After Texaco had left Ecuador, Chevron Corporation merged with Texaco. So the US attorney sued Chevron Canada Limited, a corporation removed by seven levels from Chevron Corporation. Chevron Canada Limited is an operating company that explores for gas and oil in Canada. Nor was Chevron Canada Limited established to shield Chevron Corporation from its obligations in any way. Nor was Chevron Canada Limited a "puppet" of Chevron Corporation.

Source: Forbes January 21, 2017 14:35 UTC