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ASSET RETIREMENT OBLIGATIONS (ARO) (Tables)
12 Months Ended
Sep. 30, 2013
Asset Retirement Obligation Disclosure [Abstract]  
Schedule of Change in Asset Retirement Obligation [Table Text Block]
The following is an analysis of the change in the ARO liability for the fiscal year ended September 30:
(Thousands)
2013
 
2012
Balance at October 1
$
27,983

 
$
27,026

Accretion
1,892

 
1,774

Additions
533

 
380

Retirements
(1,697
)
 
(1,197
)
Balance at period end
$
28,711

 
$
27,983

Schedule of Future Accretion [Table Text Block]
Accretion for the next five years is estimated to be as follows:
(Thousands)
 
 
 
Fiscal Year Ended September 30,
Estimated Accretion
2014
 
$
1,975

 
2015
 
2,037

 
2016
 
2,099

 
2017
 
2,152

 
2018
 
2,204

 
Total
 
$
10,467