Extorre Gold Mines Ltd.

+100 drill holes completed on multiple mineralized zones

VANCOUVER, BRITISH COLUMBIA -- (Marketwire) -- 06/21/10 -- Extorre Gold Mines Limited (TSX: XG) (FRANKFURT: E1R) (PINK SHEETS: EXGMF) ('Extorre' or the 'Company') reports that 4 drill rigs are testing new veins and/or new drill targets, as part of a program designed to meet our goal of expanding the Cerro Moro resources to 2 million ounces. Over 100 new drill holes have been drilled since the April 19, 2010 Resource Statement.