A decade or so ago I calculated the size of a planetoid equal in volume to the amount of oil extracted since Colonel Drake sunk his 68-ft well in Titusville,Pennsylvania in 1858.
The diameter came in at 220-miles and in Earth orbit,would cast a shadow that would reach from Dallas,to Austin,Texas.
(for you math enthusiasts,calculate the orbital altitude,such that this orb would appear the same size as the Moon to a ground observer)