Russia has warned it could cut its gas supplies to the West if there is a ban on Russian oil imports.
It has said it may stop the flow of gas through pipelines from Russia to Germany in response to Berlin’s decision last month to halt the opening of the new Nord Stream 2 pipeline.
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Deputy prime minister Alexander Novak said: “In connection with unfounded accusations against Russia regarding the energy crisis in Europe and the imposition of a ban on Nord Stream 2, we have every right to take a matching decision and impose an embargo on gas pumping through the Nord Stream 1 gas pipeline.”
“But so far we are not taking such a decision,” he said.
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Earlier he said oil prices could double to $300 a barrel if the US and its allies banned imports of Russian oil.
“A rejection of Russian oil would lead to catastrophic consequences for the global market,” Mr Novak said.
Analysts at Bank of America said this was an inflated estimate and the figure would be more like $200 a barrel if most of Russia’s oil exports were cut off and resulted in a shortfall of five million barrels a day.
Russia is the world’s third-largest oil producer, but the largest exporter, supplying the EU with 40% of its gas and 30% of its oil.
There have been repeated calls for the West to cease its use of Russian gas and oil to provide the ultimate economic punishment to Vladimir Putin for invading Ukraine.
The impact of the invasion is already being blamed for helping push UK fuel prices to a new high.
US President Joe Biden is considering a ban on the imports of Russian oil while weighing actions that would limit the impact to prices at the pumps.
He held a video conference call on Monday with British Prime Minister Boris Johnson, French President Emmanuel Macron and German Chancellor Olaf Scholz as he pushed for their support.
Germany, the biggest buyer of Russian crude oil, has rejected plans to ban energy imports.
It is accelerating its plans to expand its use of alternative energy sources but cannot halt imports of Russian energy overnight, said Mr Scholz.
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The likelihood of Europe refusing to join the United States in any boycott helped keep the cost of Brent crude oil in check on Tuesday at $127 a barrel – down sharply from the highs of $139 seen early on Monday.
There were also early indications that the UK contract for natural gas delivery in April was to fall back significantly at the market open.
Mr Johnson said the world needs to “move away as fast as possible” from a reliance on Russian energy supplies but there would need to be a “step-by-step transition period” while countries around the world find substitutes.
He added that although the UK could quickly move away from Russian hydrocarbons, as only 2.3% of UK gas comes from Russia, the world needs to move away from Russian hydrocarbons as one.