REGULATION (Tables)

6 Months Ended

Mar. 31, 2013

Regulated Operations [Abstract]

Schedule of Regulatory Assets and Liabilities

Regulatory assets and liabilities included on the Unaudited Condensed Consolidated Balance Sheets are comprised of the following:

(Thousands)	March 31, 2013		September 30, 2012
Regulatory assets-current
Conservation Incentive Program	$	18,383	$	25,681
Underrecovered gas costs	7,595		7,053
Total current	$	25,978	$	32,734
Regulatory assets-noncurrent
Environmental remediation costs
Expended, net of recoveries	$	48,830	$	59,745
Liability for future expenditures	182,000		182,000
Deferred income taxes	11,405		11,405
Energy Efficiency Program	31,712		26,025
New Jersey Clean Energy Program (NJCEP)	7,464		5,619
Postemployment and other benefit costs	137,700		142,495
Deferred Superstorm Sandy costs	14,666		—
Other	8,431		13,974
Total noncurrent	$	442,208	$	441,263
Regulatory liability-current
Derivatives, net	$	—	$	1,169
Total current	$	—	$	1,169
Regulatory liabilities-noncurrent
Cost of removal obligation	$	64,346	$	65,994
Derivatives, net	13,189		1,000
Other	1,490		83
Total noncurrent	$	79,025	$	67,077