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.png2018-11-08 17:05:002018-11-08 17:05:00Callon Petroleum Names Jeffrey Balmer As COO Gary Newberry’s Successor
