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INCOME TAXES, DEFERRED TAX ASSETS AND LIABILITIES (Details) (USD $) | Sep. 30, 2014 | Sep. 30, 2013
--- | --- | ---
Deferred tax assets |  |  |
Investment tax credits | $ 10,341,000 | [1] | $ 43,033,000
Deferred service contract revenue | 3,299,000 |  | 3,231,000
Incentive compensation | 14,632,000 |  | 6,798,000
Fair value of derivatives | 14,350,000 |  | 0
State net operating losses | 8,962,000 |  | 6,118,000
Conservation incentive plan | 2,312,000 |  | 0
Other | 10,078,000 |  | 5,718,000
Total deferred tax assets | 63,974,000 |  | 64,898,000
Deferred tax liabilities |  |  |
Property related items | (371,017,000) |  | (329,921,000)
Remediation costs | (12,429,000) |  | (18,881,000)
Equity investments | (35,474,000) |  | (33,368,000)
Post employment benefits | (10,268,000) |  | (17,455,000)
Fair value of derivatives | 0 |  | (6,258,000)
Conservation incentive plan | 0 |  | (7,611,000)
Under-recoverd gas costs | (5,056,000) |  | (383,000)
Other | (11,751,000) |  | (13,699,000)
Total deferred tax liabilities | (445,995,000) |  | (427,576,000)
Total net deferred tax liabilities | (382,021,000) |  | (362,678,000)
Internal Revenue Service (IRS) [Member] |  |  |
Deferred tax liabilities |  |  |
Tax credit carryforward | 7,500,000 |  |
NJNG [Member] |  |  |
Deferred tax assets |  |  |
Investment tax credits | $ 2,800,000 |  |
[1] | Includes $2.8 million for NJNG, which is being amortized over the life of the related assets and $7.5 million for NJRCEV, which is ITC carryforward.

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