Greek Prime Minister Kyriakos Mitsotakis condemned Russia's attack on Ukraine on Thursday but said Greece has an adequate energy supply.
Greece imports 40% of its natural gas from Russia and has agreements with Azerbaijan and Algeria.
"We are working on scenarios which have to do with the biggest possible absorption of fluctuations in energy prices," Mitsotakis said after chairing a national security council meeting.
Mitsotakis, who will meet EU leaders at a summit later on Thursday to debate new sanctions on Russia and the energy issue, condemned Russia's attack on Ukraine, saying revisionist actions threaten geopolitical stability in Europe.
"Greece respects the territorial integrity, sovereignty and independence of all countries. It condemns revisionist actions which violate these values and brute force which will, unfortunately, cause the loss of many innocent lives," he said
