On Jan. 10 the US Treasury’s Office of Foreign Assets Control sanctioned 161 tankers and traders involved in about 2,000 shipments since the invasion began. It also acted against Moscow-based ship insurers and two companies — Surgutneftgas and Gazpromneft — which in the first 10 months of last year accounted for almost 30% of Russia’s oil exports.

The White House, now unconcerned about the effect on gas prices and inflation, blacklisted two of Russia’s biggest oil producers and nearly 200 tanker ships.

The Group of Seven democracies have sought to crimp Russia’s oil export earnings that help fund the war against Ukraine.

A tanker subject to the new U.S. sanctions is discharging Russian oil at a port operated by Shandong Port Group in east China, shipping data on LSEG Eikon showed on Thursday. The tanker is the first since last week's sanctions announcement to discharge in Shandong province where many of China's independent refineries that have been big importers of Russian crude are based.

An oil tanker sanctioned in Washington’s harshest round of curbs against Russia’s energy industry has become the first such vessel to dock at the Russian port of Kozmino, where it’s loading a cargo of crude.