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Image courtesy of Eni.

Italy’s Eni started production at its offshore Congo Nené Marine field Monday, just 16 months after making its initial exploration discovery.

The Nené Marine field, located in Marine XII Block at a water depth of 91 feet, produces from the Djeno pre-salt formation.

The field will be developed in several stages and will include the installation of production platforms and the drilling of over 30 wells.

Production at the field is expected to plateau at over 140,000 barrels of oil equivalent per day.

First phase production is expected to yield 7,500 boe/d and will be sent to the Eni operated Zatchi production platform through a 55,774 foot long subsea pipeline.

During the production test, Nené Marine 3 well delivered in excess of 5,000 barrels of oil per day with a density of 36 degree API.

In recent years, Eni has discovered about 3.5 billion barrels of oil equivalent resources in the Congolese Marine XII Block, with 1.5 billion barrels attributable to the Nené Marine field.

Eni operates Marine XII with a 65 percent stake.

UK-based New Age African Global Energy holds a 25 percent stake and Congo’s Société Nationale des Pétroles du Congo holds a 10 percent stake.