Hellenic Petroleum : ANNOUNCEMENT PURCHASE OF OWN SHARES WITHIN THE FRAMEWORK OF STOCK OPTION PLAN

Hellenic Petroleum S.A. (the Company) announces that, in accordance with the provisions of the applicable legislation (Article 16 of codified law 2190/1920, Regulation (EU) No 596/2014 of the European Parliament and of the Council and of the Commission Delegated Regulation (EU) 2016/1052) and in implementation of the current Stock Option Plan which was approved by virtue of the resolutions of the General Meeting of the Company's shareholders dated 25.6.2015 and 6.7.2017 and pursuant to the resolutions of its Board of Directors dated 22.6.2017 and 10.7.2017 (under delegated power provided by the resolution of the General Meeting of the Company's shareholders of 25.6.2015), the Company shall commence to acquire treasury stocks for a time period starting on 11.7.2017 until 5.12.2018. The maximum number of treasury stocks that could be acquired by the Company is 3,600,000. The upper limit of the acquisition value is 15 euros per share while the lower one is the nominal value of the share. The maximum average daily volume purchase shall be the 25% of the average daily volume of the shares during June 2017, that is the month preceding this announcement.