The refining sector reflected lower margins for three of the four major Canadian integrated energy companies in the first quarter compared to 2007.rnHusky Energy Inc. showed gains for its midstream and downstream operations in the first quarter, but Petro-Canada, Imperial Oil Limited and Suncor Energy Inc. were hampered somewhat by that sector of their operations.rnHusky reported net earnings of $887 million, an increase of 36% from $650 million in 2007. Cash flow from operations was $ 1.54 billion, a 16% increase compared to $ 1.32 billion last year. Sales and operating revenues, net of royalties, were $5.1 billion compared to $3.2 billion in 2007.
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机译：精炼行业反映出第一季度加拿大四家主要综合能源公司中的三家与2007年相比利润率下降。赫斯基能源公司（Husky Energy Inc.）第一季度中下游业务有所增长，但加拿大石油公司，帝国石油有限公司和Suncor Energy Inc.的业务受到一定程度的阻碍。rn赫斯基报告的净收益为8.87亿美元，比2007年的6.5亿美元增长了36％。运营现金流为15.4亿美元，比1.32美元增长了16％。去年十亿。扣除特许权使用费后的销售和营业收入为51亿美元，而2007年为32亿美元。
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