If you need natural gas, you can have a word with U.S. Transmission. The company, a unit of Spectra Energy , manages that company's natural gas transmission and storage business and provides pipeline infrastructure and storage services. It operates more than 19,100 miles of pipelines connecting North America's major natural gas supply areas to markets in Canada and the northeastern and southeastern US. Major pipelines include Texas Eastern Transmission, East Tennessee Natural Gas, Algonquin Gas Transmission, and Ozark Gas Transmission. U.S. Transmission provides storage primarily through its East Tennessee Natural Gas, Texas Eastern Transmission, and Saltville Gas Storage units.