Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands		Jun. 30, 2017	Sep. 30, 2016
ASSETS
Property, Plant and Equipment		$ 9,816,295	$ 9,539,581
Less - Accumulated Depreciation, Depletion and Amortization		5,232,771	5,085,099
Property, Plant and Equipment, Net, Total		4,583,524	4,454,482
Current Assets
Cash and Temporary Cash Investments		285,325	129,972
Hedging Collateral Deposits	[1]	2,142	1,484
Receivables – Net of Allowance for Uncollectible Accounts of $27,545 and $21,109, Respectively		127,876	133,201
Unbilled Revenue		19,729	18,382
Gas Stored Underground		17,793	34,332
Materials and Supplies - at average cost		34,706	33,866
Unrecovered Purchased Gas Costs		3,757	2,440
Other Current Assets		50,852	59,354
Total Current Assets		542,180	413,031
Other Assets
Recoverable Future Taxes		182,469	177,261
Unamortized Debt Expense		1,292	1,688
Other Regulatory Assets		315,126	320,750
Deferred Charges		28,821	20,978
Other Investments		126,485	110,664
Goodwill		5,476	5,476
Prepaid Post-Retirement Benefit Costs		18,619	17,649
Fair Value of Derivative Financial Instruments		63,036	113,804
Other		479	604
Total Other Assets		741,803	768,874
Total Assets		5,867,507	5,636,387
Capitalization:
Common Stock, $1 Par Value Authorized - 200,000,000 Shares; Issued and Outstanding - 85,467,963 Shares and 85,118,886 Shares, Respectively		85,468	85,119
Paid in Capital		790,291	771,164
Earnings Reinvested in the Business		841,593	676,361
Accumulated Other Comprehensive Loss		(33,304)	(5,640)
Total Comprehensive Shareholders’ Equity		1,684,048	1,527,004
Long-Term Debt, Net of Unamortized Discount and Debt Issuance Costs		1,787,954	2,086,252
Total Capitalization		3,472,002	3,613,256
Current and Accrued Liabilities
Notes Payable to Banks and Commercial Paper		0	0
Current Portion of Long-Term Debt		300,000	0
Accounts Payable		98,842	108,056
Amounts Payable to Customers		13,070	19,537
Dividends Payable		35,469	34,473
Interest Payable on Long-Term Debt		28,985	34,900
Customer Advances		224	14,762
Customer Security Deposits		17,522	16,019
Other Accruals and Current Liabilities		107,101	74,430
Fair Value of Derivative Financial Instruments		922	1,560
Total Current and Accrued Liabilities		602,135	303,737
Deferred Credits
Deferred Income Taxes		881,547	823,795
Taxes Refundable to Customers		93,321	93,318
Cost of Removal Regulatory Liability		199,739	193,424
Other Regulatory Liabilities		88,647	99,789
Pension and Other Post-Retirement Liabilities		299,326	277,113
Asset Retirement Obligations		115,354	112,330
Other Deferred Credits		115,436	119,625
Total Deferred Credits		1,793,370	1,719,394
Commitments and Contingencies (Note 6)		0	0
Total Capitalization and Liabilities		$ 5,867,507	$ 5,636,387

[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.