City A.M. | Premier Oil leaps 31% after 'historic' discovery Financial Times Shares in Premier Oil have surged as much as 33 per cent this morning after it announced a “historic and significant” discovery in the shallow waters of the Gulf of Mexico.The oil explorer said the find is the fifth-biggest discovery anywhere in the ... Premier Oil shares surge on 'world class' oil discovery offshore Mexico Premier Oil hits 'world class' discovery offshore Mexico Updated: Premier Oil and Talos make one billion barrel oil discovery |