The Financial Times reported the information.
According to three sources familiar with the talks in Brussels, Denmark will target tankers passing through its straits without Western insurance, in accordance with laws that allow states to inspect ships they believe pose a threat to the environment.
All Russian oil transported through the Baltic Sea, or approximately 60% of Russia's total maritime exports, crosses the Danish straits on its way to international markets.
The G7 restriction requires Western ship insurers to cover only Russian shipments if the oil was sold for less than $60 per barrel. But more and more tankers carrying Russian oil are suspected of sailing with falsified financial statements or non-Western insurance.
The EU is concerned that non-Western insurance policies may not be effective in the event of an oil spill.
The volume of Russian oil passing through the Danish straits every day is equivalent to about 2 million barrels of crude oil or three Aframax ships, a common ship used for Russian exports.
At the same time, the European Commission declined to comment on the proposed measures, but noted that its President Ursula von der Leyen had promised to take further "actions to tighten the oil price cap."
Earlier, media reported that oil imports from Russia to Turkey reached a record level in November, amounting to about 100,000 barrels per day.