A top executive at German utility Uniper has played down European concerns over increasing dependence on liquefied natural gas (LNG) from the United States, saying companies sign contracts with firms rather than governments, while stressing the need for diversification. U.S. President Donald Trump's transactional diplomacy and his pursuit of "energy dominance" has sharpened European concerns about their heavy reliance on U.S. LNG, which replaced most of the volumes previously supplied by Russia.