This document discusses the impact of shale gas development in North America on global natural gas markets and the oil and gas industry in the Gulf Cooperation Council (GCC) region. It finds that shale gas has significantly increased US natural gas production and lowered prices, making the US a potential gas exporter. This could threaten established gas exporters like Qatar by increasing competition and downward pressure on gas prices. GCC countries that import gas may benefit from better import prices but gas-rich countries face threats from potential substitution of gas for oil. Overall, shale gas presents both opportunities and threats to the GCC that will depend on future production and price trends in global gas markets.