The natural-gas industry, bowing to longtime pressure, will disclose more information about the chemicals it uses in the controversial process of hydraulic fracturing.

On Friday, Texas Gov. Rick Perry signed into law a bill that will require companies to make public the chemicals they use on every hydraulic fracturing job in the state. While a handful of other states have passed similar measures, Texas's law is significant because oil and gas drilling is a key industry in the state and the industry vocally supported the measure....