Russia has turned to its so-called "shadow fleet" to carry out a roughly $29.3 million "semi-dark" ship-to-ship oil transfer in the Gulf of Oman, deliberately sidestepping Western sanctions, according to reports.

Maritime intelligence firm Windward AI reported on March 8 that the Russian-flagged tanker M/V TRUST, a vessel already blacklisted by the U.S., European Union and United Kingdom, carried out a "high-probability" covert crude transfer in Omani territorial waters.

Based on an estimated price of about $90 per barrel on March 10, the cargo involved in the transfer was valued at roughly $29.3 million.

"The timing of the operation coincided with heightened military escalation in the Gulf following Operation Epic Fury, suggesting the vessel exploited regional instability to conduct the transfer under reduced scrutiny," switched off its AIS transponder while holding what it called a "prolonged stationary meeting" with another tanker, likely producing an anonymous vessel to transfer cargo process.

A fully "dark" meeting, Windward said, typically involves two vessels not transmitting, but, in this case, only one ship appeared to be broadcasting, creating partial visibility that still complicates tracking efforts.

Such tactics are part of a broader strategy by Moscow to continue exporting crude despite sweeping Western sanctions imposed after Russia’s invasion of Ukraine.

The semi-dark oil transfer comes amid heightened volatility in global energy markets tied to the escalating conflict in the Middle East and limited traffic in the Strait of Hormuz given the joint U.S.-Israeli military action against Iran.

Oil topped $100 a barrel March 9 as traders priced in the risk that the conflict was disrupting flows through the Strait, which carries about a fifth of global supply, Secretary of War Pete Hegseth said Tuesday that Russia "should not be involved" in the escalating conflict between the U.S., Israel and Iran.

His comments followed reports suggesting Moscow may be providing intelligence support to Tehran, though the Kremlin has not publicly confirmed the claims.

On Russia's ship-to-ship semi-dark cargo transfer amid the ongoing conflict, Windward highlighted "operational blind spots that enable illicit maritime activity to proceed largely uninterrupted."