CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2019	Sep. 30, 2019
ASSETS
Property, plant and equipment	$ 14,691,719	$ 14,180,593
Less accumulated depreciation and amortization	2,441,296	2,392,924
Net property, plant and equipment	12,250,423	11,787,669
Current assets
Cash and cash equivalents	189,272	24,550
Accounts receivable, net	435,616	230,571
Gas stored underground	115,259	130,138
Other current assets	71,982	72,772
Total current assets	812,129	458,031
Goodwill	730,706	730,706
Deferred charges and other assets	594,867	391,213
Total assets	14,388,125	13,367,619
Shareholders’ equity
Common stock, no par value (stated at $0.005 per share); 200,000,000 shares authorized; issued and outstanding: December 31, 2019 — 122,262,403 shares; September 30, 2019 — 119,338,925 shares	611	597
Additional paid-in capital	3,979,564	3,712,194
Accumulated other comprehensive loss	(113,531)	(114,583)
Retained earnings	2,261,131	2,152,015
Shareholders’ equity	6,127,775	5,750,223
Long-term debt	4,324,285	3,529,452
Total capitalization	10,452,060	9,279,675
Current liabilities
Accounts payable and accrued liabilities	308,113	265,024
Other current liabilities	537,009	479,501
Short-term debt	0	464,915
Current maturities of long-term debt	50	0
Total current liabilities	845,172	1,209,440
Deferred income taxes	1,352,333	1,300,015
Regulatory excess deferred taxes	699,375	705,101
Regulatory cost of removal obligation	451,178	473,172
Deferred credits and other liabilities	588,007	400,216
Total shareholders' equity and liabilities	$ 14,388,125	$ 13,367,619