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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
3 Months Ended
Dec. 31, 2012
Accounting Policies [Abstract]  
Schedule of Utility Inventory
The following table summarizes gas in storage, at average cost by company as of:
 
December 31,
2012
September 30,
2012
($ in thousands)
Gas in Storage
 
Bcf
Gas in Storage
 
Bcf
NJNG
 
$
123,624

19.8

 
$
145,379

22.2

NJRES
 
192,321

57.6

 
119,814

45.5

Total
 
$
315,945

77.4

 
$
265,193

67.7