CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2022	Sep. 30, 2021
ASSETS
Property, plant and equipment	$ 19,019,069	$ 17,885,098
Less accumulated depreciation and amortization	2,934,096	2,821,128
Net property, plant and equipment	16,084,973	15,063,970
Current assets
Cash and cash equivalents	582,495	116,723
Accounts receivable, net (See Note 5)	565,184	342,967
Gas stored underground	96,295	178,116
Other current assets (See Note 8)	2,285,022	2,200,909
Total current assets	3,528,996	2,838,715
Goodwill	731,257	731,257
Deferred charges and other assets (See Note 8)	925,917	974,720
Total assets	21,271,143	19,608,662
Shareholders’ equity
Common stock, no par value (stated at $0.005 per share); 200,000,000 shares authorized; issued and outstanding: March 31, 2022 — 139,012,029 shares; September 30, 2021 — 132,419,754 shares	695	662
Additional paid-in capital	5,634,020	5,023,751
Accumulated other comprehensive income	145,579	69,803
Retained earnings	3,202,937	2,812,673
Shareholders’ equity	8,983,231	7,906,889
Long-term debt	5,757,595	4,930,205
Total capitalization	14,740,826	12,837,094
Current liabilities
Accounts payable and accrued liabilities	354,003	423,222
Other current liabilities	653,009	686,681
Current maturities of long-term debt	2,201,404	2,400,452
Total current liabilities	3,208,416	3,510,355
Deferred income taxes	1,848,626	1,705,809
Regulatory excess deferred taxes	470,918	549,227
Regulatory cost of removal obligation	476,026	468,688
Deferred credits and other liabilities	526,331	537,489
Total capitalization and liabilities	$ 21,271,143	$ 19,608,662