Russia\'s Gazprom energy giant said Friday it was switching its vast Shtokman field to liquefied natural gas production after initially planning to use half of it to pipe supplies to Europe. \"The balance between pipeline and liquefied gas is changing toward LNG. We are talking about 100 percent liquefaction except for gas intended to supply (the nearby) Murmansk region,\" Interfax quoted Gazprom boss Alexei Miller as saying.y