CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2022	Sep. 30, 2021
ASSETS
Property, plant and equipment	$ 19,502,000	$ 17,885,098
Less accumulated depreciation and amortization	2,945,397	2,821,128
Net property, plant and equipment	16,556,603	15,063,970
Current assets
Cash and cash equivalents	328,075	116,723
Accounts receivable, net (See Note 5)	375,257	342,967
Gas stored underground	223,993	178,116
Other current assets (See Note 8)	2,354,526	2,200,909
Total current assets	3,281,851	2,838,715
Goodwill	731,257	731,257
Deferred charges and other assets (See Note 8)	1,085,773	974,720
Total assets	21,655,484	19,608,662
Shareholders’ equity
Common stock, no par value (stated at $0.005 per share); 200,000,000 shares authorized; issued and outstanding: June 30, 2022 — 139,888,756 shares; September 30, 2021 — 132,419,754 shares	699	662
Additional paid-in capital	5,726,090	5,023,751
Accumulated other comprehensive income	305,210	69,803
Retained earnings	3,236,172	2,812,673
Shareholders’ equity	9,268,171	7,906,889
Long-term debt	5,759,164	4,930,205
Total capitalization	15,027,335	12,837,094
Current liabilities
Accounts payable and accrued liabilities	397,058	423,222
Other current liabilities	660,629	686,681
Current maturities of long-term debt	2,201,430	2,400,452
Total current liabilities	3,259,117	3,510,355
Deferred income taxes	1,936,658	1,705,809
Regulatory excess deferred taxes	425,960	549,227
Regulatory cost of removal obligation	479,962	468,688
Deferred credits and other liabilities	526,452	537,489
Total capitalization and liabilities	$ 21,655,484	$ 19,608,662