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An attendee demonstrates 3D Field Assistant glasses during the 2016 Offshore Technology Conference (OTC) in Houston, Texas, U.S., on Tuesday, May 3, 2016. The OTC gathers energy professionals to exchange ideas and opinions to advance scientific and technical knowledge for offshore resources. Photographer: Aaron M. Sprecher/Bloomberg via Getty Images

An attendee demonstrates 3D Field Assistant glasses during the 2016 Offshore Technology Conference (OTC) in Houston, Texas, U.S., on Tuesday, May 3, 2016. The OTC gathers energy professionals to exchange ideas and opinions to advance scientific and technical knowledge for offshore resources. Photographer: Aaron M. Sprecher/Bloomberg via Getty Images