Hellenic Petroleum operates three refineries in Greece, in Thessaloniki, Elefsina and Aspropyrgos, which account for 57% of the refining capacity of the country (the remaining 43% belongs to Motor Oil Hellas). Also owns OKTA facilities in Skopje, Republic of North Macedonia for transportation and marketing of petroleum products. Crude oil for the refineries is supplied from Saudi Arabia, Iraq, Iran, Libya and Russia.