| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Warne (river) |  | 99,800,000 | Oker | 24,500 | 52.0981000000 | 10.5711000000 | Map | ||||
| Röseckenbach |  | 4,200,000 | Oker | 4,000 | 51.8942000000 | 10.4994000000 | Map | ||||
| Hurlebach |  | 7,900,000 | Oker | 8,000 | 51.9576388900 | 10.5667222200 | Map | ||||
| Kellwasser | Oker | 51.8216666667 | 10.4466666667 | Map | |||||||
| Ilse (Oker) |  | 290,000,000 | 900 | Oker | 40,000 | 52.0691000000 | 10.5697000000 | Map |