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A technician opens a pressure gas valve inside the Oil and Natural Gas Corp. gathering station on the outskirts of the western Indian city of Ahmedabad March 2, 2012. 
A technician opens a pressure gas valve inside the Oil and Natural Gas Corp. gathering station on the outskirts of the western Indian city of Ahmedabad March 2, 2012. 
(Amit Dave/REUTERS)

Tuesday's analyst upgrades and downgrades

Inside the Market’s roundup of some of today’s key analyst actions. This file will be updated during the trading day.

TD Securities analyst Scott Treadwell believes Enerflex Ltd. has reshaped itself for the better with its $430-million (U.S.) acquisition of the international assets of privately held Axip Energy Services LP.