http://signaloil.wpengine.com/wp-content/uploads/2015/10/Signal-Oil-logo-red-300x32.png00http://signaloil.wpengine.com/wp-content/uploads/2015/10/Signal-Oil-logo-red-300x32.png2018-06-25 12:50:002018-06-25 12:50:00Oilfield Service Investors Pull Back On Worries About US Shale Production