CALGARY – Suncor Energy Inc. (TSX:SU) reported a fourth-quarter net loss as it took a big charge related to its long-shelved and economically “challenged” Voyageur oilsands upgrader.

Canada’s biggest energy company said late Tuesday that the net loss for the last three months of 2012 was $562 million, or 37 cents per share, compared with net earnings of $1.43 billion, or 91 cents per share, during the same period a year earlier.

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