NEW YORK (TheStreet) -- RATINGS CHANGES

National Oilwell Varco (NOV - Get Report) was downgraded to hold at TheStreet Ratings. You can view the full analysis from the report here: NOV Ratings Report.

Stone Energy (SGY) was downgraded to sell at TheStreet Ratings. You can view the full analysis from the report here: SGY Ratings Report.

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This article was written by a staff member of TheStreet.