An oil CEO says crude prices could surge 90% to $70 by fall because US firms have 'over-cut production'

· West Texas Intermediate could explode 90% from current levels and reach as high as $70 a barrel by fall this year, according to the CEO of oil drilling company Canary. 
· Dan Eberhart told Markets Insider US oil producers will see a "mini-supply shock" in Autumn as they have "over-cut production." 
· The OPEC is meeting...