CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2020	Sep. 30, 2019
ASSETS
Property, plant and equipment	$ 15,539,166	$ 13,758,899
Construction in progress	418,055	421,694
Total property, plant and equipment and construction in progress	15,957,221	14,180,593
Less accumulated depreciation and amortization	2,601,874	2,392,924
Net property, plant and equipment	13,355,347	11,787,669
Current assets
Cash and cash equivalents	20,808	24,550
Accounts receivable, less allowance for doubtful accounts	230,595	230,571
Gas stored underground	111,950	130,138
Other current assets	107,905	72,772
Total current assets	471,258	458,031
Goodwill	731,257	730,706
Deferred charges and other assets	801,170	391,213
Total assets	15,359,032	13,367,619
Shareholders’ equity
Common stock, no par value (stated at $.005 per share); 200,000,000 shares authorized; issued and outstanding	629	597
Additional paid-in capital	4,377,149	3,712,194
Accumulated other comprehensive loss	(57,589)	(114,583)
Retained earnings	2,471,014	2,152,015
Shareholders’ equity	6,791,203	5,750,223
Long-term debt	4,531,779	3,529,452
Total capitalization	11,322,982	9,279,675
Commitments and contingencies
Current liabilities
Accounts payable and accrued liabilities	235,775	265,024
Other current liabilities	546,461	479,501
Short-term debt	0	464,915
Current maturities of long-term debt	165	0
Total current liabilities	782,401	1,209,440
Deferred income taxes	1,456,569	1,300,015
Regulatory excess deferred taxes	697,764	705,101
Regulatory cost of removal obligation	457,188	473,172
Deferred credits and other liabilities	642,128	400,216
Total shareholders' equity and liabilities	$ 15,359,032	$ 13,367,619