When we bought our house last year, the guy who sold us the house told us that his father (who was the previous owner) did not change from oil heating to gas heating because he did not believe in reliable gas supply from Russia.

At that point I thought that to be somewhat eccentric - considering the last months (foundation of gas cartel, now this) I do not think that gas heating will be our primary choice when we install a new heating in the next two years...