Water Scarcity Impedes Saudi Arabia's Shale-Gas Production

Saudi Arabia may need at least a decade to develop shale-gas production to a scale comparable to the U.S. because of the desert kingdom’s short supplies of water, state oil company officials said. Shale gas is produced by a technique known as hydraulic fracturing, or fracking, in which massive amounts of water, chemicals and sand are blasted underground to free trapped hydrocarbons. Finding the necessary amount of water in the regions where Saudi Arabian Oil Co. is exploring for shale gas will be difficult, according to Amin Nasser, senior vice president of upstream at the company known as Saudi Aramco...