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IMOS - Voyage Bunkers

Home > Operations > Voyage Bunkers

If you have purchased the separate Bunkering module, see Bunkering rather than this section.

On the Voyage Bunkers form, you can plan forward bunkerings and follow the progress of your Bunker Requirements.

  • Multiple types, or grades, of fuel can be set up on the Fuel/Lube Types Term List in the Data Center. For each vessel, you can track up to five fuel types.

  • The Bunker Calculation Method is the method of valuing the fuel onboard; it determines how the cost of fuel is allocated to voyages.

To work with bunkers for the voyage, on the Voyage Manager toolbar, click Bunkers and then click Voyage Bunkers.

Summary Tab

Received quantities appear on the Summary tab after they are entered in Port Activities.

To bind a Bunker Invoice to the voyage, in the Bunker Liftings grid, the S check box must be selected.

Note: End Qty and End Prc will be imported to the next voyage as Initial Quantity and Price provided that this is a subsequent voyage. For example, if a vessel sails a TCTO voyage (1), a RELT voyage (2), and a TCTO voyage (3), the initial bunker quantity and price on the last voyage will be taken from the TCO contract (voyage 3) rather than from the End Qty and Price of the TCTO (voyage 1) because there are no bunkers recorded on the RELT voyage, which happens in between the two TC voyages. In order to commence a voyage .1MT of a any fuel type is required.

Fuel Zones

For voyages that are not already using Fuel Zones to calculate bunker consumption and have unsailed ports, a Use Fuel Zones button appears in the bottom right corner. To recalculate estimated bunker consumption and cost based on information entered in Fuel Zones in the Data Center, click Use Fuel Zones.

If you have configured a Fuel Zone Set, you can select it, rather than the Default set, at the bottom of this form.

Use Scrubbers

When the Use Scrubbers check box is selected, low sulfur bunkers are not used for at-sea consumption within ECA zones. Instead, high sulfur ("H"-type in the Vessel) bunkers is consumed. In-port consumption still adheres to Vessel/Fuel Zone bunker configuration if a given port is within an ECA zone.

Detail Tabs

This form has a detail tab for each bunker grade. On each individual bunker grade tab, you can enter the Operator Quantity. The best-known price is defaulted, but you can change it to maintain the P&L bunker expenses. It is the assigned price for this lifting until an invoice is issued for this lifting or a Bunker Purchase is recorded for the port.

Req Qty is only used for a standalone Bunker Requirement, and it cannot be edited because a Bunker Requirement can be linked at a later time.

Note: The decimal places displayed for bunker quantity are hard-coded and cannot be configured.

Detail Tab for LNG

The Detail tab for LNG has additional Boil-Off Price, Forced Boil-Off Price, and NBOG Speed Bal/Laden fields at the bottom.

Bunker Calculations - Bunker Details Report

The Voyage Performance Report contains vital information for understanding the FIFO queue, quantity, and price associated with fuel for a voyage. When running this report, select Bunker Details during setup and then navigate to that page of the report, where you will see a breakdown of each fuel type, quantity, and price.

Surveys Tab

To enter Survey Costs, on the Voyage Bunkers toolbar, click Add Survey Costs.

On the Survey Costs form, you can enter information about a survey and allocate parts of the paid amount to rebill the linked TCO/TCI counterparties.

The following fields require a schema of 408 and above.

  • Date of Survey

  • Type of Survey (ROB Survey, Onhire Survey, Offhire Survey, ROB Survey + Monitor Bunkering Ops, Other)

  • Incident Reported

  • Incident Reported to Authorities

  • Type Of Incident (None, Delay, Short Delivery, Density Claim, Off-spec claim, Other)

  • Vendor

In Report Designer, these fields are available in Voyage > Operations Invoices > Survey Cost Details.

Survey costs appear on the Surveys tab.

You can record quantities prior to resurveying, a price for that quantity, and associated information such as fuel grade, supplier, and the barge name.

The following fields require a schema of 408 and above.

  • ROB Pre-Survey

  • Physical Supplier

  • Barge Name

  • Bunker Price

  • Grade (To view this field, enable the configuration flag CFGEnableVesselBunkerGrade.)

These fields are not accessible yet via Report Designer.

Swaps Tab

On the Swaps tab, all the linked trades appear. To access a Bunker Swap, right-click a line item and then click View Bunker Swap.

Bunker Requirements

To enter a Bunker Requirement, see the Typical Operator-Only Workflow or follow the steps for an Operator and a Bunker Manager.


With the Barging module, you can also do the following:

  • For Tow voyages, on the Voyage Bunkers toolbar, click Bunker Interpolator to access the Bunker Interpolator and initiate the calculation.

  • View bunker consumption during Stop delays in the voyage, calculated by the Bunker Interpolator. It appears in the Stop column on the Summary and Detail tabs.

  • On the Voyage Bunkers toolbar, click Reports and then click Bunker Interpolation Details Report.

Related Configuration Flags



Disable Insufficient Bunker Warnings by Default

When set to Y, when a new voyage is created, the Turn Off Insufficient Bunker Warnings check box is selected by default, but it can be cleared.

Enable Operations Estimate Sea Cleaning

Enable estimated sea cleaning consumption to be entered on the Bunkers form.

Enable Scrubber Type

When enabled, a scrubber drop-down menu appears on the Port, Voyage Bunkers, Bunker Planning, and Vessel forms accessed through an Estimate. On the Port and Vessel forms, the drop-down menu reflects scrubber values allowed at the port and equipped in the vessel. On the Voyage Estimate and Voyage, it reflects the scrubber type used for bunker calculations. On the Vessel form, the “Use Scrubbers” check box is replaced with the new “Scrubber Type” drop-down menu. The Fuel Zones form has two tabs to support “Scrubber” and “Non-Scrubber” configurations. These new options facilitate bunker calculations to use the IMO 2020 regulations.

Exclude TC Consumption from Bunker Calcs

When enabled, the operations bunker calculations use the consumption rates from the Vessel form instead of those specified in a Time Charter. This can be used for performance at the end of the charter.

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