Good journalism, exposing a network of companies doing 90 billion USD of oil exports from Russia. The give-away was that network of over 400 companies all used the same email server.

From the (paywalled) story:

"The FT was able to identify 442 web domains whose public registrations show they all use a single private server for their email, “mx.phoenixtrading.ltd”, showing that they share back-office functions."

"The FT was then able to identify companies by comparing the names in the domain to those of entities that appear in Russian and Indian customs records as involved in carrying Russian oil."

"For example, Foxton FZCO, a Dubai-based entity listed as the buyer of $5.6bn of oil in Russian export filings, matches “foxton-fzco.com”. Similarly, Advan Alliance, an entity listed in Indian filings as having sold $1.5bn of Russian oil into the country, can be linked to “advanalliance.ltd”. "

"Filings linked by the FT to the domain list show oil exports from Russia amounting to more than $90bn."

since the 2022 full scale Russian invasion of Ukraine, while the shadow fleet existed before, numbers have risen to 900-1200 ships globally

40 shadow fleet tankers, of which 17 in the last month, have reflagged as Russian from false flags or flags of convenience, according to Lloyds.