US sanctions Russian oil companies, including Gazprom Neft. (Photo: ft.com)

Notably, Gazprom Neft, Surgutneftegas, 180 Russian tankers, oil traders, and insurance companies were included.

The move is part of an effort to reduce Russia's energy revenue, which the US claims fuels its conflict in Ukraine. The sanctions also ban Russia from accessing US services related to crude oil exploration, production, and associated products.