How much oil can an oil rig hold?

The amount of oil an oil rig can hold varies significantly depending on its design and purpose. Offshore oil rigs typically have storage tanks that can hold anywhere from several thousand to several million barrels of oil. For example, some modern floating production storage and offloading (FPSO) units can store over 1 million barrels of oil. However, the actual capacity will depend on the specific rig and its operational setup.