The companies -- ExxonMobil, Shell and Conoco -- will now push on with their feasibility study, which they still expect to complete by the end of the year, while hoping that the remaining natives will eventually throw their support behind the project.

Leaders in the Deh Cho region, located in the southern tip of the Northwest Territories, refused to sign and are linking support for the pipeline with the successful resolution of their land claim settlements with the federal government.