In now we use oil varied such as add fuel for car,plane and product of oil is have 2 type : 1.LPG 2.fuel (gasoline,kerosene,diesel,fuel oils) then if we use more and more oil,the oil will be less then have an affect on thr future. In the future if oil is not enough for people in the world everybody will fight over a oil then the price of oil will be high because oil demand of consumers have a lot of not enough with oil content