Iran issued a 60-day warning to President Trump, vowing that "talks won't silence us" even after signing a peace memorandum, and stated it would hit back if the U.S. crosses the line. China supported the U.S.-Iran Memorandum of Understanding, with Foreign Ministry spokesperson Guo Jiakun urging all sides to respect sovereignty and avoid military action. Iran unveiled its heaviest-ever offshore oil platform, the 6,200-ton P4 platform, at the Reshadat oilfield in the Persian Gulf, expected to increase production by 35,000 barrels per day and inject 80,000 barrels of water daily. A new book claimed that U.S. Vice President JD Vance suggested India and Saudi Arabia as possible contributors to a peacekeeping mission in Ukraine during an Oval Office meeting in January 2026. President Trump launched a Justice Department probe into major oil companies, accusing them of failing to pass lower crude oil prices.