Group 1 - The share price of Nordic American Tankers Limited (NAT) increased by 8.07% from October 10 to October 17, 2025, making it one of the top-performing energy stocks during that week [1] - Nordic American Tankers is a Bermuda-based company that specializes in operating Suezmax crude oil tankers [2] - The surge in NAT's stock price was influenced by the International Maritime Organization's decision to defer a vote on a global carbon pricing system for the shipping industry by one year, a plan that faced opposition from the U.S. and Saudi Arabia [3] Group 2 - President Donald Trump expressed strong opposition to the proposed global carbon tax on shipping, labeling it a "scam tax" and indicating that the U.S. would not comply with it [4]