Condensed Consolidated Balance Sheets (USD $) In Thousands	Jun. 30, 2011	Sep. 30, 2010
CURRENT ASSETS:
Cash and cash equivalents	$ 113,075	$ 180,523
Accounts receivable	106,879	96,463
Income tax receivable	2,835	16,052
Inventories of materials and supplies	56,404	52,749
Prepaid expenses and deferred costs	1,998	14,207
Total Current Assets	281,191	359,994
NET PROPERTY AND EQUIPMENT	1,813,674	1,343,961
LONG TERM ASSETS:
Other receivables (See Note 9)	15,799	15,799
Deferred costs and other assets	16,032	4,686
Total Long Term Assets	31,831	20,485
Total Assets	2,126,696	1,724,440
LIABILITIES AND SHAREHOLDERS' EQUITY
Accounts payable	37,863	37,192
Accrued liabilities	26,684	25,368
Income tax payable	6,117	26,367
Deferred credits	33,834	4,533
Total Current Liabilities	104,498	93,460
LONG-TERM DEBT	400,000	230,000
LONG TERM LIABILITIES:
Deferred income taxes	10,028	10,845
Deferred credits	8,857	2,919
Other (See Note 6)	24,629	17,082
Total Long Term Liabilities	43,514	30,846
COMMITMENTS AND CONTINGENCIES (SEE NOTE 9)
SHAREHOLDERS' EQUITY:
Preferred stock, no par value; 1,000 shares authorized, none outstanding
Common stock, $1 par value, 90,000 shares authorized with 64,781 and 64,443 issued and outstanding at June 30, 2011 and September 30, 2010, respectively	64,846	64,443
Paid-in capital	142,495	133,095
Retained earnings	1,371,343	1,172,596
Total Equity	1,578,684	1,370,134
Total Liabilities and Equity	$ 2,126,696	$ 1,724,440