Norway doesn't need the money from additional drilling right now. They might need the money later. Or NATO may need the oil directly later...
Also, oil is pretty good at powering engines but utterly essential for making things.
Rotating machinery, linear machinery, turbine oil for wind farms, dielectric oil used in transformers and other HV electronics, cooling oil, cutting oil, gearboxes, almost all plastics, and hydraulics are all essentially oil based processes.
The reason machinery can run for any significant length of time? It’s almost always oil.
If it moves, it likely has oil in it. People really only think of it as a fuel for vehicles, but it is so very, very much more important for its other roles.
As potent as it is for a fuel, we should be focused on not burning it as it’s essential for civilization in ways people do not broadly realize yet.
Further, there is no shortage of oil reserves globally, so the "save it for later" argument makes little sense.