The partners said they would take a final investment decision on the project, expected to export around 15 million metric tonnes of LNG a year.
The rebuild was originally contracted in August 2014 to provide mechanical and construction services to restore the nitrogen rejection unit, which had been damaged in an earlier fire.
WesPac first proposed the project in 2011 to receive, store and transfer crude between trains, vessels and pipelines at a new $200 million terminal.
The pipeline, which is currently under construction, has the potential to serve the broader Rocky Mountain area resource plays, the release said.
The Tower rich gas processing complex has been sanctioned by the Cutbank Ridge Partnership, a collaboration between Veresen, Encana Corp. and a subsidiary of Mitsubishi Corp.
A TransCanada subcontractor caused the spills in Alberta while drilling to install a natural gas pipeline under the river, said company spokesman Mark Cooper.
Since its initial application nearly seven years ago, Transcanada’s Keystone XL pipeline has become a symbol for politicians and environmental groups—for different reasons.
TransCanada asked for a delay to address its pipeline route in Nebraska after the U.S. State Department previously halted the review for similar reasons in the state.
Canadian regulators approved the additional test results of Enbridge Line 9 crude oil pipeline in September, clearing the way for the delayed 300,000 bbl/d route to the east of the country.
Calgary-based TransCanada said it had sent a letter to the U.S. State Department to suspend its application while the company goes through a state review process in Nebraska.