Bunker Stem - Optimal Quantity
Optimal bunker-stem size given ROB, differential price between the current and next port, and safety margin - the basic lift/leave split that underpins bunker-economics routing.
Total bunker needed
375.0t
Lift this port
255.0t
Savings vs. lifting next port
5,100USD
Formula, assumptions, and limits
If price-next > price-here: lift here up to tank capacity. If price-here > price-next: lift only minimum to reach next port. Always maintain 3-day safety plus weather contingency.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| Daily fuel consumption | t/day | previous voyage average | |
| Voyage duration | days | passage plan | |
| Safety margin | days | company policy | |
| Remain on board | t | tank soundings |