Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands		Jun. 30, 2018	Sep. 30, 2017
ASSETS
Property, Plant and Equipment		$ 10,254,976	$ 9,945,560
Less - Accumulated Depreciation, Depletion and Amortization		5,411,746	5,271,486
Property, Plant and Equipment, Net, Total		4,843,230	4,674,074
Current Assets
Cash and Temporary Cash Investments		313,307	555,530
Hedging Collateral Deposits	[1]	2,283	1,741
Receivables – Net of Allowance for Uncollectible Accounts of $26,711 and $22,526, Respectively		151,005	112,383
Unbilled Revenue		18,930	22,883
Gas Stored Underground		16,090	35,689
Materials and Supplies - at average cost		34,693	33,926
Unrecovered Purchased Gas Costs		0	4,623
Other Current Assets		52,690	51,505
Total Current Assets		588,998	818,280
Other Assets
Recoverable Future Taxes		115,688	181,363
Unamortized Debt Expense		7,587	1,159
Other Regulatory Assets		171,792	174,433
Deferred Charges		37,349	30,047
Other Investments		130,744	125,265
Goodwill		5,476	5,476
Prepaid Post-Retirement Benefit Costs		61,371	56,370
Fair Value of Derivative Financial Instruments		11,760	36,111
Other		108	742
Total Other Assets		541,875	610,966
Total Assets		5,974,103	6,103,320
Capitalization:
Common Stock, $1 Par Value Authorized - 200,000,000 Shares; Issued and Outstanding - 85,943,875 Shares and 85,543,125 Shares, Respectively		85,944	85,543
Paid in Capital		816,395	796,646
Earnings Reinvested in the Business		1,097,438	851,669
Accumulated Other Comprehensive Loss		(72,396)	(30,123)
Total Comprehensive Shareholders’ Equity		1,927,381	1,703,735
Long-Term Debt, Net of Current Portion and Unamortized Discount and Debt Issuance Costs		1,835,582	2,083,681
Total Capitalization		3,762,963	3,787,416
Current and Accrued Liabilities
Notes Payable to Banks and Commercial Paper		0	0
Current Portion of Long-Term Debt		250,000	300,000
Accounts Payable		111,812	126,443
Amounts Payable to Customers		16,833	0
Dividends Payable		36,526	35,500
Interest Payable on Long-Term Debt		28,357	35,031
Customer Advances		197	15,701
Customer Security Deposits		18,468	20,372
Other Accruals and Current Liabilities		161,252	111,889
Fair Value of Derivative Financial Instruments		38,012	1,103
Total Current and Accrued Liabilities		661,457	646,039
Deferred Credits
Deferred Income Taxes		491,520	891,287
Taxes Refundable to Customers		366,183	95,739
Cost of Removal Regulatory Liability		213,560	204,630
Other Regulatory Liabilities		128,184	113,716
Pension and Other Post-Retirement Liabilities		138,275	149,079
Asset Retirement Obligations		101,833	106,395
Other Deferred Credits		110,128	109,019
Total Deferred Credits		1,549,683	1,669,865
Commitments and Contingencies (Note 6)		0	0
Total Capitalization and Liabilities		$ 5,974,103	$ 6,103,320

[1] Netting Adjustments represent the impact of legally-enforceable master netting arrangements that allow the Company to net gain and loss positions held with the same counterparties. The net asset or net liability for each counterparty is recorded as an asset or liability on the Company’s balance sheet.