2013年，美国能源部批准了第一批大规模天然气出口设施；尽管这一气源并未形成稳定的天然气流，但美国和全球气价之间的差异意味着它潜力无限。
In 2013, the US Department of Energy authorized the first substantial gas-export facilities; while the trickle is not yet a steady flow, the gap between US and much-higher world prices implies tremendous potential benefits.