It’s a transition. They know how much oil, shale, coal they have left to refine; in the states the refining might bring more profits than fracking, etc, anyway. In the meantime, they have a lot of real estate retail locations and convenience stores to feed. They may become purely landlords.
And fossil fuels use is not going to dead stop even in the most idyllic situations. Airlines aren’t going anywhere. You can’t have electric planes and rockets.