A leading mining equipment supplier says the shale-driven resurgence of the US energy sector could have a dire impact upon Australia's LNG and coal-seam gas developments.

Keith Cochrane, chief executive of FTSE-Listed Weir Group, said that developments in North America’s energy sector have already had a shock impact on global coal prices, and will continue to rattle international markets as the US emerges as the world’s biggest producer of fossil fuels on the back of new…