Condensed Consolidated Statements of Comprehensive Income (Unaudited) (USD $)	3 Months Ended
	Jan. 31, 2014	Jan. 31, 2013
Condensed Consolidated Statements of Comprehensive Income (Unaudited)
Operating Revenues	$ 657,733,000	$ 515,875,000
Cost of Gas	396,221,000	284,252,000
Margin	261,512,000	231,623,000
Operating Expenses
Operations and maintenance	60,639,000	55,882,000
Depreciation	29,643,000	26,701,000
General taxes	9,109,000	9,528,000
Utility income taxes	59,802,000	53,299,000
Total operating expenses	159,193,000	145,410,000
Operating Income	102,319,000	86,213,000
Other Income (Expense)
Income from equity method investments	9,941,000	7,155,000
Non-operating income	250,000	448,000
Non-operating expense	(608,000)	(762,000)
Income taxes	(3,728,000)	(2,674,000)
Total other income (expense)	5,855,000	4,167,000
Utility Interest Charges
Interest on long-term debt	15,593,000	12,675,000
Allowance for borrowed funds used during construction	(5,952,000)	(8,313,000)
Other	961,000	95,000
Total utility interest charges	10,602,000	4,457,000
Net Income	97,572,000	85,923,000
Other Comprehensive Income (Loss), net of tax
Unrealized gain (loss) from hedging activities of equity method investments, net of tax	174,000	(179,000)
Reclassification adjustment of realized gain from hedging activities of equity method investments included in net income, net of tax	137,000	21,000
Total other comprehensive income (loss)	311,000	(158,000)
Comprehensive Income	$ 97,883,000	$ 85,765,000
Average Shares of Common Stock
Basic	76,988,000	72,356,000
Diluted	77,327,000	72,725,000
Earnings Per Share of Common Stock
Basic	$ 1.27	$ 1.19
Diluted	$ 1.26	$ 1.18