| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Macdonald River (Bendemeer) |  | Namoi River | 169,000 | -30.8833000000 | 151.1670000000 | Map | |||||
| Manilla River |  | Namoi River | 138,000 | -30.7500000000 | 150.7166666667 | Map | |||||
| Mooki River |  | Namoi River | 128,000 | -30.9666666667 | 150.2833333333 | Map | |||||
| Peel River (New South Wales) |  | Namoi River | 210,000 | -30.9167000000 | 150.4830000000 | Map |