Norway is more reliant on oil/gas money than almost every country on Earth. e.g. to its small population it produces significantly more oil per capita than Saudi Arabia. So yeah for instance it is/was way easier for Britain to kill its privatized oil industry.
Neither Norway nor Saudi Arabia will ever voluntarily kill its oil industry. That will only happen when other countries stop buying.
However, Saudi Arabia needs higher prices than Norway to balance the budget, so Saudi Arabia will likely cut first.