Coal-seam gas has never been turned into LNG for export before, and three separate groups are working to be the first to do so, all based at the Australian port town of Gladstone in Queensland state.

• 煤层气此前从未转化为液化天然气用于出口，目前有三家公司正在努力争取率先实现这一目标，它们都位于澳大利亚昆士兰州港口城市Gladstone。