10:08 AM EST - Petro-Canada : shares were lower after it widened its profits significantly during this year's second quarter, netting $845 million, compared with $472 million during the same period a year ago. Cash flow for the quarter was $1.35 billion, up from $754 million during the second quarter of 2006. Petro-Canada
shares T.PCA are trading down 47 cents at $58.53.
