Upgrade to "Buy" from Oriel. Potential 600p is just from a median size Sea Lion find (excludes other potentials) - and its likely very much bigger than that.
http://uk.reuters.com/article/idUKLDE6461W620100507
UPDATE 1-Rockhopper says Falklands oil find high quality
Fri May 7, 2010 4:23pm BST
* Says further testing at Sea Lion gives encouraging results
* Eyes flow test at later date
* Stock up over 50 pct
LONDON, May 7 (Reuters) - British oil company Rockhopper Exploration (RKH.L) confirmed its controversial drilling programme near the Falkland Islands has found high quality oil, boosting its shares for a second straight day.
Rockhopper, which initially announced the discovery on Thursday, said fresh data showed the find was a "high quality reservoir interval with very good porosity and permeability".
The data increased the likelihood that the company would return to carry out a flow test, Managing Director Samuel Moody said in a statement on Friday.
Oil exploration in the islands off the coast of South America has sparked protests from Argentina, which claims the British territory.
Shares in Rockhopper were trading up 50 percent at 140 pence a share by 1514 GMT, after more than doubling on Thursday, valuing the company at around 243 million pounds ($375.8 million).
Oriel Securities analyst Richard Rose upgraded his stance on Rockhopper to "buy".
"In the main 25m pay zone permeabilities range from 200-500 Milidarcies with peaks of over 1 Darcy. In layman's terms this indicates a decent quality reservoir," Rose said in a note.
"In addition, no oil/water contact has been encountered, another positive," he added.
While further drilling will be needed to confirm the findings, a commercial discovery based on the current reserve estimates would be worth up to 600 pence a share, Rose said.