Drillers fighting for survival in world of cheap oil

Workers walk towards Halliburton Co. "sand castles" at an Anadarko Petroleum Corp. hydraulic fracturing (fracking) site north of Dacono, Colorado, U.S. Photographer: Jamie Schwaberow/Bloomberg
Workers walk towards Halliburton Co. "sand castles" at an Anadarko Petroleum Corp. hydraulic fracturing (fracking) site north of Dacono, Colorado, U.S. Photographer: Jamie Schwaberow/Bloomberg

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