“I have a different question. I believe oil is still being created underground. Any oil withdrawn will be replaced naturally over time. I’m wondering if the fracking chemicals will stop the natural development process.”
No. The fracking chemistry is 99+% inert. Virtually all of the frac water is pulled back out of the well as reject water. What’s left are sand proppant and surface active agents (so the liquids flow more easily through the fractured pores).
Even if they weren't, an ocean of them wouldn't be enough to make significant presence underneath the earth's surface, even if they didn't evaporate in moment.
Just oy.