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INVESTMENTS IN EQUITY INVESTEES (Tables)
9 Months Ended
Jun. 30, 2013
Equity Method Investments and Joint Ventures [Abstract]  
Schedule of Equity Method Investments
Equity Method Investments
(Thousands)
June 30,
2013
September 30,
2012
Steckman Ridge
$
130,715

$
132,931

Iroquois
23,915

22,864

Total
$
154,630

$
155,795