The answer to this question may already be obvious to you but let's try and see how big a role oil plays in your daily life.
When you got out of bed this morning, the electricity you used to cook breakfast may have been generated from an oil-burning generating station; or perhaps your family uses a natural gas-burning stove. You were able to enjoy breakfast in comfort and warmth because of the oil-burning furnace in your basement. Next you may have taken a gasoline or diesel powered car (or bus) to school. So, as you can see, before you even started your school day you already used a certain amount of petroleum. Many of us tend to take these conveniences for granted. Try and imagine how your life might change if we suddenly lost our supply of oil.