Oil exports from Russian ports bound for European Union member states, which historically have been the biggest buyers of Russian crude, have risen to an average of 1.6 million barrels a day so far in April, according to TankerTrackers.com. Exports had dropped to 1.3 million a day in March following the Ukraine invasion. Similar data from Kpler, another commodities data provider, showed flows rose to 1.3 million a day in April from 1 million in mid-March.

Oil from Russian ports is increasingly being shipped with its destination unknown. In April so far, over 11.1 million barrels were loaded into tankers without a planned route, more than to any country, according to TankerTrackers.com. That is up from almost none before the invasion.