DSSI

Diamond S Shipping Inc

A tanker company that hauled crude oil and refined petroleum products across the seas, Diamond S Shipping grew into one of the world's largest owners of medium-range product tankers. It was founded in 2007 by private-equity firm First Reserve and shipping veteran Craig Stevenson Jr., whose surname likely inspired the "S" in the name. In 2021 it merged with International Seaways, which kept its own name.