Fracking slump deepens as Schlumberger walks oil ‘tightrope’

Machinery used to fracture shale formations stands at a Royal Dutch Shell Plc hydraulic fracking site near Mentone, Texas, U.S., on Thursday, March 2, 2017.  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., on Thursday, March 2, 2017. Photographer: Matthew Busch/Bloomberg

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