According to Fractracker.com, most pipelines are buried underground. The US network consists of more than 1.2 million miles of pipelines for natural gas and almost 150,000 miles of pipeline for petroleum products. The US network is larger than another other country’s network. Natural gas pipelines transport natural gas from gas wells and import/export facilities to homes, businesses export facilities, and other locations. There are three types of natural gas pipelines: Pipelines for gathering the “raw material for production wells” Pipelines for transmission Pipelines for distribution Petroleum pipelines transport crude oil or natural gas liquids. The three types of petroleum pipelines are: Gathering pipelines Crude oil pipelines Refined product pipelines Various federal and state agencies regulate these pipelines including the Federal Energy Regulatory Commission (FERC), the Pipeline and Hazardous Materials Administration (PHMSA), and the US Army Corps of Engineers.