With the amount of oil that we remove from the ground, how does the surface of the earth not collapse in on itself, especially when we exhaust the supply of oil?
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There’s a lot of Earth. The crust is over seven million cubic kilometers in volume. Our proven oil reserves plus the high estimate of what we’ve already extracted are (does math) a bit over four hundred cubic kilometers spread all around that crust.
Even then, the oil is not generally in pools, but caught up in porous rock like a big sponge, so there’s still structure there when it’s removed. And even then, groundwater often forces its way in to fill the void.
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