New government data shows that U.S. natural gas exports outstripped imports by an average of 870 million cubic feet a day through June 2018, more than double the average of 340 million cubic feet for the first six months of 2017, according to the Department of Energy.

The Energy Department said U.S. natural gas exports have outstripped imports for five of the first six months of 2018. Almost all of U.S. natural gas imports comes from Canada.

The report said as of March U.S. liquefied natural gas export capacity reached 3.6 billion cubic feet a day. Houston-based Cheniere Energy's Sabine Pass export facility makes up the bulk of that export capacity at 2.8 billion cubic feet a day.

The company is currently building another natural gas export facility in Corpus Christi.