Oil & Gas Companies: Gran Tierra Closes Brazil Deal
August 31, 2010 (FinancialWire) ( Go to http://www.financialwire.net/?s=ftrdnwswnd for all of today’s featured news .) — Gran Tierra Energy, Inc. (AMEX: GTE) (TSX: GTE) said that it has finalized an agreement with Alvorada Petroleo S.A., under which Gran …