Unipec, the trading arm of oil major Sinopec, remains the world’s largest tanker charterer in tonnage terms, but there have been some notable changes in the rankings for 2021.

Brazilian oil major Petrobras emerged as the largest charterer of suezmax tankers last year, according to figures compiled by Poten & Partners.

Petrobras, which was not even in the top 10 in 2019, jumped from seventh in 2020 to first last year in what was described as a "remarkable achievement" by the US-based brokerage.