CONSOLIDATED BALANCE SHEETS - USD ($)		Sep. 30, 2017	Sep. 30, 2016
ASSETS
Property, plant and equipment		$ 11,001,910,000	$ 9,958,627,000
Construction in progress		299,394,000	183,879,000
Total property, plant and equipment and construction in progress		11,301,304,000	10,142,506,000
Less accumulated depreciation and amortization		2,042,122,000	1,873,900,000
Net property, plant and equipment	[1]	9,259,182,000	8,268,606,000
Current assets
Cash and cash equivalents		26,409,000	47,534,000
Accounts receivable, less allowance for doubtful accounts of $10,865 in 2017 and $11,056 in 2016		222,263,000	215,880,000
Gas stored underground		184,653,000	179,070,000
Current assets of disposal group classified as held for sale		0	151,117,000
Other current assets		106,321,000	88,085,000
Total current assets		539,646,000	681,686,000
Goodwill		730,132,000	726,962,000	[2]
Noncurrent assets of disposal group classified as held for sale		0	28,616,000
Deferred charges and other assets		220,636,000	305,019,000
Total assets		10,749,596,000	10,010,889,000
Shareholders' equity
Common stock, no par value (stated at $.005 per share); 200,000,000 shares authorized; issued and outstanding: 2017 — 106,104,634 shares, 2016 — 103,930,560 shares		531,000	520,000
Additional paid-in capital		2,536,365,000	2,388,027,000
Accumulated other comprehensive loss		(105,254,000)	(188,022,000)
Retained earnings		1,467,024,000	1,262,534,000
Shareholders' equity		3,898,666,000	3,463,059,000
Long-term debt		3,067,045,000	2,188,779,000
Total capitalization		6,965,711,000	5,651,838,000
Current liabilities
Accounts payable and accrued liabilities		233,050,000	196,485,000
Current liabilities of disposal group classified as held for sale		0	72,900,000
Other current liabilities		332,648,000	439,085,000
Short-term debt		447,745,000	829,811,000
Current maturities of long-term debt		0	250,000,000
Total current liabilities		1,013,443,000	1,788,281,000
Deferred income taxes		1,878,699,000	1,603,056,000
Regulatory cost of removal obligation		485,420,000	424,281,000
Pension and postretirement liabilities		230,588,000	297,743,000
Noncurrent liabilities of disposal group held for sale		0	316,000
Deferred credits and other liabilities		175,735,000	245,374,000
Total shareholders' equity and liabilities		$ 10,749,596,000	$ 10,010,889,000

[1] Net property, plant and equipment includes plant acquisition adjustments of $(64.1) million and $(59.8) million at September 30, 2017 and 2016.

[2] Our discontinued natural gas marketing segment had $16.4 million of goodwill at September 30, 2016. Of this amount, $13.7 million was written off in connection with the sale and the remaining $2.7 million was reallocated to the distribution segment.