Crude oil was formed millions of years ago from the remains of leaving things where is crude oil found today
Crude oil is found in underground reservoirs or deposits located beneath the Earth's surface. These reservoirs are usually found in sedimentary rocks, such as sandstone or limestone, which were formed millions of years ago in areas such as ancient seas or lakes.
Crude oil is distributed unevenly across the world, with significant reserves found in several regions. Some of the largest oil-producing countries are Saudi Arabia, the United States, Russia, Canada, Iraq, and Iran. Other countries like Kuwait, United Arab Emirates, Venezuela, Nigeria, and Libya also have substantial reserves. Additionally, offshore oil fields are found in coastal areas and beneath the ocean floor.