PGNiG: Selected operating estimates of PGNiG SA for Q1 2013

The Management Board of Polskie Górnictwo Naftowe i Gazownictwo SA ("PGNiG") hereby publishes estimates of PGNiG's selected operating data for the first quarter 2013, i.e.:NATURAL GAS*Production volume: 1.15 billion cubic metres- including PGNiG Norway: 0.05 billion cubic metersImports volume: 3.5 billion cubic metres- including imports from countries east of Poland: 2.8 billion cubic metresSales volume outside PGNiG Group: 5.4 billion cubic metres- including PGNiG Sales & Trading to non-Polish customers: 0.3 billion cubic metresCRUDE OIL**Production volume: 225 thousand tonnes- including PGNiG Norway: 21 thousand tonnesSales volume: 207 thousand tonnes- including PGNiG Norway: 13 thousand tonnesHEAT AND ELECTRICITY***Heat sales volume: 18.51 PJElectricity sales volume: 1.53 TWh* Measured as high-methane gas equivalent, data of PGNiG Group** combined data for crude oil and condensate, data of PGNiG Group*** data of PGNiG Termika SAFurthermore, PGNiG informs that as at March 31st 2013 its stocks of gas (including mandatory stocks managed by the Minister of Economy) stored in underground high-methane gas storage facilities (i.e. Brzeźnica, Husów, Strachocina, Swarzów and Wierzchowice Underground Gas Storage Facilities and Mogilno Underground Gas Storage Cavern Facility) was approx. 1.2 billion cubic metres. This volume of gas stocks does not include the volume managed by Operator Systemu Przesyłowego GAZ-SYSTEM SA.The above data are estimates and may differ from the actual data, due to be disclosed on May 14th 2013 with the publication of the interim report.