DERIVATIVE INSTRUMENTS - VOLUME (Details) - Bcf |
6 Months Ended | 12 Months Ended |
|---|---|---|
Mar. 31, 2026 |
Sep. 30, 2025 |
|
| NJNG | Long | Futures | ||
| Derivative [Line Items] | ||
| Notional amount | 25.9 | 36.1 |
| NJNG | Long | Physical Commodity | ||
| Derivative [Line Items] | ||
| Notional amount | 6.9 | 6.0 |
| ES | Long | Futures | ||
| Derivative [Line Items] | ||
| Notional amount | 3.2 | |
| ES | Long | Physical Commodity | ||
| Derivative [Line Items] | ||
| Notional amount | 0.1 | 5.5 |
| ES | Short | Futures | ||
| Derivative [Line Items] | ||
| Notional amount | (4.7) |