Eni has made a new oil discovery in the Minsala Marine exploration prospect in the Marine XII Block offshore Congo at 35 km (22 miles) from the shoreline and 12 km (7 miles) from the recent Nené Marine discovery, Eni said in a news release.

The discovery was made through the Minsala Marine 1 well which was drilled in 75 m (246 ft) of water depth and reached a total depth of 3,700 m (12,139 ft).

The well encountered a significant accumulation of light oil in the Lower Cretaceous-age presalt sequence, passing through an hydrocarbon column of 420 m (1,378 ft). Eni preliminarily estimates the potential of Minsala Marine discovery at about 1 Bboe in place, of which 80% oil, the release said.

Eni has already planned the appraisal plan of the discovery as well as started studies for the commercial development of this significant hydrocarbons reserves.

Eni through its own subsidiary Eni Congo SA is operator of Marine XII with a 65% share stake.