International Seaways (NYSE:INSW), Inc. (NYSE: INSW) is an independent tanker company that provides seaborne transportation services to oil companies, commodity traders and national oil companies. The firm’s operations focus on the carriage of crude oil and refined petroleum products, offering both time charter and voyage charter arrangements. With a modern fleet of very large crude carriers (VLCCs), Suezmax and Aframax tankers, as well as medium range (MR) and Handy product tankers, International Seaways supports global energy supply chains across major trade routes.
Founded in 1997 as Diamond S Shipping, the company completed its initial public offering in the late 1990s and rebranded to International Seaways in September 2018. Headquartered in New York, it maintains commercial and technical offices in key maritime hubs such as Athens, London and Singapore. This geographic footprint enables close collaboration with charterers and efficient deployment of vessels to serve markets in the Atlantic Basin, the Middle East, Asia and beyond.
International Seaways’ core services include the transportation of crude oil from production areas to refining centers, as well as the delivery of refined products such as gasoline, diesel and jet fuel. The company also offers contract of affreightment arrangements, handling multiple liftings under a long‐term commitment. Its fleet is equipped with double hull designs and advanced navigation and safety systems, reflecting a commitment to environmental standards and maritime best practices.
Corporate leadership is headed by President and Chief Executive Officer Michael A. Zimmerman, supported by a board of directors with deep experience in shipping and energy markets. Under this leadership team, International Seaways continues to invest in fleet renewal and operational excellence, positioning itself to meet evolving customer requirements and regulatory demands in the global tanker industry.
