The European Union is prepared to discuss with U.S. President-elect Trump boosting economic ties, including in the energy sector, an EU spokesperson told Reuters on Friday, hours after Trump threatened to impose “tariffs all the way” on the bloc if it doesn’t buy large volumes of American oil and gas. The EU is ready to discuss common interests in the energy sector with the U.S. as Europe is looking to phase out imports of Russian energy and diversify its sources of supply, the EU spokesperson told Reuters. Earlier on Friday,…