Earlier quoted context omitted.
And if you knew the manifests (quantity of oil) for the ship, just the value of the bitcount transaction could be used for tracking.
Or, if you knew the bitcoin addresses, you could figure out exactly how much oil is being moved. I would think oil data analysts would love to have access to that data (if they don't already).
We just need to watch for large transactions with the Iranian flag and boat emojis…