Oil production is the process of extracting crude oil from the earth, which is a vital energy source for many countries. This process typically involves drilling wells into underground reservoirs where oil is trapped. Once extracted, the crude oil is transported to refineries, where it is processed into various products like gasoline, diesel, and other petrochemicals used in everyday life. The oil industry plays a significant role in the global economy, influencing everything from energy prices to international relations. Countries rich in oil, such as Saudi Arabia and Russia, often have substantial political and economic power due to their resources.