U.S. Department of Energy reviews for liquefied natural gas (LNG) export permits have lengthened under President Joe Biden's administration to 11 months or more, from seven weeks, according to government data.The delay could mean nearly completed LNG projects may not being able to supply big European buyers because of a lack of the permit. Increasing LNG exports is opposed by some U.S. industries who fear it could raise domestic prices, while environmental groups have raised concerns about continued expansion of a fossil fuel industry.Big swaths of U.S.