Tenneco (formerly
Tenneco Automotive and originally
Tennessee Gas Transmission Company) is an American
Fortune 500 company that has been publicly traded on the
NYSE since November 5, 1999 under the symbol TEN. Tenneco, with headquarters in
Lake Forest, Illinois,
United States is an automotive components
original equipment manufacturer and an after-market ride-control and emissions products. In 2011 it reported a revenue of $7.2 billion.