OPEC rescued oil from 'total collapse,' Barkindo says, but the US prevented 'major chaos'
February 28, 2019 at 05:02 AM EST
Oil producing group OPEC is responsible for salvaging the entire oil industry with its deal to curb output, OPEC's secretary general told CNBC, but the U.S. shale revolution has helped to prevent "major, major energy chaos" in the world.