues	6,953	5,744
Allowance for doubtful accounts	(4,973)	(4,865)
Regulatory assets	57,039	54,286
Gas in storage, at average cost	201,682	206,251
Materials and supplies, at average cost	11,344	10,778
Prepaid and accrued taxes	55,919	34,179
Derivatives, at fair value	24,718	29,964
Restricted broker margin accounts	20,143	47,644
Asset held for sale	0	7,660
Other	35,438	35,419
Total current assets	637,550	607,264
NONCURRENT ASSETS
Investments in equity method investees	166,470	141,148
Regulatory assets	388,767	441,294
Derivatives, at fair value	5,915	5,227
Available for sale securities	59,887	55,789
Other	62,356	60,196
Total noncurrent assets	683,395	703,654
Total assets	3,877,926	3,718,570
CAPITALIZATION
Common stock, $2.50 par value; authorized 150,000,000 shares; outstanding June 30, 2017 — 86,465,874; September 30, 2016 — 86,086,355	222,249	221,654
Premium on common stock	219,305	215,580
Accumulated other comprehensive loss, net of tax	(10,901)	(15,155)
Treasury stock at cost and other; shares June 30, 2017 — 2,433,772; September 30, 2016 — 2,575,139	(74,145)	(81,044)
Retained earnings	928,093	825,556
Common stock equity	1,284,601	1,166,591
Long-term debt	897,703	1,055,038
Total capitalization	2,182,304	2,221,629
CURRENT LIABILITIES
Current maturities of long-term debt	186,292	61,452
Short-term debt	263,400	121,700
Gas purchases payable	151,380	139,452
Gas purchases payable to related parties	1,151	1,150
Accounts payable and other	88,604	107,184
Dividends payable	22,049	21,975
Accrued taxes	0	1,080
Regulatory liabilities	76	9,469
New Jersey clean energy program	15,363	14,232
Derivatives, at fair value	27,602	61,080
Customers' credit balances and deposits	19,961	32,834
Total current liabilities	775,878	571,608
NONCURRENT LIABILITIES
Deferred income taxes	523,384	473,847
Deferred investment tax credits	4,377	4,619
Deferred gain	27,924	28,519
Derivatives, at fair value	2,593	25,252
Manufactured gas plant remediation	161,016	172,000
Postemployment employee benefit liability	140,050	141,604
Regulatory liabilities	20,050	41,411
Asset retirement obligation	30,714	28,379
Other	9,636	9,702
Total noncurrent liabilities	919,744	925,333
Commitments and contingent liabilities (Note 12)
Total capitalization and liabilities	$ 3,877,926	$ 3,718,570