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UBS Upgrades Gran Tierra Energy (GTE) to Buy Jan 18, 2011 08:34AM
UBS Downgrades Gran Tierra Energy Inc. (GTE) to Neutral Mar 19, 2010 08:04AM
UBS Upgrades Gran Tierra Energy (GTE) to Buy Feb 22, 2010 10:31AM
UBS Downgrades Gran Tierra Energy (GTE) to Neutral Dec 18, 2009 09:36AM
Notable Analyst Ratings Changes 11/25: EXXI, IWA, VPRT Upgraded; BNHN, NRG, GTE Downgraded Nov 25, 2009 11:35AM


Oct 14, 2009 09:05AM UBS Initiates Coverage on Gran Tierra Energy (GTE) with a Buy
Jun 22, 2009 09:10AM Morning Movers 6/22: SUAI, AVII, NGSX, EMKR Higher; LNET, AEG, ALU, GTE Lower