I am the currency of a nation known for its fjords and Vikings. My value is closely tied to the price of oil, a key export for this country. My central bank manages a sovereign wealth fund, one of the largest in the world, primarily funded by petroleum revenue. Historically, I was part of the Scandinavian Monetary Union.

1. My name translates to 'crown' in English.
2. My symbol is 'kr'.
3. Oslo is a major city where I am used.
4. The Nobel Peace Prize ceremony is held in the country where I'm used.