Consolidated Balance Sheets - USD ($) $ in Thousands		Sep. 30, 2016	Sep. 30, 2015
ASSETS
Property, Plant and Equipment		$ 9,539,581	$ 9,261,323
Less - Accumulated Depreciation, Depletion and Amortization		5,085,099	3,929,428
Property, Plant and Equipment, Net, Total		4,454,482	5,331,895
Current Assets
Cash and Temporary Cash Investments		129,972	113,596
Hedging Collateral Deposits	[1]	1,484	11,124
Receivables - Net of Allowance for Uncollectible Accounts of $21,109 and $29,029, Respectively		133,201	105,004
Unbilled Revenue		18,382	20,746
Gas Stored Underground		34,332	34,252
Materials and Supplies - at average cost		33,866	30,414
Unrecovered Purchased Gas Costs		2,440	0
Other Current Assets		59,354	60,665
Total Current Assets		413,031	375,801
Other Assets
Recoverable Future Taxes		177,261	168,214
Unamortized Debt Expense		1,688	2,218
Other Regulatory Assets		320,750	278,227
Deferred Charges		20,978	15,129
Other Investments		110,664	92,990
Goodwill		5,476	5,476
Prepaid Post-Retirement Benefit Costs		17,649	24,459
Fair Value of Derivative Financial Instruments		113,804	270,363
Other		604	167
Total Other Assets		768,874	857,243
Total Assets		5,636,387	6,564,939
Capitalization:
Common Stock, $1 Par Value Authorized - 200,000,000 Shares; Issued and Outstanding - 85,118,886 Shares and 84,594,383 Shares, Respectively		85,119	84,594
Paid In Capital		771,164	744,274
Earnings Reinvested in the Business		676,361	1,103,200
Accumulated Other Comprehensive Income (Loss)		(5,640)	93,372
Total Comprehensive Shareholders' Equity		1,527,004	2,025,440
Long-term Debt, Net of Unamortized Discount and Debt Issuance Costs		2,086,252	2,084,009
Total Capitalization		3,613,256	4,109,449
Current and Accrued Liabilities
Notes Payable to Banks and Commercial Paper		0	0
Current Portion of Long-Term Debt	[2]	0	0
Accounts Payable		108,056	180,388
Amounts Payable to Customers		19,537	56,778
Dividends Payable		34,473	33,415
Interest Payable on Long-Term Debt		34,900	36,200
Customer Advances		14,762	16,236
Customer Security Deposits		16,019	16,490
Other Accruals and Current Liabilities		74,430	96,557
Fair Value of Derivative Financial Instruments		1,560	10,076
Total Current and Accrued Liabilities		303,737	446,140
Deferred Credits
Deferred Income Taxes		823,795	1,137,962
Taxes Refundable to Customers		93,318	89,448
Unamortized Investment Tax Credit		383	731
Cost of Removal Regulatory Liability		193,424	184,907
Other Regulatory Liabilities		99,789	108,617
Pension and Other Post-Retirement Liabilities		277,113	202,807
Asset Retirement Obligations		112,330	156,805
Other Deferred Credits		119,242	128,073
Total Deferred Credits		1,719,394	2,009,350
Commitments and Contingencies (Note I)		0	0
Total Capitalization and Liabilities		$ 5,636,387	$ 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.

[2] None of the Company’s long-term debt at September 30, 2016 and 2015 will mature within the following twelve-month period.