Project Description


Enabling Fuel Savings Everywhere


CaptainAR Bunker Survey brings efficiency through technology.
We remove operative risk and prepare maritime operations, preventing bunker delivery losses.
These insights translate to streamlined decision-making, cristal-clear, and inviolate readings, quickly estimating consumption problems.

Our Surveyors focuses on reducing our clients’ business risks. We enable our clients to check quickly and confidently our Surveyors work, delivering greater accuracy in a shorter time, for less investment.

Thanks to our cross-industries knowledge, our exclusive online platform allows an inner view of the real situation, a strong deterrent against malpractice.
Periodically audited, our Surveyors consolidate integrity as the main value in their daily service.


We work onboard any vessel’s type to determine the amount of bunker in tanks (FO, DO).

CaptainAR marine surveyors have extensive experience conducting bunker surveys before and after time charter periods.

During bunkering

Also known as On/Off Hire Bunker, done when the ship is at Port Terminal before and after the bunkering.

Checking On-Demand:

We measure the amount of bunker on board the ship at request at any given time.

We do this with fierce precision, delivering surveys which are an important loss-prevention measure as part of documentation procedures required in the event of a dispute or claim.


We deliver an online and offline report, almost in real-time. This 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.

We offer different kinds of bunker Surveys:

  • Bunker Detective Survey
  • Bunker Quantity & Quality
  • On – Off Hire Bunker Survey
  • Remaining on board (ROB) Survey
  • Sludge Survey

Bunker Survey is also known as Bunker Delivery Survey, Bunker Quantity Survey (BQS), or Bunker Stem Survey.

Our Maritime Services