Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands		Mar. 31, 2018	Sep. 30, 2017
ASSETS
Property, Plant and Equipment		$ 10,126,931	$ 9,945,560
Less - Accumulated Depreciation, Depletion and Amortization		5,344,134	5,271,486
Property, Plant and Equipment, Net, Total		4,782,797	4,674,074
Current Assets
Cash and Temporary Cash Investments		227,994	555,530
Hedging Collateral Deposits	[1]	3,657	1,741
Receivables – Net of Allowance for Uncollectible Accounts of $28,592 and $22,526, Respectively		198,922	112,383
Unbilled Revenue		60,059	22,883
Gas Stored Underground		6,842	35,689
Materials and Supplies - at average cost		34,769	33,926
Unrecovered Purchased Gas Costs		426	4,623
Other Current Assets		60,324	51,505
Total Current Assets		592,993	818,280
Other Assets
Recoverable Future Taxes		115,514	181,363
Unamortized Debt Expense		7,861	1,159
Other Regulatory Assets		171,902	174,433
Deferred Charges		36,835	30,047
Other Investments		123,039	125,265
Goodwill		5,476	5,476
Prepaid Post-Retirement Benefit Costs		59,586	56,370
Fair Value of Derivative Financial Instruments		18,144	36,111
Other		426	742
Total Other Assets		538,783	610,966
Total Assets		5,914,573	6,103,320
Capitalization:
Common Stock, $1 Par Value Authorized - 200,000,000 Shares; Issued and Outstanding - 85,881,897 Shares and 85,543,125 Shares, Respectively		85,882	85,543
Paid in Capital		810,126	796,646
Earnings Reinvested in the Business		1,070,939	851,669
Accumulated Other Comprehensive Loss		(47,760)	(30,123)
Total Comprehensive Shareholders’ Equity		1,919,187	1,703,735
Long-Term Debt, Net of Current Portion and Unamortized Discount and Debt Issuance Costs		2,085,012	2,083,681
Total Capitalization		4,004,199	3,787,416
Current and Accrued Liabilities
Notes Payable to Banks and Commercial Paper		0	0
Current Portion of Long-Term Debt		0	300,000
Accounts Payable		127,585	126,443
Amounts Payable to Customers		12,083	0
Dividends Payable		35,641	35,500
Interest Payable on Long-Term Debt		26,435	35,031
Customer Advances		154	15,701
Customer Security Deposits		18,973	20,372
Other Accruals and Current Liabilities		147,549	111,889
Fair Value of Derivative Financial Instruments		11,475	1,103
Total Current and Accrued Liabilities		379,895	646,039
Deferred Credits
Deferred Income Taxes		482,682	891,287
Taxes Refundable to Customers		365,091	95,739
Cost of Removal Regulatory Liability		207,711	204,630
Other Regulatory Liabilities		124,868	113,716
Pension and Other Post-Retirement Liabilities		133,852	149,079
Asset Retirement Obligations		106,481	106,395
Other Deferred Credits		109,794	109,019
Total Deferred Credits		1,530,479	1,669,865
Commitments and Contingencies (Note 6)		0	0
Total Capitalization and Liabilities		$ 5,914,573	$ 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.