The well intersected 20 metres of gas condensate pay and 13 metres of oil pay in the turbidite sand, Tullow said, adding that samples showed the oil to be good quality between 28 and 44 degrees API.
The company said pressure data showed the accumulation was also separate from the Tweneboa, Enyenra and Ntomme fields.
Tullow’s exploration director, Angus McCoss, said: “Wawa-1 was the first of three important remaining exploration wells to be drilled in the second half of 2012, to close out the exploration phase of the Deepwater Tano licence.
“It found light oil and gas condensate, trapped separately from TEN and demonstrates once again that liquid rich hydrocarbons are pervasive in this prospective licence.”
Tullow drilled the Wawa-1 to a total depth of 3322 metres using the semi-submersible drilling rig Atwood Hunter in a water depth of 587 metres and will now be suspended for possible future use in appraisal and development operations.
The company plans to drill the remaining two exploration wells, Okure and Sapele, on the Deepwater Tano licence before the end of the year.
Tullow operates the licence with a 49.95% stake and is partnered by Kosmos Energy (18%), Anadarko Petroleum (18%), Sa