After Putin sent troops into Ukraine, Russia was hit with sanctions that targeted its economy.
Russia said Wednesday it was moving to limit the damage from an EU oil ban as its other key energy export, gas, has fallen after President Vladimir Putin sent troops to Ukraine.
At a summit on Monday, the EU agreed to a sixth package of sanctions on Moscow that will see the majority of Russian oil stopped, but exempted supplies by pipeline in a concession to Hungary.
"Sanctions will have a negative effect for Europe, us and the whole global energy market," Kremlin spokesman Dmitry Peskov told reporters.
Peskov added that a "reorientation" was under way to find alternatives for the oil that will no longer be sold to Europe.
"These are purposeful, systematic actions that will allow us to minimise the negative consequences," he said.
After Putin sent troops into Ukraine on February 24, Russia was hit with a barrage of sanctions that targeted its economy and financial institutions.
The Wall Street Journal reported that OPEC was considering whether to remove Russia from an agreement that has locked producers into limited output increases.
Moscow's removal would mean an early end to the pact and allow major crude nations such as Saudi Arabia to open the taps, analysts say.
Separately, Russian energy giant Gazprom said on Wednesday that its gas exports to countries outside of the former Soviet Union dropped by more than a quarter year-on-year between January and May after losing several European clients.
Exports to countries outside the region totalled 61 billion cubic metres, a 27.6-percent fall from the same period last year, Gazprom said in a statement.
Gazprom added that gas deliveries to China via the "Power of Siberia" pipeline were increasing, but it did not provide any figures.
Moscow has demanded that clients from "unfriendly countries" -- including EU member states -- now pay for their gas in rubles.
The new requirement is seen as a measure to sidestep Western financial sanctions against Russia's central bank imposed over Moscow's offensive in Ukraine.
So far Poland, Bulgaria, Finland and the Netherlands have had their natural gas deliveries suspended over refusing to pay in rubles.
Danish energy company Orsted said that Gazprom Export would cut gas supplies to Denmark on Wednesday after the Danish company refused to pay in rubles.
EU countries have scrambled to reduce their dependency on Russian energy but are divided about imposing a natural gas embargo as several member states are heavily reliant on Moscow's energy supplies.
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