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CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands | Dec. 31, 2021 | Sep. 30, 2021
--- | --- | ---
PROPERTY, PLANT AND EQUIPMENT |  |
Utility plant, at cost | $ 3,397,776 | $ 3,324,611
Construction work in progress | 158,052 | 182,196
Nonutility plant and equipment, at cost | 1,136,718 | 1,124,896
Construction work in progress | 452,685 | 365,346
Total property, plant and equipment | 5,145,231 | 4,997,049
Accumulated depreciation and amortization, utility plant | (622,934) | (611,827)
Accumulated depreciation and amortization, nonutility plant and equipment | (179,194) | (171,709)
Property, plant and equipment, net | 4,343,103 | 4,213,513
CURRENT ASSETS |  |
Cash and cash equivalents | 1,259 | 4,749
Customer accounts receivable |  |
Billed | 266,815 | 212,838
Unbilled revenues | 72,949 | 10,351
Allowance for doubtful accounts | (24,767) | (24,652)
Regulatory assets | 38,653 | 30,118
Natural gas in storage, at average cost | 242,692 | 193,606
Materials and supplies, at average cost | 19,341 | 19,561
Prepaid expenses | 15,117 | 8,166
Prepaid and accrued taxes | 23,246 | 51,211
Derivatives, at fair value | 39,783 | 35,251
Restricted broker margin accounts | 42,716 | 72,840
Other current assets | 22,518 | 20,235
Total current assets | 760,322 | 634,274
NONCURRENT ASSETS |  |
Investments in equity method investees | 114,249 | 114,529
Regulatory assets | 528,074 | 522,099
Operating lease assets | 173,617 | 173,928
Derivatives, at fair value | 1,978 | 3,403
Intangible assets, net | 4,337 | 5,029
Software costs | 5,464 | 5,582
Other noncurrent assets | 50,013 | 49,921
Total noncurrent assets | 877,732 | 874,491
Total assets | 5,981,157 | 5,722,278
CAPITALIZATION |  |
Common stock, $2.50 par value; authorized 150,000,000 shares; outstanding December 31, 2021 — 95,961,710; September 30, 2021 — 95,709,662 | 241,274 | 240,644
Premium on common stock | 513,134 | 502,584
Accumulated other comprehensive loss, net of tax | (33,498) | (34,528)
Treasury stock at cost and other; shares December 31, 2021 — 762,344; September 30, 2021 — 762,313 | (15,067) | (12,448)
Retained earnings | 1,011,135 | 934,610
Common stock equity | 1,716,978 | 1,630,862
Long-term debt | 2,274,176 | 2,162,164
Total capitalization | 3,991,154 | 3,793,026
CURRENT LIABILITIES |  |
Current maturities of long-term debt | 74,461 | 72,840
Short-term debt | 487,950 | 377,300
Natural gas purchases payable | 149,945 | 168,697
Natural gas purchases payable to related parties | 851 | 861
Deferred revenue | 52,852 | 1,745
Accounts payable and other | 168,197 | 223,497
Dividends payable | 34,786 | 34,768
Accrued taxes | 6,596 | 3,356
Regulatory liabilities | 18,999 | 28,007
New Jersey Clean Energy Program | 14,416 | 16,308
Derivatives, at fair value | 30,049 | 87,145
Operating lease liabilities | 4,531 | 4,300
Restricted broker margin accounts | 15,475 | 0
Customers' credit balances and deposits | 38,666 | 32,586
Total current liabilities | 1,097,774 | 1,051,410
NONCURRENT LIABILITIES |  |
Deferred income taxes | 178,654 | 163,530
Deferred investment tax credits | 2,930 | 3,010
Deferred revenue | 14,621 | 847
Derivatives, at fair value | 15,261 | 13,497
Manufactured gas plant remediation | 126,872 | 135,012
Postemployment employee benefit liability | 167,335 | 169,267
Regulatory liabilities | 190,714 | 193,051
Operating lease liabilities | 141,356 | 141,363
Asset retirement obligation | 46,541 | 46,306
Other noncurrent liabilities | 7,945 | 11,959
Total noncurrent liabilities | 892,229 | 877,842
Commitments and contingent liabilities (Note 13) |  |
Total capitalization and liabilities | $ 5,981,157 | $ 5,722,278

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