CNBC | The longs are all gone for oil, says IHS Markit's Yergin CNBC The longs are all gone for oil, says IHS Markit's Yergin. 2 Hours Ago. Dan Yergin of IHS Markit joins 'Squawk Box' to discuss the OPEC and G-20 meeting in terms of what will drive the oil price. Watch CNBC Live TV ... |