CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2018	Sep. 30, 2018
ASSETS
Property, plant and equipment	$ 12,948,229	$ 12,567,373
Less accumulated depreciation and amortization	2,250,000	2,196,226
Net property, plant and equipment	10,698,229	10,371,147
Current assets
Cash and cash equivalents	218,197	13,771
Accounts receivable, net	478,373	253,295
Gas stored underground	146,552	165,732
Other current assets	69,616	46,055
Total current assets	912,738	478,853
Goodwill	730,419	730,419
Deferred charges and other assets	274,403	294,018
Total assets	12,615,789	11,874,437
Shareholders’ equity
Common stock, no par value (stated at $0.005 per share); 200,000,000 shares authorized; issued and outstanding: December 31, 2018 — 116,892,959 shares; September 30, 2018 — 111,273,683 shares	584	556
Additional paid-in capital	3,476,476	2,974,926
Accumulated other comprehensive loss	(114,115)	(83,647)
Retained earnings	1,985,250	1,878,116
Shareholders’ equity	5,348,195	4,769,951
Long-term debt	3,084,779	2,493,665
Total capitalization	8,432,974	7,263,616
Current liabilities
Accounts payable and accrued liabilities	301,734	217,283
Other current liabilities	578,764	547,068
Short-term debt	0	575,780
Current maturities of long-term debt	575,000	575,000
Total current liabilities	1,455,498	1,915,131
Deferred income taxes	1,191,824	1,154,067
Regulatory excess deferred taxes (See Note 13)	717,758	739,670
Regulatory Cost Of Removal Liability Noncurrent	468,825	466,405
Pension and postretirement liabilities	176,582	177,520
Deferred credits and other liabilities	172,328	158,028
Total shareholders' equity and liabilities	$ 12,615,789	$ 11,874,437