The Chicago Corporation investment trust is formed
The Chicago Corporation's subsidairy Tennessee Gas is incorporated as Tenneco, Inc.
Tenneco, Inc. spun-off its automotive division as Tenneco Automotive
The company rebranded as Tenneco to represent the expanding markets it served
Tenneco organized its business into two distinct divisions: Clean Air and Ride Performance
Tenneco acquired Federal-Mogul, doubling the size of the company
Tenneco restructured its business into four business groups: Clean Air, DRiV, Performance Solutions and Powertrain
Tenneco is acquired by Apollo Global Management
