I'd say that is a very conservative estimate.
The abundance of cheap, clean-burning natural gas, especially the largest US gas field which sits astride the country's largest energy consuming market, should bring about a lot more natural gas demand.
One will see it sky-rocket one we get a reasonable Executive in the WH who will stop the illogical subsidizing of renewables and establishment of a national energy policy focused on creating jobs, minimization of energy costs to consumers and creating value via export of LNGs.