Quarterly reports

14-11-2011 QSr3/2011 Consolidated quarterly report QSr3/2011 Consolidated quarterly report of Petrolinvest Group For 3rd quarter 2011. 16-05-2011 QSr1/2011 Consolidated quarterly report QSr1/2011 Consolidated quarterly report of Petrolinvest Group For 1st quarter 2011. 01-03-2011 QSr4/2010 Consolidated quarterly report QSr4/2010 Consolidated quarterly report of Petrolinvest Group For 4th quarter 2010. 15-11-2010 QSr3/2010 Consolidated quarterly report QSr3/2010 Consolidated quarterly report of Petrolinvest Group For 3rd quarter 2010. 17-05-2010 QSr1/2010 Consolidated quarterly report QSr1/2010 Consolidated quarterly report of Petrolinvest Group For 1st quarter 2010. 16-11-2009 QSr3/2009 Consolidated quarterly report QSr3/2009 Consolidated quarterly report of Petrolinvest Group For 3rd quarter 2009. 15-05-2009 QSr1/2009 Consolidated quarterly report QSr1/2009 Consolidated quarterly report of Petrolinvest Group For 1st quarter 2009. 02-03-2009 QSr4/2008 Consolidated quarterly report QSr4/2008 Consolidated quarterly report of Petrolinvest Group For 4th quarter 2008. 14-11-2008 QSr3/2008 Consolidated quarterly report QSr3/2008 Consolidated quarterly report of Petrolinvest Group For 3rd quarter 2008. 14-08-2008 QSr2/2008 Consolidated quarterly report QSr2/2008 Consolidated quarterly report of Petrolinvest Group For 2nd quarter 2008. 15-05-2008 QSr1/2008 Consolidated quarterly report QSr1/2008 Consolidated quarterly report of Petrolinvest Group For 1st quarter 2008.