Grupa LOTOS S.A. debuted on the Warsaw Stock Exchange (WSE) on June 9th 2005. Under the Issue Prospectus, 78,700,000 ordinary Series A shares with a par value of PLN 1 per share and 35,000,000 ordinary Series B shares with a par value of PLN 1 per share were introduced to public trading. Following the issue of the Series B shares, on June 28th 2005, the increase in the Company's share capital to PLN 113,700,000 was noted.

The issue price was set at PLN 29, and after trading started, the market price rose to PLN 32 - that is, by 10.34%.

Through the public offering, Grupa LOTOS raised proceeds of PLN 1,015,000,000. These were applied towards the acquisition of shares in Rafineria Czechowice S.A. (80.04% ownership interest), Rafineria Jasło S.A. (80.01%), Rafineria Nafty Glimar S.A. (91.54%) and Petrobaltic S.A. (69%), as well as to implementation of the 10+ Programme at the Company’s refinery in Gdańsk.

On July 17th 2009, another increase in Grupa LOTOS' share capital was registered, after the issue of 16,173,362 ordinary Series C shares covered by a non-cash contribution in the form of shares in LOTOS Petrobaltic, LOTOS Jasło and LOTOS Czechowice.

The current total number of Company shares is 129,873,362.