 Berkshire Hathaway Energys deal is not transformative for Berkshire ticker: BRK.Ait is a 9.7 billion addition to a 100 billion energy segment. Natural gas use is growing in the U.S. Americans use nearly 50 more of it now than they did 10 years ago, and U.S. producers are exporting a growing amount of natural gas in liquefied form. 