It is also an example of the kind of joint venture arrangement that has allowed Sonangol to share in the development of key oil service industries.

The state oil company holds a 30% stake in the company, in partnership with Italian-owned Orlean Invest.

Sonils is the Sonangol-appointed operator for the Port of Luanda concession, but for most oil industry insiders the company's name is synonymous with the physical base.

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