John Demopoulos is Senior Markets Manager at Argus Media, where he is responsible for ensuring methodological rigor across the Argus' Americas operations. Before that, he spent three years as Bureau Chief in Argus' New York office, where he built up a team of price reporters, launched a bunkers publication, and developed Argus' asphalt business.

John has covered fuel oil, crude, bunker, asphalt, tanker and natural gas markets, and has over a decade's experience in commodities. Before joining Argus, he was a freelance journalist, covering political and economic developments in Greece and the Balkans. He has a Master's degree from the London School of Economics and a bachelor's degree from King's College London. He lives in New York with his wife and two young daughters.