CBC News. Suncor, Shell both announce unexpected oilsands production decreases.

Oilsands giant Suncor Energy announced Wednesday that corrosion damage in June at its main facility will reduce annual production targets to an average of 220,000 barrels per day, down from an original expectation of 225,000 to 230,000 barrels.

The news comes one day after a similar warning from the Muskeg River mine, part of the new Athabasca oilsands project operated by Shell Canada.