The final phase involved a 3-month shutdown of certain units to facilitate tie-in of new facilities. The company said the refinery currently is ramping up to full production.

The tie-ins are a part of a $1 billion investment to increase the refinery"s ability to process sour crude from the company"s oil sands operations in Northern Alberta, as well as to improve the facility"s environmental performance by reducing sulfur dioxide emissions, and to enable the production of ultralow-sulfur diesel.

The upgrades to enable production of ultralow-sulfur diesel were completed in 2006.

PIN/OGJ.COM