Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Jul. 31, 2016	Jul. 31, 2015
Cash Flows from Operating Activities:
Net income	$ 154,492	$ 151,120
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	110,504	104,510
Provision for doubtful accounts	4,542	4,559
Income from equity method investments	(28,025)	(29,908)
Distributions of earnings from equity method investments	16,828	22,401
Deferred income taxes, net	102,657	79,423
Changes in assets and liabilities:
Gas purchase derivatives, at fair value	(2,888)	3,758
Receivables	10,286	14,631
Inventories	26,286	20,274
Settlement of legal asset retirement obligations	(4,836)	(3,914)
Regulatory assets	(218,285)	14,192
Other assets	12,798	18,974
Accounts payable	(12,012)	(20,651)
Contributions to benefit plans	(10,392)	(10,814)
Accrued/deferred postretirement benefit costs	(2,078)	582
Gas supply derivatives, at fair value	182,900	0
Regulatory liabilities	(13,377)	5,180
Other liabilities	(17,288)	(1,134)
Net cash provided by operating activities	312,112	373,183
Cash Flows from Investing Activities:
Utility capital expenditures	(379,705)	(308,559)
Allowance for borrowed funds used during construction	(9,917)	(7,935)
Contributions to equity method investments	(30,642)	(20,063)
Distributions of capital from equity method investments	9,994	1,285
Proceeds from sale of property	684	372
Investments in marketable securities	(418)	(845)
Other	7,166	5,834
Net cash used in investing activities	(402,838)	(329,911)
Cash Flows from Financing Activities:
Net (repayments) borrowings – commercial paper	(100,000)	15,000
Proceeds from issuance of long-term debt	299,634	0
Repayment of long-term debt	(40,000)	0
Expenses related to issuance of debt	(3,952)	(1)
Issuance of common stock through dividend reinvestment and employee stock plans	16,794	20,358
Dividends paid	(81,919)	(77,249)
Other	(88)	(359)
Net cash provided by (used in) financing activities	90,469	(42,251)
Net (Decrease) Increase in Cash and Cash Equivalents	(257)	1,021
Cash and Cash Equivalents at Beginning of Period	13,744	9,643
Cash and Cash Equivalents at End of Period	13,487	10,664
Cash Paid During the Period for:
Interest	64,422	58,147
Income Taxes:
Income taxes paid	3,436	2,984
Income taxes refunded	173	530
Income taxes, net	3,263	2,454
Noncash Investing and Financing Activities:
Accrued capital expenditures	$ 51,426	$ 48,742