Also, is R&D in fracking transferable? Or is it just tech that will be irrelevant in 20-30 years? (I don't have a good picture on this one; I could see a reasonable argument that we will be using natural gas for a long time, even when we're a mostly-renewable economy, since it's a convenient-to-transport form of energy as LNG).
EDIT: It might be useful for enabling greater storage density of CO2 in rock formations if we attempt to sequester CO2 out of the atmosphere at scale: https://phys.org/news/2018-11-co2-underground-curb-carbon-em...
Destructive uses of aquifers may mean we need skills in underground water table remediation. I don't think fracking directly helps (I think it hinders) but we're going to need to understand how to use it to fix things as well as extract things.
End of the day, the dollar will inflate away in the long run. We will have created more value with oil than the shieks and Russian mob bosses yielded in dollar terms.