Oil Companies Trail on Environment Disclosure: Corporate Canada

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Canada’s biggest energy companies including Suncor Energy Inc. and Imperial Oil Ltd. are trailing global peers in reporting environmental performance as scrutiny of the oil sands intensifies.

The 10 largest Canadian oil and natural gas producers by market value scored an average 31.7 out of 100 on environmental-performance disclosures in 2011, the last year with information for all companies, according to data compiled by Bloomberg. The Environmental Disclosure Scores weigh information such as emissions, spills and water use.