Let's say a barrel of oil travels 15,000 km from Saudi Arabia to Texas, gets refined, gets shipped another 10,000 km to Europe, then the last 1,000 km overland by truck.
This reasonably well sourced Reddit post [0] says big oil tankers burn 0.1% of their fuel per 1,000 km, smaller ones a bit more. Say 0.2% on aggregate, that's 5% for the whole journey, 10% because the ship is empty half the time.
From the same source, a truck burns about 3% per 1,000 km. This seems too high: for a 40,000 kg loaded truck that's less than 1 kmpl or 2.5 mpg. But let's believe it, double it for empty journeys, and we still only get 16%.
I used very conservative estimates here: surely most oil doesn't travel anywhere near that far.
Alternative thought experiment: look at the traffic on the highway. If this were true, even neglecting oil burnt for heating or electricity or aviation, you'd expect 40% of the vehicles to be tanker trucks.
[0] https://www.reddit.com/r/explainlikeimfive/comments/2jozd7/e...
I’d expect tanker trucks to carry far more fuel than the typical vehicle.
Fuel saves from slow steaming and being empty are massive.
> If this were true, even neglecting oil burnt for heating or electricity or aviation, you'd expect 40% of the vehicles to be tanker trucks.
The US has a lot of domestic pipelines [1], and a lot of the remainder is done by train [2] because trains are the most efficient way to transport bulk goods over extremely long distances.
[1] https://www.bts.gov/geography/geospatial-portal/us-petroleum...
[2] https://www.aar.org/wp-content/uploads/2018/07/AAR-US-Rail-C...
https://qz.com/2113243/forty-percent-of-all-shipping-cargo-c...
I would not believe it at all without source.
Maybe someone got confused by "transportation" altogether being major consumer?
i.e. A friend that works on rigs is flown to and from rigs from anywhere on earth every month, then choppers out to the rig and back. Same for everyone that works on the rigs.