CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
OPERATING ACTIVITIES:
Net income	$ 16,007	$ 448,023
Adjustment for loss from discontinued operations	3,872	41
Income (loss) from continuing operations	19,879	448,064
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	422,336	433,445
Asset impairment charge	6,250
Amortization of debt discount and debt issuance costs	879	485
Recovery of bad debt	(3,067)
Stock-based compensation	19,661	19,120
Pension settlement charge	3,343	1,200
Other	255
Income from asset sales	(7,820)	(8,819)
Deferred income tax expense	77,886	145,986
Change in assets and liabilities:
Accounts receivable	97,698	229,837
Inventories	(344)	(22,026)
Prepaid expenses and other	(6,537)	(30,362)
Accounts payable	(13,643)	(41,134)
Accrued liabilities	14,632	(64,975)
Deferred income taxes	2,673	317
Other noncurrent liabilities	(18,741)	40,459
Net cash provided by operating activities from continuing operations	615,340	1,151,597
Net cash provided by (used in) operating activities from discontinued operations	70	(41)
Net cash provided by operating activities	615,410	1,151,556
INVESTING ACTIVITIES:
Capital expenditures	(219,549)	(971,602)
Purchase of short-term investments	(36,958)
Proceeds from sales of short-term investments	32,681
Proceeds from asset sales	12,804	17,757
Net cash used in investing activities	(211,022)	(953,845)
FINANCING ACTIVITIES:
Proceeds from senior notes, net of discount		497,125
Debt issuance costs	(32)	(5,202)
Net increase in bank overdraft		10,824
Proceeds on short-term debt		1,002
Payments on short-term debt		(1,002)
Dividends paid	(224,040)	(223,827)
Repurchase of common stock		(59,654)
Exercise of stock options, net of tax withholding	483	(609)
Tax withholdings related to net share settlements of restricted stock	(3,912)	(5,104)
Excess tax benefit from stock-based compensation	761	2,969
Net cash provided by (used in) financing activities	(226,740)	216,522
Net increase in cash and cash equivalents	177,648	414,233
Cash and cash equivalents, beginning of period	729,384	360,307
Cash and cash equivalents, end of period	$ 907,032	$ 774,540