How long would 5 million barrels of oil last in the us?

The duration that 5 million barrels of oil would last in the U.S. depends on the country's oil consumption rate. As of recent years, the U.S. consumes approximately 20 million barrels of oil per day. Therefore, 5 million barrels would last about 0.25 days, or roughly 6 hours, if the consumption rate remains constant. However, actual usage can vary based on factors such as seasonal demand, economic conditions, and changes in energy policy.