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Tsakos Energy Navigation Ltd is a provider of international seaborne crude oil and petroleum product transportation services. The company operated a fleet of modern crude oil and petroleum product tankers, including vessels chartered-in that provide world-wide marine transportation services for national and other independent oil companies and refiners under long, medium and short-term charters. Its fleet also includes LNG carriers, including chartered-in vessel and suezmax shuttle tankers with dynamic positioning technology (DP2). It operates in one reportable segment, the world-wide maritime transportation of liquid energy-related products.

Chevron is an integrated energy company with exploration, production, and refining operations worldwide. It is the second-largest oil company in the United States with 2025 worldwide net oil-equivalent production of 3.7 million barrels per day, including 8.5 billion cubic feet per day of natural gas and 2.3 million barrels of liquids per day. Production takes place in North America, South America, Europe, Africa, Asia, and Australia. The company's refining networks arelocated in the United States and Asia, with a total worldwide refining capacity of 1.8 million barrels of oil a day at year-end 2025. Net proved reserves at year-end 2025 stood at 10.6 billion barrels of oil equivalent, consisting of 5.7 billion barrels of liquids and 29.2 trillion cubic feet of natural gas.