CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2020	Sep. 30, 2019
ASSETS
Property, plant and equipment	$ 15,443,224	$ 14,180,593
Less accumulated depreciation and amortization	2,562,374	2,392,924
Net property, plant and equipment	12,880,850	11,787,669
Current assets
Cash and cash equivalents	208,064	24,550
Accounts receivable, net	236,466	230,571
Gas stored underground	84,886	130,138
Other current assets	72,743	72,772
Total current assets	602,159	458,031
Goodwill	730,706	730,706
Deferred charges and other assets	657,267	391,213
Total assets	14,870,982	13,367,619
Shareholders’ equity
Common stock, no par value (stated at $0.005 per share); 200,000,000 shares authorized; issued and outstanding: June 30, 2020 — 123,351,267 shares; September 30, 2019 — 119,338,925 shares	617	597
Additional paid-in capital	4,100,130	3,712,194
Accumulated other comprehensive loss	(116,727)	(114,583)
Retained earnings	2,477,451	2,152,015
Shareholders’ equity	6,461,471	5,750,223
Long-term debt	4,531,341	3,529,452
Total capitalization	10,992,812	9,279,675
Current liabilities
Accounts payable and accrued liabilities	200,116	265,024
Other current liabilities	502,413	479,501
Short-term debt	0	464,915
Current maturities of long-term debt	157	0
Total current liabilities	702,686	1,209,440
Deferred income taxes	1,420,065	1,300,015
Regulatory excess deferred taxes	702,493	705,101
Regulatory cost of removal obligation	458,101	473,172
Deferred credits and other liabilities	594,825	400,216
Total shareholders' equity and liabilities	$ 14,870,982	$ 13,367,619