Ukrainian Defense Forces have struck Russia's Sheskharis oil terminal, the largest oil-loading facility in southern Russia. It has also targeted the associated Grushovaya transshipment depot in Novorossiysk, alongside a Russian shadow-fleet tanker named CHRYSALIS in the Black Sea, the General Staff reports.
The CHRYSALIS strike extends Ukraine's documented operational campaign against vessels in Russia's so-called "shadow fleet". It is the architecture of opaque-ownership tankers, as ACLED documented this week as both a sanctions-evasion mechanism and a hybrid-warfare platform against NATO members.
The strikes on Russian communication and logistics infrastructure in occupied Luhansk, Zaporizhzhia, and Donetsk oblasts represent the tactical layer of the same overnight operation.
The shadow fleet target
The tanker CHRYSALIS strike continues a documented Ukrainian operational pattern targeting vessels in Russia's shadow fleet, often under non-Russian flags and opaque ownership, that Russia uses to circumvent Western sanctions and transport up to 80% of its crude-oil maritime exports.
On 30 November 2025, Ukrainian naval drones struck the Gambia-flagged tankers Kairos and Virat in the Black Sea while they were en route empty to Novorossiysk to load Russian oil.
The CHRYSALIS strike on 23 May extends that targeting pattern. ACLED named Ukrainian deep-strike operations against the Russian oil-export architecture as the principal pressure on the shadow fleet's economic foundation in its report this week, with strikes on Russian oil terminals at Ust-Luga and Primorsk in the Baltic putting "export capacity under danger."
Today's strikes extend that pressure to Russia's southern oil-export corridor on the Black Sea.
The pattern at scale
The commander of Ukraine's Unmanned Systems Forces, Major Robert "Madiar" Brovdi, reported on 23 May that Ukrainian drones had attacked 13 major Russian oil facilities in the first 23 days of May, the news agency Reuters reported.
Earlier this week, Brovdi said that six of Russia's ten largest oil refineries had stopped processing crude oil following Ukrainian attacks. On Saturday morning, Ukrainian drones also struck a Russian military frigate and a hovercraft missile boat near the Novorossiysk naval base. The extent of damage was not confirmed.
