Helicopter services company Bristow Group is branching out to unmanned aerial vehicles, yesterday announcing a $4.2 million investment in UK-based Sky-Futures, a provider of drone inspection data services for the oil and gas industry. The investment gives Bristow access to Sky-Futures UAV or drone inspection operational expertise, data capturing and analysis and training capabilities. “In this new market reality where continued cost pressures compel companies to find new solutions, our investment…