I have attempted to generate a factual, neutral news headline from the provided bullet points: Ukraine ignored U.S. requests to stop strikes on Russian oil sites
• Kamala Harris asked Zelensky to stop attacking Russian oil refineries • Zelensky and aides were annoyed because the attacks were successful • They ignored the request, unsure if it reflected Biden admin consensus • Ukraine doubled down after subsequent warnings from U.S. officials • A major Ukrainian strike hit Russia's 3rd biggest refinery on April 2