Engineering studies are ongoing to update the design basis for the project and improve the accuracy of the cost  estimates in anticipation of a project sanction decision by the partners in 2013. Should the partners sanction Fort Hills  (Phase 1), production is not expected to start before 2017, ramping up to approximately 160,000 barrels per day of  bitumen production. Potential exists to double production with Phase 2, up to 320,000 barrels per day. In April 2012, we completed the purchase of SilverBirch Energy Corporation. The transaction gave us full ownership  of the Frontier project, including the Equinox property. SilverBirch assets, other than its interest in Frontier, Equinox  and Twin Lakes, were transferred to a new company owned by SilverBirch’s shareholders. Completion of this  transaction created a simplified ownership structure for Frontier, provided an opportunity to explore new partnerships  and other alternatives to move the project towards development, and reduced our exposure to oil sands leases not  amenable to mining. The Frontier project is located immediately northwest of the Fort Hills project in northern Alberta. We hold a 100%  interest in the Frontier project. In November 2011, the Frontier project application was submitted to regulators.  In 2012, provincial and federal regulatory agencies completed their initial review of the Frontier project application and  provided supplemental information requests. We prepared and submitted responses to all of these information requests  in January 2013. The Canadian Environmental Assessment Agency has provided estimates of the federal review  schedule for the Frontier project application. The cumulative federal review period is estimated to be approximately  two years. When time to respond to information requests is included, 2015 is the earliest an approval decision and  receipt of required permits are expected.  The Frontier project consists of approximately 28,960 hectares of oil sands leases and as at December 31, 2012,  our best estimate is that our 100% interest in the Frontier project represents approximately 2.8 billion barrels of  contingent bitumen resources. The project has been designed for up to four production lines with a total capacity  of approximately 277,000 barrels per day of bitumen; the first two production lines are planned to have a production  capacity of 159,000 barrels per day. The Frontier project includes an option of developing Equinox, 10 kilometres  south of Frontier, as a satellite operation. In 2012, no field exploration activities were undertaken — the focus was on supporting the regulatory application  review, consultations with stakeholders and ongoing engineering studies. A field exploration program is planned for  2013 to acquire additional geotechnical information to assist in future engineering studies. We hold a 50% interest in the Lease 421 Area, which is located east of the Fort Hills project in northern Alberta. Imperial  Oil and ExxonMobil jointly own the remaining 50%. During the first quarter of 2012, we acquired a 50% working  interest in Lease 899, which is immediately southwest of and adjacent to the Lease 421 Area. This increases the  contiguous land area of the Lease 421 Area project by 34%. To date, a total of 89 core holes have been completed  in the Lease 421 Area, including 30 core holes previously completed on Lease 899.  Wintering Hills is located near Drumheller, Alberta. We hold a 30% interest in Wintering Hills with Suncor Energy  Products Inc., a wholly owned subsidiary of Suncor Inc., the project operator. In 2012, the first full year of operation,  our share of power generation from Wintering Hills was 88 GWh, enough power to provide 57,000 tonnes of  CO ² -equivalent credits. Our share of expected power generation in 2013 is 85 to 90 GWh, which is dependent on  weather conditions.  Teck 2012 Annual Report 50 Wintering Hills Wind Power Facility Lease 421 Area Frontier Project Teck/SilverBirch Agreement