If an area is protected, no oil development and no mining can take place. Some regulated commercial activities, such as tourism or fishing activities, can take place.
However, as I have already said, you should be in a good position to know that the federal government cannot tell the provinces how to use their natural resources. That's in the Canadian Constitution. I don't need to explain that to you, since you are a member of a separatist party. It seems to me that it should be natural for you to know that.