Aegean Oil S.A. is a Greek oil company. It was a sister company of Aegean Marine Petroleum Network Inc. (AMPNI); they were owned by Melissanidis family in the past. Melisanidis sold AMPNI in 2016.

Aegean Oil is the most dynamic and rapidly growing company in the Greek petroleum market. The company, which already occupies a well established place in the top tier of companies that deal with the worldwide marketing and selling of refined fuel and lubricants, began its activities in the retail market in the early 2000 and became known with a network of 550 gas stations that have been developed throughout Greece.

Aegean Oil is the leading marine fuels physical supplier in Greece.