I'm guessing that OP is referring to the publicly owned $1trn oil fund that the government has only recently dipped into. They're actually now claiming they're going to minimise withdrawals due to an increase in revenue (1).

Wish my own government here in Australia had the brains and chutzpah to do this a few years back. We've never been much cop when it comes to visionary economics (apart from, arguably, rum being our first legal currency).

(1) https://www.bloomberg.com/news/articles/2017-10-02/norway-s-...