Group Corporate Structure
Refining	HELLENIC PETROLEUM S.A.
Fuels Marketing	HELLENIC FUELS AND LUBRICANTS INDUSTRIAL AND COMMERCIAL S.A. CALYPSO LTD
Chemicals	HELLENIC PETROLEUM S.A. DIAXON Α.Β.Ε.Ε.
International Activities	ΟΚΤΑ ΑD SKOPJE HELLENIC PETROLEUM CYPRUS LTD RAMOIL CYPRUS LTD EKO BULGARIA EAD EKO SERBIA AD JUGOPETROL AD
Oil & Gas Exploration & Production	HELLENIC PETROLEUM S.A. HELPE PATRAIKOS S.A. HELPE UPSTREAM S.A. HELPE ARTA PREVEZA S.A. HELPE NW PELOPONISSOS S.A. HELPE WEST KERKYRA S.A. HELPE SEA OF THRACE S.A.
Power Generation & Trading	ELPEDISON BV
Renewable Energy Sources	HELLENIC PETROLEUM - RENEWABLE ENERGY SOURCES S.A.
Engineering	ASPROFOS S.A.
Crude/Products Transportation & Pipeline Networks	A.A.F.P.C. S.A. VARDAX S.A. HELLENIC PETROLEUM - APOLLON MARITIME COMPANY HELLENIC PETROLEUM - POSEIDON MARITIME COMPANY
Natural Gas	DEPA S.A.