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Turkish new building Ulusoy-14 bunkers heavy fuel oil - Flensburger Schiffbau-Gesellschaft - 2012

In shipping, bunkering is the takeover of fuels (e.g. coal or heavy oil ) for propulsion and the storage of cargo for the ship's own use.

The space required for the storage of these fuels is called a bunker, hence the term bunkering in the sense of store . The coal bunkers on ships were partly at the same height, partly higher than the boiler rooms, so that the coal that was sliding down was easier to remove.

Since the heavy oils (also called bunker oils ), which are mostly used for propulsion of ships with internal combustion engines , have a cut-resistant consistency at normal ambient temperatures, they are heated for bunkering and stored in one or more bunkers in the ship. In the upper picture on the bunker boat , the yellow floating hoses can be seen as an oil barrier .

Colloquially, bunkers are also used to denote the deliberate hoarding of consumables or durables over an indefinite period of time due to the fear of an imminent shortage.


  • Jürgen Gebauer, Egon Krenz: Marine Encyclopedia from A-Z . Licensed edition by Tosa Verlag, Vienna 2003, ISBN 3-85492-757-6 .

Web links


  1. Gebauer, Krenz, p. 50