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REGULATION (Tables) | 12 Months Ended
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Sep. 30, 2014
Regulated Operations [Abstract] |
Schedule of Regulatory Assets and Liabilities | Regulatory assets and liabilities included on the Consolidated Balance Sheets as of September 30, are comprised of the following:
(Thousands) | 2014 | 2013
Regulatory assets-current |  |
Underrecovered gas costs | $ | 12,577 |  | $ | 953 |
Conservation Incentive Program | — |  | 18,887 |
New Jersey Clean Energy Program | 14,285 |  | 14,532 |
Total current regulatory assets | $ | 26,862 |  | $ | 34,372 |
Regulatory assets-noncurrent |  |
Environmental remediation costs |  |
Expended, net of recoveries | $ | 30,916 |  | $ | 46,968 |
Liability for future expenditures | 177,000 |  | 183,600 |
Deferred income taxes | 9,968 |  | 10,718 |
Derivatives at fair value, net | — |  | 19 |
SAVEGREEN | 29,180 |  | 30,004 |
Postemployment and other benefit costs | 108,507 |  | 101,415 |
Deferred Superstorm Sandy costs | 15,207 |  | 14,822 |
Other noncurrent regulatory assets | 6,797 |  | 14,656 |
Total noncurrent regulatory assets | $ | 377,575 |  | $ | 402,202 |
Regulatory liability-current |  |
Conservation Incentive Program | $ | 5,752 |  | $ | — |
Derivatives at fair value, net | 320 |  | 1,456 |
Total current regulatory liabilities | $ | 6,072 |  | $ | 1,456 |
Regulatory liabilities-noncurrent |  |
Cost of removal obligation | $ | 61,163 |  | $ | 79,315 |
Derivatives at fair value, net | 57 |  | — |
Other noncurrent regulatory liabilities | 106 |  | 332 |
Total noncurrent regulatory liabilities | $ | 61,326 |  | $ | 79,647 |

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