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REGULATION (Tables) | 9 Months Ended
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Jun. 30, 2019
Regulated Operations [Abstract] |
Schedule of Regulator Liabilities | Regulatory assets and liabilities included on the Unaudited Condensed Consolidated Balance Sheets are comprised of the following:
(Thousands) | June 30, 2019 | September 30, 2018
Regulatory assets-current |  |
New Jersey Clean Energy Program | $ | 15,252 |  | $ | 14,052 |
Underrecovered gas costs | 9,949 |  | 4,137 |
Conservation Incentive Program | 2,065 |  | — |
Derivatives at fair value, net | 5,654 |  | 108 |
Total current regulatory assets | $ | 32,920 |  | $ | 18,297 |
Regulatory assets-noncurrent |  |
Environmental remediation costs |  |
Expended, net of recoveries | $ | 34,340 |  | $ | 33,017 |
Liability for future expenditures | 125,566 |  | 130,800 |
Deferred income taxes | 19,419 |  | 17,225 |
Derivatives at fair value, net | 750 |  | — |
SAVEGREEN | 7,684 |  | 8,636 |
Postemployment and other benefit costs | 132,605 |  | 136,716 |
Deferred storm damage costs | 9,229 |  | 10,858 |
Cost of removal | 49,929 |  | 22,339 |
Other noncurrent regulatory assets | 9,247 |  | 9,001 |
Total noncurrent regulatory assets | $ | 388,769 |  | $ | 368,592 |
Regulatory liabilities-current |  |
Conservation Incentive Program | $ | — |  | $ | 6,994 |
Derivatives at fair value, net | — |  | 1,191 |
Total current regulatory liabilities | $ | — |  | $ | 8,185 |
Regulatory liabilities-noncurrent |  |
Tax Act impact (1) | $ | 201,664 |  | $ | 205,410 |
Derivatives at fair value, net | — |  | 123 |
New Jersey Clean Energy Program | 207 |  | 1,902 |
Other noncurrent regulatory liabilities | 1,789 |  | 1,704 |
Total noncurrent regulatory liabilities | $ | 203,660 |  | $ | 209,139 |
(1) Reflects the re-measurement and subsequent amortization of NJNG's net deferred tax liabilities as a result of the change in federal tax rates enacted in the Tax Act.
Schedule of Regulatory Assets | Regulatory assets and liabilities included on the Unaudited Condensed Consolidated Balance Sheets are comprised of the following:
(Thousands) | June 30, 2019 | September 30, 2018
Regulatory assets-current |  |
New Jersey Clean Energy Program | $ | 15,252 |  | $ | 14,052 |
Underrecovered gas costs | 9,949 |  | 4,137 |
Conservation Incentive Program | 2,065 |  | — |
Derivatives at fair value, net | 5,654 |  | 108 |
Total current regulatory assets | $ | 32,920 |  | $ | 18,297 |
Regulatory assets-noncurrent |  |
Environmental remediation costs |  |
Expended, net of recoveries | $ | 34,340 |  | $ | 33,017 |
Liability for future expenditures | 125,566 |  | 130,800 |
Deferred income taxes | 19,419 |  | 17,225 |
Derivatives at fair value, net | 750 |  | — |
SAVEGREEN | 7,684 |  | 8,636 |
Postemployment and other benefit costs | 132,605 |  | 136,716 |
Deferred storm damage costs | 9,229 |  | 10,858 |
Cost of removal | 49,929 |  | 22,339 |
Other noncurrent regulatory assets | 9,247 |  | 9,001 |
Total noncurrent regulatory assets | $ | 388,769 |  | $ | 368,592 |
Regulatory liabilities-current |  |
Conservation Incentive Program | $ | — |  | $ | 6,994 |
Derivatives at fair value, net | — |  | 1,191 |
Total current regulatory liabilities | $ | — |  | $ | 8,185 |
Regulatory liabilities-noncurrent |  |
Tax Act impact (1) | $ | 201,664 |  | $ | 205,410 |
Derivatives at fair value, net | — |  | 123 |
New Jersey Clean Energy Program | 207 |  | 1,902 |
Other noncurrent regulatory liabilities | 1,789 |  | 1,704 |
Total noncurrent regulatory liabilities | $ | 203,660 |  | $ | 209,139 |
(1) Reflects the re-measurement and subsequent amortization of NJNG's net deferred tax liabilities as a result of the change in federal tax rates enacted in the Tax Act.

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