Norway could increase its gas supplies to Europe but would not be able to replace Russian gas, CEO of Norwegian gas company Statoil Helge Lund said.
Norway is Europe's second biggest gas supplier after Russia.
Russian state-controlled Gazprom cut off gas supplies to Ukraine over a price dispute, saying there was "not insignificant" risk for Russian gas transit to the EU.
Gas flows to Europe have been stable so far since Gazprom cut-off its supplies to Ukraine.
More top news
Rio Ferdinand has hit back at Kick It Out's criticism of him by labelling the anti-racism organisation as 'pointless'
When Alison Powell's four-year-old Labrador Missy would not stop sniffing and pawing her, she knew it was more than simple canine affection.
Police have confirmed that six arrests were made as part of their operation for the Arsenal v Galatasaray Champions League match