CONSOLIDATED CONDENSED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014
Current assets:
Cash and cash equivalents	$ 251,636	$ 360,909
Accounts receivable, less reserve of $4,597 at December 31, 2014 and September 30, 2014	734,329	705,214
Inventories	110,773	106,241
Deferred income taxes	15,739	16,519
Prepaid expenses and other	90,118	81,277
Current assets of discontinued operations	7,397	7,206
Total current assets	1,209,992	1,277,366
Investments	165,581	236,644
Property, plant and equipment, net	5,400,016	5,188,544
Other assets	25,930	19,307
Total assets	6,801,519	6,721,861
Current liabilities:
Accounts payable	168,346	182,031
Accrued liabilities	234,932	282,278
Short-term debt	1,002
Long-term debt due within one year	40,000	40,000
Current liabilities of discontinued operations	3,176	3,217
Total current liabilities	447,456	507,526
Noncurrent liabilities:
Long-term debt	40,000	40,000
Deferred income taxes	1,317,264	1,215,259
Other	71,356	64,110
Noncurrent liabilities of discontinued operations	4,221	3,989
Total noncurrent liabilities	1,432,841	1,323,358
Shareholders' equity:
Common stock, $.10 par value, 160,000,000 shares authorized, 110,826,947 shares and 110,508,605 shares issued as of December 31, 2014 and September 30, 2014, respectively and 107,635,334 shares and 108,232,284 shares outstanding as of December 31, 2014 and September 30, 2014, respectively	11,083	11,051
Preferred stock, no par value, 1,000,000 shares authorized, no shares issued
Additional paid-in capital	395,325	383,972
Retained earnings	4,654,349	4,525,797
Accumulated other comprehensive income (loss)	41,078	83,126
Treasury stock, at cost	(180,613)	(112,969)
Total shareholders' equity	4,921,222	4,890,977
Total liabilities and shareholders' equity	$ 6,801,519	$ 6,721,861