Tullow Oil Plc said an exploration well off Namibia was a dud, damping enthusiasm over a frontier area that's attracted renewed interest amid oil's recovery.

(Bloomberg) -- Tullow Oil Plc said an exploration well off Namibia was a dud, damping enthusiasm over a frontier area that's attracted renewed interest amid oil's recovery.

The Cormorant-1 well in the PEL-37 license found only "non-commercial hydrocarbons," London-based Tullow said Monday. While disappointing, the announcement was shrugged off by investors who hadn't pinned hopes on a discovery.

Tullow rose 2.7 percent to 253.5 pence at 10:35 a.m. in London as benchmark Brent crude traded at a four-year high. Analysts at SP Angel Corporate Finance LLP said the well data narrowed down the potential area for making a find.

"Given the extensive 3D seismic that exists, these results will be integrated with the existing data set, which should allow for further improvements," they said in a note.

Explorers have returned to Namibia with the rally in crude this year, hoping to revive prospects in the southern African nation that went quiet after at least 14 wells failed to find buy severe service valves commercial oil deposits. Exxon Mobil Corp. bought stakes in Namibian fields in August, while Chariot Oil & Gas Ltd. has contracted the Ocean Rig Poseidon -- the same rig used by Tullow -- to drill a well this year.

"The Cormorant-1 frontier exploration well was a bold attempt to open a new oil play," Tullow's exploration director, Angus McCoss, said in a statement. "We will analyze the data gathered before deciding on any future activity."

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To contact the editors responsible for this story: James Herron at This email address is being protected from spambots. You need JavaScript enabled to view it., Amanda Jordan, Helen Robertson

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