Why comparing individual product prices rarely reflects real procurement performance and how Port Tiering creates a clearer fleet-wide cost benchmark.
Marine lubricant procurement is often evaluated through individual product prices or isolated port comparisons. While this may work for a single purchase, it rarely provides a clear picture of procurement performance across an entire fleet. A fleet may lift lubricants in 30–40 or more ports over the course of a year. Looking only at individual prices - for example comparing a single supply in Rotterdam with a previous delivery in Singapore - does not reveal whether procurement decisions are consistently cost-efficient.
What procurement teams really need is a structured way to compare supply costs across all ports used by the fleet.
How port tiering enables better benchmarking
Port Tiering offers a practical way to compare lubricant supply costs across a global port network. The starting point is to define a representative product basket for the fleet. This basket usually contains the main lubricant grades supplied to vessels. Each product is assigned a weighting based on its typical share of fleet consumption.
For example, if cylinder oil represents roughly 60% of the fleet’s total lubricant demand and system oil accounts for 25%, these proportions should be reflected in the basket weighting. Larger or more diverse fleets may choose to create separate baskets. A container fleet and a bulk fleet, for instance, may have different lubricant consumption patterns. Once the basket and weightings are defined, procurement teams combine them with the contractual prices available in each port. This allows the calculation of an average basket price per port.
The next step is to establish a benchmark. In global comparisons, Singapore often represents one of the lowest-cost supply locations. All other ports can then be indexed relative to this benchmark.
For example:
Singapore = 1.00 ⎪ Rotterdam = 1.08 ⎪ Houston = 1.16
In this case, Rotterdam is 8% more expensive than Singapore, but also 8% less expensive than Houston for the defined product basket.
These indexed prices can then be grouped into Port Tiers. A common structure uses five tiers. Port Tier 1 typically includes the lowest-cost ports and those within roughly 10-15% of the benchmark. Each additional tier represents progressively higher price levels, while Tier 5 captures the most expensive supply locations. Once the tiers are defined, procurement teams can analyse historical supply activity. By reviewing the last 12 months of liftings - often combined with a shorter recent period such as the last quarter - it becomes clear how much volume was supplied in each tier.
Measuring performance through the Port Tier KPI
This analysis creates a simple but powerful KPI for procurement performance. Instead of evaluating individual orders, teams can track how much of the fleet’s total supply volume is lifted in lower-cost Port Tiers.
Many organisations monitor indicators such as:
- percentage of volume supplied in Tier 1 and Tier 2 ports
- percentage of volume supplied across Tier 1–3
For example, a fleet may find that only 40% of its annual supply volume is lifted in Tier 1 and Tier 2 ports. By improving planning and port selection, this share might gradually increase to 55–60%.
This type of shift often translates directly into measurable cost improvements - even when procurement continues working with the same suppliers and contracts. More advanced analysis can go one step further by linking Port Tier performance with the actual average purchase prices (price per liter) for each Port Tier and the product mix delivered in the same period of time. This helps procurement teams understand which operational decisions have the strongest impact on fleet-wide procurement costs.
Track tangible cost savings
Port Tiering turns scattered port price comparisons into a structured procurement KPI. By monitoring where supply volumes are lifted, procurement teams gain a clear view of whether purchasing decisions consistently move toward more cost-efficient ports. Over time, this visibility allows fleets to steer lifting volumes toward more competitive supply locations - creating measurable savings without changing supplier relationships or contract structures.
