Dinosaurs are a myth created by the oil industry who fostered the myth that oil comes from composted prehistoric critters, and plants, so folks will buy into believing that oil is scarce so that the public will allow big oil to jack up the price of gasoline at will (kinda like De Biers manufactures diamond scarcity).
In fact most petroleum doesnt even come out of the ground at all. They set up sweat shops in third world countries where third world teenagers are chained to seats with suction devices clamped to their faces. The devices collect the oil off the skin of the thousands of teenagers (who forced to sit still for this at upto 10 hours at a time), where it siphoned off into barrels, or often straight into the holds of ocean tankers. Thats where the petroleum that you put into your gas tank really comes from!