President Donald Trump said Russia and Ukraine had agreed to stop targeting each other's energy infrastructure, but Kyiv was caught off guard and neither side publicly confirmed a formal deal. Ukrainian President Volodymyr Zelenskyy said Kyiv would consider halting attacks on Russian energy facilities only with genuine Russian guarantees, while the Kremlin said the idea had been discussed without a formal proposal. Earlier efforts to halt strikes on power plants and refineries had failed. Ukrainian attacks on Russian oil facilities contributed to fuel rationing and Russia's July 2026 suspension of diesel exports, while AAA listed U.S. diesel at a record $6.23 a gallon on September 14. Market pricing for a ceasefire by December 31, 2026, rose to 24.5%.