human
Can you explain why the price of gasoline keeps going up?
assistant
Well, the price of oil is determined by a number of factors. One factor is supply and demand. When there’s more oil available than people need, it can be sold at a lower price. But when there’s less oil available than people need, it has to be sold at a higher price. Another factor is the cost of extracting the oil from the ground. The more expensive it is to extract the oil, the more expensive the oil will be.