.. The only use for which oil is really direly necessary for civilization is lubricants, and biological sources will cover that.

I see this vision of the future a lot, and it is not possible. Because given this alternative lots of things which we would not currently do becomes very palatable.

Such as cheap-skating reactor construction.  There is no natural law keeping anyone from ripping out the furnace of a coal plant, sticking in a fission heat source and turning it back on.

Nor is it required by physical reality that one has to hold a decade of hearings before running a railline. And so on and so forth.