We don't watch the film anymore because we've seen it so many times so we'll introduce it walk out and we'll come back in right about when I wake up in the morning and walk over to the shop and everything's changed.
Like any business the oil industry runs on the basic premise of supply and demand. The more supply - the lower the price. The higher the demand - the higher price. In other words the more people who can buy oil the higher the price of oil.