The US and its allies are reportedly pressuring several countries to ensure Russian tankers don’t sail under their flags

Western states are pressuring Liberia, the Marshall Islands, and Panama to boost checks of ships sailing under their flags to ensure they are not used to help Russia bypass sanctions, Reuters reported on Friday, citing sources familiar with the matter.

According to the report, Russian tankers sometimes switch their flags to those of the abovementioned countries, practicing so-called “flag-hopping” to transport oil sold above the Western price cap.

The calls to enforce oversight of the ships reportedly came from the US, EU, and UK in letters signed by Lindsey Whyte, head of international finance at the UK Treasury, John Berrigan, head of the European Commission’s financial services unit, and Brian Nelson, a terrorism and economic intelligence official at the US Treasury.

The price cap bans Western firms from providing insurance and other services to shipments of Russian crude unless the cargo is purchased at or below the $60-per-barrel price cap. While imposed nearly a year ago, the cap was not enforced until October this year, when the US started trying to close loopholes in the mechanism by sanctioning oil tankers and maritime companies suspected of transporting Russian oil above the price ceiling.

READ MORE: US vows to halve Russia’s energy revenues by 2030

Many in the West lament that the price cap is not working. The mechanism initially aimed to force Russia to continue exporting oil to prevent global prices from spiking while reducing Moscow’s revenue from crude sales. However, according to a Bloomberg report last month citing a study of trade and shipping data by the KSE Institute, over 99% of Russian seaborne oil sold in October alone was $79.40 per barrel, well above the Western cap.

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