Henry Hub the Global Gas Benchmark
Central to Giant's investment thesis is that increased LNG flows will drive development of a globally integrated market for natural gas based on the price of Louisiana's Henry Hub.
This article in the WSJ (here, and reproduced in the Australian behind different paywall here) identifies the development of this trend with some supporting data including increase in contrtact trading outside US hours (up 31% in 1H17) and fact that Anadarko has used HH as benchmark for LNG cargoes leaving Mozambique.