The transport system is unique due to the transport of goods must be in the form of a liquid is the same freight from origin to destination. There is no transport, return. Popular items include water pipeline transportation of crude oil Petroleum and natural gas products. Present utilization of oil pipelines is not yet fully should. Range of pipe that is most active between Lam Luk Ka oil to suvarnabhumi international airport, which is sending oil to provide services to other carriers, which transport oil to top entrepreneurs more than road due to lower freight costs, because they don't have to invest in construction of pipelines and infrastructure across the country against the pipe system, which are concentrated in the East and around. Bangkok area only.