There is a group of people on bluesky tracking the russian shadow fleet, they are often trying to fake their registrations, which cannot be confirmed ofc.

https://sketchy.boats/ https://bsky.app/profile/pa.nton.cx https://bsky.app/profile/lloydslisted.bsky.social

Edit: and this is how it's going regarding the stopping of sanctioned and false flagged oil tankers: https://www.lloydslist.com/LL1154431/Baltic-shadow-fleet-stand-off-continues-as-Russia-warns-of-tanker-raids

if i were NATO, i would have fucked up russia's business long ago and snatched a few loads of free crude too.