BRUSSELS — If a jet fuel crisis led to shortages across the European Union, member countries could be asked to share fuel reserves, Transport Commissioner Apostolos Tzitzikostas said Tuesday. The EU “maintains emergency stocks” of jet fuel that “can be and will be released only if necessary,” he said during a press briefing after a videoconference with EU transport ministers, adding: “Any national release of fuel must be done in full transparency to avoid market distortions.” Asked on the