The primary method used to transport oil in the U.S. is pipelines.

Pipelines are the most common and efficient method for transporting oil across the United States. This vast network of pipelines spans thousands of miles, connecting major oil-producing regions like Texas and North Dakota to refineries and distribution centers. Pipelines are preferred for their ability to move large quantities of oil safely, continuously, and cost-effectively. While other methods such as railroads, trucks, and ships are used for specific purposes, pipelines remain the backbone of the U.S. oil transportation infrastructure, ensuring the steady flow of crude and refined oil products throughout the country.