Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands		Dec. 31, 2015	Sep. 30, 2015
ASSETS
Property, Plant and Equipment		$ 9,311,376	$ 9,261,323
Less - Accumulated Depreciation, Depletion and Amortization		4,428,593	3,929,428
Property, Plant and Equipment, Net, Total		4,882,783	5,331,895
Current Assets
Cash and Temporary Cash Investments		36,329	113,596
Hedging Collateral Deposits	[1]	9,551	11,124
Receivables – Net of Allowance for Uncollectible Accounts of $30,946 and $29,029, Respectively		211,112	105,004
Unbilled Revenue		40,178	20,746
Gas Stored Underground		28,811	34,252
Materials and Supplies - at average cost		32,389	30,414
Other Current Assets		66,145	60,665
Total Current Assets		424,515	375,801
Other Assets
Recoverable Future Taxes		172,205	168,214
Unamortized Debt Expense		2,085	2,218
Other Regulatory Assets		275,721	278,227
Deferred Charges		16,410	15,129
Other Investments		108,209	92,990
Goodwill		5,476	5,476
Prepaid Post-Retirement Benefit Costs		25,357	24,459
Fair Value of Derivative Financial Instruments		277,409	270,363
Other		162	167
Total Other Assets		883,034	857,243
Total Assets		6,190,332	6,564,939
Capitalization:
Common Stock, $1 Par Value Authorized - 200,000,000 Shares; Issued and Outstanding - 84,739,068 Shares and 84,594,383 Shares, Respectively		84,739	84,594
Paid in Capital		748,867	744,274
Earnings Reinvested in the Business		880,619	1,103,200
Accumulated Other Comprehensive Income		98,456	93,372
Total Comprehensive Shareholders’ Equity		1,812,681	2,025,440
Long-term Debt Noncurrent, Net of Unamortized Discount and Debt Issuance Costs		2,084,562	2,084,009
Total Capitalization		3,897,243	4,109,449
Current and Accrued Liabilities
Notes Payable to Banks and Commercial Paper		31,400	0
Current Portion of Long-Term Debt		0	0
Accounts Payable		126,917	180,388
Amounts Payable to Customers		45,076	56,778
Dividends Payable		33,472	33,415
Interest Payable on Long-Term Debt		30,285	36,200
Customer Advances		23,425	16,236
Customer Security Deposits		16,757	16,490
Other Accruals and Current Liabilities		95,830	96,557
Fair Value of Derivative Financial Instruments		7,969	10,076
Total Current and Accrued Liabilities		411,131	446,140
Deferred Credits
Deferred Income Taxes		999,399	1,137,962
Taxes Refundable to Customers		94,468	89,448
Unamortized Investment Tax Credit		644	731
Cost of Removal Regulatory Liability		184,784	184,907
Other Regulatory Liabilities		113,187	108,617
Pension and Other Post-Retirement Liabilities		205,431	202,807
Asset Retirement Obligations		158,108	156,805
Other Deferred Credits		125,937	128,073
Total Deferred Credits		1,881,958	2,009,350
Commitments and Contingencies		0	0
Total Capitalization and Liabilities		$ 6,190,332	$ 6,564,939

[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.