How much heavy fuel oil is used by tankers?

Tankers typically use heavy fuel oil (HFO) as their primary fuel due to its cost-effectiveness and high energy content. The amount of HFO consumed varies widely depending on the size and type of the tanker, its operational speed, and the duration of its journey. On average, large oil tankers may consume anywhere from 50 to 100 metric tons of fuel per day during transit. However, regulations and environmental considerations are increasingly pushing the industry towards cleaner alternatives.