US natural gas production to surge 60% in 20 years, study says

Machinery used to fracture shale formations stands at a Royal Dutch Shell Plc hydraulic fracking site near Mentone, Texas, U.S. Photographer: Matthew Busch/Bloomberg
Machinery used to fracture shale formations stands at a Royal Dutch Shell Plc hydraulic fracking site near Mentone, Texas, U.S. Photographer: Matthew Busch/Bloomberg

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