An oiler is a type of petroleum-carrying ship that is used to transport oil and other petroleum products. It is typically a large vessel with a specialized hull designed to carry oil in bulk. The ship is equipped with tanks, pumps, and other equipment necessary for the safe and efficient transportation of oil. Oiler ships are also equipped with safety features such as firefighting systems and lifeboats. They are an important part of the global oil industry, providing a vital link between oil producers and consumers.