Bunker Survey (ROB) is generally carried out when delivering or re-delivering a ship, under a time charter agreement. So, it is most of the time carried out in conjunction with an On Hire / Off Hire Condition Survey. It is a documented evidence of the actual quantities of Fuel Oil and Diesel Oil at a given point in time and prevents later claims and disputes. The report includes the statement of bunkers remaining on board (HSFO, LSFO, MGO or MDO) at the time of sounding, an estimation of the consumption from sounding to re-delivery or from delivery and a final quantity certificate.