Large (not ultra large) oil tankers might carry 200,000 tonnes and consume 25 ton of heavy bunker fuel per day.
LNG gas carriers equally have their own stats.
This is something you can (or at the very least should be able to) back of envelope estimate ...
https://www.planete-energies.com/en/media/article/transporti...
https://en.wikipedia.org/wiki/W%C3%A4rtsil%C3%A4-Sulzer_RTA9...
Now you just need mean trip times, profit margin, etc. and you're away.
Order of magnitude addition to costs, though, sounds a little extreme.
True but it was turned off some time before that happened
Large (not ultra large) oil tankers might carry 200,000 tonnes and consume 25 ton of heavy bunker fuel per day.
LNG gas carriers equally have their own stats.
This is something you can (or at the very least should be able to) back of envelope estimate ...
https://www.planete-energies.com/en/media/article/transporti...
https://en.wikipedia.org/wiki/W%C3%A4rtsil%C3%A4-Sulzer_RTA9...
Now you just need mean trip times, profit margin, etc. and you're away.
Order of magnitude addition to costs, though, sounds a little extreme.