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ASSET RETIREMENT OBLIGATIONS (Tables) | 12 Months Ended
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Sep. 30, 2020
Asset Retirement Obligation Disclosure [Abstract] |
Analysis of Change in ARO Liability | The following is an analysis of the change in the Company’s ARO for the fiscal years ended September 30:
(Thousands) | 2020 |  | 2019
| NJNG | NJRCEV |  | NJNG | NJRCEV
Balance at October 1 | $ | 26,944 |  | $ | 4,102 |  |  | $ | 25,640 |  | $ | 3,048 |
Accretion | 1,476 |  | 196 |  |  | 1,427 |  | 150 |
Additions | — |  | 1,306 |  |  | 135 |  | 904 |
Change in estimated useful life | — |  | (1,160) |  |  | — |  | — |
Change in assumptions | 1,104 |  | — |  |  | — |  | — |
Retirements | (244) |  | — |  |  | (258) |  | — |
Other | — |  | — |  |  | — |  | — |
Balance at period end | $ | 29,280 |  | $ | 4,444 |  |  | $ | 26,944 |  | $ | 4,102 |
Schedule of Future Accretion | Accretion for the next five years, for the fiscal years ended September 30, is estimated to be as follows:
| Estimated
(Thousands) | Accretion
2021 | $ | 1,717 |
2022 | 1,789 |
2023 | 1,869 |
2024 | 1,948 |
2025 | 2,029 |
Total | $ | 9,352 |

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- Definition Tabular disclosure of the changes in carrying amount of a liability for asset retirement obligations, for changes such as new obligations, changes in estimates of existing obligations, spending on existing obligations, property dispositions, and foreign currency translation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13201-110859 + Details
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